A combined biofilm reaction device suitable for high turbidity raw water pretreatment

A technology of reaction device and biofilm, applied in biological water/sewage treatment, water/sludge/sewage treatment, sustainable biological treatment, etc. land area, is conducive to maintenance and long-term operation, and reduces the effect of adverse effects

Active Publication Date: 2016-08-24
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the defects that high turbidity polluted raw water has great influence on the performance of raw water biological pretreatment process, and the operation cost of coagulation and sedimentation is high, the present invention provides a combination suitable for high turbidity raw water pretreatment from the raw water biological pretreatment reaction device biofilm reactor

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  • A combined biofilm reaction device suitable for high turbidity raw water pretreatment

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with specific examples, but the protection scope of the present invention is not limited thereto.

[0016] As shown in the attached figure, a combined biofilm reactor suitable for high turbidity raw water pretreatment has a reactor body, including the turbidity removal unit I at the front end and the biofilm process unit II at the rear end; the reactor body The turbidity removal unit Ⅰ is equipped with a water inlet pipe 1 in the middle of the side, a mud discharge pipe 2 at the bottom, a detachable turbidity removal screen 3, a lower baffle 6 and an upper baffle 7, and a turbidity removal screen 3. It is fixed in the reactor through the card slot inside the reactor and the fixing knob 4. The high-pressure backwash pipe 5 is set on the front of the unit I. The biofilm process unit II is divided into two carrier filling areas 9 by the upper baffle 7. The unit II. An aeration device 8 is arranged at the ...

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Abstract

The invention provides a combined biofilm reaction device suitable for pretreatment of high turbidity raw water. The device has a reactor body, including a front-stage turbidity removal unit I and a rear-stage biofilm process unit II. The process device is equipped with the reactor body: water inlet pipe, mud discharge pipe at the bottom, detachable turbidity removal screen, fixed knob, high-pressure backwash pipe, lower baffle, upper baffle, aeration device, Carrier filling area, overflow weir, outlet pipe. The combination of turbidity removal and biological reaction process in the present invention can effectively reduce the occupied area of ​​the reactor and reduce the adverse effect of turbidity on the raw water biofilm pretreatment process. Make full use of the microorganisms in the turbidity interception in the turbidity removal unit and the biofilm function in the aeration-enhanced biofilm pretreatment process unit, which can effectively remove nitrogen and organic pollutants in raw water, and can avoid pre-coagulation Effect of precipitation process on process performance of raw water biofilm pretreatment.

Description

technical field [0001] The invention relates to a combined biofilm device suitable for pretreatment of high turbidity raw water. Background technique [0002] The biofilm pretreatment process can effectively improve the effluent water quality due to its advantages of less sludge production, high operating performance, strong ability to retain microorganisms, good load fluctuation resistance, and low operating cost. Especially for low-nutrient or even oligotrophic raw water pretreatment, its role is getting higher and higher, and it has been widely used in raw water biological pretreatment process. Raw water biofilm pretreatment can effectively remove nutrients such as nitrogen and phosphorus in raw water, and can effectively remove the precursor substances of disinfection metabolites in the water body, stabilize the water quality of raw water, and reduce the disinfection with "three causes" in the subsequent disinfection process Production of by-products. [0003] However,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/12
CPCY02W10/10
Inventor 徐向阳阳广凤冯丽娟朱亮杨玘王莎飞
Owner ZHEJIANG UNIV
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