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Sewage treatment method

A sewage treatment method and sewage technology, applied in the direction of water/sewage multi-stage treatment, water/sludge/sewage treatment, biological sludge treatment, etc., can solve the problem of high concentration, achieve low operating cost, prolong service life, reduce The effect of poisoning

Pending Publication Date: 2022-07-08
四川文理学院
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0014] The purpose of the present invention is to: aim at urban domestic sewage containing a large amount of organic matter, these substances will be corrupted and deteriorated during the process of transporting through urban pipelines, thereby producing a large amount of nitrogen, phosphorus, hydrogen sulfide and other substances, which lead to biochemical To deal with the problem of excessive concentration of nitrogen, phosphorus, hydrogen sulfide and other substances in the sewage in the pond, and provide a sewage treatment method

Method used

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  • Sewage treatment method

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Embodiment 1

[0045] This embodiment provides a sewage treatment method, which is an innovative sewage treatment technology based on iron-based nanoparticles. This application aims to develop an integrated new technology for domestic sewage treatment using iron-based nanoparticles, which can achieve multiple benefits through one-time dosing, thereby improving the operation of sewers and enhancing the treatment effect of sewage treatment plants.

[0046] like figure 1 As shown, the operation of the method is as follows.

[0047] (1) Addition of drugs

[0048] An iron-based nanoparticle dosing device is installed at the inlet end of the urban sewage pipeline, or in the urban sewage pipeline. The iron-based nanoparticles are added to the urban sewage pipeline through the iron-based nanoparticle dosing device, so that the iron-based nanoparticles and the sewage in the urban sewage pipeline are sent to the urban domestic sewage treatment plant, and finally enter the biochemical treatment of th...

Embodiment 2

[0084] In this example, on the basis of the iron-based nanoparticle dosing device in step (1) of Example 1, the aluminum sludge from the waterworks is dosed into the urban sewage pipeline through the sludge dosing device. According to the flow meter of sewage in the urban sewage pipeline, the mass of sludge from the water plant that needs to be added per cubic meter of sewage is 15g.

[0085] In this embodiment, the iron-based nanoparticle dosing device and the sludge dosing device may be the same device or different devices. In the production process of water plants, most cities usually use polyaluminum chloride as a water purifying agent, which will produce aluminum sludge accordingly. Typically, aluminium sludge is treated as waste and needs to be treated separately. In the present application, the aluminum sludge from the waterworks is directly put into the urban sewage pipeline to achieve the corresponding sewage treatment effect, which not only realizes the effective ut...

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Abstract

The invention discloses a sewage treatment method, and aims to solve the problem that the concentrations of substances such as nitrogen, phosphorus, hydrogen sulfide and the like in sewage fed into a biochemical treatment tank are too high due to the fact that urban domestic sewage contains a large amount of organic matters and the organic matters are rotten and deteriorated in the process of being conveyed through an urban pipeline. The method comprises the following steps: chemical addition, biochemical treatment, precipitation, anaerobic treatment and iron recovery. The invention provides a'transfer type 'method for use of the iron-based nanoparticles in sewage treatment, and provides an example for single use mode conversion of other various sewage treatment chemicals. With the adoption of the application, the use amount of chemicals in the urban sewage system can be greatly reduced, so that great environmental and economic benefits are brought. Furthermore, by adopting the method, on one hand, the treatment operation cost is saved by reducing the use amount of chemicals, and on the other hand, the environmental negative effect possibly brought by the chemicals is also reduced.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to the field of urban domestic sewage treatment, in particular to a sewage treatment method. More specifically, the present application is based on the existing urban sewage treatment system, and through optimization of the treatment process, the content of hydrogen sulfide and phosphate entering the sewage treatment system can be effectively reduced, and the impact of hydrogen sulfide on the urban sewage pipe network and sewage treatment system can be reduced. The damage of the internal biochemical treatment system and the improvement of the treatment efficiency per unit time of the sewage treatment system have significant progress significance. Background technique [0002] In recent years, with the development of society and the advancement of technology, the requirements for sewage treatment technology have gradually increased from simple harmlessness to resource utilization and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F11/04
CPCC02F9/00C02F11/04C02F1/5236C02F2001/007C02F3/00Y02E50/30
Inventor 蒋光明王成端赖川苟万符东陈春坛张巧玲魏伟
Owner 四川文理学院
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