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Method for identifying the type of clogging in a membrane filtration apparatus

A membrane filtration, enzyme solution technology, applied in chemical instruments and methods, applications, membrane technology and other directions, can solve problems such as limitations, and achieve the effect of saving the use of consumables

Inactive Publication Date: 2017-08-29
REALCO SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is particularly limited since the filter device has to be at least partially dismantled

Method used

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  • Method for identifying the type of clogging in a membrane filtration apparatus
  • Method for identifying the type of clogging in a membrane filtration apparatus
  • Method for identifying the type of clogging in a membrane filtration apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] In order to determine the nature of the clogging present in the ultrafiltration unit (300 liter volume) used for the extraction of lupine, the method of the invention was carried out according to the steps shown in the following table:

[0054]

[0055] A6 = Detergent base with chelating, dispersing and wetting agents

[0056] D2 = acid solution (phosphoric acid + nitric acid)

[0057] K4 = Aqueous solution of cellulase-based enzymes

[0058] K2 = alkaline solution (caustic soda + caustic potash)

[0059] K1 = protease-based enzyme aqueous solution

[0060] K3 = lipase-based enzyme aqueous solution

[0061] A3 = acid solution (HCl)

[0062] A4 = solution containing chelating agent and dispersing agent

[0063] n.a.* = Not Applicable: Loss of circulating flow for 10 consecutive minutes.

[0064] A first example carried out according to the method of the invention shows that the clogging of the ultrafiltration device is mainly due to the presence of particles wit...

Embodiment 2

[0067] In order to determine the nature of clogging present in nanofiltration and reverse osmosis filtration units (1500 liter volume) used for the treatment of milk, the method of the invention was carried out according to the steps shown in the table below:

[0068]

[0069] A6 = Detergent base with chelating, dispersing and wetting agents

[0070] R1 = Lactase-based enzyme aqueous solution

[0071] K2 = alkaline solution (1:1 ratio of caustic soda + caustic potash)

[0072] R2 = protease-based enzyme aqueous solution

[0073] R3 = lipase-based enzyme aqueous solution

[0074] A4 = solution containing chelating agent and dispersing agent

[0075] n.a.* = Not Applicable: Loss of circulating flow for 10 consecutive minutes

[0076] A second example performed according to the method of the present invention shows that the clogging of nanofiltration and reverse osmosis filtration devices is mainly due to the presence of particles with an affinity for lipase and protease. ...

Embodiment 3

[0079] In order to determine the nature of clogging present in a reverse osmosis filter unit (3000 liter volume) used for the treatment of milk, the method of the invention was carried out according to the steps shown in the table below:

[0080]

[0081] A6 = Detergent base with chelating, dispersing and wetting agents

[0082] R1 = Lactase-based enzyme aqueous solution

[0083] K2 = alkaline solution (1:1 ratio of caustic soda + caustic potash)

[0084] R2 = protease-based enzyme aqueous solution

[0085] R3 = lipase-based enzyme aqueous solution

[0086] A4 = solution containing chelating agent and dispersing agent

[0087] B = A composition comprising a detergent component and an enzyme component, wherein the detergent component contains chelating agents, dispersants and wetting agents, and the enzyme component contains polysaccharases, laccases and proteases

[0088] n.a.* = Not Applicable: Loss of circulating flow for 10 consecutive minutes.

[0089] The method a...

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Abstract

The present invention relates to a method for processing a membrane filtration apparatus having at least one fluid inlet and at least one fluid outlet, said method comprising a first step a) of supplying and flowing a first enzyme solution comprising at least one protease through said membrane filtration apparatus for a first predetermined time period, said first step a) being followed by a first measurement, performed at said at least one fluid inlet and / or said at least one fluid outlet of said membrane filtration apparatus, of at least one first parameter value making it possible to characterize the fluid flowing within said membrane filtration apparatus, said at least one first measured parameter value being compared to a value of the same parameter measured before step a).

Description

technical field [0001] The invention relates to a method for treating a membrane filtration device having at least one fluid inlet and at least one fluid outlet, said method comprising a first step a) of supplying a first enzyme solution containing at least one protease and making said first enzyme solution containing at least one protease flow through said membrane filtration device for a first predetermined period of time, after said first step a), at said at least one fluid inlet of said membrane filtration device And / or at the at least one fluid outlet, a first measurement is performed on at least one first value of a parameter characterizing the fluid flowing in the membrane filtration device, and the at least one first measurement value of the parameter is compared with the step a) Compare with previous measurements of the same parameter. Background technique [0002] This method of treating membrane filtration devices is known from the publication by Yu et al. (Enzym...

Claims

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Application Information

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IPC IPC(8): B01D65/06B01D65/10C11D3/386
CPCB01D65/02B01D65/10C11D3/386B01D2321/166C11D3/38618B01D65/109A23C7/02C11D3/38627C11D3/38636C11D3/38645
Inventor 戈登·布莱克曼塞巴斯汀·法斯特兹
Owner REALCO SA
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