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Algae-containing wastewater high-efficiency combined purification method

A composite and waste water technology, which is applied in chemical instruments and methods, energy waste water treatment, flotation water/sewage treatment, etc., can solve the problems of difficult algae-containing waste water treatment, achieve good effluent quality, increase safety, and efficiently remove The effect of algae rate

Active Publication Date: 2014-10-01
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to address the deficiencies in the prior art, on the basis of summarizing various algae removal technologies, to propose a high-efficiency compound algae-containing wastewater purification method with high algae removal efficiency, low energy consumption, environmental protection and energy saving, in order to solve the problem of algae-containing wastewater The difficult problem of algae wastewater treatment provides a new technical support

Method used

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  • Algae-containing wastewater high-efficiency combined purification method

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Embodiment 1

[0027] Embodiment 1 A kind of high-efficiency composite purification method of algae-containing wastewater

[0028] A high-efficiency composite purification method for algae-containing wastewater, comprising the following steps:

[0029] (1), first filter the algae-containing wastewater through the filter chamber to remove most of the suspended solids and some algae;

[0030] (2), step (1) filtered gained water enters the plasma reaction chamber, and air is passed into the plasma reaction chamber according to the volume ratio of air and water in the ratio of 10:1, through the needle-plate reaction in the plasma reaction chamber The device oxidizes and kills algae on the water body; on the one hand, the air introduced provides the air required for the plasma discharge, and on the other hand provides the gas for the next step of air flotation, and the air flow rate is 50-200L / h.

[0031] (3), the water body after step (2) oxidizes and kills algae enters the flocculation chamber...

Embodiment 2

[0035] Embodiment 2 The purification system supporting the purification method of Embodiment 1

[0036] See attached figure 1 A high-efficiency composite purification system for the treatment of algae-containing wastewater is shown. Its main body is a purification container. The container consists of a filter chamber 1, a plasma reaction chamber 2, a flocculation chamber 3, and a water collection chamber from bottom to top. composition. A filter is provided between the filter chamber 1 and the plasma reaction chamber 2, and a screen 28 is provided between the plasma reaction chamber and the flocculation chamber; the purification container is provided with a water inlet at the filter chamber, and an outlet at the water collection chamber. Shuikou.

[0037] Such as figure 1 As shown, the bottom of the side wall of the filter chamber 1 is provided with a water inlet 7 and a slag discharge port 8, and a filter screen 9 is provided at the top, and the mesh number of the filter s...

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Abstract

The invention relates to an algae-containing wastewater high-efficiency combined purification method which is characterized by comprising the following steps: (1) filtering the algae-containing wastewater through a filter chamber to remove most suspended substances and partial algae; (2) sending the filtered water body into a plasma reaction chamber, introducing air into the plasma reaction chamber, and carrying out oxidation algae removal on the water body by using a needle-plate reactor in the plasma reaction chamber; (3) sending the water body subjected to oxidation algae removal into a flocculating chamber, and flocculating to form a separable floccule, wherein the floccule is combined with bubbles in the water body to form a floatation body with smaller specific gravity than water, and the floatation body floats to the water surface to condense into scum; and removing the scum to obtain the purified water body. The method has the advantages of high algae removal efficiency, low reagent consumption and favorable effluent water quality. By adopting the plasma discharge for oxidization and algae removal, the method greatly lowers the emission of malodorous gas, and reduces the pollution of the malodorous gas to the atmospheric environment. The system has high algae removal rate and favorable removal effect for SS (suspended sediment) and CODcr (chemical oxygen demand).

Description

technical field [0001] The invention relates to algae removal technology, which belongs to the technical field of environmental protection, in particular to a high-efficiency compound purification method suitable for the treatment of algae-containing wastewater. Background technique: [0002] In recent years, with the rapid development of social economy, the discharge of a large number of chemical substances has made the eutrophication of the water body increasingly serious, and the algae blooms in large numbers, resulting in a decrease in water transparency, a decrease in dissolved oxygen, and a continuous deterioration of water quality. The bottom of the water body is hypoxic, resulting in Some fish suffocate to death. Among them, some algae can produce algal toxins, which also pose a threat to the safety of drinking water for aquatic organisms and humans and animals. Some algae can produce peculiar smells, which affect the living environment of surrounding residents. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04C02F1/72C02F1/24C02F1/52
CPCY02W10/37
Inventor 冯景伟朱丹陈培刘润龙江林陈君杨
Owner HEFEI UNIV OF TECH
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