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Waste water advanced purifying process and equipment thereof

A technology for deep purification and waste water, applied in water/sewage treatment, chemical instruments and methods, multi-stage water/sewage treatment, etc., can solve the problems of heavy burden, inability to oxidize organic molecules, etc., achieve simple structure, reduce burden, COD The effect of reducing the effect

Inactive Publication Date: 2009-03-04
谢明宗
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Problems solved by technology

Since the micro-electrolysis process can open the rings of organic macromolecules and linearize the molecular chains, but cannot oxidize organic molecules into simple molecules, this makes the burden of the Fenton stage still very heavy. Therefore, the use of micro-electrolysis-Fenton combined Although the reduction of COD has achieved a certain effect, it is still not ideal and needs to be further improved

Method used

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  • Waste water advanced purifying process and equipment thereof
  • Waste water advanced purifying process and equipment thereof
  • Waste water advanced purifying process and equipment thereof

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0017] refer to figure 1 , figure 2 , the waste water flows in from the bottom of the micro-electrolysis tower 1, and flows out from the top. An alloy filler 4 is placed in the micro-electrolysis tower 1. The alloy filler 4 is made up of carbon, iron, copper, aluminum, rare metals, wherein carbon, iron, The weight ratio of copper, aluminum and rare metal is 0.8-1:0.8-1:0.1:0.1:0.05. The alloy filler 4 can also be iron-carbon filler, and the weight ratio of iron-carbon is 0.8-1:0.8-1, preferably 0.8:1. Zero-valent iron and activated carbon form a primary battery in wastewater. Iron is used as the anode to oxidize and emit electrons spontaneously, which can open the ring of organic macromolecules, linearize molecular chains, cut chromophoric groups, and reduce COD. After a long time of use, the iron-carbon filler 4 will agglomerate, which will affect ...

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Abstract

The invention discloses a waste water advanced purification process with good effect of reducing chemical oxygen demand (COD). The process comprises the following three steps: (a) micro-electrolysis; (b) direct electrolysis and (c) advanced oxidation. The invention also discloses a waste water advanced purification device with simple structure and easy operation, which comprises a micro-electrolysis tower, an electro-oxidation settling tank and an advanced oxidation tower. The outlet of the micro-electrolysis tower is connected with the inlet of the electro-oxidation settling tank. The outlet of the electro-oxidation settling tank is connected with the inlet of the advanced oxidation tower. The electro-oxidation settling tank comprises an electrolytic bath, a flow-guide cylinder and a settling pond. An adsorption tower is arranged inside the advanced oxidation tower. The invention has the advantages of good COD reduction effect, simple structure and easy operation; and is widely used for the advanced purification of various kinds of waste water.

Description

technical field [0001] The invention relates to a waste water treatment process and its equipment, in particular to a waste water deep purification process and its equipment. Background technique [0002] In the process of deep purification and recycling of wastewater, membrane technology and its equipment are usually used, which have been reported in various literatures. As we all know, residual organic molecules in water are an important factor causing fouling and clogging of membrane modules. Therefore, the membrane product manuals of various companies will have requirements for the quality of membrane feed water, generally requiring COD≤3 (“COD” (chemicaloxygen demand) The Chinese translation is "chemical oxygen demand", which means: under certain conditions, when a certain strong oxidant is used to treat water samples, the amount of oxidant consumed is an indicator of the amount of reducing substances in the water.). The COD of various types of wastewater is generally ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/06C02F1/461C02F1/72
Inventor 袁伟光焦伟丽
Owner 谢明宗
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