Sewage impurity separation method

A separation method and impurity technology, applied in chemical instruments and methods, multi-stage water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problem of equipment short-term treatment capacity decline and reduce equipment investment, installation and The effect of convenient maintenance, reduced operating energy consumption and cost

Active Publication Date: 2015-10-14
SHANGHAI ZIZHENG ENVIRONMENT PROTECTION TECH
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Problems solved by technology

Although these technical methods can achieve a good removal effect on these smaller particles, long-term operation often requires off-line cleaning of the filter material (or interruption of equipment operation) to restore its processing performance, which may result in a decline in the short-term processing capacity of the equipment

Method used

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Embodiment Construction

[0030] Figure 1~3 As shown, in this embodiment, the main reactor is divided into two sections, and each section is connected with three grid reactors in parallel as an example. The three grid reactors connected in parallel in section I are a1, a2, a3, and the three grid reactors connected in parallel in section II are a4, e5, a6. In section I, flat micro-grid component b1 is set, and in section II, flat micro-grid component b2 is set. , the water inlet pipe c1 is respectively connected with the water inlet valves e1, e2, and e3 of section I, and is set on the upper part of the reactors a1, a2, and a3; , e8, and e9 are connected to the reactors a1, a2, and a3 respectively, and the vent pipe c6 at the bottom of section II is connected to the vent valve e14 of section II, and connected to the connecting valves e11, e12, and e13. They are connected with reactors a4, a5 and a6 respectively. The chemical cleaning pipe c7 is respectively connected with the chemical cleaning valves...

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Abstract

A sewage impurity separation method relates to the technology of removing impurities form water during a water treatment process and is especially suitable for the impurities being small in size and being difficult to block by a conventional fine grate in water. The sewage impurity separation method is suitable for pre-treatment of municipal sewage, industrial waste water and garbage leachate, removal of impurities of initial-stage CSO overflow in a rain water pump station or a rainwater-sewage confluence pump station, river scum cleaning, sand-water separation and impurity separation in similar water bodies. According to the invention, a multi-sectional structure is employed, wherein a plurality of reactors are connected in parallel in each section. A plate micro-net assembly with side-discharge of water is employed for separating the impurities from sewage. An automatic physical cleaning device is used for performing on-line automatic cleaning to the micro-net. Because water flow in a cleaning assembly is stirred continuously, the liquid in the whole reactor can be fully mixed, thereby avoiding accumulation of the impurities in the reactor. In addition, an aeration unit can be omitted according to requirements. The method is high in recycle rate of sewage, is good in treatment effect and is high in automation degree.

Description

technical field [0001] A new type of sewage impurity separation method that is easy to clean, involves the technology of removing impurities in water during water treatment, especially involves impurities with small particle sizes in water that are difficult to be removed by traditional fine grids, and is suitable for urban sewage, industrial wastewater and garbage seepage Pretreatment of filtrate, removal of impurities in initial CSO overflow of rainwater pumping stations or combined rainwater and sewage pumping stations, cleaning of scum in river channels, separation of sand and water, and separation of impurities in similar water bodies. Background technique [0002] With the rapid development of my country's economy and the improvement of people's living standards, the discharge of sewage (waste) water is increasing day by day, and the organic and inorganic impurities and dissolved substances in sewage have also become complicated and diversified. Such as hair, cotton wo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04
Inventor 藏莉莉张宇李汉冲狄翰娴王旭
Owner SHANGHAI ZIZHENG ENVIRONMENT PROTECTION TECH
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