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Sewage treating method

A sewage treatment method and sewage treatment 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 less use and poor effect of tertiary treatment, and achieve The effect of broad market application meaning

Inactive Publication Date: 2013-11-20
李志强
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the existing sewage treatment methods generally use primary treatment as pretreatment, secondary treatment as the main body, and tertiary treatment is rarely used, so the effect is not good

Method used

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Embodiment Construction

[0020] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] Such as figure 1 As shown, one embodiment of the present invention is a sewage treatment method, which includes the following sewage treatment steps performed in sequence: filtration treatment step, sedimentation treatment step, anaerobic treatment step, anoxic treatment step, aerobic treatment step, Disinfection processing steps.

[0022] The filtering treatment step is to filter the sewage. For example, the filtering treatment step includes a screening process: the solid floating matter whose volume is larger than a preset value is screened by using a grid with a predetermined mesh size. Preferably, a two-layer grid method is used to carry out the screening step, first screening through a grid with a larger mesh, and then screening through a grid with a smaller mesh, so that not only the work efficiency is improved, but also the sma...

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Abstract

The invention discloses a sewage treating method sequentially comprising the following sewage treating steps of: a filtering treatment step, a precipitating treatment step, an anaerobic treatment step, an anoxic treatment step, an aerobic treatment step, and a disinfecting treatment step. According to the scheme, a multi-stage treatment way is adopted by the sewage treating method; principally, by virtue of physical decontamination treatment combined with biological decontamination treatment, contaminants contained in sewage can be effectively separated out and removed from water; as a result, harmful materials are converted into harmless materials and useful materials and water is purified; besides, resources are utilized sufficiently; the sewage treating method has wide market application significance.

Description

technical field [0001] The invention relates to sewage treatment, in particular to a sewage treatment method. Background technique [0002] Urban sewage treatment refers to the measures taken to change the nature of sewage so that it will not cause harm to environmental waters. Urban sewage treatment is generally divided into three levels: primary treatment, the application of physical treatment to remove insoluble pollutants and parasite eggs in sewage; secondary treatment, application of biological treatment to oxidize and degrade various complex organic substances in sewage into simple Substances; tertiary treatment, the application of chemical precipitation, biochemical, physical and chemical methods, etc., to remove phosphorus, nitrogen, refractory organic matter, inorganic salts, etc. in sewage. [0003] However, the existing sewage treatment methods generally use the primary treatment as the pretreatment, the secondary treatment as the main body, and the tertiary tre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
Inventor 李志强
Owner 李志强
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