Novel external suspension photocatalysis membrane water purifier

A technology of membrane water purifier and photocatalytic reactor, applied in chemical instruments and methods, water treatment of special compounds, light water/sewage treatment, etc., can solve problems such as low catalytic efficiency, small amount of treated water, and membrane pollution, and achieve High catalytic efficiency, reduce water turbidity, and ensure catalytic efficiency

Pending Publication Date: 2019-01-11
ZHEJIANG TONGJI VOCATIONAL COLLEGE OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, provide a new type of external suspended photocatalytic membrane water purifier, and solve the problem of low catalytic efficiency, high energy consumption, small amount of treated water and The serious problem of membrane fouling

Method used

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  • Novel external suspension photocatalysis membrane water purifier
  • Novel external suspension photocatalysis membrane water purifier

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] In this embodiment, water from a reservoir in a certain area is taken, and its water quality index is that TOC is 2.5 ± 0.3 mg / L, turbidity is 1.5-2, pH is 6.25-6.5, and the total number of bacteria is 10 3 CFU / mL, processed under the following conditions:

[0044] Fill the photocatalytic reactor with photocatalyst concentration: 1g / L;

[0045] Photocatalytic reactor average residence time (HRT): 30min;

[0046] After being treated by the purifier of the present invention, the effluent water quality index obtained at the water outlet is 0.5 ± 0.05 mg / L for TOC, 0.1 for turbidity, and 0 for the total number of bacteria; the average removal rate of TOC is 80%, and the average removal rate of turbidity is 95%. %, the bacteria removal rate is 100%.

Embodiment 2

[0048] Get the tap water in this area in this embodiment, its water quality index is COD Mn is 1.8±0.5mg / L, TOC is 2.1±0.2mg / L, the total number of bacteria is 70CFU / mL, and the treatment is carried out under the following conditions:

[0049] Fill the photocatalytic reactor with photocatalyst concentration: 1g / L;

[0050] Photocatalytic reactor average residence time (HRT): 30min;

[0051] After being treated by the purifier of the present invention, the effluent water quality index of the water outlet is COD Mn is 0.5±0.05mg / L, TOC is 0.3±0.02mg / L, and the total number of bacteria is 0; COD Mn The average removal rate is 73%, the average removal rate of TOC is 86%, and the removal rate of bacteria is 100%.

Embodiment 3

[0053] In this embodiment, the commercial humate is used as water to be treated, the TOC is 4.0±0.2mg / L, the pH is about 7.0, and the UV 254 0.3±0.05cm -1 , processed under the following conditions:

[0054] Fill the photocatalytic reactor with catalyst concentration: 1g / L;

[0055] Photocatalytic reactor average residence time (HRT): 30min;

[0056] After being treated by the purifier of the present invention, the effluent water quality index obtained at the water outlet is that TOC is 1.28 ± 0.1 mg / L, UV 254 0.03±0.01cm -1 ; The average removal rate of TOC is 68%, UV 254 The average removal rate is 90%.

[0057] In summary, under the premise of maintaining high catalytic efficiency, the present invention can lower operating pressure, reduce membrane fouling, enhance its catalytic efficiency and membrane anti-fouling ability, and reduce operating energy consumption; and, the water purifier of the present invention is used for micro For the treatment of polluted water an...

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Abstract

The invention discloses a novel external suspension photocatalysis membrane water purifier. The novel external suspension photocatalysis membrane water purifier comprises a water inlet tank, a water pump, a first filter, an active carbon filter, a photocatalysis reactor, a membrane separation system, an activation mineralization device, a reflux pump, a suction pump, solenoid valves 1-6, and an air compressor; the water inlet tank is connected with the water pump, the first filter, and the active carbon filter successively; the active carbon filter is connected with the photocatalysis reactor;the photocatalysis reactor is connected with the 6th solenoid valve, and then is connected with the membrane separation system; a first water outlet is connected with a three-way valve, and the suction pump; a water suction pump is connected with the 5th solenoid valve, and is connected with the activation mineralization device; a second water outlet is connected with the 3th solenoid valve, andis connected with the photocatalysis reactor; an aeration pipe is arranged in the photocatalysis reactor; a micropore aeration mechanism is arranged in the membrane separation system, and is connectedwith the air compressor through a pipeline. The novel external suspension photocatalysis membrane water purifier is capable of enhancing catalytic efficiency and membrane anti-pollution capacity, reducing operation energy consumption, is large in water processing amount, and possesses water activation and mineralization functions.

Description

technical field [0001] The invention relates to a novel external suspended photocatalytic membrane water purifier, which belongs to the technical field of water purifiers. Background technique [0002] Water is the source of life and the foundation of life. Water is ubiquitous in the human body and is closely related to human health. However, with the rapid development of modern industrial and agricultural production, water resources in the human living environment are in short supply, and drinking water is seriously polluted. The water purification process can no longer meet people's requirements for the quality of drinking water, so we must transform and develop new technologies on the basis of traditional processes. [0003] Photocatalytic oxidation technology is a new and promising water treatment technology, which uses the hydroxyl radical ( OH) and peroxyl radical ( O 2 - ) Mineralize toxic and harmful macromolecular organic substances in water into nontoxic and harm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/08C02F101/30
CPCC02F1/001C02F1/32C02F1/44C02F1/68C02F7/00C02F9/00C02F2101/30C02F2303/04C02F2303/14C02F2305/10
Inventor 程静刘进宝楼骏郑荣伟张晨辰刘述丽王雪金斌斌
Owner ZHEJIANG TONGJI VOCATIONAL COLLEGE OF SCI & TECH
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