Method for treating waste water by microbial directional produced enzyme
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A microbial and enzymatic treatment technology, applied in biological water/sewage treatment, chemical instruments and methods, water/sludge/sewage treatment, etc. The effect of improving the removal capacity and improving the stability
Active Publication Date: 2012-07-11
宜态科水务技术(上海)有限公司
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The disadvantage of this method is that the scope of application is limited
The disadvantage of this method is that the operating cost is high, the process is not yet mature, and it is prone to hardening and passivation.
Therefore, such bioaugmentation methods are generally ineffective and expensive
[0007] There are
Method used
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Embodiment 1
[0055] A papermaking wastewater
[0056] The first step is to prepare the nutrient solution for cultivation:
[0057] Nutrient solution: Weigh 5kg of fructose, 1kg of ammonium carbonate, 0.5kg of MgSO4, 0.2kg of potassium dihydrogen phosphate, 1kg of kelp extract and 3kg of sodium humate, mix well, add dechlorinated and sterilized tap water to 100kg, stir to dissolve .
[0058] The second step is to prepare the nutrient solution of activated microorganisms:
[0059] The culture medium adopts two Yitaike environmental protection biological online automatic incubators, which are operated alternately. Weigh 10kg of the above nutrient solution and 2kg of Baitean product 231 respectively, stir, add dechlorinated and sterilized tap water to 1000kg, and start culturing. After 24 hours, weigh 10kg of the above-mentioned nutrient solution A and 2kg of Baitean product 231, stir, add dechlorinated and sterilized tap water to 1000kg, and start culturing. During the cultivation process...
Embodiment 2
[0066] Dyeing Wastewater
[0067] The first step is to prepare the nutrient solution for cultivation:
[0068] Nutrient solution: Weigh 5kg of fructose, 1kg of ammonium carbonate, 0.2kg of potassium dihydrogen phosphate, 0.5kg of magnesium sulfate, 1kg of kelp extract and 3kg of sodium humate, mix well, add dechlorinated and sterilized tap water to 100kg, stir to make dissolve.
[0069] The second step is to prepare the activated microbial culture solution:
[0070]The cultivation system uses two Yitaike environmental protection biological online automatic cultivation devices, which operate alternately. Weigh 10kg of the above-mentioned nutrient solution and 2kg of Baitean product 431, stir, add dechlorinated and sterilized tap water to 1000kg, and start culturing. After 24 hours, weigh 10kg of the above-mentioned nutrient solution and 2kg of Baitean product 431, stir, add dechlorinated and sterilized tap water to 1000kg, and start culturing. During the cultivation process...
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Abstract
The invention relates to a method for treating waste water by microbial directional produced enzyme. The method comprises the following steps and technical conditions of: 1) preparation of nutrition liquid for culture: the nutrition liquid for culture comprises 1 to 10 percent of organic nutrition, 0.5 to 2 percent of A type inorganic nutrition, 0.1 to 0.5 percent of B type inorganic nutrition, 0.3 to 1.5 percent of trace elements and 1.5 to 7 percent of biological auxin; 2) preparation of culture liquid of activation microbes: the culture liquid consists of water and nutrition liquid required by spore state microbes and activated spore type microbes; 3) preparation of nutrition liquid for secondary metabolism: the nutrition liquid for the secondary metabolism comprises 0.5 to 2 percent of A type inorganic nutrition, 0.1 to 0.5 percent of B type inorganic nutrition, 0.3 to 1.5 percent of trace elements and 1.5 to 7 percent of biological auxin; 4) preparation of culture liquid of stimulated microbial secondary metabolism produced enzyme: the culture liquid consists of the culture liquid obtained in the second step, the nutrition liquid for secondary metabolism obtained in the third step, sterilized industrial waste water, sterilized dechlorination tap water; and 5) on-site continuous bacterial liquid addition. The method has the advantage that through the secondary metabolism produced enzyme, the system stability and the removal capability of a system on difficult-degradation organic matters are effectively improved.
Description
Technical field: [0001] The invention relates to water, waste water and sewage treatment, more specifically to a method for treating waste water by directional enzyme production by microorganisms. Background technique: [0002] Refractory industrial wastewater refers to the wastewater generated in the production process of printing and dyeing, papermaking, medicine, chemical industry and so on. The pollutants in these wastewaters are difficult to biodegrade, characterized by the B / C of the wastewater being less than 0.2. Therefore, pretreatment techniques and methods must be used in order to effectively deal with it. At present, there are three main solutions for these refractory industrial wastewater, namely hydrolytic acidification, micro-electrolysis and bio-enhancement technology. [0003] Hydrolytic acidification controls anaerobic hydrolysis and acidification stages, and uses hydrolysis and acid-producing microorganisms to degrade solids, macromolecules and non-biode...
Claims
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Application Information
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