Circular No. 27/2012/TT-BTNMT stipulates National Technical Regulations on the environment.

 CIRCULAR

ISSUING NATIONAL ENVIRONMENTAL TECHNICAL REGULATIONS

_____________________

 

Pursuant to the Law on Standards and Technical Regulations dated June 29, 2006;

Based on Decree No. 132/2008/NĐ-CP dated December 31, 2008 of the Government detailing implementation of certain provisions

Pursuant to Decree No. 25/2008/NĐ-CP dated March 4, 2008 of the Government stipulating the functions, tasks, powers, and organizational structure of the Ministry of Natural Resources and Environment, which has been amended and supplemented by Decree No. 19/2010/NĐ-CP dated March 5, 2010 of the Government and Decree No. 89/2010/NĐ-CP dated August 16, 2010 of the Government;

At the proposal of the General Director of the Environmental Administration, the Head of the Science and Technology Department, and the Head of the Legal Department;

The Minister of Natural Resources and Environment promulgates this Circular stipulating national technical standards for the environment.

Article 1. This Circular promulgates two (02) national technical standards for the environment:

1. QCVN 02:2012/BTNMT - National Technical Standard on Medical Solid Waste Incinerators.

2. QCVN 30:2012/BTNMT - National Technical Standard on Industrial Solid Waste Incinerators.

Article 2. Effectiveness

1. This Circular takes effect from March 1, 2013.

2. QCVN 02:2008/BTNMT on emissions from medical solid waste incinerators and QCVN 30:2010/BTNMT on emissions from industrial solid waste incinerators shall cease to be effective from the date this Circular takes effect.

Article 3. The Minister, Heads of ministerial-level agencies, central-affiliated agencies, Chairpersons of provincial People's Committees, the General Director of the Environmental Administration, Heads of units under the Ministry of Natural Resources and Environment, and related organizations and individuals are responsible for implementing this Circular./.

QCVN 02:2012/BTNMT

 

 

 

 

 

 

 

 

NATIONAL TECHNICAL REGULATION

ON MEDICAL SOLID WASTE INCINERATORS

National Technical Regulation on Solid Health Care Waste Incinerator

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Foreword

QCVN 02:2012/BTNMT was prepared by the drafting team of the Circular promulgating the national technical standard on medical solid waste incinerators and the national technical standard on industrial solid waste incinerators compiled by the Science and Technology Department and the Legal Department, reviewed and issued pursuant to Circular No. 27/2012/TT-BTNMT dated December 28, 2012 of the Minister of Natural Resources and Environment.

 

 

AMENDMENT 1:2025 QCVN 07:2023/BXD

ON MEDICAL SOLID WASTE INCINERATORS

National Technical Regulation on Solid Health Care Waste Incinerator

Chapter 1. GENERAL PROVISIONS

1.1. Scope of Application

This standard sets out technical and environmental requirements for medical solid waste incinerators.

1.2. Applicability

This standard applies to organizations and individuals producing, importing, trading (distributing), using medical solid waste incinerators within the territory of the Socialist Republic of Vietnam; state management agencies for the environment; sampling and analysis units, and related organizations and individuals.

1.3. Definitions

In this regulation, the following terms are understood as follows:

1.3.1. Medical solid waste (hereinafter referred to as MSW) is solid waste generated from healthcare activities, including hazardous and non-hazardous (general) waste.

1.3.2. Medical solid waste incinerator is a system of equipment for treating MSW by combustion, along with an exhaust gas treatment system.

1.3.3. Combustion zone (or combustion chamberincludes the following areas that utilize heat in the MSW incinerator:

a) Primary combustion zone is the area where heat is used to convert waste into gases and solids (ash, dust);

b) Secondary combustion zone is the area where high temperatures are used to burn components of the gas stream converted from the primary combustion zone.

1.3.4. Retention time is the time it takes for the gas stream to flow from the entry point to the exit point of the secondary combustion zone at the specified temperature conditions in Table 1 of this standard.

1.3.5. Exhaust Emissions Exhaust gas

1.3.6. is the mixture of substances emitted into the air through the chimney of the MSW incinerator. Ash

1.3.7. is the solid residue remaining after burning waste in the MSW incinerator. Dust

1.3.8. Capacity is the general term for fly ash and dust produced during the burning of waste, retained during exhaust gas treatment.

1.3.9. Capacity is the processing capacity of the MSW incinerator, calculated as the maximum amount of waste completely burned in one hour (kg/h).

Chapter 2. TECHNICAL PROVISIONS

Licensing authority

is the general term for the agency issuing hazardous waste management permits or the agency confirming the implementation of environmental protection works before putting the MSW incinerator into operation in cases where hazardous waste management permits are not required according to regulations (incinerators only for internal MSW treatment within healthcare facilities).

2.1. Basic technical requirements for medical solid waste incinerators

2.1.1. The MSW incinerator must operate according to a multi-stage combustion principle, with a minimum of two combustion zones (primary and secondary). The calculation of the volume of the combustion zones is based on the capacity and retention time of the MSW incinerator, referring to the provisions in Appendix 1 attached to QCVN 30:2012/BTNMT - National Technical Standard on Industrial Solid Waste Incinerators.

2.1.2. In the MSW incinerator, there must be negative pressure (lower than external pressure) to limit smoke escaping into the environment through the waste feed door.

2.1.3. The chimney of the MSW incinerator must meet the following requirements:

a) The height of the chimney must be calculated appropriately to ensure the quality of surrounding air when discharged into the atmosphere, but must not be less than 20 (twenty) meters above ground level. If there are large obstacles (such as buildings, tree rows, hills...) within a radius of 40 (forty) meters from the base of the chimney, the chimney must be at least 03 (three) meters higher than the highest point of the obstacle;

b) The chimney must have a sampling port for exhaust gas with a diameter or width of at least 10 (ten) centimeters, equipped with a cover to adjust the opening size, accompanied by a safe and convenient operating platform for approaching and sampling. The sampling point must be located between the following two positions:

- Lower end: Above the highest point of the connection between the exhaust gas treatment system and the chimney by a distance equal to seven times the inner diameter of the chimney;

- Upper end: Below the top of the chimney by three meters.

External shell temperature (or thermal insulation layer)

2.1.6. The CTRYT incinerator must have an exhaust gas treatment system with an operating process including the following main stages:

a) Cooling (rapidly reducing the temperature) of the exhaust gases but not using the method of directly mixing outside air into the exhaust gas flow to cool it;

b) Dust removal (dry or wet);

c) Treatment of harmful components in the exhaust gases (such as absorption, adsorption).

Some of the above stages may be carried out simultaneously in one device, or one stage may be performed in more than one device within the exhaust gas treatment system.

2.2. Maximum allowable values for pollutant parameters in the exhaust gases from the CTRYT incinerator

During normal operation, the values of pollutant parameters in the exhaust gases from the CTRYT incinerator when discharged into the environment shall not exceed the values specified in Table 2 below:

Table 2: Maximum allowable values for pollutant parameters in the exhaust gases

Where:

- Column A applies to CTRYT incinerators at centralized CTRYT treatment facilities according to planning (not located within the premises of healthcare facilities);

- Column B applies to CTRYT incinerators installed within the premises of healthcare facilities.

3. PROVISIONS ON OPERATION, EMERGENCY RESPONSE AND SUPERVISION

3.1. Operation of the CTRYT incinerator

3.1.1. Must establish and implement a safe operation procedure for the CTRYT incinerator, paying attention to the following contents:

a) Except in cases where the CTRYT incinerator has a special operating procedure prescribed by the manufacturer and specifically reviewed by the licensing authority, the startup procedure for the CTRYT incinerator must follow the sequence as follows:

- Step 1: Start the exhaust gas treatment system;

- Step 2: Start and dry heat all combustion zones. Only non-hazardous waste types with high calorific value (such as biomass waste) can be loaded to replace and supplement traditional fuel after the primary combustion zone has been heated up to over 300 (three hundred) °C and the secondary combustion zone to over 800 (eight hundred) °C. The types of non-hazardous waste used during this startup phase must be identified and clearly stated in the procedure;

- Step 3: Officially load CTRYT into the CTRYT incinerator. Hazardous CTRYT can only be loaded when the temperatures of the combustion zones reach the corresponding values specified in Table 1 of this Standard.

b) The shutdown procedure for the CTRYT incinerator must be carried out in the following sequence:

- Step 1: Stop loading waste. Continue mixing the remaining waste in the primary combustion zone and supply fuel (if necessary) until the waste is completely burned;

- Step 2: Stop supplying fuel to the primary combustion zone after the waste has been completely burned (no signs of burning remain);

- Step 3: Stop supplying fuel to the secondary combustion zone after there is no smoke in the primary combustion zone and no exhaust gases through the chimney;

- Step 4: Stop the exhaust gas treatment system and end all operations of the CTRYT incinerator when the temperature of the primary combustion zone drops below 300 (three hundred) °C.

3.1.2. Waste before being loaded into the CTRYT incinerator must be controlled to ensure it does not affect the normal operation of the incinerator, avoiding loading waste that cannot be treated by the incinerator.

3.1.3. It is prohibited to burn: radioactive waste; explosive waste; waste containing PVC plastic; wastewater; waste with corrosive properties or containing mercury, lead, cadmium, organic halogen substances exceeding the hazardous waste threshold as stipulated in QCVN 07:2009/BTNMT - National Technical Regulation on Hazardous Waste Thresholds.

3.1.4. A logbook of the CTRYT incinerator's operation must be established, recording the quantity of waste burned, the time of operation, and the name of the operator.

3.2. Management of waste generated from the CTRYT incinerator

3.2.1. Wastewater generated from the operation of the CTRYT incinerator's exhaust gas treatment system (if any) can only be discharged into the environment after treatment to meet the requirements of QCVN 40:2011/BTNMT - National Technical Regulation on Industrial Wastewater.

3.2.2. Ash, dust, sludge, and other solid waste generated from the operation of the CTRYT incinerator must be classified according to the provisions of QCVN 07:2009/BTNMT to have appropriate management measures in accordance with regulations.

3.3. Prevention and emergency response

3.3.1. Must establish and implement a fire prevention and firefighting plan in accordance with regulations on fire prevention and firefighting under the guidance of the competent authority managing fire prevention and firefighting work.

3.3.2. Must establish and implement contingency plans and emergency responses for other incidents in accordance with regulations on medical waste management, hazardous waste management, and related regulations.

3.3.3. In addition to manual shut-off mechanisms, the combustion zones must have automatic shut-off mechanisms when abnormal operation or incidents occur.

3.3.4. The exhaust gas treatment system of the CTRYT incinerator must have a bypass valve to discharge exhaust gases directly into the chimney without passing through the exhaust gas treatment system in case of an incident. The bypass valve must have a manual or automatic control lever at a height convenient for standing personnel, ensuring easy and timely operation immediately upon occurrence of an incident without having to climb onto the incinerator. Loading of waste must be stopped immediately after using the bypass valve. Restarting can only occur after the incident has been fully resolved. The bypass valve must be sealed by the licensing authority to prevent arbitrary use and must be reported within 48 (forty-eight) hours after breaking the seal so that the licensing authority can reseal it.

3.4. Supervision of the CTRYT incinerator

3.4.1. The CTRYT incinerator must be equipped with automatic monitoring equipment to measure and record temperature parameters in the combustion zones and exhaust gas temperature after the exhaust gas treatment system.

3.4.2. Video cameras or direct observation windows must be installed to observe the waste incineration process in the primary combustion zone with a diameter or width of at least 05 (five) cm each side.

3.4.3. Regular environmental monitoring of the CTRYT incinerator must be conducted in accordance with current regulations and the requirements of the licensing authority, but with a frequency of no less than three times per month.

3.4.4. Automatic and continuous monitoring for certain parameters in emissions and sampling monitoring for dioxins/furans shall only be carried out in specific cases as required by the licensing authority.

4. METHODS OF DETERMINATION

4.1. The methods for determining pollution parameters in emissions from industrial waste incinerators shall be implemented according to the following national standards:

- TCVN 5977:2009 - Emission sources - Determination of particulate matter concentration by manual method;

- TCVN 6750:2000 - Emission sources - Determination of sulfur dioxide concentration - Gas chromatography with ionization;

- TCVN 7172:2002 - Emission sources - Determination of nitrogen oxide concentration - Photometric method using naphtyletylenediamine;

- TCVN 7242:2003 - Medical waste incinerators - Method for determining carbon monoxide (CO) concentration in emissions;

- TCVN 7244:2003 - Medical waste incinerators - Method for determining hydrochloric acid (HCl) concentration in emissions;

- TCVN 7557-1:2005 - Medical waste incinerators - Determination of heavy metals in emissions - Part 1: General provisions;

- TCVN 7557-2:2005 - Medical waste incinerators - Determination of heavy metals in emissions - Part 2: Method for determining mercury concentration by cold vapor atomic absorption spectrometry;

- TCVN 7557-3:2005 - Medical waste incinerators - Determination of heavy metals in emissions - Part 3: Method for determining cadmium and lead concentrations by flameless and flame atomic absorption spectrometry;

- TCVN 7556-3:2005 - Medical waste incinerators - Determination of PCDD/PCDF concentration - Part 3: Qualitative and quantitative determination;

4.2. International standards with equivalent or higher accuracy may be accepted for determining the concentration of pollution parameters in emissions from industrial waste incinerators when there are no national standards available.

Chapter 5. ORGANIZATION OF IMPLEMENTATION

5.1. This standard takes effect from March 1, 2013, and replaces QCVN 02:2008/BTNMT - National Technical Regulation on Emissions from Medical Waste Incinerators.

5.2. Organizations and individuals using industrial waste incinerators within the territory of the Socialist Republic of Vietnam must comply fully with all provisions of this standard, except that industrial waste incinerators officially operating before March 1, 2013, may temporarily be exempted from some provisions (except Section 2.2) of this standard until June 30, 2016, if such provisions require upgrading, modification, adjustment, or supplementation regarding design, structure, equipment, and materials compared to the current status.

5.3. During the period without specific standards, emissions from crematoria must comply with the provisions in Column A of Table 2 in Section 2.2 of this standard, and the National Standard TCVN 6560:1999 (6560:2005) - Air Quality - Emissions from Medical Waste Incinerators shall not apply as directed in Section 2 of Part X of Circular No. 02/2009/TT-BYT dated May 26, 2009, issued by the Ministry of Health guiding hygiene in funeral and cremation activities.

5.4. In case the national technical regulations or national standards cited in this standard are revised, supplemented, or replaced, the new version shall be applied.

5.5. The state management agency for the environment is responsible for guiding, inspecting, and supervising the implementation of this standard.

 

 

 

QCVN 30:2012/BTNMT

 

 

 

 

 

 

 

AMENDMENT 1:2025 QCVN 07:2023/BXD

ON INDUSTRIAL WASTE INCINERATORS

NATIONAL TECHNICAL REGULATION ON INDUSTRIAL WASTE INCINERATOR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Foreword

QCVN 30:2012/BTNMT was Drafted by the Circular Issuing National Technical Regulations on Medical Waste Incinerators and National Technical Regulations on Industrial Waste Incinerators, Science and Technology Department, Legal Affairs Department reviewed and promulgated pursuant to Circular No. 27/2012/TT-BTNMT dated December 28, 2012, of the Minister of Natural Resources and Environment.

 

 

 

AMENDMENT 1:2025 QCVN 07:2023/BXD

ON INDUSTRIAL WASTE INCINERATORS

NATIONAL TECHNICAL REGULATION ON INDUSTRIAL WASTE INCINERATOR

Chapter 1. GENERAL PROVISIONS

1.1. Scope of Application

This standard specifies technical and environmental requirements for industrial waste incinerators.

1.2. Applicability

This standard applies to organizations and individuals producing, importing, trading (distributing), and using industrial waste incinerators within the territory of the Socialist Republic of Vietnam; state management agencies for the environment; sample-taking, analysis units, and related organizations and individuals.

1.3. Definitions

In this regulation, the following terms are understood as follows:

1.3.1. Industrial waste (hereinafter referred to as IWT) refers to waste generated from industrial processes, including hazardous and non-hazardous waste (general waste).

1.3.2. Industrial waste incinerator is a system of equipment for treating IWT through combustion accompanied by an exhaust gas treatment system.

1.3.3. Combustion zone (or combustion chamber) includes combustion zones of the industrial waste incinerator, comprising:

a) Primary combustion zone is the area where heat is used to convert waste into gases and solids (ash, dust);

b) Secondary combustion zone is the area where high temperatures are used to burn components of the gas stream converted from the primary combustion zone.

1.3.4. Retention time is the time it takes for the gas stream to flow from the entry point to the exit point of the secondary combustion zone at the specified temperature conditions in Table 1 of this standard.

1.3.5. Exhaust Emissions is a mixture of various material components emitted into the atmosphere from the chimney of the industrial waste incinerator.

1.3.6. is the mixture of substances emitted into the air through the chimney of the MSW incinerator. is the solid residue remaining after the combustion of waste in the industrial waste incinerator.

1.3.7. is the solid residue remaining after burning waste in the MSW incinerator. Dust

1.3.8. Capacity (capacity) is the processing capacity of the industrial waste incinerator, measured by the maximum amount of waste completely combusted in one hour (kg/h).

1.3.9. Capacity is the general term for the agency issuing the waste management permit or the agency confirming the implementation of environmental protection works prior to putting the industrial waste incinerator into operation in cases where a waste management permit is not required (non-hazardous waste incinerators or incinerators solely for internal hazardous waste treatment within the premises of an industrial facility).

Chapter 2. TECHNICAL PROVISIONS

2.1. Basic technical requirements for industrial waste incinerators

2.1.1. The industrial waste incinerator must operate according to a multi-stage combustion principle, with at least two combustion zones (primary and secondary). The volume of the combustion zones is calculated based on the capacity and retention time of the industrial waste incinerator as stipulated in Appendix 1 attached to this standard.

2.1.2. Inside the industrial waste incinerator, negative pressure (lower than external pressure) must be maintained to prevent smoke from escaping into the environment through the waste feed door.

2.1.3. The chimney of the industrial waste incinerator must meet the following requirements:

2.1.2. In the MSW incinerator, there must be negative pressure (lower than external pressure) to limit smoke escaping into the environment through the waste feed door.

2.1.3. The chimney of the MSW incinerator must meet the following requirements:

a) The height of the chimney must be calculated appropriately to ensure the quality of surrounding air when discharged into the atmosphere, but must not be less than 20 (twenty) meters above ground level. If there are large obstacles (such as buildings, tree rows, hills...) within a radius of 40 (forty) meters from the base of the chimney, the chimney must be at least 03 (three) meters higher than the highest point of the obstacle;

b) The chimney must have a sampling port for exhaust gas with a diameter or width of at least 10 (ten) centimeters, equipped with a cover to adjust the opening size, accompanied by a safe and convenient operating platform for approaching and sampling. The sampling point must be located between the following two positions:

2.1.4. During normal operation, basic technical parameters of the industrial waste incinerator must comply with the provisions set forth in Table 1 below:

Table 1. Basic technical parameters of industrial waste incinerators

External shell temperature (or thermal insulation layer)

2.1.6. The industrial waste incinerator must have an exhaust gas treatment system with operational procedures including the following main stages:

a) Cooling (rapidly reducing the temperature) of the exhaust gases but not using the method of directly mixing outside air into the exhaust gas flow to cool it;

b) Dust removal (dry or wet);

c) Treatment of harmful components in the exhaust gases (such as absorption, adsorption).

Some of the above stages may be carried out simultaneously in one device, or one stage may be performed in more than one device within the exhaust gas treatment system.

2.2. Maximum allowable values for pollution parameters in the exhaust gas of industrial waste incinerators

During normal operation, the values of pollution parameters in the exhaust gas of industrial waste incinerators when discharged into the environment shall not exceed the values specified in Table 2 below:

Table 2. Maximum allowable values for pollution parameters in the exhaust gas

Where:

- Column A applies to all industrial waste incinerators until December 31, 2014;

- Column B applies to all industrial waste incinerators starting January 1, 2015.

3. PROVISIONS ON OPERATION, EMERGENCY RESPONSE AND SUPERVISION

3.1. Operation of industrial waste incinerators

3.1.1. Must establish and implement safe operating procedures for industrial waste incinerators, paying attention to the following points:

a) Except for industrial waste incinerators with special operating processes specified by the manufacturer and specifically reviewed by the licensing authority, the startup procedure for industrial waste incinerators must follow the sequence as follows:

- Step 1: Start the exhaust gas treatment system;

- Step 2: Start and dry heat all combustion zones. Only non-hazardous waste types with high calorific value (such as biomass waste) can be loaded to replace and supplement traditional fuel after the primary combustion zone has been heated up to over 300 (three hundred) °C and the secondary combustion zone to over 800 (eight hundred) °C. The types of non-hazardous waste used during this startup phase must be identified and clearly stated in the procedure;

- Step 3: Officially load waste into the industrial waste incinerator. Only non-hazardous waste with low calorific value can be loaded, and hazardous waste can be loaded once the temperature of the combustion zones reaches the corresponding values as specified in Table 1 of this standard.

b) The shutdown procedure for industrial waste incinerators must be carried out in the following sequence:

- Step 1: Stop loading waste. Continue mixing the remaining waste in the primary combustion zone and supply fuel (if necessary) until the waste is completely burned;

- Step 2: Stop supplying fuel to the primary combustion zone after the waste has been completely burned (no signs of burning remain);

- Step 3: Stop supplying fuel to the secondary combustion zone after there is no smoke in the primary combustion zone and no exhaust gases through the chimney;

- Step 4: Stop the exhaust gas treatment system and end all operations of the CTRYT incinerator when the temperature of the primary combustion zone drops below 300 (three hundred) °C.

3.1.2. Waste before being loaded into the industrial waste incinerator must be controlled to ensure it does not affect the normal operation of the incinerator and avoid loading waste that cannot be treated by the incinerator. Adequate amounts of waste must be prepared to ensure each operation of the industrial waste incinerator lasts at least 24 (twenty-four) continuous hours. Some requirements for waste before loading into the incinerator are detailed in Appendix 2 attached to this standard.

3.1.3. It is prohibited to incinerate: radioactive waste; explosive waste; corrosive waste or waste containing mercury, lead, or cadmium exceeding the hazardous waste threshold as prescribed in QCVN 07:2009/BTNMT. Organic halogen-containing waste exceeding the hazardous waste threshold as prescribed in QCVN 07:2009/BTNMT can only be incinerated in industrial waste incinerators licensed by the General Department of Environment - Ministry of Natural Resources and Environment for hazardous waste management.

3.1.4. Industrial waste incinerators with a primary combustion chamber volume greater than 20 (twenty) cubic meters³ or the distance from the farthest point of the primary combustion chamber to the waste feed port exceeds 2 (two) meters must be equipped with mechanical devices for waste feeding and mixing in the primary combustion chamber (except in cases where the technology does not require mixing such as anaerobic pyrolysis).

3.1.5. Technical measures must be taken to remove ash and slag from the primary combustion chamber during operation to ensure continuous operation of the industrial waste incinerator without interruption.

3.1.6. Operating logs for industrial waste incinerators must be kept, recording the quantity, type of waste incinerated, time of operation, and operator's name.

3.2. Management of waste generated from industrial waste incinerators

3.2.1. Wastewater generated from the operation of the exhaust gas treatment system of industrial waste incinerators (if applicable) can only be discharged into the environment after being treated to meet QCVN 40:2011/BTNMT - National Technical Regulation on Industrial Wastewater.

3.2.2. Ash, dust, sludge, and other solid wastes generated from the operation of industrial waste incinerators must be classified according to QCVN 07:2009/BTNMT regulations to ensure appropriate management measures are taken.

3.3. Prevention and emergency response

3.3.1. Must establish and implement a fire prevention and firefighting plan in accordance with regulations on fire prevention and firefighting under the guidance of the competent authority managing fire prevention and firefighting work.

3.3.2. Must develop and implement emergency response plans for other incidents as prescribed (such as hazardous waste management regulations in the case of incinerating hazardous waste).

3.3.3. In addition to manual shut-off mechanisms, the combustion zones must have automatic shut-off mechanisms when abnormal operation or incidents occur.

3.3.4. Combustion zones must have technical measures to reduce temperature promptly if there is a sudden, abnormal increase in temperature or incident.

3.3.5. Industrial waste incinerators must have bypass valves to directly discharge exhaust gases through the chimney without passing through the exhaust gas treatment system in case of incidents. Bypass valves must have manual or automatic controls at a height convenient for standing personnel, ensuring quick and easy operation in emergencies without having to climb onto the incinerator. Waste loading must be stopped immediately after using the bypass valve. Restarting is only allowed after the incident has been fully resolved. Bypass valves must be sealed by the licensing authority to prevent unauthorized use and must be reported within 48 (forty-eight) hours after breaking the seal so that the licensing authority can reseal it.

3.4. Monitoring of industrial waste incinerators

3.4.1. Industrial waste incinerators must be equipped with automatic monitoring equipment to continuously measure and record temperature parameters in the combustion zones and exhaust gas temperature after the exhaust gas treatment system.

3.4.2. Video cameras or direct observation windows must be installed to monitor the waste incineration process in the primary combustion chamber with a minimum diameter or width of 05 (five) centimeters.

3.4.3. Regular environmental monitoring of industrial waste incinerators must be conducted according to current regulations and requirements of the licensing authority, but with a frequency of no less than three times per month.

3.4.4. Automatic and continuous monitoring for certain parameters in emissions and sampling for dioxin/furan supervision shall only be carried out when incinerating waste containing organic halogen components exceeding the hazardous waste threshold as specified in QCVN 07:2009/BTNMT or other special cases as specifically required by the licensing authority.

4. METHODS OF DETERMINATION

4.1. The methods for determining pollution parameters in emissions from medical waste incineration furnaces shall be implemented according to the following national standards:

- TCVN 5977:2009 - Emission sources - Determination of particulate matter concentration by manual method;

- TCVN 6750:2000 - Emission sources - Determination of sulfur dioxide concentration - Gas chromatography with ionization;

- TCVN 7172:2002 - Emission sources - Determination of nitrogen oxide concentration - Photometric method using naphtyletylenediamine;

- TCVN 7242:2003 - Medical waste incinerators - Method for determining carbon monoxide (CO) concentration in emissions;

- TCVN 7244:2003 - Medical waste incinerators - Method for determining hydrochloric acid (HCl) concentration in emissions;

- TCVN 7557-1:2005 - Medical waste incinerators - Determination of heavy metals in emissions - Part 1: General provisions;

- TCVN 7557-2:2005 - Medical waste incinerators - Determination of heavy metals in emissions - Part 2: Method for determining mercury concentration by cold vapor atomic absorption spectrometry;

- TCVN 7557-3:2005 - Medical Waste Incineration Furnaces - Determination of Heavy Metals in Emissions - Part 3: Method for Determining Cadmium and Lead Concentrations Using Flame and Non-flame Atomic Absorption Spectroscopy;

- TCVN 7556-3:2005 - Medical waste incinerators - Determination of PCDD/PCDF concentration - Part 3: Qualitative and quantitative determination;

4.2. International standards with equivalent or higher accuracy are accepted for determining the concentrations of pollution parameters in emissions from industrial waste incineration furnaces when there are no national standards available.

Chapter 5. ORGANIZATION OF IMPLEMENTATION

5.1. This standard takes effect from March 1, 2013, and replaces QCVN 30:2010/BTNMT - National Technical Regulation on Emissions from Industrial Waste Incineration Furnaces.

5.2. Organizations and individuals using industrial waste incineration furnaces within the territory of the Socialist Republic of Vietnam must comply with all provisions of this standard except for the following cases:

5.2.1. Industrial waste incineration furnaces that were officially operational before March 1, 2013 may temporarily be exempted from applying some provisions (except Section 2.2) of this standard until December 31, 2014 if such provisions require upgrading, modification, adjustment, or supplementation to the design, structure, equipment, and materials compared to the current status.

5.2.2. During the period without specific standards, new incinerators with advanced technology such as plasma furnaces may be exempted from applying some provisions (except Section 2.2) of this standard if they are reviewed and approved during the technical assessment process, environmental impact report approval, and hazardous waste management permit issuance as prescribed.

5.2.3. In necessary cases, the competent licensing authority has the final decision on whether to allow or not allow exemption from applying some provisions (except Section 2.2) of this standard.

5.3. Industrial waste incineration furnaces complying with the provisions of this standard can be used to incinerate non-industrial waste such as medical solid waste without having to comply with additional regulations for non-industrial waste incineration furnaces (if applicable) such as QCVN 02:2012/BTNMT - National Technical Regulation on Medical Solid Waste Incineration Furnaces.

5.4. In case the national technical regulations or national standards cited in this standard are revised, supplemented, or replaced, the new version shall be applied.

5.5. The state management agency for the environment is responsible for guiding, inspecting, and supervising the implementation of this standard.

ANNEX 1

CALCULATION METHODS FOR SOME TECHNICAL PARAMETERS OF INDUSTRIAL WASTE INCINERATION FURNACES

(Attached to QCVN 30:2012/BTNMT - National Technical Regulation on Industrial Waste Incineration Furnaces)

1. Calculation method for the volume of the primary combustion chamber

The volume of the primary combustion chamber is calculated using the following formulas:

Or:

0,04 . C_km/h ³ V_sc ³ 0,014 . C_km/h

Where:

- V_sc: Volume of the primary combustion chamber (m³);

- C_km/h: Design capacity of the incinerator (kg/h);

- Article 24: Lower calorific value of the waste (default range 2,800 - 4,000 kcal/kg);

- BB 1.6: Heat density volume of the combustion chamber (default range 100,000 - 200,000 kcal/m³h).

Example: For an incinerator with a design capacity of 100 kg/h, the corresponding volume of the primary combustion chamber should be selected within the range of 1.4 - 4 m³ depending on the manufacturer.

2. Calculation method for the volume of the secondary combustion chamber

The volume of the secondary combustion chamber is calculated using the following formula:

V_{The test result is the arithmetic mean value of two parallel determinations on the same test sample when their difference does not exceed 1% of the mean value. Report the result to one decimal place.} = t_km/h . L

Where:

- V_{The test result is the arithmetic mean value of two parallel determinations on the same test sample when their difference does not exceed 1% of the mean value. Report the result to one decimal place.}: Volume of the secondary combustion chamber (m³);

- organize credit institutions, foreign bank branches are responsible for organizing the implementation of this Circular._km/h: Designed retention time (³ 2 s);

- nh cơ: Flow rate of the gas stream in the secondary combustion chamber (m³/s).

3. Calculation method for the actual capacity of the incinerator

The actual capacity of an industrial waste incinerator may differ from its design capacity and varies depending on the characteristics of the waste loaded into the incinerator. The actual capacity is calculated using the following methods:

3.1. Calculation formula when the calorific value of the waste is known

Where:

- C: Actual capacity of the incinerator (kg/h);

- V_sc: Volume of the primary combustion chamber (m³);

- BB 1.6: Heat density volume of the combustion chamber (kcal/m³h);

- Article 24: Lower calorific value of each type of waste in reality (kcal/kg).

3.2. Calculation based on the actual operation of the incinerator

Monitor and adjust the load of waste fed into the incinerator until it operates stably, complies with the parameters specified in Tables 1 and 2 of this standard, and the waste is completely incinerated within a certain period sufficient to ensure reliable results (for example, 24 hours).

4. Calculation method for the actual retention time

In the absence of an accurate measurement method such as measuring the travel time of indicator material (particles) in the secondary combustion chamber, the actual retention time of the incinerator is calculated using the following formula:

t = V_{The test result is the arithmetic mean value of two parallel determinations on the same test sample when their difference does not exceed 1% of the mean value. Report the result to one decimal place.} / L

Where:

- organize credit institutions, foreign bank branches are responsible for organizing the implementation of this Circular.: Actual retention time (s).

- V_{The test result is the arithmetic mean value of two parallel determinations on the same test sample when their difference does not exceed 1% of the mean value. Report the result to one decimal place.}: Actual volume of the secondary combustion chamber (m³).

- nh cơ: Flow rate of the gas stream in the secondary combustion chamber (m³/s). The flow rate L can be extrapolated based on the flue gas flow measured at the sampling point or based on the suction fan flow after the secondary combustion chamber.

 

 

 

ANNEX 2

REQUIREMENTS FOR WASTE BEFORE LOADING INTO THE INCINERATOR

(Attached to QCVN 30:2012/BTNMT - National Technical Regulation on Industrial Waste Incineration Furnaces

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Except in special cases, waste must be prepared or pre-treated before being loaded into the industrial waste incinerator according to the following requirements:

1. Solid waste must have a size suitable for rapid incineration, especially solid block waste must ensure a minimum thickness of no more than 10 (ten) cm at any one dimension.

2. Hazardous waste must be mixed with each other or with non-hazardous waste or appropriate additives to create a stable waste stream, except where mixing causes dangerous chemical reactions or creates difficult-to-treat new components.

3. Sticky waste with low porosity or difficult to ignite must be mixed with appropriate waste or additives (such as sawdust, rice husks...) to reduce stickiness, increase porosity, and improve ignitability.

4. High moisture waste such as sludge must be reduced in moisture or mixed with dry waste or additives.

5. Liquid waste can be directly injected into the combustion zones through dedicated spray nozzles or mixed with dry solid waste or additives and fed into the primary combustion zone.

6. Waste with low calorific value shall be mixed or burned together with waste or additives with higher calorific value to ensure that the calorific value (low) falls within the range of 2,800 - 4,000 kcal/kg, thereby ensuring fuel efficiency as well as the normal operation and capacity of the CTCN incinerator.