Method for preparing magnetic saccharomyces cerevisiae and technique for processing printing and dying wastewater by using same
A technology for Saccharomyces cerevisiae and printing and dyeing wastewater is applied in the field of preparation of magnetic Saccharomyces cerevisiae, which can solve the problems of secondary pollution, lack of formation process, and difficulty in recycling and reuse, and achieves the effect of avoiding secondary pollution and having broad application prospects.
Inactive Publication Date: 2012-07-04
SICHUAN AGRI UNIV
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The advantages of using Saccharomyces cerevisiae to treat dyes are mainly cheap and easy to obtain. When treating dye wastewater, they show good acid resistance, alkali resistance and strong adsorption and degradation capabilities, but because they are difficult to recycle and reuse, they are prone to secondary pollution. Large defects, no mature technology, difficult to use in practice
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[0032] The above content of the present invention will be further described in detail below in conjunction with the specific implementation of the examples: a preparation method of a magnetic Saccharomyces cerevisiae composite adsorption material, and the specific steps of the preparation method are as follows:
[0033] Step A: preparing superparamagnetic nano-ferric oxide by sol-gel method;
[0034] A 1 ), material preparation: select solid NaOH, FeSO 4 ·7H 2 O and FeCl 3 , according to NaOH:FeSO 4 ·7H 2 O: FeCl 3 =16g: 2.78g: 2.925g proportioning is weighed;
[0035] A 2 ), the preparation of NaOH solution: the weighed NaOH is completely dissolved in 100mL distilled water to make NaOH solution;
[0036] A 3 ), deoxygenation treatment: pour the NaOH solution into the mixing container, place the mixing container filled with the NaOH solution in a heated water bath, heat and keep the temperature of the water bath at a constant temperature of 63°C, and stir at a speed o...
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Abstract
The invention discloses a method for preparing a magnetic saccharomyce cerevisiae composite adsorbing material and a technique for processing printing and dying wastewater by using the same. The method comprises the following steps of: preparing superparamagnetic nanometer ferroferric oxide by utilizing a sol-gel method; pretreating saccharomyces cerevisiae; and preparing the magnetic saccharomyces cerevisiae composite adsorbing material by utilizing a crosslinking method. The magnetic saccharomyces cerevisiae composite adsorbing material prepared in the invention has low price, practicability, high efficiency and broad application prospect and very high adsorbing effect on basic dyes, and can be repeatedly utilized for many times and avoid secondary pollution. Because of the crosslinkingeffect of glutaraldehyde, the saccharomyces cerevisiae has superparamagnetism; and because of the immobilized effect of the glutaraldehyde, the anticorrosive capacity and the mechanical strength of the saccharomyces are improved. The magnetic saccharomyce cerevisiae has higher mechanical strength and stability, the repeated utilization rate of the adsorbing material of the magnetic saccharomyce cerevisiae can be effectively enhanced, and the treatment cost of the printing and dying wastewater is lowered.
Description
technical field [0001] The invention relates to the technical field of printing and dyeing wastewater treatment, in particular to a preparation method of magnetic Saccharomyces cerevisiae and a technology for treating printing and dyeing wastewater. Background technique [0002] The textile industry is one of the important economic sectors of our country. In the production process of the textile industry, a large amount of wastewater will be produced, among which the printing and dyeing wastewater is the most polluted, and its discharge accounts for about one tenth of the total industrial wastewater discharge. Printing and dyeing wastewater is widely recognized as one of the difficult-to-treat wastewater due to its large discharge volume, deep color, high content of organic pollutants, complex and changeable water quality, and poor biochemical properties. There are many printing and dyeing textile enterprises in our country, the use of dyes is large, and the dye wastewater ...
Claims
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IPC IPC(8): B01J20/24B01J20/28B01J20/30C02F1/28
Inventor 张云松赵茂俊王仁国田宇许孟
Owner SICHUAN AGRI UNIV