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An underground sewage treatment device

A sewage treatment device and sewage technology, applied in the direction of water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problems of not getting proper treatment and poor sewage treatment effect, and achieve Effect of reducing processing pressure and improving processing efficiency

Active Publication Date: 2016-05-11
JIAOCHENG WEICHUANG ENVIRONMENT PROTECTION ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The first technical problem to be solved by the present invention is the problem that the sewage treatment effect of the buried sewage treatment device in the prior art is poor, so as to provide a buried sewage treatment device that can effectively treat sewage
[0008] The second technical problem to be solved by the present invention is that the sludge treated by the buried sewage treatment device in the prior art has not been properly treated, so it is impossible to apply the treated sludge to sewage treatment to form In order to solve the problem of recycling sewage treatment system, and then provide a sewage treatment device that can effectively utilize the sludge after sewage treatment to realize the recycling of sewage treatment system

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] (1) Sewage enters the activation pool 4 through the grille 1, and the stirring device is turned on to stir the sludge. During stirring, forward stirring and reverse stirring are alternately carried out, and the stirring time is 1 hour. The stirring time is equal to 0.5h respectively;

[0049] After stirring, let it stand for 1.5 hours, then add surfactant to the sewage in the activation pool 4, and simultaneously turn on the two counter-rotating stirring devices to shear and mix the sewage and surfactant, and after mixing evenly, let it stand for 3 hours Stratification, discharge the upper layer liquid to the anaerobic tank 2, and pump the lower layer of sludge to the sludge tank 21;

[0050] In the present embodiment, selecting described tensio-active agent to be sodium dodecylbenzene sulfonate, the mass ratio of sodium dodecylbenzenesulfonate and described sewage is 1: 8;

[0051] (2) Sewage is anaerobically treated in the anaerobic pool 2 for 5 hours, and the sewage...

Embodiment 2

[0054] (1) The sewage enters the activation pool 4 through the grid 1, and the stirring device is turned on to stir the sludge. During stirring, forward stirring and reverse stirring are alternately carried out, and the stirring time is 3 hours. The stirring time is equal to 1.5h respectively;

[0055] After stirring, let it stand for 3 hours, then add a surfactant to the sewage in the activation pool 4, and simultaneously turn on two counter-rotating stirring devices to shear and mix the sewage and the surfactant. layer, discharge the upper liquid to the anaerobic tank 2, and pump the sludge from the lower layer to the sludge tank 21;

[0056] In the present embodiment, select described tensio-active agent to be sodium dodecylbenzene sulfonate, the mass ratio of sodium dodecylbenzenesulfonate and described sewage is 1: 9;

[0057] (2) Sewage is subjected to anaerobic treatment in the anaerobic pool 2 for 3 hours, and the sewage after the anaerobic treatment enters the anoxic...

Embodiment 3

[0060] (1) Sewage enters the activation pool 4 through the grid 1, and the stirring device is turned on to stir the sludge. During stirring, forward stirring and reverse stirring are alternately carried out, and the stirring time is 5 hours. The stirring time is equal to 2.5h respectively;

[0061] After stirring, let it stand for 3 hours, then add a surfactant to the sewage in the activation pool 4, and simultaneously turn on two counter-rotating stirring devices to shear and mix the sewage and the surfactant. layer, discharge the upper liquid to the anaerobic tank 2, and pump the sludge from the lower layer to the sludge tank 21;

[0062] In the present embodiment, selecting described tensio-active agent to be sodium dodecylbenzenesulfonate, the mass ratio of sodium dodecylbenzenesulfonate and described sewage is 1: 10;

[0063] (2) Sewage is anaerobically treated in the anaerobic pool 2 for 8 hours, and the sewage after the anaerobic treatment enters the anoxic pool 11 for...

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Abstract

The invention relates to a buried sewage treatment device which comprises a grating, an anaerobic pool and a settling pond, and further comprises an activating pool, wherein the sewage treatment device is further provided with a sludge pool, the activating pool is internally provided with a cavity for accommodating sewage, the cavity is internally provided with a stirring device, and the activating pool is provided with a surfactant inlet and a sewage inlet. The device provided by the invention is used for stirring sludge by virtue of the stirrer to forwardly and reversely shear sludge, so that dirt in the sludge can be thoroughly sheared and crushed. A surfactant can be added by virtue of the surfactant inlet and the wrapped dirt is favorably dissociated on the surface, so that the sewage treatment efficiency is improved.

Description

technical field [0001] The invention relates to an underground sewage treatment device, which belongs to the technical field of sewage treatment equipment. Background technique [0002] With the growth of economy and population, the problem of environmental pollution has attracted more and more attention; at present, common environmental pollution includes air pollution, water pollution, soil pollution and so on. For water pollution, sewage is one of the important pollution sources; in order to better reduce water pollution, the effective treatment of sewage has become an important way to solve water pollution problems. [0003] At present, sewage treatment devices are generally used for sewage treatment, and common sewage treatment devices are ground-type treatment devices arranged at sewage outlets. Considering the effect of sewage treatment, common surface treatment devices need to install many large devices, such as sedimentation equipment, anaerobic treatment equipment...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14
Inventor 郭嘉威
Owner JIAOCHENG WEICHUANG ENVIRONMENT PROTECTION ENG CO LTD
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