In 2008, a new type of “rotary-kiln CFB multi-stage pyrolysis incineration technology” developed by Zhejiang University was used to treat industrial and medical waste in Huzhou City. A patent has been granted, so China owns the intellectual property rights.
In 2010, the Institute of Mechanics of the Chinese Academy of Sciences developed plasma technology to replace traditional garbage treatment technology. The system they researched directs solid waste such as paper and plastic into a plasma cracking furnace, and turns it into a compound gas of carbon monoxide and hydrogen that has two relevant uses: in high-efficiency power generation, or synthesized into green liquid fuels such as diesel and ethanol. Secondary pollution is almost zero. This technology has been applied experimentally in Sichuan and Shaanxi to treat dangerous waste. Beijing is currently planning the application of the plasma technology with a demonstration project capable of handling 50 tons of municipal solid waste daily.
“Every technology experiences a process of development and adaptation. Even after a decade of use, circulating fluidized bed technology is a new one after all. It needs to be improved to align with industrialization processes,” remarked Jin Jian. “With the fast growth we see in China, the best garbage incineration technology will be a designed-in-China one,” he said confidently.
On June 20, the Chinese government sought public opinion on policies related to household garbage treatment and more comprehensive pollution control. It is inclined to allow some cities to incinerate garbage. It seems that for some time to come, garbage incineration is the method dictated by necessity; and advanced technologies will reduce the attendent harm. |