Wednesday, November 17, 2010

How waste incineration has become Gordian knot

 Waste-end feature articles
how Gordian knot has become?
Mm waste incineration project in Nanjing Jiangbei
controversial survey published in the China Environment News, the original solid waste Journal
:2009-12 -24
Beijing, Nanjing, Shanghai, Wuhan, Wujiang, Panyu hh met each city garbage suffering siege, however, be launched around the waste for the disposal of refuse incineration power generation projects have encountered strong public opposition, the public question the project reliability, generally critical of local government Juece.
newspaper Ji Zhe Fu Nanjing Tiaocha special waste incineration field interviews Jiangbei details of the project Zhengyi hope that through this discussion due to the project, clarify ideas, and objective Fenxi Gongzuo of our waste realistic way. In addition, this newspaper will be published on the Nanjing Tianjingwa landfill investigative reporting, landfill explore the realities of treatment.
China Environment News reporter Yao Yile
a
dioxin controversy whether in the end the British controlled?
party, said: burning controversy at home and abroad have begun to enter the shrinking of
party,UGG boots clearance, said: modern waste incinerator emissions is no longer a major source of dioxin
Although the Government and construction side has repeatedly stressed Yangtze River, Nanjing is a modern waste incineration power plant, automatic control, flue gas treatment system has improved the environmental garden plant, the project also known as the EIA public notice in the control effects of dioxins can reach European standards 0.1ng (TEQ ) / m3, but the opposition does not agree.
representative of opponents, Jiangbei District Court of Xu Jin Quantai to that, to reduce dioxin emissions in the middle part is to maintain a high combustion temperature, so the Environmental Protection Department, Development and Reform Commission, the National Energy Board, / kg or more, while the waste is not classified in Nanjing can not achieve high calorific value, add the coal Combustion is the preferred approach, then the garbage power plant will become the power plant, it will increase pollution.
his analysis, EIA publicity In this regard, Bureau of Nanjing city investigator of division level, the competent person in charge of the project Jiangbei Ouyang Yu Nan explained that the 2005 Nanjing low calorific value of garbage 4975 kJ / kg, but this is the primary waste heat value, not into the furnace waste heat value. garbage in the garbage pit into the blast furnace stack must be 5 to 7 days to allow precipitation of leachate, and to improve the heating value by fermentation. from domestic waste incineration power plant to run the actual situation, when the original waste waterblended with conventional fuels, clearly stated in the technical points not blended coal. When the ignition, closed furnace or otherwise fail to meet requirements in temperature when injected into the diesel combustion by increasing the temperature, there is no problem blending diesel fuel.
in which residents of this project to determine the importance of environmental protection standards under difficult one.
Bureau of Nanjing city responded that the value of the developed countries and can not be recovered without the use of garbage is still blending, no burning of waste to be classified ; and classification of waste 50 years starting from the beginning of last century that is recycling-based, although classified in different ways and foreign sources, but the effect is similar to.
addition, Ouyang Yu Nan believes that the implementation of household waste classification must be based on waste on the basis of classification. Currently only landfill site in Nanjing, if the forced implementation of family classification, separate collection, transportation, and ultimately useless junk is still mixed into the landfill. Thus a single household garbage classification is not feasible to consider only In the construction of incineration, composting and other waste disposal facilities, a diversified, modular handling system, the implementation of family classification makes sense.
in the international arena, burning garbage is a controversial method of Ma, who lives in million and the Metro said that so far, technically unavoidable dioxins produced during waste incineration.
reporter found in the survey, the majority of the residents oppose the construction of this project has been a network or other information channels to understand the hazards of dioxin, and other countries, the application of waste incineration technology. In the close the incinerator, the prohibiting order issued. But the modern waste incineration power plant emissions of dioxins have been very few. According to the German Ministry of the Environment 2005 report, all of Germany's 66 Solid Waste Incineration Dioxin emissions by the year 1985 dropped to less than 0.5 400g g; 1990, the German waste incineration of dioxin emissions in the total emission is nearly 1 / 3, and by 2000, this proportion dropped to less than 1%. Japan, the United States have similar official report. Internet rumors of capacity of 620,000 tons / day. the so-called mainstream technology. 

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