4. Sludge treatment system. Basically, chemical and biological methods will produce a lot of sludge, and this part of the sludge has a very high moisture content, almost 99% of the water, so that most of the water must be removed. At this time, it is necessary to use dehydrators, basically to belt machines, plate and frame machines, centrifuges, and screw folding machines, to treat the water in the sludge to about 50%-80%, and then transported to landfill sites, power plants, brick factories and other places.
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