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Apparatus for the purification of liquid, method for washing a hollow-fibre filter and use of the method for washing a hollow-fibre filter

A fiber filter and liquid purification technology, applied in chemical instruments and methods, fixed filter element filters, filtration separation, etc., can solve problems such as reduced service life, limited use of membrane technology, and limited content of soluble polymeric organic substances

Inactive Publication Date: 2011-06-15
艾库弗拉有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main problem arising in the use of membrane technologies (reverse osmosis, microfiltration and ultrafiltration) is the limitation of the content of soluble high molecular organic substances in the purified water
These impurities substantially limit the use of membrane technology as the useful life of the membranes used is substantially reduced

Method used

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  • Apparatus for the purification of liquid, method for washing a hollow-fibre filter and use of the method for washing a hollow-fibre filter
  • Apparatus for the purification of liquid, method for washing a hollow-fibre filter and use of the method for washing a hollow-fibre filter
  • Apparatus for the purification of liquid, method for washing a hollow-fibre filter and use of the method for washing a hollow-fibre filter

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Embodiment Construction

[0029] The liquid purification plant comprises: a device 1 for supplying the liquid to be purified, an electrocoagulation unit 2, a hollow fiber filter 3, a reverse osmosis unit 4, a collection container 5, a discharge device 6 for outputting the purified liquid, these devices Continuously install ( figure 1 ).

[0030]The output of the device 1 for supplying the liquid to be purified is connected to the input of the electrocoagulation unit 2 . The electrocoagulation unit 2 is a system of electrodes, which can be provided in the form of plates arranged in parallel or embedded concentric tubes, arranged to apply a constant / pulsed voltage of 100V. The anode is made of aluminum. The cathode can be made of aluminum and inert materials such as stainless steel. When both electrodes are made of aluminum, an AC voltage with polarity change is applied for not less than 10-4 seconds to dissolve them uniformly. The current level can be adjusted according to the degree of water pollut...

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Abstract

The present group of inventions relates to devices for the purification of liquids and can, in particular, be utilised for the purification of drinking water and waste waters, including sea, river, lake and well water, by removing polar and non-polar organic substances, ions of heavy metals, microorganisms and a significant amount of salts. The group of inventions can be used both for the collection and purification of liquid from open sources and non-pressurised vessels, and also for the collection and purification of liquid, particularly drinking water, from domestic drinking water lines. An apparatus for the purification of liquid comprises means for supplying liquid to be purified, an electro-coagulation unit, a hollow-fibre filter with liquid backwash, a reverse osmosis unit, a collecting vessel, a non-return valve and means for drawing off the purified liquid. The hollow-fibre filter is backwashed first with liquid and then with a pressurised mixture of liquid and air, fed from the collecting vessel. While liquid is being pumped from the collecting vessel, atmospheric air is fed into the collecting vessel using the non-return valve. The proposed water purification apparatus makes it possible to extend the service life of the membranes used in the apparatus, and furthermore the system for the purification of liquid permits assembly in the form of a compact apparatus with a weight of a few kilograms, so that it can be carried by hand.

Description

technical field [0001] The group claimed in the present invention relates to fluid purification equipment and can be used mainly for the purification of drinking water and waste water (including sea water, river water, lake water) by removing polar and non-polar organic substances, heavy metal ions, microorganisms and large amounts of salt and well water). The group of the invention can be used for the entry and purification of liquids from open sources and non-pressurized containers, and also for the entry and purification of liquids (mainly drinking water) from domestic water mains. Background technique [0002] In the prior art, liquid purification systems based on a combination of membrane filtration and reverse osmosis are known. Typically, such systems are provided with a backwash mode that allows periodic removal of a layer of filter particles from the membrane surface to keep its permeability constant. [0003] Furthermore, systems for removing dissolved organic ma...

Claims

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Application Information

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IPC IPC(8): C02F9/02C02F1/44C02F1/463B01D29/66B01D65/02
CPCC02F2101/20C02F1/441B01D61/58B01D61/025B01D2321/185C02F2101/30C02F2303/16C02F2303/04B01D2311/04C02F1/463B01D65/02B01D2321/04C02F2103/08Y02A20/131B01D2311/2642
Inventor 奥列格・弗拉基米罗维奇・杜博夫奥列格・叶夫根耶维奇・萨姆索诺夫约瑟夫・利沃维奇・施密特
Owner 艾库弗拉有限责任公司
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