Preparation method for mycelium/caustic calcined magnesite composite printing and dyeing wastewater treating agent
A technology for printing and dyeing wastewater and mycelium, which is applied in water/sewage treatment, textile industry wastewater treatment, water/sludge/sewage treatment, etc., to achieve the effects of good decolorization effect, abundant stock and simple preparation process
Inactive Publication Date: 2013-10-30
SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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[0003] The object of the present invention is to provide a preparation method of mycelium / light-burned magnesium composite printing and dyeing wastewater treatment agent, the material is derived from natural magnesite and fermentation industrial solid waste, the stock is abundant, the cost is low, and the problem of low-grade magnesite is solved. The utilization of magnesium ore provides a way out for its rational development and utilization, and enriches the varieties of water treatment agents
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[0013] The present invention will be described in detail below in conjunction with examples.
[0014] Add 10g of Aspergillus niger mycelium powder and 300g of lightly burned magnesium powder into a 500mL large beaker and mix evenly, then add 550mL of industrial hydrochloric acid with a mass fraction of 15%, stir while adding, continue to stir and mix for 15min, after static activation for 30min, place Heating and modifying in a microwave oven, drying, taking out and cooling, and grinding into powder is the prepared mycelium / light-burned magnesium organic-inorganic composite printing and dyeing wastewater treatment agent product. This product is used to treat four kinds of dye simulated wastewater and two kinds of actual printing and dyeing wastewater commonly used in printing and dyeing factories with a concentration of 100mg / L, and a good treatment effect has been received. The processing results are shown in Table 1 and Tables 2 and 3.
[0015] Table 1 Composite water treat...
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The invention provides a preparation method for a mycelium / caustic calcined magnesite composite printing and dyeing wastewater treating agent, relating to the field of water treatment disinfectants. The method comprises the following steps of: 1) preparing raw materials: drying and crushing fungal mycelium, screening fungal mycelium powder through a 200-mesh screen, and screening calcined magnesite through a 150-mesh to 200-mesh screen; and 2) preparing the water treatment agent: mixing the mycelium powder with the calcined magnesite in a mass ratio of 1:25 to 35 (g / g), adding industrial hydrochloric acid with 10 to 15 percent of mass fraction in a mass volume ratio of 1:1.75 to 1.2 (g / mL), stirring and mixing for 10 to 15 min, statically activating for 30 min, performing microwave modification drying, and crushing to obtain a product of the mycelium / caustic calcined magnesite organic and inorganic composite printing and dyeing wastewater treating agent. According to the preparation method, the caustic calcined magnesite powder is used as a raw material, so that the preparation method has the advantages of low cost, no pollution, simple preparation process and environment friendliness, and has better coagulation and decolorization effects on active dyes, disperse dyes and actual printing and dyeing wastewater and higher COD removal rate.
Description
technical field [0001] The invention relates to a preparation method of a water treatment agent, in particular to a preparation method of a mycelium / light-burned magnesium composite printing and dyeing wastewater treatment agent. Background technique [0002] The existing printing and dyeing wastewater treatment agents have complex preparation process, high cost, secondary pollution, and poor decolorization effect on dyes (reactive dyes) with good water solubility or low molecular weight. Water treatment agents (coagulants) include inorganic coagulants and organic polymer coagulants. Inorganic coagulants are mostly iron salts, aluminum salts, magnesium salts and inorganic polymer coagulants. Organic polymer coagulants include synthetic organic polymer coagulants and natural organic polymer coagulants. Synthetic organic polymer coagulants are mostly artificially synthesized giant linear molecules, while natural organic polymer coagulants include starch derivatives, cellulos...
Claims
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IPC IPC(8): C02F1/00C02F1/52C02F1/56C02F103/30
Inventor 刘桂萍刘学贵刘长风宁志高
Owner SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY