LZZG sludge dewatering method is divide into 2 stages: thickener and filter press. Thickening as the first step of sludge treatment is essential in order to separate the solid and liquid phases and reduce the volume of sludge by concentration.
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And the flocculants are sometimes used to achieve as high as possible dry matter in the machine dewatering and must be specifically selected for the sludge. Then, the dewatring process of filter press used to reduces the water content of the concentrated sludge.