Compound uncoupling agent

A technology of uncoupling agent and tetrachlorosalicylanilide, applied in the field of uncoupling agent, can solve problems such as sludge activity reduction, and achieve the effect of strong performance

Active Publication Date: 2011-10-05
SINOPEC SHANGHAI PETROCHEMICAL CO LTD
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0005] The present invention provides a kind of complex uncoupling agent, it is main component with 3,3 ', 4 ', 5-tetrachlorosalicylanilide (TCS), after adding other auxiliary components, can effectively Solve the technical problem of sludge activity reduction caused by the addition of TCS in the sewage treatment system

Method used

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  • Compound uncoupling agent
  • Compound uncoupling agent
  • Compound uncoupling agent

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Embodiment 1～8

[0023] The uncoupling agent of each embodiment is prepared according to the required ratio, and the specific surface area is 30-60 m 2 The weight ratio of TCS, diatomite and zeolite powder is shown in Table 1.

[0024] Table 1.

[0025]

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Abstract

The invention discloses a compound uncoupling agent which is used for deweighting treatment of residual sludge in the sewage treatment technology with the activated sludge process. The compound uncoupling agent comprises 3,3,4,5- tetrachlorosalicyloylaniline, refined diatomite and zeolite. When one part by weight of 3,3,4,5-tetrachlorosalicyloylaniline is provided, 0.05-1.0 part by weight of refined diatomite is provided, and 0.05-1.0 part by weight of zeolite is provided. The compound uncoupling agent provided by the invention can obviously lower attenuation on sludge activity while keeping favorable sludge decrement performance and has obvious active effect, which embodies on the aspect that the sludge decrement performance is enhanced, for example, the added TCS can be reduced by 20-60% for reaching the same sludge decrement ratio; after TCS is added in a system, COD strainaway rate is not affected on the whole.

Description

technical field [0001] The invention relates to an uncoupling agent, in particular to the residual sludge reduction treatment in the activated sludge aerobic treatment sewage process, and the main component is 3,3',4',5-tetrachlorosalicylanilide the uncoupling agent. Background technique [0002] The activated sludge process is currently the most widely used biological treatment technology for sewage (including urban sewage or industrial sewage). Although this process technology has many advantages, such as less capital investment, good treatment effect, and stable operation, it also has a The significant disadvantage is that a large amount of excess sludge is produced during operation. The treatment cost of excess sludge is quite high, generally accounting for 25% to 65% of the total operating cost of the sewage plant. Therefore, the activated sludge sewage treatment process to reduce or reduce the generation rate of excess sludge has always been a topic of great concern. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/12
CPCY02W10/10
Inventor 仓一华郭志宏吴培云赵海云吴敏
Owner SINOPEC SHANGHAI PETROCHEMICAL CO LTD
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