A microbial enzyme compound preparation and its preparation method and its application in the treatment of industrial sewage or landfill leachate
A technology of landfill leachate and compound preparation, which is applied in the application field of microbial enzyme compound preparation and its preparation, and in the treatment of industrial sewage or landfill leachate. It can solve the problems of sewage treatment failure and other problems, so as to improve the reaction rate and COD removal rate. Effect
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[0030] The present invention also provides the preparation method of the microbial enzyme composite preparation described in the above technical scheme, comprising the following steps:
[0031] (1) Get the sludge at the bottom of the aerobic pond and the sludge at the bottom of the anaerobic pond of the sewage treatment plant, and filter it after diluting 5 to 10 times with water respectively to obtain the aerobic crude filtrate and the anaerobic crude filtrate;
[0032] (2) Filter the aerobic coarse filtrate and anaerobic coarse filtrate through a 0.45 μm microporous membrane respectively to obtain aerobic fine filtrate and anaerobic fine filtrate;
[0033] (3) inserting the aerobic refined filtrate into the fermentation medium for aerobic cultivation for 3 to 7 days to obtain an aerobic fermentation liquid;
[0034] Putting the anaerobic refined filtrate into the fermentation medium for anaerobic cultivation for 3-7 days to obtain anaerobic fermentation liquid;
[0035] (4)...
Embodiment 1
[0046] Prepare COD by yourself Cr The concentration is 3000mg / L, BOD 5 Synthetic wastewater with a concentration of 1200mg / L and a pH value of 10-11.
[0047] (1) Take 10L each of the aerobic pool bottom sludge and the anaerobic pool bottom sludge of a sewage treatment plant in Shanghai, add 10 times the volume of water and mix them with a 30 μm filter membrane to obtain the aerobic crude filtrate and Anaerobic crude filtrate;
[0048] (2) Filter the aerobic coarse filtrate and anaerobic coarse filtrate through a 0.45 μm microporous membrane respectively to obtain aerobic fine filtrate and anaerobic fine filtrate;
[0049] (3) Connect the aerobic fine filtrate to the synthetic wastewater for aerobic cultivation for 5 days to obtain an aerobic fermentation liquid; connect the anaerobic fine filtrate to the synthetic wastewater for anaerobic cultivation for 7 days to obtain an anaerobic fermentation liquid;
[0050] (4) Centrifuge the aerobic fermentation broth and the anaero...
Embodiment 2
[0053] Prepare COD by yourself Cr The concentration is 3000mg / L, BOD 5 Synthetic wastewater with a concentration of 1200mg / L and a pH value of 10-11.
[0054] (1) Take 10L of the aerobic pool bottom sludge and the anaerobic pool bottom sludge of a sewage treatment plant in Shanghai, respectively add 5 times the volume of water and mix them with a 5 μm filter membrane to obtain the aerobic crude filtrate and Anaerobic crude filtrate;
[0055] (2) Filter the aerobic coarse filtrate and anaerobic coarse filtrate through a 0.45 μm microporous membrane respectively to obtain aerobic fine filtrate and anaerobic fine filtrate;
[0056] (3) Connect the aerobic refined filtrate to the synthetic wastewater for aerobic cultivation for 7 days to obtain an aerobic fermentation liquid; connect the anaerobic fine filtrate to the synthetic wastewater for anaerobic cultivation for 7 days to obtain anaerobic fermentation liquid;
[0057] (4) Centrifuge the aerobic fermentation broth and the ...
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