Flotation built-in ceramic membrane water purification system and method

A ceramic membrane and water purification technology, applied in chemical instruments and methods, flotation water/sewage treatment, water/sewage treatment, etc., can solve problems such as limited removal efficiency and threats to the health of urban residents, and achieve short implementation period, The effect of saving equipment investment, saving space and occupying land

Active Publication Date: 2018-02-09
TIANJIN SEA WATER DESALINATION & COMPLEX UTILIZATION INST STATE OCEANOGRAPHI
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  • Claims
  • Application Information

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Problems solved by technology

[0004] At present, most of the water plants in my country still adopt the traditional coagulation, sedimentation, filtration and disinfection water treatment process, which is mainly suitable for the treatment of uncontaminated raw water. The remova

Method used

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  • Flotation built-in ceramic membrane water purification system and method

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Embodiment 1

[0027] A water purification method with a built-in ceramic membrane in air flotation, comprising the following steps:

[0028] 1) Use the above-mentioned air flotation built-in ceramic membrane water purification system;

[0029] 2) Filtration stage: the effluent A of the raw water tank 1 is pressurized by the raw water pump 2 and enters the tubular mixer 3, mixed with the coagulant flowing out of the dosing device 4, and then enters the flocculation zone 6 in the air flotation tank 5 for flocculation and maturation; After the water flows out from the bottom of the flocculation zone 6, it enters the reaction zone 7 after contacting the dissolved air return water sprayed from the nozzle 30, and then enters the separation zone 9 through the baffle plate 8; Primary separation, the scum in the upper part of the separation area 9 is scraped by the slag scraper 10, after crossing the high overflow weir 11, it enters the slag discharge tank 12, and then is discharged from the scum di...

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Abstract

The invention discloses a flotation built-in ceramic membrane water purification system and method. The system comprises a raw water tank 1, a raw water pump 2, a tube mixer 3, a dosing device 4 and aflotation tank 5; the flotation tank 5 comprises a flocculation zone 6, a reaction zone 7 and a separation zone 9; the lower part of the reaction zone 7 is provided with a nozzle 30; a slag scraper 10 is arranged at the upper part in the separation zone 9; a submerged ceramic membrane module 17 is arranged at the lower part in the separation zone 9; a backwash drain tank 15 and dump tank 12 are arranged at the middle part in the separation zone 9. In the system provided by the invention, the submerged ceramic membrane module is built in the flotation tank, thereby saving space and reducing equipment investment. By replacing the traditional 'return pump + air compressor + dissolved air tank' mode with a 'multiphase flow reflux pump + solubilizer' mode, the system configuration is simpler,the energy consumption is lower and the occupied area is smaller. The submerged ceramic membrane module utilizes a multiphase flow reflux pump for water backwashing of water and backwashing of gas andwater.

Description

technical field [0001] The invention belongs to the field of water purification, and in particular relates to a water purification system and method with an air flotation built-in ceramic membrane. Background technique [0002] Water is closely related to people's life and production. Urban water supply is an indispensable material basis for ensuring the life of residents and industrial production. In recent years, with the rapid development of my country's economy, the requirements for water quality safety and reliability are getting higher and higher. However, due to the lag in the prevention and control of water environmental pollution in my country, water pollution is quite serious, which has brought great challenges to conventional water purification systems. [0003] With the rapid development of industry and the continuous improvement of people's living standards, the discharge of industrial wastewater and domestic sewage in my country is increasing year by year, bu...

Claims

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Application Information

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IPC IPC(8): C02F9/04
CPCC02F1/24C02F1/44C02F1/5245C02F1/5281C02F2301/046
Inventor 吴水波沙学龙吴云奇胥建美刘筱昱潘春佑
Owner TIANJIN SEA WATER DESALINATION & COMPLEX UTILIZATION INST STATE OCEANOGRAPHI
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