Deep purifying method for domestic sewage

A technology for deep purification and domestic sewage, applied in chemical instruments and methods, biological water/sewage treatment, water/sewage treatment, etc., to achieve the effect of rational application, good effluent quality, and beautification of the environment

Inactive Publication Date: 2018-08-17
许欠欠
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the object of the present invention is to provide a treatment method for domestic sewage, which solves the environmental and ecological problems caused by domestic sewage, and realizes the efficient recycling and utilization of water resources.

Method used

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Embodiment 1

[0040] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0041] A deep purification method for domestic sewage, comprising the following steps,

[0042] Step 1. Preliminary treatment of sewage: crush and stir the domestic sewage to be treated, and process it through the grid to remove plastics, sand and stones and other garbage wastes that are not easy to be crushed in the sewage;

[0043] Step 2. Fermentation treatment of sewage: Add a starter to the sewage treated by grid, mix and stir for fermentation; the starter is composed of Enterococcus faecalis, Enterococcus faecium, Pediococcus lactis, denitrifying bacteria, phosphorus and potassium Bacteria, sulfide-oxidizing bacteria, Candida utilis and Bacillus subtilis, the total live bacteria content is 16 billion / g; the dosage is 2g / 10L;

[0044] Step 3, biological pond purification treatment: the fermented sewage flows through the biological pond through the...

Embodiment 2

[0057] A deep purification method for domestic sewage, comprising the following steps,

[0058] Step 1. Preliminary treatment of sewage: crush and stir the domestic sewage to be treated, and process it through the grid to remove plastics, sand and stones and other garbage wastes that are not easy to be crushed in the sewage;

[0059] Step 2. Fermentation treatment of sewage: Add a starter to the sewage treated by grid, mix and stir for fermentation; the starter is composed of Enterococcus faecalis, Enterococcus faecium, Pediococcus lactis, denitrifying bacteria, phosphorus and potassium Bacteria, sulfide oxidizing bacteria, Candida utilis and Bacillus subtilis, the total live bacteria content is 20 billion / g; the dosage is 3g / 10L;

[0060] Step 3, biological pond purification treatment: the fermented sewage flows through the biological pond through the water inlet 7, is purified for 10 days, and flows out from the water outlet 8; the algae are fixed by embedding;

[0061] Bio...

Embodiment 3

[0073] A deep purification method for domestic sewage, comprising the following steps,

[0074] Step 1. Preliminary treatment of sewage: crush and stir the domestic sewage to be treated, and process it through the grid to remove plastics, sand and stones in the sewage that are not easy to crush;

[0075] Step 2. Fermentation treatment of sewage: add starter to the sewage treated by grid, mix and stir for fermentation treatment; the starter is composed of Enterococcus faecalis, Enterococcus faecium, Pediococcus lactis, denitrifying bacteria, phosphorus and potassium bacteria, sulfide oxidizing bacteria, Candida utilis and Bacillus subtilis, the total live bacteria content is 18 billion / g; the dosage is 2.5g / 10L;

[0076] Step 3, biological pond purification treatment: the fermented sewage flows through the biological pond through the water inlet 7, purified for 8 days, and flows out from the water outlet 8; the algae are fixed by embedding;

[0077] Biological ponds such as f...

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Abstract

The invention discloses a deep purifying method for domestic sewage. The deep purifying method comprises the following steps of S1, primary treatment of sewage; S2, fermentation of the sewage; S3, purification of a biological pond; S4, chemical precipitation; S5, deep purification. The deep purification method has the advantages that the sewage is deeply treated by combining sewage biological purification and chemical purification, so that the characteristics of low power consumption, high quality of drained water and the like are realized; the sewage is effectively treated, the environment isbeautified, the ecology is protected, and the energy source is saved; the operation is simple, the implementing is easy, the sewage treatment cost is low, and the effect is good.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a treatment method for domestic sewage. Background technique [0002] Domestic sewage is mostly detergents, garbage, feces, etc., and most of them are non-toxic inorganic salts. Domestic sewage contains a lot of nitrogen, phosphorus, sulfur, and many pathogenic bacteria. Especially in recent years, the widespread use of detergents has caused the phosphorus content in domestic sewage to remain high. High phosphorus content in wastewater will cause serious pollution. Therefore, it needs to be treated before discharge to reduce the phosphorus content in wastewater. Now many Aluminum salts are directly used for treatment, but the amount of aluminum salts added is not easy to control, and the treatment effect cannot meet the needs of direct discharge. Moreover, if the fecal garbage in domestic sewage cannot be cleaned up in time and quickly, the odor will volatilize, and the bacteria ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F101/10C02F101/16
CPCC02F9/00C02F1/001C02F1/42C02F1/441C02F1/444C02F1/46104C02F1/50C02F1/5236C02F1/54C02F1/56C02F1/66C02F3/325C02F3/34C02F3/342C02F3/347C02F2101/101C02F2101/105C02F2101/16
Inventor 许欠欠
Owner 许欠欠
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