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Method for optimization of activated carbon

A technology of activated carbon and activated carbon column, which is applied in the preferred field of granular activated carbon, can solve the problems of short detection period and no consideration of the strength of activated carbon, etc., and achieve clear and intuitive results

Inactive Publication Date: 2018-11-30
TONGJI UNIV +1
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Problems solved by technology

[0003] The current carbon selection methods are mainly static adsorption method, physical property comparison method, micro-column rapid penetration method, etc., but the above methods have the following shortcomings: the detection period is short, and only the physical adsorption capacity of granular activated carbon is tested; most of the detection uses water distribution, There is a large gap with the actual water quality to be treated; the hydraulic conditions are quite different from the actual production conditions of the water purification plant; the strength of activated carbon is not considered
Therefore, the current carbon selection method needs to be improved

Method used

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  • Method for optimization of activated carbon

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Embodiment 1

[0039] Such as figure 1 Shown, a kind of method of preferred granular activated carbon, it specifically comprises the following steps:

[0040] Step 1, according to " test method for coal-based granular activated carbon " (GB / T 7702-2008), measure the iodine adsorption value and the methylene blue adsorption value of each alternative particle activity (each alternative granular activated carbon detects No less than 2 copies of the parallel samples), calculate the iodine adsorption value membership degree and the methylene blue adsorption value membership degree of each alternative granular activated carbon, the calculation method is as shown in formula 1, (for example, A i1 Is the membership degree of iodine adsorption value of No. i alternative granular activated carbon, A i2 Can be the methylene blue adsorption value membership degree of No. i alternative granular activated carbon), x ij It is the j item parameter of No. i candidate granular activated carbon (for example, ...

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Abstract

The invention relates to a method for optimization of activated carbon and establishes a comprehensive evaluation model of granular activated carbon. The comprehensive evaluation model has an expression formula shown in the description, wherein Ii represents the comprehensive score of alternative granular activated carbon i, Wj represents a weight coefficient of the j parameter, Aij represents themembership degree of the j parameter of the alternative granular activated carbon i, and j=1, j=2, j=3, j=4 , j=5 and j=6 respectively correspond to the iodine adsorption value, methylene blue adsorption value, UV254 average removal rate, DOC average removal rate, strength and unit volume (or unit mass) price of the alternative granular activated carbon. The granular activated carbon with the largest Ii value is selected. Compared with the prior art, the method comprehensively considers the static adsorption performance, dynamic adsorption performance, strength and cost of the granular activated carbon, comprehensively evaluates various alternative granular activated carbon, selects according to the comprehensive evaluation score and produces clear and intuitive results.

Description

technical field [0001] The invention relates to the technical field of an optimal method for activated carbon, in particular to an optimal method for granular activated carbon applied to the advanced treatment of drinking water. Background technique [0002] Due to the fact that water sources are generally polluted by organic substances at this stage, drinking water safety issues are prominent, so in order to ensure the safety of drinking water, granular activated carbon that can effectively adsorb organic pollutants has been widely used in the field of advanced treatment of drinking water. There are many types of granular activated carbon and the cost is high. Therefore, choosing the appropriate type of activated carbon is conducive to improving water quality and reducing operation and maintenance costs. [0003] The current carbon selection methods are mainly static adsorption method, physical property comparison method, micro-column rapid penetration method, etc., but the...

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Application Information

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IPC IPC(8): G01N15/00
CPCG01N15/00
Inventor 李伟英陈俊宇徐心远殷祺黄圣洁徐庶伟周文颖鞠佳伟
Owner TONGJI UNIV
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