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Small-scale sewage treatment system

A sewage treatment system, small-scale technology, applied in biological water/sewage treatment, water/sludge/sewage treatment, sustainable biological treatment, etc. Complicated methods and other issues, to achieve the effect of low operation and management costs, stable equipment operation, and small footprint

Active Publication Date: 2012-01-25
山东水务环保集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The traditional sewage treatment is to collect sewage from various sewage sources to a certain place, and conduct unified treatment by building a large urban treatment plant. This method has many disadvantages, such as high investment costs for sewage pipelines, and frequent occurrences of running, risking, Leakage, seepage phenomenon, causing secondary pollution
[0003] Due to the large investment in reuse pipelines and the complexity of reuse methods, sewage treatment plants generally discharge sewage directly after centralized treatment, and rarely reuse it, resulting in serious waste of water resources

Method used

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  • Small-scale sewage treatment system
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Experimental program
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Effect test

Embodiment 1

[0027] refer to figure 1 As shown, the main body 1 of the central aeration area mainly includes a casing 101, a geared motor 102, an impeller 103, an inner tank 104, a manual valve 105, etc.; the sludge digestion area mainly includes an intermediate pool 2, a sand filter tank 3, and a clear water pool 4, etc., all adopt the existing technology structure; the middle part of the glass fiber reinforced plastic liner 104 of the main body 1 of the central aeration area is a cylinder, and the upper and lower parts are conical. An aeration deceleration motor 102 is installed on the top, and the surface aeration impeller 103 is installed on the output shaft of the deceleration motor 102. The impeller 103 extends into the inner tank 104, and the side of the main body 1 of the central aeration area is connected with a manual valve 105 through relevant pipelines; The main body 1 of the central aeration area can also adopt an aeration tank of the prior art; the other side of the main body...

Embodiment 2

[0030] refer to figure 2 As shown, the sludge digestion zone also includes an oxidation chamber 5, a sewage source pool 6, a regulating tank 7, a sludge return pump 8, a solenoid valve 9, etc., which are arranged around the main body 1 of the central aeration zone; 1, the oxidation chamber 5 is located near the clear water pool 4, and the oxidation chamber 5 mainly includes a chlorine dioxide generator 501, a sodium chlorite pool 502, a hydrochloric acid pool 503, a solenoid valve 504, etc., and its chlorine dioxide generator 501 is respectively connected to sodium chlorite pool 502 and hydrochloric acid pool 503 through relevant pipelines; It is also possible to connect the main body 1 of the central aeration zone to the sludge return pump 8 and the adjustment tank 7 through the sludge return pipeline, and the adjustment tank 7 is connected to the check valve 602 and the lift pump 601 in the sewage source pool 6 through relevant pipelines; and A return line and a solenoid v...

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Abstract

The invention relates to a small-scale sewage treatment system which comprises a central aeration zone main body, a sludge digestion zone, related pipelines, a control valve and an electric control device, wherein the central aeration zone main body is communicated with a middle pool through the related pipeline; a sand filtration pump is arranged in the middle pool, and communicated with a checkvalve and a sand filtration tank through the related pipelines; a water distributor is arranged in the sand filtration tank, and communicated with an electromagnetic valve through the related pipeline; the sand filtration tank is communicated with a clean water pool through the related pipeline; a recoil pump is arranged in the clean water pool, and communicated with the check valve through the related pipeline; and the check valve is communicated with the sand filtration tank through the related pipeline. Sewage and activated sludge sufficiently contacts oxygen, thereby enhancing the precipitation efficiency, having the advantages of small amount of generated sludge and high purification efficiency, implementing comprehensive treatment of sewage and sludge, and achieving the goals of zero pollution and zero discharge without secondary pollution; the invention is beneficial to recycling reclaimed water and reducing waste of water resources; the system has the advantages of compact structure and small occupied area, and can interrupt water flow and be buried in earth; and the invention can be widely used for constructing scattered water treatment stations in places which are not suitable for constructing large-scale sewage treatment plants.

Description

technical field [0001] The invention belongs to the field of sewage treatment and relates to a small sewage treatment system. Background technique [0002] Traditional sewage treatment is to collect sewage from various sewage sources to a certain place, and conduct unified treatment by building large-scale urban treatment plants. Leakage, seepage phenomenon, causing secondary pollution. [0003] Due to the large investment in reuse pipelines and the complexity of reuse methods, sewage treatment plants generally discharge sewage directly after centralized treatment, and seldom reuse it, resulting in serious waste of water resources. Contents of the invention [0004] The purpose of the present invention is to provide a small-scale sewage treatment system, through the full contact of sewage and activated sludge with oxygen, the sedimentation efficiency is improved, the amount of sludge produced is small, the purification treatment efficiency is high, and the comprehensive t...

Claims

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Application Information

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IPC IPC(8): C02F3/12
CPCY02W10/10
Inventor 曲延华曲震吕晓央
Owner 山东水务环保集团有限公司