DB32/ 4041-2021 PDF in English
DB32/ 4041-2021 (DB32/4041-2021, DB32 4041-2021, DB324041-2021)
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Integrated emission standard of air pollutants
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DB32/ 4041-2021: PDF in English (DB32 4041-2021) DB32/ 4041-2021
DB32
LOCAL STANDARD OF JIANGSU PROVINCE OF CHINA
ICS 13.040.40
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
1 Scope
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 -
Chemiluminescence method
HJ 1044 Ambient air - Automatic determination of sulfur dioxide - Ultraviolet
fluorescence method
HJ 1079 Stationary source emission - Determination of chlorobenzenes -
Gas chromatography
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
spectrometry
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.
3.1
Standard condition
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.
3.2
Maximum allowable emission concentration
The limit value, which shall not exceed, for any 1h average concentration of
atmospheric pollutants, in the stack.
3.3
Maximum allowable emission rate
The limit value, which shall not exceed, for the emission mass per any 1h of
atmospheric pollutants, in the stack.
3.4
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.
3.5
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.
3.6
Stack height
The height FROM the ground plane, where the stack (or its main building
structure) is located, TO the stack's outlet gauge.
3.7
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.
3.8
Fugitive emission
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]
3.9
VOCs-containing materials
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]
3.10
Closed/close
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]
3.11
Unit boundary
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.
3.12
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.
3.13
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):
Where:
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
requirements.
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.
......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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