Method for treating malachite green dye waste water

A technology for dye wastewater and malachite green, applied in the field of applied microorganisms and environmental engineering, can solve the problems of complex preparation process, secondary environmental pollution, low immobilization efficiency, etc., and achieves simple operation, small environmental impact and good stability. Effect
CN101973640AInactive Publication Date: 2011-02-16NORTHEAST DIANLI UNIVERSITY +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
NORTHEAST DIANLI UNIVERSITY
Publication Date
2011-02-16
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method for treating malachite green dye waste water, which comprises the following steps of: preparing a bacterial cellulose membrane; modifying the bacterial cellulose membrane; immobilizing white rot fungi by using the modified bacterial cellulose membrane; adding the obtained immobilized white rot fungi modified bacterial cellulose membrane into 50 mL of the malachite green dye waste water; dissolving 20 to 40 mg of malachite green into 1 L of white rot fungi liquid restrictive culture medium; treating the waste water on a gas bath constant-temperature shaking table at a speed of 120 rpm for 5 days at 28 DEG C, and measuring the chroma of the waste water at intervals of 24 hours; 5 days later, discarding the treated waste water, and retaining the immobilized fungi; adding 50 mL of newly-prepared dye waste water with the same concentration, treating the waste water under the same condition, and measuring the chroma of the waste water at intervals of 24 hours; and taking 5 days as a cycle, and repeating the steps for 5 times, wherein the removal rate of the chroma of the waste water is always over 86 percent. In the method, the referred bacillus xylinus and the white rot fungi are purchased from the China General Microbiological Culture Collection Center.
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Description

technical field

[0001] The invention belongs to the technical field of applied microorganisms and environmental engineering, and relates to a method for treating dye wastewater by using a novel immobilized carrier to immobilize microorganisms. In particular, it relates to the treatment of malachite green dye wastewater by using the modified bacterial cellulose membrane of immobilized white rot fungus. Background technique

[0002] Malachite green is a toxic triphenylmethane chemical. After the condensation of benzaldehyde and N,N-dimethylaniline in hydrochloric acid or sulfuric acid to form a recessive base of tetramethyl-substituted diaminotriphenylmethane, It is made by oxidation of lead dioxide in acid medium. At present, the treatment of malachite green dye wastewater mainly adopts photocatalytic oxidation method, microwave method, iron oxide battery method and diatomite porous ceramic method, etc., but these methods have high cost, long cycle, poor operation stability,...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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