A sludge deep dehydration treatment system

Abstract

The invention relates to a deep dewatering treatment system for sludge, which belongs to the technical field of environmental geotechnics. The deep dewatering treatment system is composed of a magnetization pretreatment apparatus, an automatic powder feeding apparatus, an automatic aqua feeding apparatus, pipelines, valves, sensors, sludge metering pumps, reagent metering pumps, sludge pumps, a vacuum manometer, a plate-and-frame filter press and a filtrate collector, wherein the magnetization pretreatment apparatus can save the feeding amount of reagents and reduce cost for the reagents, and the sensors, the automatic powder feeding apparatus and the automatic aqua feeding apparatus are connected with a control system to realize on-line monitoring of data and automatic regulation and control of reagent feeding, thereby greatly improving work efficiency. Deep dewatering of sludge is realized by cyclically treating sludge to allow sludge to have an optimal pretreatment effect. The deep dewatering treatment system has the advantages of reasonable design, a simple structure and convenient operation and can realize deep dewatering of sludge and low energy consumption and cost in modification and dewatering of sludge under the condition of cooperative pretreatment by multiple factors like magnetization and the reagents.

Description

technical field [0001] The invention relates to a sludge deep dehydration treatment system, which belongs to the technical field of environmental geotechnical engineering. Background technique [0002] Sludge is a by-product formed in the process of sewage purification. Sludge is regarded as "dangerous goods" by many countries in the world because of its high water content, high organic matter content, high heavy metal content, and high germ content. [0003] With the improvement of my country's sewage treatment capacity, sludge production has increased significantly. By 2015, the country will produce approximately 33.59 million tons of sludge per year, or 92,000 tons of sludge per day. my country will become the country with the largest sludge production in the world. [0004] my country's sludge treatment and disposal situation is severe. According to the research and analysis of China Water Network, only about 10% of the sludge entering the treatment link nationwide is r...

AI Technical Summary

Problems solved by technology

[0006] Although the domestic sludge treatment and disposal industry has developed rapidly, there are still the following problems: first, the dehydration efficiency is low and the process is not perfect; second, the technology is single, the equipment level is not perfect, and the operating cost is relatively high; third, the sludge after disposal The risk of secondary pollution is high, and the utilization rate of resources is low

Although there are domestic reports on equipment for treating sludge with chemicals, there are few reports about equipment for magnetic field treatment of sludge in China, and there are even fewer reports about equipment for pretreatment of sludge with magnetization and chemicals

Images