DB32/ 4041-2021 English PDF (DB324041-2021)
DB32/ 4041-2021 English PDF (DB324041-2021)
DB32/ 4041-2021: Integrated emission standard of air pollutants
LOCAL STANDARD OF JIANGSU PROVINCE OF CHINA
CCS Z 60
Integrated emission standard of air pollutants
ISSUED ON: MAY 14, 2021
IMPLEMENTED ON: AUGUST 01, 2021
Issued by: Department of Ecological Environment of Jiangsu Province;
Market Supervision Administration of Jiangsu Province.
Table of Contents
Foreword ... 3
Introduction ... 4
1 Scope ... 5
2 Normative references ... 5
3 Terms and definitions ... 11
4 Control requirements for pollutant emission ... 13
5 Pollutant monitoring requirements ... 20
6 Implementation and supervision ... 29
Integrated emission standard of air pollutants
This document specifies the management requirements for emission control, monitoring, supervision of air pollutants, from fixed sources in Jiangsu Province. This document is applicable to the management of air pollutant emissions, from existing fixed pollution sources in Jiangsu Province, as well as the
environmental impact assessment, the environmental protection engineering design, the issuance of pollution permits, the management of air pollutant emissions after putting into production of construction projects.
This document is the basic requirement for air pollutant emission control. When the requirements of the environmental impact assessment document or
pollutant emission permit are stricter than this document, it shall be
implemented in accordance with the approved environmental impact
assessment document or pollutant emission permit.
If the country or the province has issued air pollutant emission standards for industries, general processes or equipment, or malodorous pollutants emission standards, it shall implement the requirements of the corresponding national or local emission standards.
After the implementation of this document, the air pollutant emission standards, which are issued by the country and this province, will be implemented in accordance with their scope of application. This document will no longer be implemented.
2 Normative references
The contents of the following documents constitute the indispensable clauses of this document through normative references in the text. Among them, for dated reference documents, only the version corresponding to that date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document.
GB/T 4754-2017 Industrial classification for national economic activities GB 9801 Air quality - Determination of carbon monoxide - Non-dispersive infrared spectrometry
HJ 1006 Stationary source emission - Determination of volatile halogenated hydrocarbons - Bags sampling-gas chromatography
HJ 1043 Ambient air - Automatic determination of nitrogen oxides -
HJ 1044 Ambient air - Automatic determination of sulfur dioxide - Ultraviolet fluorescence method
HJ 1079 Stationary source emission - Determination of chlorobenzenes -
HJ 1131 Stationary source emission - Determination of sulphur dioxide - Portable ultraviolet absorption method
HJ 1132 Stationary source emission - Determination of nitrogen oxides - Portable ultraviolet absorption method
HJ 1133 Ambient air and waste gas - Determination of arsenic, selenium, bismuth, antimony in ambient particle matter - Atomic fluorescence
HJ 1153 Stationary source emission - Determination of aldehyde and ketone compounds - Solution absorption - High performance liquid chromatography HJ 1154 Ambient air - Determination of aldehyde and ketone compounds -
Solution absorption - High performance liquid chromatography
3 Terms and definitions
The following terms and definitions apply to this document.
The state when the temperature is 273.15K AND the pressure is 101.325
kPa. The standard values, which are specified in this document, are based on dry gas, under standard conditions.
Maximum allowable emission concentration
The limit value, which shall not exceed, for any 1h average concentration of atmospheric pollutants, in the stack.
Maximum allowable emission rate
The limit value, which shall not exceed, for the emission mass per any 1h of atmospheric pollutants, in the stack.
New pollution source
The newly-built, re-built, expanded pollution sources, whose environmental impact assessment document has passed the approval, from the date of
implementation of this document.
Existing pollution source
Pollution sources that have been completed and put into production, OR
whose environmental impact assessment documents have been approved,
before the implementation of this document.
The height FROM the ground plane, where the stack (or its main building structure) is located, TO the stack's outlet gauge.
Volatile organic compounds
Organic compounds, that participate in atmospheric photochemical
reactions, OR organic compounds determined according to relevant
regulations, which are referred to as VOCs. When characterizing the overall emission of VOCs, this document uses non-methane total hydrocarbons
(expressed in NMHC), as the pollutant control item.
The irregular discharge of air pollutants, without passing through the stack, including the escape from open workplaces, as well as the emission through gaps, vents, open doors and windows, similar openings (holes), etc.
[Source: GB 37822-2019, 3.4]
Materials, which have a mass percentage of VOCs greater than or equal to 10%, as well as organic polymer materials.
[Source: GB 37822-2019, 3.7]
The state or operating methods, where the pollutant does not come into
contact with the ambient air, OR is isolated from the ambient air, through sealing materials and enclosed equipment.
[Source: GB 37822-2019, 3.5]
The legal boundary of the unit. If it is difficult to determine the legal boundary, it refers to the actual land occupation boundary of the unit.
Stationary internal combustion engines
A reciprocating motion machine, which is used in distributed energy supply systems, such as combined supply of cooling, heating, power, as well as combined production of heat and power. It injects fuel and air into one or more cylinders, to perform work; pushes the piston connecting rod and
crankshaft; drives the generator to generate electricity.
Ship manufacturing industry
Manufacturing of ships and related devices, which are specified in GB/T 4754-2017 (C373).
4 Control requirements for pollutant emission
4.1 Control requirements for organized emission
4.1.1 New pollution sources shall implement the requirements of Table 1, from 4.1.4 The height of the stack, that discharges phosgene, hydrogen cyanide, chlorine, is not less than 25m. The height of other stacks is not less than 15m (except for safety considerations or special process requirements). The specific height and the relative height relation with surrounding buildings shall be determined, according to the environmental impact assessment document.
When the stack of a newly-built pollution source must be less than 15m, the maximum allowable emission rate shall be 50% of the emission rate limit, which is listed in Table 1.
4.1.5 When there are multiple stacks, that discharge the same pollutant, inside the pollutant discharge unit, if the distance between the two stacks is less than the sum of their geometric heights, they shall be combined as one equivalent stack. If there are more than three short-distance stacks, meanwhile all discharge the same pollutant, it shall use the previous two equivalent stacks, to obtain the equivalent value, in sequence with the third stack and the fourth stack. The pollutant emission rate of equivalent stack is calculated, according to formula (1):
Q - Pollutant emission rate of equivalent stack, kg/h;
Q1, Q2 - The pollutant emission rate of stack 1 and stack 2, kg/h.
4.1.6 When the exhaust gases, which follow different emission control
requirements, are emitted by combined stacks, it shall be monitored before the exhaust gas is mixed. Meanwhile, it shall implement the corresponding
emission control requirements. If the selected monitoring position can only monitor the exhaust gas after mixing, it shall be implemented in accordance with the most stringent requirements, in the various emission control
4.1.7 The production process equipment, waste gas collection system, waste gas treatment facilities shall operate simultaneously. When the exhaust gas collection system or exhaust gas treatment facility fails or is overhauled, the corresponding production process equipment shall be shut down, which can only be put into use together, after the overhaul is completed. If the production process equipment cannot be shut down OR cannot be shut down in time, due to safety and other factors, it shall provide emergency waste gas treatment facilities OR take other alternative measures.
4.2 Control requirements for fugitive emission
4.2.1 From the date of implementation of the standard, the fugitive emission limit of VOCs, in the newly-built pollution source and the existing pollution a) Powdered materials shall be stored in closed silos or closed buildings; b) Granular, massive and other dust-prone materials are stored in storage warehouses, sheds, or in closed silos. Storages and sheds shall have
walls (or enclosures) on at least three sides and roofs; the open side shall avoid the upwind direction, that prevails throughout the year;
c) When storing granular, massive and other dust-prone materials in the open air, the storage area shall be enclosed by wind walls, wind and dust suppression nets, etc. (except entrances and exits); the height of the
enclosure shall not be lower than 1.1 times the height of the stockpiled materials. Meanwhile, take control measures such as water spraying,
covering with dust-proof cloth (net) or spraying chemical stabilizers;
d) For materials that are easy to emit dust, such as granular and block materials, which are stored in the open air temporarily, they shall be
covered tightly with dust-proof cloth and dust-proof net.
4.2.6 It shall adopt one of the following dust control methods, for the transfer and transportation of dust-prone materials, within the factory:
a) Adopt a closed conveying system;
b) Material transfer and transportation in enclosed buildings;
c) Take control measures such as local gas collection and treatment, water spraying and humidification, at the feeding point, blanking point,
connection point, other dust-prone locations.
4.2.7 The material processing and handling process shall meet the following requirements:
a) For the process links (such as crushing, grinding, sieving, mixing,
polishing, cutting, feeding, discharging (slag), packaging, etc.), that easily emit dust, during material processing and treatment, they shall adopt
airtight equipment, OR be carried out in an airtight space. If it cannot be airtight, it shall adopt the control measures, such as local gas collection and treatment, water spraying and humidification;
b) Closed production process equipment, waste gas collection system, dust removal facilities, etc. shall be well sealed; no dust will escape.
4.2.8 For the materials handling, storage, transportation, processing and other operations, which are carried out in enclosed buildings, except for personnel, vehicles and equipment access, as well as stacks and vents which are
established by law, the doors, windows and other openings (holes) shall always be kept closed.
5.2.2 The monitoring of atmospheric pollutants, in the stack, shall be carried out in accordance with the requirements of GB/T 16157, HJ/T 373, HJ/T 397, HJ 732.
5.3 Plant area monitoring
5.3.1 When monitoring the fugitive emission of VOCs in the plant area, the monitoring shall be carried out, at a position 1.5m and above from the ground, at a distance of 1m outside the discharge port, such as doors, windows, vents, other openings (holes) of the plant. If the plant is incomplete (if there is a roof and no walls), the monitoring shall be carried out, at a location 1.5m and above from the ground, at a distance 1m in the downwind direction of the operating post.
5.3.2 The monitoring of any 1h average concentration of NMHC, in the plant area, shall adopt the method, which is specified in HJ 604. The average value shall be obtained by sampling continuously for 1h, OR 3 ~ 4 samples shall be collected at equal time intervals, within 1h, to calculate the average value. The monitoring of any one-time concentration value of NMHC, in the plant area, shall be carried out, using the method specified in HJ 604 OR in accordance with relevant requirements, such as portable monitoring technical specifications. 5.4 Monitoring at unit boundary
5.4.1 The monitoring of air pollutants, at the unit boundary, shall be
implemented, in accordance with the requirements of HJ/T 55.
5.4.2 The monitoring of air pollutants, at the unit boundary, is generally carried out by sampling for 1h continuously, to obtain the average value. If the concentration is relatively lower, the sampling time can be appropriately extended. If the analytical method is sensitive AND only needs to be collected in a short time, it shall take 3 ~ 4 samples within 1h, at equal time intervals, to calculate the average value.
5.5 Analysis and determination methods
5.5.1 The method standards, which are listed in Table 4, are used to determine the concentration of air pollutants.