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A device and method for purifying toxic sewage

A sewage and water storage tank technology, applied in chemical instruments and methods, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve the problem of unusable toxic waste water, unreasonable packing structure, poor impact resistance, etc. problems, to achieve the effect of improving advanced oxidation, reducing sewage turbidity, and long residence time

Inactive Publication Date: 2016-05-04
CHINESE RES ACAD OF ENVIRONMENTAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] (1) The packing structure is not reasonable and easy to block;
[0005] (2) It cannot be applied to toxic waste water;
[0006] (3) Poor impact resistance, etc.

Method used

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  • A device and method for purifying toxic sewage

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Embodiment Construction

[0029] The device for purifying toxic sewage with a three-stage biofilm reactor provided by the present invention can efficiently purify pollutants (such as nitrogen, phosphorus, organic matter, microorganisms, pathogenic bacteria, suspended particles, colloids, etc.) in toxic sewage.

[0030] see figure 1 . The device for purifying toxic sewage with a three-stage biofilm reactor provided by the present invention, its main structure includes:

[0031] The three-stage biofilm reactor 4 is provided with a mud discharge hole 40 at the bottom, and a mixer 41 is arranged above the mud discharge hole 40, and a low-density flow packing 39 is laid around the mixer 41, and the low-density flow filler 39 adopts nanometer powder. Coal Ash Sintered Molecular Sieve. A steel mesh 43 is placed above the mobile packing 39 to prevent the upward flow of the mobile packing 39. A composite packing 5 is arranged above the steel mesh 43. The composite packing 5 is grown on the surface of the pack...

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Abstract

The invention provides a device for purifying toxic sewage by utilizing a three-stage bio-membrane reactor. The device comprises the following four parts: the three-stage bio-membrane reactor, a nano aerated coagulation-micro-vortex flocculation device, a three-level backflushing and screening device and an immersed hollow fiber membrane. The invention also discloses a method for treating sewage by utilizing the device. The device has high effluent quality and good transparency and can be applied to garden irrigation, site washing and the like; the humus in the treated sewage is reduced by more than 95% and the number of microorganisms in the treated sewage is reduced by 99%; the effluent quality and transparency are high.

Description

technical field [0001] The invention relates to a device for purifying toxic sewage with a three-stage biofilm reactor. [0002] The invention also relates to a method for purifying toxic sewage by using the above-mentioned device. Background technique [0003] The biofilm reactor is to add various fillers in the reactor to allow microorganisms to attach and grow, so that a layer of biological film-like structure is formed on the filler. This process is suitable for the growth and reproduction of various microorganisms, and the biofilm phase is diversified, and There is no sludge bulking, no need for sludge return, and it is easy to manage, but there are many disadvantages in the treatment of sewage by biofilm reactors: [0004] (1) The packing structure is not reasonable and easy to block; [0005] (2) It cannot be applied to toxic waste water; [0006] (3) Poor impact resistance, etc. Contents of the invention [0007] The object of the present invention is to provid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14
Inventor 王雷席北斗张列宇余红黄彩红何小松黎佳茜李曹乐
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI