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Read More →![[Xinkunyuan Science Popularization] Why dry sludge?](images/product/160645.jpg)
Why does the sludge need to be dried? First of all, the sludge mentioned here is not the sludge in the stinky ditch or the sludge in the field, which have no drying value. The sludge that needs to be dried is the industrial sludge produced by the company in the production of certain products or the municipal sludge in the Water Bureau.
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Electroplating sludge is the residual product of electroplating wastewater treatment, which contains very rich heavy metals and is one of the very typical hazardous wastes, posing a very great threat to the environment and human health.
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Every year, China's urban sewage treatment plants produce more than 60 million tons of sludge (water content 80%), and the amount of sludge per 10,000 tons of sewage is about 3-8 tons. Due to the long-term problem of "heavy water and light mud", the situation of sludge treatment and disposal is becoming more and more serious. There are a variety of sludge drying technologies, including natural drying, thermal drying, and high drying dehydration. This article mainly talks about sludge drying
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