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Air-flotation and membrane-filtration purification system

A purification system and air flotation membrane technology, applied in chemical instruments and methods, flotation water/sewage treatment, water/sewage multi-stage treatment, etc., can solve the problem of excessive pipelines, valves, small load resistance, and land occupation Large area and other problems, to achieve the effect of high filtration accuracy, improve load resistance capacity, and short backwash cycle

Inactive Publication Date: 2015-03-11
大连宏博水科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional ultrafiltration membrane filtration technology has too many pipelines and valves, complex control, troublesome maintenance, easy leakage of the system, and a large footprint
Now the submerged membrane filtration technology is gradually developed and applied. The ultrafiltration membrane is made into several components and placed in a pool, but there is a small load resistance capacity. High disadvantage

Method used

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  • Air-flotation and membrane-filtration purification system
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  • Air-flotation and membrane-filtration purification system

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Embodiment Construction

[0057] Such as figure 1 , figure 2 , image 3 and Figure 4 The shown air flotation membrane filtration purification system includes: a filter tank body 27 surrounded by an outer wall, a dissolved air flotation device 28 and a submerged membrane filter device 29 arranged inside the filter tank body 27;

[0058] The interior of the filter body 27 is divided into a water inlet buffer zone 2, a water inlet distribution area 4, an air flotation contact area 6, an air flotation separation area and a membrane filtration water output area 7 by a partition wall;

[0059] The middle interval between the inlet buffer zone 2 and the inlet water distribution area 4 is the inlet water distribution weir 3;

[0060] The outer wall of the filter tank body 27 is provided with a water inlet pipe 1 for communicating with the water inlet buffer zone 2;

[0061] The water inlet distribution area 4 communicates with the air flotation contact area 6 through the water inlet distribution hole 5 a...

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Abstract

The invention relates to water conditioning constructional work in a water purification plant and particularly relates to an air-flotation and membrane-filtration purification system which is divided into a water buffering region, a water distribution region, an air-flotation contact region and an air-flotation separation and membrane-filtration water outlet region, wherein a micro-bubble generating device and a gas-solublized water conveying pipeline are connected and distributed in the air-flotation contact region; the air-flotation separation and membrane-filtration water outlet region is provided with a conical mud bucket, a supporting beam and an immersed membrane module from bottom to top; a slag scraping machine is capable of walking on a guide rail distributed on the side wall of a pool; a slagging groove is formed on a side wall opposite to the water inlet of the pool. The air-flotation and membrane-filtration purification system has the advantages of organically combining an air-flotation process with an ultrafiltration membrane filtration process, being capable of treating low-turbidity or high-algae water, and meanwhile being small in occupied space, simple in structure, low in civil engineering construction cost, high in load resistance capacity, low in auxiliary water ratio, low in operating cost and simple in automatic control.

Description

technical field [0001] The invention relates to a water quality treatment device for a water purification treatment plant and a reclaimed water reuse plant, and in particular provides an air flotation membrane filtration purification system. Background technique [0002] At present, when the turbidity of the water source of the water purification plant is low or the algae is high, the technology of air flotation and filtration is often used. Existing water plants often build separate air flotation tanks, using the partial reflux dissolved air flotation method. The bottom of the air flotation separation zone of the air flotation tank is equipped with a perforated water collection pipe to collect water, and the upper part is an empty tank, which is a serious waste of space. The filtration process after air flotation often adopts sand filter or ultrafiltration membrane filtration. The civil structure of the sand filter is relatively complex and occupies a large area. The filter...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/08C02F1/44C02F1/24
Inventor 秦文跃李晓岚佐继新夏广平周建学徐俊杰
Owner 大连宏博水科技有限公司
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