Grading recycle device for electric flocculation and electric floatation purification bathing and washing wastewater

A technology of electric flotation and electric flocculation, applied in water/sewage multi-stage treatment, flotation water/sewage treatment, water/sewage treatment, etc. Content, treatment effect enhancement, separation effect

Inactive Publication Date: 2010-11-03
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] For the reuse of bathing and laundry wastewater, due to the absence of advanced treatment in the technology, the form of its reuse is greatly limited, and it is only used as water for flushing toilets

Method used

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  • Grading recycle device for electric flocculation and electric floatation purification bathing and washing wastewater
  • Grading recycle device for electric flocculation and electric floatation purification bathing and washing wastewater

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Embodiment Construction

[0038] see figure 1 , a water outlet filter 2 is set in the sump 1 to remove hair and larger suspended matter; the outlet water of the sump 1 is directly output through the three-way 3 as the front-end outlet, for example, it is directly connected to the water supply channel of the toilet tank 5 , for flushing the toilet 6; another way of the tee 3 is connected in series with the Venturi tube 8, the water outlet of the Venturi tube 8 is connected to the electrolytic cell 10, and the throat of the Venturi tube 8 communicates with the intake pipe with the filter cover 9, On the one hand, this structural form increases the oxygen content in the water, which is beneficial to the formation of OH; on the other hand, it increases the air content in the water, and strengthens the treatment effect of the electric float.

[0039] The electrolytic cell 10 is set as an iron-promoted double anodic oxidation unit, and is based on Ti / SnO 2 The anode 12 and the Fe anode 13 are located on bot...

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Abstract

The invention discloses a grading recycle device for electric flocculation and electric floatation purification bathing and washing wastewater, which is characterized in that one part of effluent from a wastewater collecting tank, passing through a tee joint, is used as front end effluent to be directly output, and the other path is serially connected with a Venturi tube, the wastewater outlet of the Venturi tube is connected with an electrolytic bath, the throat tube of the Venturi tube is communicated with an air inlet tube with a filter casing; the electrolytic bath is set to be an iron promoted dual-anodic oxidization unit which has a structure that a Tl/SnO2 anode and an Fe anode are respectively arranged at two sides of a cathode to form a combined anode, and the cathode adopts an air diffusion electrode; the wastewater outlet of the electrolytic bath is serially provided with a two-stage filtering unit, a primary filtering chamber of the two-stage filtering unit is provided with a primary wastewater outlet valve, and a secondary filtering chamber of the two-stage filtering unit is provided with a secondary wastewater outlet valve. The invention can effectively reduce or remove surface activating agents and other organic pollutants in washing/bathing wastewater to ensure that the bath/washing wastewater is recycled by stages.

Description

technical field [0001] The invention relates to a device for purifying and recycling bath and laundry wastewater, in particular to a method and device for purifying and recycling bath and laundry wastewater by using electrocoagulation-electric floatation. Background technique [0002] The scarcity of water resources is an indisputable fact. Recycling can effectively save water, but effective wastewater treatment methods are needed. [0003] Current status of water treatment: [0004] Electrochemical water treatment is an advanced oxidation technology that uses an external electric field to achieve the purpose of removing pollutants in wastewater or recovering useful substances through electrochemical or physical processes in an electrochemical reactor. The electrochemical method of wastewater treatment has unique features, such as: it can be flexibly combined with other technologies, without adding oxidants, flocculants and other chemicals, its equipment is small in size, s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/06C02F1/463C02F1/465
Inventor 孙亚兵徐建华付玉玲邹婷李振玉陈颖缪虹王瑾瑜王惠英
Owner NANJING UNIV
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