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Coagulation-floatation and co-coagulation solid-liquid separation device and solid-liquid separation method

A solid-liquid separation, coagulation and air flotation technology, applied in chemical instruments and methods, flotation water/sewage treatment, water/sewage multi-stage treatment, etc. The problem of high cost can shorten the reaction separation time, reduce the water content and improve the function.

Inactive Publication Date: 2014-04-16
DALIAN JIAOTONG UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This traditional water treatment process takes a long time, and at the same time needs to set up a coagulation dosing unit and a coagulation reaction unit, resulting in the inability to form coagulation bubbles - floc coagulation, poor separation effect, large floor space, and equipment costs also high

Method used

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  • Coagulation-floatation and co-coagulation solid-liquid separation device and solid-liquid separation method

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Embodiment Construction

[0025] figure 1 Shown is a specific embodiment of the present invention, which is a coagulation-air-floatation co-coagulation solid-liquid separation device and its separation method used in the treatment of production sewage in a factory; It is characterized in that: the separation device is installed in the sewage tank by a sewage dosing mixing system, a multiphase medium pump dissolved gas system, a mixed reaction co-coagulation system and a co-coagulation solid-liquid separation device; The medicine mixing system consists of sewage pipe 2, sewage regulating valve 3, sewage vacuum pressure gauge 4, jet regulating valve A 14, sewage pump 19, pH regulator tank 9, PAC coagulant tank 5, PAM coagulant aid tank 13. The dosing main pipe 29, the medicine suction regulating valve 26, the medicine suction pipe 27, the dosing pump 28, and the sewage dissolved gas water main pipe 21 are composed. The bottom end of the sewage pipe 2 is inserted into the sewage tank 1, and the sewage pipe...

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Abstract

The invention belongs to sewage treatment equipment, and particularly relates to a coagulation-floatation and co-coagulation solid-liquid separation device and a solid-liquid separation method. The separation device is characterized by being formed by sequentially installing a sewage medicating-mixing system, a multiphase medium pump air-dissolving system, a mixed reaction co-coagulation system and a co-coagulation solid-liquid separation device at a sewage pool; the separation device disclosed by the invention is reasonable in design and compact in structure, and provided with an independent mixed co-coagulation reaction and co-coagulation solid-liquid separation system; moreover, optimization for a coagulation-floatation and co-coagulation-floatation separation process is realized, and a variable-water-level dross removal method is used for dross removal; and the separation device has the characteristics of being simple and convenient, small in overall floor area, less in investment, high in efficiency, and the like. The separation device and the separation method are especially suitable for treating colloids and suspended matters in sewage and waste water generated during production and life processes, so as to realize solid-liquid separation.

Description

Technical field [0001] The invention belongs to sewage treatment equipment, and specifically relates to a coagulation, air flotation and co-coagulation solid-liquid separation device and a separation method thereof. Background technique [0002] Air flotation water purification technology is an efficient and fast solid-liquid separation technology, which starts from mineral processing. This technology has attracted the attention of domestic and foreign scholars in the field of water treatment and has been rapidly developed. It has been widely used in water supply, especially at low temperatures. , Purification treatment of low turbidity, algae-rich water bodies, and treatment of urban sewage and industrial wastewater. The air flotation process can be divided into electrolytic condensation air flotation, air distribution air flotation and dissolved air flotation according to different bubble generation methods. The partial reflux pressure dissolved air flotation is the most common...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/04C02F1/24
Inventor 费庆志马飞许芝吴丹
Owner DALIAN JIAOTONG UNIVERSITY
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