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Pollution-free domestic sewage treating process

A technology of domestic sewage and treatment process, applied in water/sludge/sewage treatment, oxidized water/sewage treatment, water/sewage multi-stage treatment, etc., can solve the problem of high input cost and achieve the effect of cost saving

Inactive Publication Date: 2012-07-11
张荣斌
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The purpose of the present invention is to: provide a pollution-free domestic sewage treatment process that reduces odor, is pollution-free, and treats sewage more effectively and quickly, and solves the problem of high investment cost in existing sewage treatment methods, thereby effectively solving the above-mentioned existing sewage treatment process. problems in technology

Method used

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Effect test

Embodiment

[0026] A pollution-free domestic sewage treatment process, which includes the following treatment steps:

[0027] The first step: the sewage is subjected to solid-liquid coarse separation in a solid-liquid separator,

[0028] Step 2: Mix the sewage after solid-liquid separation into the flocculant and magnetic seeds into the stirrer to stir evenly.

[0029] The third step: mix the sewage after the above steps into the coagulant,

[0030] The fourth step: input the sewage after the above steps into the biofilm nitrification reaction fluidized bed for biological treatment,

[0031] Step 5: Introduce ozone for disinfection,

[0032] Step 6: Enter the fine filtration in the fiber membrane filter.

[0033] In the third step, in the process of mixing the sewage into the coagulant, the coagulant water is added to the sewage mixed with the flocculant water, and is evenly dispersed into the sewage mixed with the flocculant water by low-speed stirring to make the sewage Pollutants f...

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PUM

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Abstract

The invention discloses a pollution-free domestic sewage treating process. The process comprises the following steps of: 1, performing solid and liquid crude separation on sewage in a solid and liquid separator; 2, adding a flocculating agent and magnetic seeds into the sewage subjected to solid and liquid separation, putting into a stirrer, and uniformly stirring; 3, adding a coagulant aid into the stirred sewage; 4, importing the sewage into a biological membrane nitration reaction fluidized bed for biological treatment; 5, introducing ozone for disinfection; and 6, adding into a fiber membrane filter, and finely filtering. By the process, a plurality of processes are used for treating the sewage, so that the sewage can be effectively treated, and the cost can be saved; and in addition, magnetic seed type sewage technologies are organically combined, so that the magnetic seeds can be effectively, quickly and continuously recovered, and the recovered magnetic seeds can be put into a sewage treating system again for recycling.

Description

technical field [0001] The invention relates to a pollution-free domestic sewage treatment process, which belongs to the technical field of sewage treatment. Background technique [0002] Traditional wastewater treatment starts with pretreatment of wastewater, which is carried out in different stages. In the initial stages, sewage undergoes hydrolysis to convert particulate matter into soluble compounds. These soluble compounds are broken down in the next stage. [0003] After pretreatment is complete, some traditional methods may rely on passive techniques, which rely solely on gravity to remove suspended solids from wastewater. Usually a primary settling cellar is used for settling. Settling is a slow process in which the relatively heavy solids in sewage are allowed to settle so that they settle to the bottom of the cellar forming discrete solids containing heavy solids and discrete liquids or waters. As a result, these solids are easily separated from liquid sewage. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F1/52C02F1/78C02F1/50C02F1/44
Inventor 张荣斌
Owner 张荣斌
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