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Method for removing chlorobenzene in water body with cladophora glomerata

A technology for claste algae and water bodies, applied in chemical instruments and methods, water pollutants, biological water/sewage treatment, etc., can solve the problems of poor removal effect of chlorobenzene, poor removal effect of chlorobenzene, and low removal rate, etc. Achieve effects that are conducive to promotion and production, easy to cultivate artificially, and high in processing efficiency

Inactive Publication Date: 2011-06-22
TAIYUAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is to say, the removal of benzene compounds in the prior art is limited because the method is not effective in removing chlorobenzene in wastewater, and the removal rate is low.
Therefore need to propose a kind of removal method for the chlorobenzene in the benzene series compound in the industrial waste water, to overcome the bad defect of the chlorobenzene in the benzene series compound removal effect in the prior art, further optimize the benzene in the industrial waste water system compound removal

Method used

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  • Method for removing chlorobenzene in water body with cladophora glomerata
  • Method for removing chlorobenzene in water body with cladophora glomerata
  • Method for removing chlorobenzene in water body with cladophora glomerata

Examples

Experimental program
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Effect test

Embodiment 1

[0022] Embodiment one (laboratory)

[0023] Choose vigorous growth, algae body height greater than 2cm, preferred 2--10cm Cladophora, with the ratio of 1g wet weight / 250ml water (wherein the wet weight is the weight after 20 minutes of getting Cladophyllum on water filter paper), place Put them in an Erlenmeyer flask containing 250ml of water, and then put them into a light incubator for cultivation. Treatment conditions: the concentration of chlorobenzene (three isomers of dichlorobenzene according to the material ratio 1:1:1) is 10mg / L, the temperature is 18°C, the light intensity is 2500--3500lx, and the light-dark cycle ratio is 12:12 , place the culture carrier attached with Cladophora in water, and repeat the experiment three times. After culturing for 3 days, the content of chlorobenzene was measured.

[0024] Removal:

[0025] Use gas chromatography to detect the chlorobenzene content, repeat the experiment three times, the results show that the average content of c...

Embodiment 2

[0026] Embodiment two (1000L water)

[0027] Choose Cladophora with vigorous growth and algae body height greater than 2cm, preferably 2--10cm, attach it to the culture carrier with a wet weight of about 4000g, and place it on chlorobenzene (including three isomers of dichlorobenzene, trichlorobenzene, etc.) 4 kinds of isomers, mixed according to the proportion of equal substances) are cultured in 1000L water with a content of 10mg / L, treatment conditions: natural light, temperature 15°C, light-dark cycle ratio 10:14; At the same time, it is set in the water at depths of 0.2m, 0.4m, 0.6m, 0.8m and 1.0m, and the algae is changed once every 3 days, a total of 3 times, and the content of chlorobenzene is measured.

[0028] Removal:

[0029] Use gas chromatograph to detect chlorobenzene content, the result shows, the average content of chlorobenzene thing is 0.6mg / L, and the removal rate of Cladophora p-chlorobenzene surpasses 90%, reaches national regulation on drinking water (t...

Embodiment 3

[0030] Embodiment three (10 tons of industrial waste water)

[0031]Select Cladophora with vigorous growth and algae body height greater than 2cm, preferably 2-10cm, attach it to the culture carrier with a wet weight of about 40kg, and place it on chlorobenzene (including 3 isomers of dichlorobenzene, 4 trichlorobenzene, etc.) 5 kinds of isomers, 5 kinds of isomers of tetrachlorobenzene, pentachlorobenzene and hexachlorobenzene are mixed according to equal material ratio) content is 10 tons of industrial waste water of 10mg / L and is cultivated, treatment condition: temperature 10- 25°C, light-to-dark cycle ratio 8:14; set the carrier with Cladophora attached to the water at depths of 0.1m, 0.3m, 0.5m, 0.7m, 0.9m and 1.1m at the same time, treatment conditions: natural light, temperature Change the algae once every 4 days at 18°C, a total of 4 times, and measure the content of chlorobenzene.

[0032] Removal:

[0033] Use gas chromatograph to detect chlorobenzene content, the...

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Abstract

The invention relates to a method for purifying a water body. The method for purifying a water body comprises the following steps of: (A) selecting cladophora glomerata with vigorous growth and the cladophora glomerata height of larger than 2cm, preferably 2-10cm to be placed into tap water for domesticating and culturing for 1-2 days, wherein the domesticating conditions comprise the light intensity of 2,500-3,500lx, the temperature of 10-25 DEG C and the light and darkness period ratio of 12:12; and (B) simultaneously placing the domesticated cladophora glomerata into water with the different depths of 0-1.1m for culturing at preset intervals (water submerges the cladophora glomerata), wherein the treatment conditions comprise the natural illumination, the temperature of 10-25 DEG C, cladophora glomerata replacement once every 3-5 days and total replacement for 2-4 times. The method for purifying the water body can realize sewage recycling, ensures that the sewage treatment energy consumption and cost are reduced, can obtain maximal economic benefit in the minimal water body and establish a multistage ecological system for purifying sewage.

Description

technical field [0001] The present invention relates to a method for purifying water bodies, in particular to a method for removing chlorobenzene in industrial waste water, specifically using large-scale filamentous green algae Cladoides (including Cladophyceae plants, generally using Cladoides fragilis and Cladoides agglomerates, etc.) Fixed and put into production. Background technique [0002] Chlorobenzenes (DCBs) belong to halogenated aromatic hydrocarbons, which are compounds in which halogens are directly connected to aromatic rings, and their properties are quite different from those of halogenated aliphatic hydrocarbons. There are 12 compounds in chlorobenzenes, whose physical and chemical properties are related to the number of chlorine atoms and substitution sites, and are widely used as raw materials for pesticides, dyes, and chemical production. Therefore, the US Environmental Protection Agency (EPA) has included it in the list of important environmental pollut...

Claims

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Application Information

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IPC IPC(8): C02F3/32C02F101/36
Inventor 石瑛杜青平李砧张猛谢树莲乔凯
Owner TAIYUAN NORMAL UNIV
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