A kind of environment-friendly microbial sewage treatment agent and its preparation method and application
A sewage treatment agent and microorganism technology, which is applied in the field of environmental protection microbial sewage treatment agent and its preparation, can solve the problems of lack of efficient microbial water treatment agent, etc., and achieve the effects of avoiding singleness, wide application range and wide temperature adaptation range.
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Embodiment 1
[0031] (1) The microbial water treatment agent provided by the present embodiment, its preparation method is:
[0032] S1: respectively culture the Bacillus subtilis, Enterococcus faecalis, and yeast to the plateau stage;
[0033] S2: Prepare the medium, add 10 parts of beef extract, 30 parts of molasses, 10 parts of glucose, 10 parts of peptone, and 2 parts of KH to 1000 parts of water in sequence 2 PO 4 and 4 parts of NaCl, adjust the pH value to 6.2-6.8, sterilize at 120°C for 20 minutes, cool to 37°C, and add water treatment catalyst;
[0034] S3: Mix the Bacillus subtilis, Enterococcus faecalis, and yeast cultured to the plateau stage uniformly according to a predetermined ratio, then add the above-mentioned medium at 37°C, mix uniformly, and culture under stirring conditions for 72 hours, and finally obtain the obtained The above microbial water treatment agent.
[0035] Wherein, the formula of above-mentioned water treatment catalyst is: chelating agent is the alumin...
Embodiment 2
[0042] The microbial water treatment agent in this embodiment is prepared according to the preparation method of Example 1, and the 9th, 10th and 11th three treatment groups are set, and the effective viable counts of Bacillus subtilis, Enterococcus faecalis and yeast in all treatment groups The ratios are all 10:1:2. The catalysts used in the three treatment groups are different. The catalyst composition of each group is shown in Table 2 below. It is 61mg / L, according to the sewage treatment test method of embodiment 1, three treatment groups are carried out sewage treatment effect test respectively, and the test results of three treatment groups of A, B and C are shown in Table 2:
[0043] Table 2 The formula and sewage treatment effect of water treatment catalyst
[0044]
[0045]
[0046]From the treatment result of above-mentioned table 2 as can be known: among three treatment groups, the effect of the catalyst of treatment group 11 is the best, and the sewage treat...
Embodiment 3
[0048] The treatment object of this embodiment is: the high-concentration organic wastewater produced during the production process of xylitol by hydrolysis and hydrogenation of corncobs, the main components of which are non-toxic and harmless reducing sugars and organic acids obtained by hydrolysis of plant fibers. If the anaerobic sludge bed is used to treat corncob pretreatment acid water, the foaming phenomenon is very serious and the effect is not ideal.
[0049] The above-mentioned organic wastewater has a temperature of 30-36°C and a pH of 4-8.5. Due to its high COD concentration and insufficient other nutrients, it is necessary to add a certain weight-to-volume ratio of nutrients during the process of using the microbial water treatment agent of the present invention. (0.1% urea + 0.2‰ phosphate + 0.1% yeast extract, the concentration is the mass percentage of each component in the microbial water treatment agent), after the waste water is flocculated and precipitated, ...
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