A biosorbent for treating dye wastewater, its preparation method and its application

A biosorbent, dye wastewater technology, applied in chemical instruments and methods, adsorption water/sewage treatment, other chemical processes, etc., can solve problems such as production, life and health adverse effects, waste of biomass resources, waste of resources and the environment , to achieve excellent adsorption effect, large adsorption capacity and high treatment efficiency

Inactive Publication Date: 2018-01-26
NANYANG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

If these by-products are not handled properly, it will cause waste of resources and environmental pollution, adversely affect people's production, life and health, and cause waste of biomass resources

Method used

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Examples

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preparation example Construction

[0032] The present invention also provides a preparation method of the biosorbent for treating dye wastewater, comprising the following steps:

[0033] 1) Wash 35-40 parts by weight of edible fungus waste, 22-30 parts by weight of bamboo shoot waste, 20-25 parts by weight of grapefruit peel, and 5-12 parts by weight of tea leaves, then dry and pulverize , passing through a 20-40 mesh sieve to obtain biomass material coarse powder;

[0034] 2) Add an alkali solution with a concentration of 0.5-5 mol / L to the coarse powder of biomass material obtained in step 1), stir for 36-48 hours, and filter to obtain the activated product;

[0035]3) Wash the activated product obtained in step 2) with distilled water until neutral, dry, add citric acid solution with a concentration of 0.5~0.8mol / L, soak for 12~18h, then stir at 70~75°C for 3~5h, Filtration obtains the modified product;

[0036] 4) Wash the modified product obtained in step 3) to neutrality with distilled water, dry, then ...

Embodiment 1

[0051] A preparation method and application of a biosorbent for treating dye wastewater, comprising the following steps:

[0052] 1) Wash 35 parts by weight of edible fungus waste, 22 parts by weight of bamboo shoot waste, 20 parts by weight of pomelo peel, and 5 parts by weight of tea leaves with distilled water, then dry and pulverize, pass through a 20-40 mesh sieve, Obtain biomass material coarse powder;

[0053] 2) Add sodium hydroxide solution with a concentration of 0.5mol / L to the coarse powder of biomass material obtained in step 1), the mass volume ratio of coarse powder of biomass material to sodium hydroxide solution is 10g / L, stir for 36h, and filter get activated product;

[0054] 3) Wash the activated product obtained in step 2) until neutral, dry, add a citric acid solution with a concentration of 0.5mol / L, the mass volume ratio of the activated product to the citric acid solution is 15g / L, soak for 12h, and then Stirring at 70°C for 3h, filtering to obtain t...

Embodiment 2

[0060] A preparation method and application of a biosorbent for treating dye wastewater, comprising the following steps:

[0061] 1) Wash 36 parts by weight of edible fungus waste, 24 parts by weight of bamboo shoot waste, 22 parts by weight of pomelo peel, and 6 parts by weight of tea leaves with distilled water, then dry and pulverize, pass through a 20-40 mesh sieve, Obtain biomass material coarse powder;

[0062] 2) Add potassium hydroxide solution with a concentration of 1mol / L to the coarse powder of biomass material obtained in step 1), the mass volume ratio of coarse biomass material to potassium hydroxide solution is 15g / L, stir for 40h, and filter to obtain activation product;

[0063] 3) Wash the activated product obtained in step 2) until neutral, dry, add a citric acid solution with a concentration of 0.6mol / L, the mass volume ratio of the activated product to the citric acid solution is 16g / L, soak for 14h, and then Stir at 72°C for 3.5h, and filter to obtain t...

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Abstract

The invention provides a biosorbent for treating dye wastewater, a preparation method and application thereof, and belongs to the technical field of dye wastewater treatment. The raw materials contained in the biosorbent and their content are: 35-40 parts by weight of edible fungus waste, 22-30 parts by weight of bamboo shoot waste, 20-25 parts by weight of pomelo peel, and 5-12 parts by weight of tea leaves. After the raw material is pretreated, add alkali solution and stir, wash with water until neutral, add citric acid solution to soak after drying, heat and stir, wash with water until neutral, add alcohol solution after drying, soak with ultrasonic wave, wash with water until neutral, dry and pulverize A biosorbent for treating dye wastewater can be obtained. The application of the biosorbent in treating dye wastewater is that the biosorbent is added into the dye aqueous solution to carry out oscillation reaction, filtered and separated, and the adsorption and removal of the dye aqueous solution is completed. The invention not only solves the problem of environmental pollution, but also realizes the recycling of waste, and achieves the purpose of "treating waste with waste".

Description

technical field [0001] The invention belongs to the technical field of dye wastewater treatment, and in particular relates to a biosorbent for treating dye wastewater, a preparation method and an application thereof. Background technique [0002] With the rapid development of industries such as textiles, leather, plastics, and paper, the demand for dyes is increasing day by day, and the resulting dye wastewater is also increasingly harmful to the environment. The environmental pollution caused by dye wastewater is increasingly threatening people's lives. health and life safety. [0003] Dye wastewater has complex components, often containing a variety of organic dyes and their intermediates, deep chroma, high toxicity, poor biodegradability, large pH fluctuations, large component changes, and high concentrations, so it has always been a difficult problem for industrial wastewater treatment. Dye wastewater also has "mutagenic, teratogenic and carcinogenic" effects. The comm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/24B01J20/30C02F1/28
Inventor 郭永明胡凤萍马勤阁
Owner NANYANG NORMAL UNIV
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