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Method for treating rural domestic sewage by utilizing water supply sludge

A technology for water supply sludge and domestic sewage, applied in water/sludge/sewage treatment, sludge treatment, water/sewage treatment, etc., can solve the problems of low adsorption capacity and low sewage treatment efficiency, and achieve long service life , The effect of enhancing ammonia nitrogen removal capacity and increasing treatment time

Active Publication Date: 2019-07-09
SOUTH CHINA INST OF ENVIRONMENTAL SCI MEP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the existing water supply sludge treatment process of rural domestic sewage, only the simple treatment of water supply sludge does not enhance its mechanical properties during the production process of water supply sludge, and it is easy to disperse the water supply sludge powder in water, and does not Pores will be made for the water supply sludge, so that its adsorption capacity is not high, resulting in low sewage treatment efficiency

Method used

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  • Method for treating rural domestic sewage by utilizing water supply sludge
  • Method for treating rural domestic sewage by utilizing water supply sludge
  • Method for treating rural domestic sewage by utilizing water supply sludge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A method for treating rural domestic sewage by using water supply sludge mainly includes the following steps:

[0031] (1) Take an appropriate amount of feedwater sludge and put it into a mixer, stir at 70°C for 15 minutes, and inject concentrated solidification additives into the feedwater sludge according to 3% of the weight of the feedwater sludge for mixing, and the injection flow rate is 0.3L / min, then stir at a speed of 80r / min until evenly stirred;

[0032] (2) Precipitate the mixture prepared in step (1) for 3 days, remove the supernatant, put the remaining sediment into a diaphragm filter press for filtration to form a feedwater sludge filter press, and put the feedwater sludge filter press into Rotate at a speed of 45r / min in a vacuum environment, and feed argon gas until the vacuum degree is 15Pa, ionize the argon gas into argon ions, and perform plasma sputtering on the surface of the feedwater sludge filter block to make the feedwater sludge filter press ...

Embodiment 2

[0038] A method for treating rural domestic sewage by using water supply sludge mainly includes the following steps:

[0039] (1) Take an appropriate amount of feedwater sludge and put it into a mixer, stir at 85°C for 18 minutes, and inject concentrated solidification additives into the feedwater sludge according to 8% of the weight of the feedwater sludge for mixing, and the injection flow rate is 0.5L / min, then stir at a speed of 100r / min until evenly stirred;

[0040] (2) Precipitate the mixture prepared in step (1) for 5 days, remove the supernatant, put the remaining sediment into a diaphragm filter press for filtration to form a feedwater sludge filter press, and put the feedwater sludge filter press into Rotate at a speed of 50r / min in a vacuum environment, and feed argon gas until the vacuum degree is 20Pa, ionize the argon gas into argon ions, and perform plasma sputtering on the surface of the feedwater sludge filter block to make the feedwater sludge filter press ...

Embodiment 3

[0046] A method for treating rural domestic sewage by using water supply sludge mainly includes the following steps:

[0047] (1) Take an appropriate amount of feedwater sludge and put it into a mixer, stir at 85°C for 20 minutes, and inject concentrated solidification additives into the feedwater sludge according to 12% of the weight of the feedwater sludge for mixing, and the injection flow rate is 0.6L / min, then stir at a speed of 120r / min until evenly stirred;

[0048] (2) Precipitate the mixture prepared in step (1) for 6 days, remove the supernatant, put the remaining sediment into a diaphragm filter press for filtration to form a feedwater sludge filter press, and put the feedwater sludge filter press into Rotate at a speed of 60r / min in a vacuum environment, and pass in argon gas until the vacuum degree is 25Pa, ionize the argon gas into argon ions, and perform plasma sputtering on the surface of the feedwater sludge filter block to make the feedwater sludge filter pr...

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Abstract

The invention discloses a method for treating rural domestic sewage by utilizing water supply sludge, and belongs to the technical field of sewage treatment. A concentration curing additive is added into the water supply sludge, and the water supply sludge is put into a diaphragm filter press for filter pressing to increase mechanical strength of the water supply sludge, so that prepared water supply sludge powder particles are high in particle strength and are not easily dispersed in water, and the treatment time of the water supply sludge particles on sewage is increased. Plasma sputtering pore forming are carried out on the water supply sludge in a production process of the water supply sludge, and porosity of the water supply sludge powder is increased, so that adsorption force of thewater supply sludge powder is improved. Primary sterilization and secondary sterilization are carried out on treated water through a pulsed magnetic field sterilization device, so that the sewage sterilization time can be shortened, and secondary pollution is avoided. Anaerobic bacteria and facultative bacteria simultaneously act through anaerobic-aerobic alternate aeration treatment, and a plurality of nitrification and denitrification processes are achieved in an aeration tank, so that ammonia nitrogen removal capability is enhanced.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a method for treating rural domestic sewage by using water supply sludge. Background technique [0002] With the development of my country's industrial and agricultural production and population growth, the problem of environmental pollution has become increasingly serious. At present, most of the domestic sewage in rural areas of our country is directly discharged without any sewage collection and treatment, causing pond and river pollution, which not only affects the living environment of villagers, but also seriously threatens the health of farmers. The common problems in rural areas are: scattered and large population, weak infrastructure construction, imperfect drainage system and sewage treatment construction. With the change of agricultural lifestyle, the improvement of living environment requirements and the emphasis on one's own health, it is import...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F11/00C02F11/122B01J20/00B01J20/28B01J20/30
CPCB01J20/00B01J20/28011B01J2220/4887C02F1/001C02F1/28C02F1/30C02F1/487C02F1/5245C02F1/66C02F3/30C02F3/302C02F9/00C02F11/00C02F11/008C02F11/122C02F2301/08C02F2303/04
Inventor 魏东洋周雯黄荣新朱李华于晓巍安坤王龙乐陈晓燕雷伟香
Owner SOUTH CHINA INST OF ENVIRONMENTAL SCI MEP
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