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Surface micro-reoxygenation biological pretreatment reactor and method thereof

A biological pretreatment and reactor technology, applied in the direction of biological water/sewage treatment, anaerobic digestion treatment, chemical instruments and methods, etc., can solve the complex composition of printing and dyeing wastewater, the increased difficulty of treatment, and the difficulty in achieving ideal sewage treatment effects, etc. problem, to achieve the effect of reducing impact, reducing energy consumption and reducing use

Pending Publication Date: 2018-03-27
SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the complex composition of printing and dyeing wastewater, the difficulty of its treatment increases, and the existing push-flow or up-flow treatment methods are difficult to achieve the ideal sewage treatment effect.

Method used

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  • Surface micro-reoxygenation biological pretreatment reactor and method thereof
  • Surface micro-reoxygenation biological pretreatment reactor and method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0026] Example 1: Combining Figure 1 to Figure 2 Illustrate the biological pretreatment reactor 10 of surface micro-reoxygenation of the present invention, figure 2 The direction indicated by the dotted arrow in the middle is the direction of sewage flow. The biological pretreatment reactor 10 of the present embodiment is a box with a cuboid shape and an open top, that is, the top of the box communicates with the atmosphere, such as figure 2 As shown, the top of the left side wall of the biological pretreatment reactor 10 is provided with a water inlet 11, and the top of the right side wall is provided with a water outlet 12, and the water inlet level is higher than the water outlet level; the water inlet 11 and the water outlet 12 are juxtaposed And three baffle assemblies 20 are arranged at intervals, and the two ends of the baffle assemblies 20 are fixed on the side walls of the biological pretreatment reactor 10 that are not provided with the water inlet 11 and the wate...

Embodiment 2

[0035] Embodiment 2: Combination figure 1 and figure 2 The method for the biological pretreatment of a kind of surface micro-reoxygenation of the present invention is illustrated, and the concrete steps are as follows:

[0036] Using the biological pretreatment reactor 10 described in Example 1, the biological pretreatment reactor 10 is filled with an appropriate amount of elastic three-dimensional filler, and the sludge is obtained from the anaerobic hydrolysis tank of a sewage treatment plant for film acclimation and sent to biological The pretreatment reactor 10 uses a peristaltic pump to draw the pretreated sewage into the biological pretreatment reactor 10 through the water inlet, and the sewage passes through three diversion chambers a and three anaerobic chambers formed by three baffle assemblies 20 in sequence. The hydrolysis reaction chamber b makes the sewage and the elastic three-dimensional packing fully stirred and contacted and reacted. The purified water is di...

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Abstract

The present invention provides a surface micro-reoxygenation biological pretreatment reactor and a method thereof, which relate to the technical filed of sewage processing. By aiming at the problem that current plug-flow or up-flow processing methods are difficult to reach ideal sewage processing effect, several baffle plate members are arranged in a housing of a reactor in a parallel mode at intervals, the baffle plate member comprises a diversion baffle plate and a deflection baffle plate which are vertically arranged at intervals, and the diversion baffle plate and the deflection baffle plate are corrugated plates; a top of the diversion baffle plate is parallel with the top of a sidewall of the reactor, a bottom and the bottom of the reactor are arranged at intervals, the bottom of thedeflection baffle plate is connected with the bottom of the reactor, the top is lower than the top of the diversion baffle plate, and a diversion chamber and an anaerobic hydrolysis reaction chamberwhich are communicated and formed by the baffle plate members are communicated with atmosphere. The method is characterized in that an elastic stereo filling material is arranged in the reactor; sewage passes through the diversion chamber and the anaerobic hydrolysis reaction chamber formed by the baffle plate members in order, the sewage and the elastic stereo filling material are fully stirred and contacted for a reaction, and a purified water body is discharged out of the reactor from a water outlet.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a biological pretreatment reactor and method for surface micro-reoxygenation. Background technique [0002] In recent years, with the development of chemical fiber fabrics and dyeing technology, more and more organic substances that are difficult to biodegrade, such as PVA size, rayon alkali hydrolyzate (phthalic acid, etc.), new dye auxiliaries, etc., have entered the printing and dyeing industry in large quantities. In wastewater, the biodegradability of printing and dyeing wastewater is further reduced, resulting in a decline in the COD removal rate of the original biological treatment system. [0003] Anaerobic hydrolysis acidification is a commonly used treatment technology for refractory organic wastewater. Common anaerobic hydrolysis reactors mainly include ordinary plug-flow type and up-flow type. Ordinary plug-flow anaerobic reactors have less water flow distur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/28C02F3/30
CPCC02F3/28C02F3/284C02F3/286C02F3/301
Inventor 朱五星范勇赵明王由好万明辉黄浩华
Owner SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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