Treatment device for slightly-polluted surface water and application thereof
A technology of micro-polluted water and treatment equipment, applied in the field of environmental protection, can solve problems such as difficult to completely remove, membrane pollution, human threat, etc., and achieve the effects of prolonging the service life of the membrane, simple operation and management, and low operating cost
Inactive Publication Date: 2015-07-22
SHANGHAI INST OF TECH
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Problems solved by technology
However, these methods have certain limitations, such as: enhanced coagulation can remove most organic and inorganic substances, but it is difficult to completely remove some fine particles or some trace harmful substances; activated carbon adsorption can quickly and effectively remove organic substances in water, However, there is a problem of regeneration after adsorption saturation; membrane separation has a high removal rate of pollutants, but membrane fouling is inevitable
[0004] In addition, the traditional drinking water treatment process is: raw water→coagulation→sedimentation→filtration→disinfection. The treatment effect of this process is stable, but after chlorine disinfection, the residual chlorine will organically react with some components in the water, thus forming "three-to-one" Disinfection by-products pose a potential threat to the human body
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Embodiment 1
[0048] A treatment device for micro-polluted water on the surface. The schematic diagram of the structure is as follows figure 1 As shown, 1 is a flow meter, 2 is a lift pump, 3 is an aeration pump, 4 is a pipeline valve, 5 is a biological contact oxidation tank, 6 is a packing layer, 7 is an aeration device, and 8 is a biological contact oxidation tank. The sewage pipe, 9 is the overflow weir outlet of the biological contact oxidation tank 5, 10 is the flow meter, 11 is the ultrafiltration membrane bioreactor 11, 12 is the aeration device, 13 is the sewage pipe of the ultrafiltration membrane bioreactor, 14 Is a flat membrane filter, 15 is a valve, 16 is an aeration pump, 17 is a flat ultrafiltration membrane outlet, 18 is a pipeline valve, 19 is a suction pump, 20 is a UV disinfection device, 21 is a clean water tank, and 22 is a return flow Pump, 23 is a flow meter, 24 is a pipeline valve, 25 is a pipeline valve;
[0049] That is, the treatment device for micro-polluted water ...
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Abstract
The invention discloses a treatment device for slightly-polluted surface water and application thereof. The treatment device for slightly-polluted surface water combines bio-contact oxidation and an ultrafiltration membrane bioreactor and purifies the slightly-polluted surface water through two-stage biodegradation and membrane filtration. Water after purification treatment reaches the standard of Hygienic Standard for Drinking Water (GB 5749-2006). The treatment device for slightly-polluted surface water, disclosed by the invention, overcomes the defects that a single-stage biotreatment unit degrades organic matters, ammonia nitrogen and the like halfway and the treatment effect is easily affected by an impact load. Moreover, the treatment device for slightly-polluted surface water is simple in structure and convenient to mount, and can be automatically operated.
Description
technical field [0001] The invention relates to a treatment device for surface slightly polluted water and its application in treating slightly polluted water, belonging to the technical field of environmental protection. Background technique [0002] Slightly polluted water sources refer to the slight pollution of drinking water sources, so that some physical, chemical and microbial indicators in the water cannot meet the water quality requirements for drinking water source water in the "Environmental Quality Standards for Surface Water". Degree, chroma, odor, sulfide, ozonide, toxic and harmful substances, pathogenic microorganisms, etc. have exceeded the standard. [0003] Since the 1960s, the quality of drinking water sources in many areas has deteriorated day by day, and people have encountered new problems in the purification of drinking water. In response to new problems in source water, people began to study new technologies for water purification. The most commo...
Claims
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Login to View More IPC IPC(8): C02F9/14C02F103/06
Inventor 毕东苏王鹏李隽臧鹏何慧红夏冬前
Owner SHANGHAI INST OF TECH