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Low-cost sewage treatment method

A sewage treatment method and low-cost technology, which can be used in water/sewage treatment, biological water/sewage treatment, adsorbed water/sewage treatment, etc. It can solve the problem that the discharge level of domestic sewage is not enough to meet the national sewage first-class A standard, etc. To achieve the effect of good water quality, good water quality and strong cleaning ability

Inactive Publication Date: 2021-06-11
广东鹏裕建设有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned related technologies, the inventor believes that when the SBR method is used to treat sewage, because the SBR method has many functions, when dealing with different pollutants, the treatment effect is less than that of targeted treatment of such pollutants, especially the grease and organic matter in domestic sewage. , nitrogen, phosphorus, pathogens, etc., the domestic sewage discharge level after SBR treatment is not enough to meet the national sewage level A standard, so there is still room for improvement

Method used

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Examples

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Effect test

preparation example 1

[0045] This preparation example discloses a coagulant prepared from the following components:

[0046] Coagulant, larch extract, chitosan, water hyacinth root powder and coagulant.

[0047] The coagulant is alum, and the coagulant aid is lime, and the specific input amount (unit: Kg) is shown in Table 2.

preparation example 2

[0049] This preparation example discloses a coagulant prepared from the following components:

[0050] Coagulant, larch extract, chitosan, water hyacinth root powder and coagulant.

[0051] The coagulation agent is polyferric chloride and polyaluminum chloride, and the coagulation aid is lime. The specific input amount (unit: Kg) is shown in Table 2.

preparation example 3-4

[0053] This preparation example discloses a coagulant prepared from the following components:

[0054] Coagulant, larch extract, chitosan, water hyacinth root powder and coagulant.

[0055] The coagulant is polyferric chloride and polyaluminum chloride, and the coagulation aid is activated silicic acid and bone glue. The specific input amount (unit: Kg) is shown in Table 2.

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Abstract

The invention relates to the field of sewage treatment, and particularly discloses a low-cost sewage treatment method. The low-cost sewage treatment method comprises the steps: 1) pretreating; 2) carrying out coagulating sedimentation treatment by using a coagulant; 3) carrying out coagulation post-treatment; 3-1) sludge treatment; and 3-2) carrying out hydrolysis acidification treatment; and 4) carrying out SBR treatment. The coagulant comprises the following components: a coagulant, a larch tannin extract, chitosan, water hyacinth root powder and a coagulant aid according to the mass ratio of 1:(0.8-1):(0.5-0.7):(0.4-0.6):(0.05-0.07). The sewage treatment method with low cost can be used for domestic sewage, and has the advantages that the treatment capacity is high, and water meeting the national first-grade A standard is obtained.

Description

technical field [0001] This application relates to the field of sewage treatment, more specifically, it relates to a low-cost sewage treatment method. Background technique [0002] Domestic sewage is the wastewater discharged from residents' daily life, mainly from residential buildings and public buildings. The pollutants contained in domestic sewage are mainly organic matter (such as protein, carbohydrates, fat, urea, ammonia nitrogen, etc.) Eggs and intestinal infection virus, etc.). The organic matter in domestic sewage is extremely unstable, easy to rot and produce stench, and bacteria and pathogens multiply with the organic matter in domestic sewage as nutrition, which can lead to the spread of infectious diseases. Therefore, life Sewage must be treated before discharge. [0003] At present, the SBR method is used to treat domestic sewage. The main feature is the orderly and intermittent operation in operation. The core of SBR technology is the SBR reaction tank, whic...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F1/52C02F1/56C02F3/12C02F1/50C02F1/28C02F101/22C02F101/30
CPCC02F9/00C02F1/5236C02F1/5263C02F1/5272C02F1/56C02F3/1268C02F1/50C02F1/286C02F2303/04C02F2209/16C02F2209/18C02F2209/08C02F2209/10C02F2101/22C02F2101/301Y02W10/10
Inventor 余伟业何显辉肖锐华何志豪
Owner 广东鹏裕建设有限公司
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