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Rural sewage treatment method

A treatment method and technology for rural sewage, applied in the field of water treatment, can solve the problems of high operation energy consumption, easy blockage, shortening operation period, etc., and achieve the effects of overcoming environmental pollution, convenient maintenance and use, and low construction cost

Inactive Publication Date: 2016-09-07
SICHUAN GERUISI ENVIRONMENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned existing biofilm sewage treatment methods generally have shortcomings such as breeding of mosquitoes and flies, large fluctuations in the purification effect of different types of sewage, low efficiency, insufficient operational stability, and easy blockage to shorten the operating cycle.
In order to prevent equipment blockage and improve treatment efficiency, sewage lifting pumps are usually used to increase the flow rate of sewage, which results in high energy consumption and high maintenance frequency
Moreover, due to reasons such as economy, technology, and operating costs, it is difficult to promote the existing conventional sewage treatment methods in remote and scattered rural areas such as hills and mountainous areas.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment 1: a kind of processing method of rural sewage, it comprises the following steps:

[0033] S1. Retention: the collected sewage is intercepted by a mechanical grille to remove large particles of pollutants and floating objects in the sewage, and the waste water enters the grit chamber;

[0034] S2. Grit: Grit treatment the sewage in the grit chamber for 4 hours, remove the sediment, and the effluent flows into the regulating tank;

[0035] S3. Adjustment: Add sodium hydroxide to the adjustment tank to adjust the pH value of the wastewater to 8, and the effluent flows into the denitrification tank;

[0036] S4. Denitrification: The sewage after pH adjustment and the reflux liquid of the denitrification tank form a mixed solution, methanol and phosphoric acid are added to the denitrification tank for denitrification, and the effluent flows into the aerobic tank of the biological turntable. The methanol and potassium dihydrogen phosphate The weight ratio is 3:1;...

Embodiment 2

[0041] Embodiment 2: a kind of processing method of rural sewage, it comprises the following steps:

[0042] S1. Retention: the collected sewage is intercepted by a mechanical grille to remove large particles of pollutants and floating objects in the sewage, and the waste water enters the grit chamber;

[0043] S2. Grit: Grit treatment the sewage in the grit chamber for 6 hours, remove the sediment, and the effluent flows into the regulating tank;

[0044] S3. Adjustment: Add potassium hydroxide to the adjustment tank to adjust the pH value of the wastewater to 9, and the effluent flows into the denitrification tank;

[0045] S4. Denitrification: The sewage after pH adjustment and the reflux liquid of the denitrification tank form a mixed solution, methanol and phosphoric acid are added to the denitrification tank for denitrification, and the effluent flows into the aerobic tank of the biological turntable. The methanol and potassium dihydrogen phosphate The weight ratio is 5...

Embodiment 3

[0050] Embodiment 3: a kind of processing method of rural sewage, it comprises the following steps:

[0051] S1. Retention: the collected sewage is intercepted by a mechanical grille to remove large particles of pollutants and floating objects in the sewage, and the waste water enters the grit chamber;

[0052] S2. Grit: Grit treatment the sewage in the grit chamber for 5 hours to remove the sediment, and the effluent flows into the regulating tank;

[0053] S3. Adjustment: Add sodium hydroxide to the adjustment tank to adjust the pH value of the wastewater to 8.5, and the effluent flows into the denitrification tank;

[0054]S4. Denitrification: The sewage after pH adjustment and the reflux liquid of the denitrification tank form a mixed solution, methanol and phosphoric acid are added to the denitrification tank for denitrification, and the effluent flows into the aerobic tank of the biological turntable. The methanol and potassium dihydrogen phosphate The weight ratio is 4...

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Abstract

The invention discloses a rural sewage treatment method. The method comprises the steps of entrapment, sand setting, regulation, denitrification, aerobic treatment, precipitation, filtration and inspection. Through combination of a biological rotating disc and a constructed wetland, activated sludge treatment is conducted on wastewater through an aerobiotic tank of the biological rotating disc so that BOD and COD can be removed, water is further purified under the combined action of filtration of a filter layer of the constructed wetland, plant purification and soil adsorption, and up-to-standard discharge of water is guaranteed. According to the method, equipment construction cost is low and can be accepted by peasant households easily, treatment of domestic sewage of rural areas characterized in residence dispersal is realized, and environment pollution caused by domestic sewage is avoided; treatment effect is good, energy consumption is low, maintenance and using are convenient, and long-term use is possible.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and in particular relates to a treatment method for rural sewage. Background technique [0002] With the progress of human civilization and the development of social economy, human beings have gradually realized the importance of environmental protection in promoting social progress and sustainable, stable and coordinated economic development. Environmental protection has become a basic national policy of our country and has received widespread attention and attention from the society. [0003] The rapid development of rural science and technology agriculture has accelerated the pace of my country's new rural construction planning. In the near future, the era of "scattered" households in the same village will be bid farewell, and it will be replaced by "soft and hard" facilities for life, medical care, science, and culture. Complete the pattern of living together in the same village. Liv...

Claims

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Application Information

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IPC IPC(8): C02F9/14
CPCC02F9/00C02F1/001C02F1/52C02F1/66C02F3/30C02F3/32C02F2301/08
Inventor 陈方方雷弢王超
Owner SICHUAN GERUISI ENVIRONMENT TECH CO LTD
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