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AEC electric flocculation waste water treatment system

A wastewater treatment system, electrocoagulation technology, applied in the direction of gaseous effluent wastewater treatment, water/sewage treatment, neutralized water/sewage treatment, etc., can solve the difficulty of high hardness wastewater treatment, poor suspension treatment effect, secondary product Pollution and other issues to achieve the effect of promoting the promotion of environmental protection technology, reliable treatment effect, and low operating cost

Inactive Publication Date: 2017-09-15
CHENGDU FILTRASCALE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide an electrocoagulation wastewater treatment system in order to overcome the defects in the prior art that the wastewater treatment system occupies a large area, has a poor treatment effect on suspended solids, is difficult to treat high-hardness wastewater, and has secondary pollution from products in the purification process. system

Method used

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  • AEC electric flocculation waste water treatment system
  • AEC electric flocculation waste water treatment system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Such as figure 1 The shown electrocoagulation wastewater treatment system is sequentially connected to the conductive alkaline additive dosing subsystem, electrocoagulation subsystem, sedimentation area, membrane treatment subsystem and water storage tank, and the alkaline additive dosing subsystem is divided into It is a lime slurry dosing area and a soda ash dosing area. Each of the above-mentioned subsystems and sedimentation areas has a wastewater treatment tank (pool), and the wastewater flows through the above-mentioned subsystems and sedimentation areas in turn for treatment.

[0044] Add lime slurry and soda ash to the lime slurry dosing area and soda ash dosing area to neutralize the acidic components in the wastewater and make the pH of the wastewater ≥ 7. At the same time, an aeration pipeline is installed at the bottom of the wastewater treatment tank of the alkaline additive dosing subsystem, electrocoagulation subsystem, and membrane treatment subsystem, a...

Embodiment 2

[0054] Adopt the device system described in embodiment 1 to process desulfurization waste water, will 1m 3 Add lime to the waste water, and carry out sufficient aeration to make the pH value reach 12, remove the carbonate hardness in the water, add soda ash for a full reaction, remove the non-carbonate hardness, and remove the sludge to make the waste water enter the electrocoagulation reaction The reactor reacts for 10 minutes, then enters the vertical flow sedimentation tank, adjusts the pH to 6-9 by adding acid, and finally passes through the membrane treatment system to effluent. The wastewater before and after treatment was inspected, and the detailed test results of various indicators are shown in Table 1.

[0055] Table 1 Wastewater test results

[0056] project

unit

Wastewater before treatment

Treated wastewater

HG

mg / L

0.75

0.04

Total Cadmium

mg / L

0.63

0.08

total chromium

mg / L

0.12

0.1

ars...

Embodiment 3

[0061] The device system described in Example 1 is used to treat the desulfurization wastewater, and a certain company 2m 3 Add 7kg of lime to the coal washing and desulfurization wastewater, and carry out sufficient aeration to make the pH value reach 11. Then, add 15kg of soda ash to fully react. After the reaction is complete, the sludge-removed waste water enters the electroflocculation reactor. In the electroflocculation reactor, an aluminum plate is used as a sacrificial plate, and a direct current of 50A and 10V is applied to react for 12 minutes. The aluminum plate is electrolyzed to generate aluminum ions for the flocculation reaction of the waste water. Then the wastewater enters the vertical flow sedimentation tank, and hydrochloric acid is added to adjust the pH to 8. The impurities after natural precipitation are collected by the sludge collection cone and discharged from the sludge discharge valve at the bottom of the sedimentation area. The wastewater in the up...

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Abstract

The invention discloses an electric flocculation waste water treatment system. The system comprises an alkaline additive feeding subsystem, an electric flocculation subsystem, a precipitation area, a membrane treatment subsystem and a water storage tank which are sequentially connected and conducted, wherein the alkaline additive feeding subsystem is used for adding alkaline additive ingredients to to-be-treated waste water; the electric flocculation subsystem has a sacrificial anode which dissolves out ions under the action of direct currents to perform flocculation function on suspended matter, floating matter or pollutants in a dissolved state in the waste water; the precipitation area comprises an acid adding device used for adding an acid reagent to a solution; the membrane treatment sub system is used for filtering the waste water passing through the precipitation area; the waste storage tank is used for receiving the waste water treated by the membrane treatment subsystem. The electric flocculation waste water treatment system further comprises an aeration subsystem which comprises an aeration fan as well as pipelines connected to the alkaline additive feeding subsystem, the electric flocculation subsystem and the membrane treatment subsystem, and the aeration subsystem performs aeration on the waste water through the aeration fan connecting pipelines.

Description

technical field [0001] The invention relates to an electrochemical wastewater treatment system, in particular to an AEC electrocoagulation wastewater treatment system, which belongs to the technical field of wastewater treatment. Background technique [0002] With the rapid increase of human industrial activities and population, environmental problems are becoming more and more serious. Among the environmental problems, the problem of water pollution is the most important. If one liter of untreated waste water flows into the groundwater, it will pollute the groundwater over several kilometers around. Therefore, it is becoming more and more important to treat wastewater and meet discharge or reuse standards. [0003] At present, the wastewater treatment methods that have been developed and applied mainly include chemical methods, biological methods, electrocoagulation methods, etc., including chemical precipitation, ion exchange, membrane separation, activated carbon and sil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/06C02F1/463C02F103/18
CPCC02F1/444C02F1/46109C02F1/463C02F1/66C02F5/06C02F9/00C02F2001/007C02F2001/46133C02F2001/46152C02F2103/18C02F2201/46125C02F2201/4617
Inventor 欧群飞欧培洲徐建洪张杨孙明娟黄勇龚明松
Owner CHENGDU FILTRASCALE TECH
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