Sewage treatment system

A sewage treatment system and catalyst technology, applied in the direction of water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve incomplete treatment, damage to the ecological balance of water bodies, discharge of domestic pollution, etc. question

CN109761407AInactive Publication Date: 2019-05-17HANGZHOU XIAOCHENG IND DESIGN CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2019-05-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a sewage treatment system, comprising a precipitation device, a filtering device, a flocculation device and an oxidation device, wherein the oxidation device comprises a reactor shell, a water inlet pipe arranged at the lower part of the reactor shell, an aeration mechanism, a fixing mechanism for fixing a catalyst, a scraping mechanism for cleaning the surface of the catalyst, and a collecting mechanism, wherein the scraping mechanism comprises a scraping component jointed with the surface of the catalyst, and a driving component for driving the catalyst to revolve; the filtering device comprises a filter cartridge, a first filter screen arranged in the filter cartridge, a filter screen fixing mechanism for fixing the first filter screen, and a cleaning mechanism for cleaning the first filter screen. According to the sewage treatment system, after precipitation is performed, the obtained sewage can be introduced into a flocculation box through a second connecting pipe, and a flocculating agent is added into the flocculation box; under the action of a flocculation stirring mechanism and a flocculation aeration mechanism, the flocculating agent rapidly flocculates with the impurities in the water so as to form flocs, and the flocs can be separated out from the sewage.
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Description

technical field

[0001] The invention belongs to the technical field of wastewater treatment, and in particular relates to a sewage treatment system. Background technique

[0002] With the development of the economy and the advancement of urbanization, the discharge of industrial sewage and domestic sewage is also increasing year by year. Generally, there are many enterprises around the rivers in the city, including leather factories, waste engine oil processing factories, electroplating factories and other heavily polluting industries. These enterprises are basically heavy polluting enterprises, such as leather wastewater, with large fluctuations in water quality and quantity, high concentration of suspended solids, easy corruption, large amount of pollution, and wastewater containing toxic compounds such as nitrogen, phosphorus, sulfide and cadmium. The oil spill from the waste engine oil factory also pollutes the water very seriously. Basically, every 1L of engine oil can ...

Examples

Embodiment Construction

[0020] Such as Figure 1-8 As shown, a sewage treatment system includes a sedimentation device, a filter device, a flocculation device and an oxidation device, and the sedimentation device includes a sedimentation tank 6, a water outlet, a second filter screen and a first connecting pipe 62, and the water outlet is provided with On the side wall of the sedimentation tank, the second filter screen 61 is a conventional filter screen and fixed at the water outlet to prevent floating objects from being discharged from the water outlet to facilitate subsequent treatment; the first connecting pipe 62 is fixed at the water outlet , and the other end communicates with the filter cartridge.

[0021] The filter device includes a filter cartridge 63, a mounting groove 64, a first filter screen 693, a first elastic member 65, an annular insert plate 66, an insertion groove, a rotating shaft 67, a cleaning brush 68, a second driving member 69, and a pressing rod 691 and protrusion 692, th...