Friday, July 6, 2012

Water is heated the law is burnt for the medical rubbish " Reduce the poison "

Water is heated the law is burnt for the medical rubbish " Reduce the poison "
Water is heated the law is burnt for the medical rubbish " Reduce the poison "
It is reported ' Reporter Li TianShu) It is hot with water to deal with the flying dust after the medical incineration of waste, can degrade dioxin among them effectively, reduce the intersection of heavy metal and the intersection of infusion and toxicity, realize to utilize again flying dust. On September 28, an item of research results that the Chinese Technology Association and China science and technology news learn to be recommended is pointed out, Zhejiang University energy is cleaned to utilize national key laboratory researchers to find the brand-new method of a medical wastes of treatment killing two birds with one stone. It is reported, it is mainly to burn the law to deal with the method of the medical wastes, this method can make the medical wastes reduce and hold more than 90%, but brought some environmental problems demanding prompt solution. Burning the flying dust emerging in course contains the strong one carcinogenic and causing lopsidedly and causing mutant dioxin and heavy metal,etc., if has not got appropriate treatment before discharging, they will pollute the source of water through the fact that the atmosphere transmit to every one from discharging the source, bring danger to somebody and environment. So, the flying dust must be through dealing with in order to reduce its toxicity before discharging. At present,last treatment method of flying dust and melt most country mainly about rubbish /solidification, cement solidification, stabilizings chemical,etc.s glass. It is a new kind of effective degradation dioxin methods and water is hot to deal with the flying dust. Under heating the condition in water, in the solvent under the precritical or critical stating has extremely strong oxidizability, can mix with materials such as the organic matter,etc. at the same time, have more extensive integration ability. Water hot and treated flying dust not only dioxin density is reduced notably, but also heavy metal, in order to have saline existence which stabilizes the structure in the flying dust, thus has reduced the infusion toxicity of the heavy metal. Water of heavy metal getting hot to deal with, can realize to utilize again flying dust, carry on the intersection of cement and solidification,etc. deal with and then, have avoided the danger that brings to environment. Meanwhile, whom water heat after the response the intersection of heavy metal and content lower than the intersection of waste water and discharge standard too in the solvent. It is reported, degrade water that dioxin adopts in the flying dust and heat the law, though there are reports in the literature at home and abroad, but while degrading dioxin in the flying dust, consider changing the chemical constitution of the heavy metal, thus reach while reducing the flying dust but the toxic research of infusion of heavy metal scarely has the report.


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