Chinese scientists develop new tech in waste incineration

Source: Xinhua| 2019-05-30 17:57:26|Editor: ZX
Video PlayerClose

SHENYANG, May 30 (Xinhua) -- Chinese scientists have developed a method to inhibit the generation of toxic substances from waste incineration through uncovering the formation mechanism of dioxins.

The research carried out by scientists of the Dalian Institute of Chemical Physics of the Chinese Academy of Sciences has led to the development of inhibition technologies which can reduce emissions of dioxins by more than half in solid waste incineration.

A large amount of highly toxic chlorinated aromatic compounds are emitted during solid waste incineration. Substances especially dioxins are listed as persistent organic pollutants by the United Nations Environment Program, due to their carcinogenic, teratogenic and mutagenic effects.

Chen Jiping and Zhang Haijun, the chief scientists leading the research, based in northeast China's Liaoning Province, studied the effects of metal oxides and chlorides on the chlorination of aromatic compounds by simulating the reaction of incineration smoke.

"The chlorination process is a key step to control the formation of the toxic compounds in incineration gas," Chen said. "We found copper and iron chlorides are the key active substances to promote the chlorination of naphthalene."

With the theory, they have successfully inhibited the outputs of dioxins in three large-scale solid waste incineration power plants in China by more than half.

The research result was published in the latest issue of the international science journal Environmental Science and Technology.

TOP STORIES
EDITOR’S CHOICE
MOST VIEWED
EXPLORE XINHUANET
010020070750000000000000011100001381031021
国产无码在线观看免费在线,37pao国产成视频,日韩一区二区视频在线,国产国产人免费人成免费视频麻豆
先锋影音视频一区视频二区 | 日本一区二区三区不卡片高清 | 伊人久久大香线蕉AV网址 | 亚洲中文免费AV | 亚洲噜噜网站在线观看 | 综合在线视频精品专区 |