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Uncoupler

A technology of decoupling agent and diatom concentrate, which is applied in chemical instruments and methods, water/sludge/sewage treatment, biological water/sewage treatment, etc., can solve the problem of sludge activity reduction and achieve strong performance Effect

Active Publication Date: 2011-11-23
SINOPEC SHANGHAI PETROCHEMICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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Embodiment 1～8

[0018] The uncoupling agent of each embodiment is prepared according to the required ratio, and the specific surface area is 30~60m 2 / g of diatomite, the weight ratio of TCS and diatomite is shown in Table 1.

[0019] Table 1.

[0020]

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Abstract

The present invention discloses uncoupler for weight reduction treatment of excess sludge in aerobic sewage treatment process in an activated sludge method. The uncoupler is a composite which contains the components of 3, 3, 4, 5-tetrachlorosalicylanilide and refined diatomite according to the weight ratio of 1: (0.05-1.5). The uncoupler provided by the present invention can reduce the abated effect on sludge activity obviously at the same time of maintaining good sludge weight reduction performance, the positive effect is very obvious which is embodied in that the sludge weight reduction performance is stronger, and added TCS can be reduced by 20-60 percent if the same sludge weight reduction rate is achieved; and when TCS is added into the system, the removal rate of COD is basically unaffected.

Description

technical field [0001] The invention relates to a decoupling 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 uncoupling agent. Background technique [0002] Activated sludge method is currently the most widely used sewage (including urban sewage or industrial sewage) biological treatment technology, although this process technology has many advantages, such as less investment in infrastructure, good treatment effect, stable operation, etc., but it also has a The obvious disadvantage is that a large amount of residual sludge will be generated during operation. The cost of excess sludge treatment is quite high, generally accounting for 25% to 65% of the total operating cost of the sewage plant. Therefore, reducing or reducing the generation rate of excess sludge in the activated sludge sewage treatment process has always been a subject of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/12
CPCY02W10/10
Inventor 仓一华常莉英姜垒垒赵海云吴敏
Owner SINOPEC SHANGHAI PETROCHEMICAL CO LTD
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