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Novel photo-biological floating filler for sewage treatment and preparation method and application thereof

A photobiological and floating technology, applied in the field of environmental protection and energy saving, can solve the problems of poor mass transfer performance, high processing cost, short service life, etc., and achieve the effects of good mass transfer performance, improved processing efficiency and long service life

Inactive Publication Date: 2012-04-25
UNIV OF SHANGHAI FOR SCI & TECH
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  • Application Information

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Problems solved by technology

[0004] One of the purposes of the present invention is to propose a new type of photobiological floating system for sewage treatment in order to solve the above-mentioned technical problems such as high processing cost, poor mass transfer performance, non-corrosion resistance, short service life, and inconvenient replacement. filler

Method used

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  • Novel photo-biological floating filler for sewage treatment and preparation method and application thereof
  • Novel photo-biological floating filler for sewage treatment and preparation method and application thereof

Examples

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Embodiment 1

[0036] A new type of photobiological floating filler for sewage treatment, its structure schematic diagram is as follows figure 1 shown. The novel photobiological floating filler is composed of two parts: an inner filler carrier shell 1 and an outer carrier layer 2 .

[0037] The inner filler carrier shell 1 is made of polyethylene with a diameter of 3-5 cm.

[0038] The external load layer 2 is composed of sol-embedded biological sludge doped with titanium dioxide, which constitutes a fixed microbial system, and TiO2 with photocatalytic degradation effect 2 Coupling to realize the joint progress of biological treatment and photodegradation.

[0039] The sol doped with titanium dioxide, that is, polyvinyl alcohol (PVA), sodium alginate, polymerized monomer acrylamide, cross-linking agent N,N'-methylenebisacrylamide (BIS) and water is calculated by mass ratio , that is, water: PVA: TiO2: cross-linking agent N, N'-methylenebisacrylamide (BIS): polymerized monomer acrylamide: ...

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Abstract

The invention discloses a novel photo-biological floating filler for sewage treatment, and the filler comprises two parts of an internal filler loading shell and an external loading layer. The internal filler loading shell is a hollow ball which adopts polyethylene or polyurethane as a material, and has a diameter of 3-5 cm; the external loading layer is biological bacterial sludge embedded in a sol doped with titanium dioxide. Since the internal filler loading shell has a hollow structure, the filler floats in water; with sunlight irradiation, the photocatalytic degradation of sewage is realized; since microorganisms are embedded in the external loading layer, the biological treatment and photodegradation are tightly coupled and have synergistic effect; the sewage treatment effect is improved, and the treatment efficiency is increased. The novel photo-biological floating filler of the invention is in a fluidized state in water, has good mass transfer performance, does not need fixed trusses, has low cost and a long service life, and is convenient for replacement. The problems of short service life and poor treatment effect of current fillers as a result that fixed trusses are easy to be corroded by sewage are solved.

Description

technical field [0001] The invention relates to the technical field of environmental protection and energy saving, in particular to a novel photobiological floating filler for treating sewage, its preparation method and its application in sewage treatment, especially printing and dyeing sewage. Background technique [0002] At present, it is difficult to treat refractory sewage, especially printing and dyeing wastewater, and the investment and operation costs are high. difficulty. For this kind of wastewater, conventional biochemical and physical chemical treatment methods are currently used, but there are problems of high treatment cost and difficulty in achieving better treatment effects, and the present invention is proposed to solve the above technical problems. [0003] Using photocatalysis, the refractory substances in printing and dyeing wastewater can be completely mineralized, and the combination of photocatalysis and immobilized organisms can greatly improve the r...

Claims

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Application Information

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IPC IPC(8): C02F3/34C02F3/02
CPCY02W10/10Y02W10/37
Inventor 伊学农张艳森赵庆鹏伊刚
Owner UNIV OF SHANGHAI FOR SCI & TECH
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