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| Waste incineration 新標 July 1st since the implementation of the most stringent |
| Edited：HuanChuang technology Date：2014-7-3 15:45:19 |
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Again amended after 10 years enforcement, garbage incineration usher in "history's most severe" new gb. The Ministry of environmental protection and the State Quality Inspection Administration recently jointly issued the "pollution control standard for hazardous wastes incineration" (GB18485-2014) (hereinafter referred to as the "new standard"), and from today onwards implemented in stages.
Much attention is paid to the new standards, to further improve the pollution control requirements, which the public is most concerned about dioxin control limit, adopt the most stringent 0.1ngTEQ/m3, consistent with EU standards, than the current standard receive strict 10 times. The new standard of heavy metals and other limits than most of current standards and strict 30%.
In July 1st, the new garbage incineration furnace limit value of pollutant concentration required to implement the new standards, and in 2016, the existing domestic garbage incinerator will also be the implementation of the new standard limit. Southern Daily reporter from the Ministry of environmental protection department of Guangdong Province and Southern China ring city garbage disposal industry association was informed that, at present, Guangdong Province plans to build life garbage incineration projects are all under the new standard design requirements, and the existing 22 garbage incineration project completed before 2008, only individual projects need to transform and are in the transformation, are expected to complete the time according to the new standard.
Guangdong Province city garbage disposal industry association secretary general Qiu Jiantao said, according to the "Guangdong Province living garbage harmless treatment facilities construction" Twelfth Five Year "plan", "Twelfth Five Year Plan" period of the planning and construction of 36 waste incineration power generation projects. Since 2009, Guangdong Province only 7 new garbage incineration project. "This shows that our province in waste incineration site, pre demonstration and public participation process more scientific and cautious, on the other hand, also urged the public to the correct understanding of waste incineration, scientific response to the garbage problem."
implementation of the new standard of dioxin emission reduction of nine to
China's first "pollution of MSW Incineration Control Standards" released in 2000, 2001 the first revision, the second revision. "The current standard has been unable to fully meet the requirements of environmental protection." Release of the new standards, environmental protection department of the relevant responsible person said, the current standard of dioxin pollution control requirements loose, do not match with the existing level of technology and environmental protection requirements. In addition, the current standard is used in the supervisory monitoring means, difficult real-time monitoring on the incineration plant operating conditions and flue gas emission.
In the new standard, particulate matter, heavy metal (Hg, CD, Tl, Pb), hydrogen chloride, sulfur dioxide, nitrogen oxides and dioxin and other pollutants emission limits were tightened sharply. For example, the new standards require, particulate matter from the current 80mg/Nm3 tightened to 20mg/Nm3 (daily mean values), mercury from the current 0.2mg/Nm3 tightened to 0.05mg/Nm3, dioxins from the current 1ngTEQ/m3 tightened to 0.1ngTEQ/m3, in line with EU standards.
"New standard limit value than most of current standards and strict 30%, which can greatly reduce the emissions of pollutants. Through the implementation of the new standard, the nitrogen oxides from MSW incineration can reduce emissions 25%, sulfur dioxide emission reduction of 62%, dioxin emission reduction of 90%." The environmental protection department related person in charge pointed out.
In addition, the new standard will be carbon monoxide concentration as a process control index, in order to control the conditions for the formation of dioxins. In order to make the standard has the largest feasibility and operability, encourage enterprises to the integrity of the law, the new standard reference to the international practice, adopting "hours mean" and "average value" combination of pollution control limits, and set the time interval control standards. "The standards for the discharge of pollutants in China for the first time, pollution control to the end of process control and risk control transformation made beneficial exploration." Said Wang Qi of director of Institute of Solid Waste Research Academy of Environmental Science Chinese media interview.
factory inspection data of publicity and accept the supervision of the public
Live Jianbu once the investigation the operation of incinerators, results show that plant dioxin concentrations far below the current national standard 90% garbage incineration, or have been in line with EU standards. So, how to Guangdong, emission control level of the existing project?
The author to Guangdong Province city garbage disposal industry association and the environmental protection department of Southern China Institute of Environmental Sciences expert was informed that, in accordance with the number of factories, Guangdong has built 22 garbage incineration project (the same enterprises to invest in different plant distinguished count), Shenzhen 7, Dongguan 4, Guangzhou 2, Zhongshan 3 Shunde, Shantou, Nanhai, Huizhou, Zhuhai, Foshan, Maoming 1. , built before 2008 only 4 projects need to adapt to the new standard transformation. "This is because in 2008 the environmental protection department has issued a 82 article, the dioxin emission limits tighten up to 0.1ngTEQ/m3, although not in the form of standards requirements, but the beginning of 2009 completed projects in accordance with the files." Southern China Department of environmental protection deputy director of the division of the ring, environmental health research center Ren Mingzhong told the author. The new standards promulgated and implemented, the control will actually pollutant index officially clear down, to urge enterprises in accordance with the new standards compliance.
In addition to control dioxin emissions, environmental protection department of the relevant responsible person said, the implementation of the new standards on the need to increase DeNOx facilities construction costs and monitoring costs. Denitration equipment construction cost for each production line is 3000000 yuan, 6000000 yuan, operating cost is equivalent to nearly 10 yuan per ton of garbage increased.
"In fact, increase the facility is only one aspect of the hardware investment, enterprises to adapt to the new standard is more need software investment." Environmental Protection Department of Southern China Institute of Environmental Sciences of environmental emergency doctor Seaview center technology and risk management, the cost management, especially the talent cultivation condition adjustment and dynamic control and the introduction of enterprises also need to increase the number of inputs.
In addition to the specific control of pollutant emissions, in order to strengthen supervision and make the public more assured of incineration facilities, the new standard increased the running conditions and flue gas online monitoring requirements -- facilities, flue gas purification system should be installed on-line monitoring equipment, may at any time to detect and record temperature operating conditions, as well as a variety of pollutants in the flue gas. Emission data; and set up publicity card in the factory, to show the data, accept public supervision.
Hot clear
1. new standard in our country is still better than foreign standard loose?
Response : different means cannot be directly compared
Some people have compared to the standard in some developed areas of the new standards in China and the EU limit, think that the new standard in our country is still relatively loose.
In this regard, the sea said, the dioxin limit value, the new standard for the world's most stringent 0.1ngTEQ/m3, consistent with EU standards. In the rest part of indicators, limit looks better than foreign standards are high, but not as simple comparison. Because the EU standards have a "exemption", that is in a period of time, allow enterprises appear several times exceed the standard of our country, but the standard is not the exemption period, all the monitoring requirements standard.
In addition, some countries such as Japan is the implementation of the hierarchical control, by contrast, the new standard of our country is more strict. By our standards are hours mean and daily mean, while the EU standard for half an hour mean, because the volatility of different time scale emissions may be different, so the need to consider the conversion coefficient of different mean comparison, cannot be directly compared.
2. dioxin monitoring frequency is too low can not guarantee the security?
responded: routine detection can reflect the combustion control level of
In accordance with the new standards, supervision and monitoring of heavy metal pollutants at least every quarter in 1, the monitoring of dioxins in flue gas should be carried out at least 1 times a year. Readers think this frequency is too low, it is difficult to guarantee stable emissions standards.
The sea said, in fact, for the detection of dioxins and heavy metal emissions not by increased inspection frequency to guarantee, if according to this logic, is 10 times 1 years can not represent the running status of the perennial. USA garbage incineration of dioxin detected in 1 years 1, Switzerland is 1 years.
In fact, the detection routine index of flue gas and fly ash detection can indirectly reflect the level of fire control. The new standard also stipulates, burning index online monitor operating conditions, should at least include incineration flue gas furnace temperature, oxygen concentration and the concentration of carbon monoxide in the hearth, generate these indicators can control of dioxin.
3. even low dioxin emission will be the cumulative effect of the human body?
said: the sun, soil, water, plants have digestion effect of on the
Experts have pointed out that in the network, the harm of dioxin on the human body has the cumulative effect, low content can not dissolve in vivo.
To this, Ren Mingzhong explained, the cumulative effect is present, especially in body fat, degradation is very slow, need a few years. But the dioxin in before entered the body, the impact on the human body is not the simple addition of 1 plus 1 equals 2. Soil, water, sun oxidation in the atmosphere, and the plants are digestion function. European experts have done research, found no dioxin is accumulate over time phenomenon in modern standard near the incinerator plant, soil, only in the last century seventy or eighty's, foreign some early near the incinerator, found that dioxin accumulation and migration, but the level of emissions is currently thousands of times, greatly exceed natural digestion ability.
Guangdong Provincial Environmental Protection Department:
is planning garbage disposal
projects are not approved the EIA
The existing standards, new standards for the first time, the environmental impact assessment, determine waste incineration project specific location and surrounding sensitive object distance. The main factors that should be considered in the new criterion is given to environmental impact assessment.
The environmental protection department expert analysis points out, project planning and layout, is an important cause of environmental problems. Not long ago, the provincial environmental protection department issued a "further strengthen the living garbage treatment plant (field) to the local environmental protection departments to inform the environmental supervision". Provincial Environmental Protection Department said, although from last year, does not involve the transboundary effects of living garbage disposal project EIA has been delegated to the prefecture level city environmental protection department for approval, but throughout the life garbage treatment plant (field) of the site must comply with the approved and published planning, city planning, environmental protection planning and urban and rural living garbage disposal facilities planning the overall land use planning.
"Do not meet the domestic garbage treatment plant (field) project planning, local environmental protection departments shall approve the EIA documents. To have the planning for new project construction garbage disposal project, particularly in the real estate, the school project EIA approval shall be strictly controlled, effectively reduce the residents and garbage treatment plant (field) between the environmental dispute." Provincial Environmental Protection Department of the relevant person in charge said waste. |
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