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Sludge deep dehydration conditioner

A deep dehydration and conditioning agent technology, applied in the direction of dehydration/drying/thickened sludge treatment, etc., can solve the problems of low efficiency and high energy consumption, and achieve the effects of cost reduction, low operating energy consumption, and low dehydration pressure

Inactive Publication Date: 2017-01-04
辛华东
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Problems solved by technology

[0006] At present, the current sludge treatment technology, whether it is dehydration, digestion or direct treatment, faces the problems of low efficiency and high energy consumption.

Method used

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specific example

[0016] A chemical plant produces concentrated sludge with a moisture content of 97% every day. According to the results of the small test of the sludge, a sludge deep dehydration conditioner is prepared. The composition of agent A: 0.2g / L 98% concentrated sulfuric acid, 3g / L dehydration aid; B agent components are: 0.5g / L calcium chloride, 0.5g / L 30% hydrogen peroxide. First add Agent A to the concentrated sludge with a water content of about 97%, and stir for 15 minutes, then add Agent B to it, and continue stirring for 15 minutes. After the sludge is conditioned by the conditioner, it is injected into the plate and frame filter press by the sludge pump, and the measured specific resistance after conditioning is 6.6×10 10 m / kg, the specific resistance is reduced nearly forty times, and the moisture content of the obtained dry sludge is 57%.

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Abstract

The invention discloses a sludge deep dehydration conditioner, which comprises an A agent and a B agent. The A agent component includes 98% concentrated sulfuric acid with the addition amount being 0.5-2 g per 1L of sludge and a dehydration accessory ingredient with the addition amount being 0.4-5 g per 1L of sludge. The B agent component includes calcium chloride with the addition amount being 0.2-0.8 g per 1L of sludge and 30% hydrogen peroxide with the addition amount being 0.5-2 g per 1L of sludge. According to different properties of sludge, the content of the A agent component and B agent component can be correspondingly adjusted. Through the sludge deep dehydration conditioner, the order of magnitude of the specific resistance of sludge can be reduced from 10<11> to 10<9>-10<10>, and the moisture content of sludge can be reduced to 50-60%. Compared with a sludge deep dehydration conditioner in the prior art, the sludge deep dehydration conditioner is low in cost, less in consumption, and short in treatment time, and has great market promotion value.

Description

[0001] Technical field: [0002] The invention relates to the technical field of sludge treatment, in particular to a sludge deep dehydration conditioner. [0003] Background technique: [0004] In recent years, with the development of my country's social economy and the increase of urban population, the output of urban domestic sewage and industrial wastewater has increased day by day, and the treatment rate of urban sewage has also increased rapidly. The sludge produced in the sewage treatment process has also become the focus of people's attention. As people's awareness of protecting and improving their own living environment increases, it will inevitably prompt people to carry out deep-level pollution-free cleaning treatment of these sewage. The effective disposal of the sludge generated in the sewage treatment process is becoming increasingly urgent. The so-called sludge usually refers to a thick substance between liquid and solid. The concentration of suspended solids i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/14
Inventor 辛华东
Owner 辛华东
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