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A water washing method epoxy resin wastewater treatment system and process

A water-washing epoxy resin and wastewater treatment system technology, which is applied in the direction of water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problem of substandard discharge, poor treatment effect, and treatment cost High-level problems, to achieve good results, discharge standards, and good treatment effects

Active Publication Date: 2015-11-25
NANJING GREEN ISLAND ENVIRONMENTAL ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide a low-cost, good treatment effect, up-to-standard discharge and no pollution to the above-mentioned defects in the prior art, such as the high cost of epoxy resin wastewater treatment by water washing method, poor treatment effect and substandard discharge. Water-washing epoxy resin wastewater treatment system and process for secondary pollution

Method used

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  • A water washing method epoxy resin wastewater treatment system and process
  • A water washing method epoxy resin wastewater treatment system and process
  • A water washing method epoxy resin wastewater treatment system and process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] A kind of washing method epoxy resin wastewater treatment system, such as figure 1 As shown, it includes sludge tank, conditioning tank, filter press room and aeration regulating tank connected in turn, first-level advanced oxidation sedimentation tank, hydrolysis anaerobic tank, first-level aerobic CBR tank, intermediate sedimentation tank, and second-level Advanced oxidation sedimentation tank, secondary aerobic CBR tank, effluent sedimentation tank and Parshall tank, and the water inlet of the above-mentioned aeration adjustment tank is connected with concentrated water collection tank, washing water collection tank and rain sewage tank.

[0054] The sludge return port of the above-mentioned intermediate sedimentation tank is connected with the above-mentioned primary aerobic CBR pool through the sludge return pipeline; The sewage outlet of the CBR tank and the secondary aerobic CBR tank and the sludge outlet of the intermediate sedimentation tank are connected to th...

Embodiment 2

[0069] This embodiment also provides a water-washing epoxy resin wastewater treatment system, which is basically the same as the water-washing epoxy resin wastewater treatment system in Example 1. The difference between the two is: (1) in the above-mentioned exposure The first Fenton reagent dosing device and the first flocculant dosing device are installed between the air conditioning tank and the first-level advanced oxidation sedimentation tank;

[0070] (2) A second Fenton reagent dosing device and a second flocculant dosing device are installed between the above-mentioned intermediate sedimentation tank and the secondary advanced oxidation sedimentation tank;

[0071] (3) A third flocculant dosing device is installed between the above-mentioned secondary aerobic CBR tank and the effluent sedimentation tank;

[0072] (4) A fourth flocculant dosing device and a decolorizing agent dosing device are installed between the above-mentioned effluent sedimentation tank and the Par...

Embodiment 3

[0077] This embodiment is basically the same as Embodiment 1, the difference between the two is that: the above-mentioned secondary aerobic CBR pool adopts intermittent aeration mode, and after 6 hours of aeration, it is left to stand still for 4 hours.

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Abstract

The invention discloses a water washing process epoxy resin wastewater treatment system and a technology thereof. The treatment system comprises a sludge pool, a modifying tank, a filter press room, and an aeration equalizing pool, a primary high-grade oxidation sedimentation pool, a hydrolysis anaerobic pool, a primary aerobic CBR pool, an intermediate sedimentation pool, a secondary high-grade oxidation sedimentation pool, a secondary aerobic CBR pool and a discharged water sedimentation pool which are sequentially mutually connected; the sludge return hole of the intermediate sedimentation pool is connected with the primary aerobic CBR pool; and the sludge outlets of the primary high-grade oxidation sedimentation pool, the hydrolysis anaerobic pool, the primary aerobic CBR pool, the intermediate sedimentation pool, the secondary high-grade oxidation sedimentation pool, the secondary aerobic CBR pool and the discharged water sedimentation pool are respectively connected with the inlet of the sludge pool, and the outlet of the sludge pool, the modifying tank and the filter press room are sequentially connected. The water washing process epoxy resin wastewater treatment system and the technology thereof have the advantages of low cost, good treatment effect, standard reaching of discharged water, and no secondary pollution.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a water-washing epoxy resin wastewater treatment system and process. Background technique [0002] Epoxy resin production wastewater by washing method has the characteristics of high temperature, high salt, and high COD, and direct discharge will have an impact on the water body and the surrounding ecological environment. [0003] Most of the existing water-washing epoxy resin wastewater treatment processes, such as: [0004] (1) ① Production of mother liquor wastewater → regulating tank → aging resin sedimentation tank → multi-effect evaporation → crystallization and separation [0005] ② Washing wastewater → coagulation and sedimentation → neutral adjustment → anaerobic → secondary surface exposure → tower filtration → NaClO oxidation → discharge [0006] (2) Production wastewater→oxidative coagulation→biological iron method→two-stage biological contact oxidati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14
Inventor 李家祥王亚丹江葱
Owner NANJING GREEN ISLAND ENVIRONMENTAL ENG