A kind of slightly polluted water treatment method
A technology of micro-polluted water and treatment method, applied in water/sewage treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve the problem of increasing the cost of micro-polluted water treatment and reducing the efficiency of micro-polluted water treatment , It is difficult to replace the filter membrane frequently, so as to improve the service life, reduce the processing cost and reduce the replacement frequency.
Active Publication Date: 2021-01-19
CENT & SOUTHERN CHINA MUNICIPAL ENG DESIGN & RES INST CO LTD
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Due to the interception effect of the membrane, the membrane is easily polluted, which reduces the permeability of the membrane and reduces the treatment efficiency of slightly polluted water. During the operation, due to the influence of various factors such as manpower and material resources, it is difficult to replace the filter membrane frequently. At the same time, continuous replacement of the filter membrane will significantly increase the treatment cost of slightly polluted water
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0026] The present invention will be further described below in conjunction with embodiment.
[0027] The slightly polluted water described in the present invention is a well-known type of polluted water in the sewage treatment industry, and the water quality standard is below Class A. For specific water quality indicators, refer to GB18918-2002 "Pollutant Discharge Standards for Urban Sewage Treatment Plants".
[0028] Such as Figure 1-Figure 2 Described, the coagulation pond 3 of the present invention is the cuboid stainless steel pond of 2 cubic meters, and the length, width and height of the cuboid stainless steel pond are respectively: 2m, 1m, 1m; Inject coagulation tank 3, then add 150ml coagulant 3.2, described coagulant 3.2 is the aluminum oxide solution of 2mg / L, coagulate and settle and stand for half an hour, then again with 0.5m 3 Inject water into one side of the coagulation tank 3 at a speed of / h, and add coagulant 3.2, the addition amount of coagulant 3.2 is ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| pore size | aaaaa | aaaaa |
Login to View More
Abstract
The invention discloses a micro-polluted water treatment method, which comprises the steps of injecting micro-polluted water into a coagulating basin, carrying out coagulating sedimentation on the micro-polluted water, and carrying out ultrafiltration through an ultrafiltration membrane, wherein ultrafiltration work of the ultrafiltration membrane is divided into a plurality of work time periods;after the ultrafiltration membrane is paused at each work time period, injecting a micro-metazoa culture solution, after standing the micro-metazoa culture solution and before the follow-up work timeperiod, cleaning up the stood micro-metazoa culture solution through backwashing cleaning of the ultrafiltration membrane. According to the method provided by the invention, the micro-metazoa such asvorticella and rotifera is used for cleaning the ultrafiltration membrane, so that the permeability ratio of the ultrafiltration membrane is improved, the filtration efficiency of the micro-polluted water is improved, meanwhile, the replacement frequency of the ultrafiltration membrane is reduced, and the cost in treating the micro-polluted water is reduced.
Description
technical field [0001] The invention relates to the field of sewage purification, in particular to a slightly polluted water treatment method. Background technique [0002] Due to the increasingly serious water pollution and people's higher and higher requirements for water treatment effluent quality, the traditional water supply treatment methods have limited purification effect on slightly polluted water bodies, and it is difficult to meet the increasingly stringent requirements. Membrane technology has become one of the most promising technologies in the field of water treatment since it can effectively intercept pollutants, bacteria and pathogens since it was first applied in the field of water treatment. [0003] Compared with conventional water treatment methods, membrane separation technology has the advantages of high-quality and stable effluent, high safety, small footprint, and easy automatic control. Due to the interception effect of the membrane, the membrane is...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/04B01D65/08B01D65/02
CPCB01D65/02B01D65/08B01D2321/00B01D2321/04B01D2321/18C02F1/444C02F1/5281C02F2303/14
Inventor 曾磊
Owner CENT & SOUTHERN CHINA MUNICIPAL ENG DESIGN & RES INST CO LTD