Chemical sludge due to different types of oil, different moisture content, one by one separation is the industry problems. The current general sludge treatment plant can only be a simple dehydration, which makes subsequent harmless operation costs are very high. Recently, a sludge treatment plant in Dalian, a new set of equipment that can reduce sludge, decontamination, recycling, effectively curb soil pollution.

In the Dagushan Chemical Industry Park, Jianhua New Chemical Sludge Treatment Plant, with an investment of 130 million yuan, is being built. Three technologies are used to separate the oil, water and solid in the sludge by means of heat extraction and treatment.

Subsequently, in the corner of the plant area, after the sludge has passed this process from the main process tank, it can reach the leading domestic level with zero water content and only 1% oil content. It is understood that since the factory was put into operation early this year, it has been operating steadily for 4 months with an annual processing capacity of 50,000 tons.

One of the measures put forward by Dalian Municipality for the goal of controlling the deteriorating soil pollution by 2020 is to promote the construction of domestic waste treatment facilities. Domestic first sludge treatment plant operating in BOT mode Dalian Dongtai Xiajiashan sludge treatment plant, although the daily processing capacity of only 600 tons. However, the sludge and part of the kitchen waste generated from 19 sewage treatment plants in the city can be disposed. The daily output of biogas is 16,500 cubic meters, with an annual output of 60,000 tons of humus soil.

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