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Chemical waste liquid purification treatment device integrating neutralization-precipitation-biomass treatment

A technology of biomass treatment and purification treatment, which is applied in the direction of sedimentation treatment, biological water/sewage treatment, neutralization water/sewage treatment, etc. It can solve the problems of inability to deal with heavy metal ions and the inability to adjust the pH of wastewater, so as to prevent microbial pollution, Effect of increasing processing capacity and increasing processing efficiency

Active Publication Date: 2022-04-26
HUNAN POLYTECHNIC OF ENVIRONMENT & BIOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the above-mentioned equipments have good water treatment performance, they are either aimed at the treatment of precipitated impurities, or improved for the stability of the device, and cannot adjust the pH of wastewater or handle heavy metal ions in wastewater. Therefore, it is necessary to develop a device that can both regulate A waste water treatment device that can handle heavy metal ions and precipitate impurities

Method used

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  • Chemical waste liquid purification treatment device integrating neutralization-precipitation-biomass treatment
  • Chemical waste liquid purification treatment device integrating neutralization-precipitation-biomass treatment

Examples

Experimental program
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Embodiment 1

[0032] A chemical waste liquid purification treatment device integrating neutralization-precipitation-biomass treatment, see Figure 1-2 , including a neutralization tank 1, a sedimentation tank 2 and a biological treatment device 3 which are connected in sequence through pipelines. The neutralization tank 1 is provided with a waste water inlet, which is used to feed chemical waste liquid, which can be acid liquid, alkali Common types of chemical waste liquids such as liquid, organic solution, heavy metal ion solution, chemical waste residue liquid, etc. If the viscosity of the chemical waste liquid is high, a waste liquid lifting pump can be installed at the waste water inlet, and the waste liquid can be lifted by the power of the waste liquid lifting pump. Inject into neutralization pool 1. The neutralization tank 1 is connected with an acid solution tank 4 and an alkali solution tank 5 through pipelines, and the acid solution tank 4 is used to hold acid solutions, such as h...

Embodiment 2

[0040] A chemical waste liquid purification treatment device integrating neutralization-precipitation-biomass treatment, basically the same structure as in Example 1, the difference is:

[0041] In order to improve the adsorption and precipitation function of the filter cake 312 and the function of loading biomass, the filter cake 312 is inlaid with a plurality of load balls 3121, and the load balls 3121 can be glass balls, activated carbon balls or zeolite molecular sieve balls, honeycomb balls, or polymer resin The balls, the surfaces of these loading balls 3121 are provided with a plurality of micropores or the surface is matte, and the micropores or gaps on the matte surface can help sedimentation and biomass accumulation.

Embodiment 3

[0043] A chemical waste liquid purification treatment device integrating neutralization-precipitation-biomass treatment, basically the same structure as in Example 1, the difference is:

[0044] In order to control the flow, between the neutralization tank 1 and the acid tank 4, between the neutralization tank 1 and the lye tank 5, between the neutralization tank 1 and the sedimentation tank 2, the bottom of the sedimentation tank 2 or the bottom of the side wall (not provided The position of the circulating water inlet) and the biological treatment device 3, between the biological treatment device 3 and the circulating water inlet, and the pipeline of the liquid outlet of the biological treatment device 3 are all provided with a valve 6. The water flow is controlled by valve 6.

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Abstract

The invention belongs to the technical field of wastewater treatment equipment, and in particular relates to a chemical waste liquid purification treatment device integrating neutralization-sedimentation-biomass treatment. The device includes a neutralization tank, a sedimentation tank and a biological treatment device connected in sequence through pipelines; the neutralization tank is provided with a waste water inlet, and the neutralization tank is connected with an acid tank and an alkali tank; the sedimentation tank is provided with Acid liquid inlet, lye inlet and feeding port; the biological treatment device includes a box, and the box is sequentially provided with a primary filter frame, at least one secondary filter frame, and a detachable filter plate from upstream to downstream. The primary filter frame includes a frame, a plurality of channels, and a plurality of filter cakes; a liquid suction pump is arranged on the pipeline connected between the sedimentation tank and the biological treatment device. The device of the invention realizes the multiple functions of regulating the acidity and alkalinity of waste water, treating heavy metal ions and precipitating impurities.

Description

technical field [0001] The invention belongs to the technical field of wastewater treatment equipment, and in particular relates to a chemical waste liquid purification treatment device integrating neutralization-precipitation-biomass treatment. Background technique [0002] Chemical wastewater includes acid, lye, heavy metal ionic liquid and other types. With the different emphasis on the ion content in the wastewater, the waste liquid has different properties. If it is pure acid or lye, it needs to focus on neutralization treatment. If it is Heavy metal ions need to focus on flocculation and microbial treatment. If the wastewater contains more solid impurities, it needs to focus on filtration treatment. Regardless of the treatment method, the final treated water should meet the discharge standards before it can be discharged, otherwise it will cause serious pollution to the environment. [0003] In the prior art, there is a need for a device system for chemical wastewater...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14C02F103/34
CPCC02F9/00C02F1/66C02F2209/06C02F1/5281C02F2001/007C02F1/5236C02F1/001C02F2103/34C02F3/34
Inventor 陈科李常郑百花蔡青毛颖
Owner HUNAN POLYTECHNIC OF ENVIRONMENT & BIOLOGY
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