Sludge concentration is the initial process of sludge dewatering. The water content of sludge generated during the sewage treatment process is very high, especially the residual activated sludge in the secondary biological treatment process. The water content is generally 99.20/0 to 99.8%. The residual sludge of the pure oxygen aeration method has a low moisture content of 98.5% or more, and the amount is large, which causes certain difficulties in the treatment, utilization, and transportation of sludge. Therefore, it must be concentrated. The concentrated sludge is similar to paste, and the moisture content is reduced to 95%~97 010.
The object of sludge concentration is interstitial water. When the water content of the sludge is reduced from 99% to 96%, the volume can be reduced to 1/4, but the fluidity can still be maintained. The pump can be used to transport and can be greatly reduced. Transportation costs and post-processing fees.
The commonly used methods for sludge concentration include gravity concentration method, air flotation concentration method, and centrifugal concentration method.
The object of sludge concentration is interstitial water. When the water content of the sludge is reduced from 99% to 96%, the volume can be reduced to 1/4, but the fluidity can still be maintained. The pump can be used to transport and can be greatly reduced. Transportation costs and post-processing fees.
The commonly used methods for sludge concentration include gravity concentration method, air flotation concentration method, and centrifugal concentration method.
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