Method for mud fast sedimentation conditioning and solid-liquid separation

Abstract

The invention discloses a method for mud fast sedimentation conditioning and solid-liquid separation, and the method is suitable for the field of abandoned construction work mud disposal. The method of combining a capillary water absorption (CST) meter and a laser diffraction granulometer is adopted. The CST meter measures the time which water needs to permeate standard filter paper by a certain distance namely CST time, and the laser diffraction granulometer measures the mud particle size distribution range. The CTS values can visually reflect the mud dehydration effect and then determine the sedimentation conditioning performance of flocculant to facilitate screening of the optimal flocculant or combination, and the usage amount of the flocculant is best. Model selection of filter cloth is guided by the particle size distribution range, the dehydration effect of follow-up mechanical dehydration equipment is enhanced, and the dehydration efficiency is improved, which is beneficial for mud reduction. Mud fast sedimentation conditioning and solid-liquid separation are achieved by the method, and the method needs short time and has the advantages of being high in efficiency, economical, efficient and convenient.

Description

technical field

[0001] The invention belongs to the technical field of waste engineering mud disposal, in particular to a method for rapid mud conditioning and sedimentation solid-liquid separation. Background technique

[0002] At present, the waste mud produced by underground engineering construction in Shanghai is basically first transported to the wharf by tank trucks, and then transported by tugboats to the low-lying places in the surrounding areas for dumping. Due to the long transportation distance and special transportation vehicles, the disposal cost and transportation energy consumption are quite high. This method of treating mud as garbage only transfers the pollution without discovering the reuse value of the mud itself. The treatment method is primitive and backward with low efficiency. And land resources caused a very adverse impact. With the continuous progress of the times and the enhancement of people's awareness of environmental protection, the requiremen...

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