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GB 18484-2001 English PDF (GB18484-2001)

GB 18484-2001 English PDF (GB18484-2001)

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GB 18484-2001: Pollution control standard for hazardous wastes incineration

This standard, from the aspect of the need to prevention and control of the environmental pollution in the disposal process of hazardous wastes, specifies the principles for the site selection of the hazardous waste incineration facilities, the basic technical performance indicators of incineration, the maximum allowable emission limit of the atmospheric pollutants from incineration, the principle for the disposal of the incineration residues, the corresponding environmental monitoring, etc.
GB 18484-2001
NATIONAL STANDARD OF THE
PEOPLE REPUBLIC OF CHINA
ICS 13.030.01
Z 70
Replacing GWKB 2-1999
Pollution control standard for
hazardous waste incineration
ISSUED ON: NOVEMBER 12, 2001
IMPLEMENTED ON: JANUARY 01, 2002
Issued by: State Environmental Protection Administration;
General Administration of Quality Supervision, Inspection and
Quarantine of PRC.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Terms ... 5
4 Technical requirements ... 7
5 Control limits of pollutants (items) ... 9
6 Supervision and monitoring ... 10
7 Implementation of standard ... 11
Pollution control standard for
hazardous waste incineration
1 Scope
This standard, from the aspect of the need to prevention and control of the environmental pollution in the disposal process of hazardous wastes, specifies the principles for the site selection of the hazardous waste incineration facilities, the basic technical performance indicators of incineration, the maximum allowable emission limit of the atmospheric pollutants from incineration, the principle for the disposal of the incineration residues, the corresponding environmental monitoring, etc.
This standard is applicable to the design, environment impact evaluation, as- built acceptance, the pollution control and management in the operation process of the hazardous waste incineration facilities, except for the explosive and radioactive wastes.
2 Normative references
The clauses as contained in the following standards become the clauses of this standard through reference in this standard, which have the same effect as this standard.
GHZB 1-1999 Environmental quality standard for surface water
GB 3095-1996 Ambient air quality standard
GB/T 16157-1996 The determination of particulates and sampling methods
of gaseous pollutants emitted from exhaust gas of stationary source
GB 15562.2-1995 Graphical signs for environmental protection solid waste storage (disposal) site
GB 8978-1996 Integrated wastewater discharge standard
GB 12349-90 Method of measuring noise at boundary of industrial
enterprises
HJ/T 20-1998 Technical specifications on sampling and sample preparation from industry solid waste
3.7 Smoke retention time
Refers to the retention time of the smoke as generated by combustion from the last air injection port or burner?€?s outlet to the heat transfer surface (such as the heat exchanger of waste heat boiler) or of the smoke between cold-air injection ports of the flue.
3.8 Incinerator?€?s temperature
Refers to the temperature at the center of the outlet of the incinerator?€?s combustion chamber.
3.9 Combustion efficiency (CE)
Refers to the percentage of the concentration of carbon dioxide in the exhaust gas of the flue to the sum of the concentration of carbon dioxide and carbon monoxide. It is expressed by the following formula:
Where:
[CO2] and [CO] - The concentrations of CO2 and CO in the exhaust after
combustion, respectively.
3.10 Destructive removal efficiency (DRE)
Refers to the percentage of reduction of an organic substance after incineration. It is expressed by the following formula:
Where:
Wi - The weight of an organic substance in the incinerated substance;
W0 - The sum of the weight of the organic matter, as corresponding to Wi, in the flue gas and incineration residue.
3.11 Dioxins
A general term for polychlorinated dibenzo-p-dioxin and polychlorinated dibenzofuran.
3.12 Dioxin toxicity equivalent (TEQ)
The dioxin?€?s toxicity equivalent factor (TEF) is the ratio of the affinity of dioxin- Note:
1) In the test calculation process, it uses the 11% O2 (dry gas) as a conversion basis. The conversion formula is:
Where:
c - The converted concentration of the measured pollutants under standard state (mg/m3);
O2 - The concentration of oxygen in the exhaust gas (%);
Cs - The concentration of the measured pollutants under standard state (mg/m3). 2) It refers to the total amount of arsenic and nickel.
3) It refers to the total amount of chromium, tin, antimony, copper and manganese. 6 Supervision and monitoring
6.1 Monitoring of exhaust gas
6.1.1 The number of sampling points and the location of sampling points for monitoring the smoke or gaseous pollutants in the exhaust pipe of the
incinerator shall be implemented according to GB/T 16157.
6.1.2 After the incineration facility is operated for 1 h under normal conditions, start collecting the gas sample at a frequency of 1 time/h; each sampling time shall be not less than 45 min; continuously take sample for three times; make determination respectively. Use the average value as the determination value. 6.1.3 Exhaust gas from incineration facilities shall be implemented in
accordance with the pollution source monitoring and analysis method (see Table 4).
Table 4 -- Analytical methods for emission gases from incineration
facilities
No. Pollutant Analysis method Source of methods
1 Smoke?€?s blackness Ringelmann smoke method GB/T 5468-91
2 Smoke dust Gravimetric method GB/T 16157-1996
3 Carbon monoxide (CO) Non-dispersive infrared absorption method HJ/T 44-1999 4 Sulfur dioxide (SO2) Formaldehyde absorption pararosaniline spectrophotometry 1)

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