Method for preparing microbial flocculant form potato starch wastewater as raw material
A technology for microbial flocculant and potato starch, which is applied in the field of preparing microbial flocculants, can solve the problems of secondary environmental pollution, large temperature influence, long time consumption, etc., and achieves the effects of high flocculation activity, good environmental benefits and low price.
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Embodiment 1
[0021] Example 1 A kind of method using potato starch waste water as raw material to prepare microbial flocculant comprises the following steps:
[0022] ⑴ Screen out the microbial flocculant strain, which is Candida anglica , and its preservation number in the General Microbiology Center of China Microbiological Culture Collection Management Committee is CGMCC No: 7032 (preservation unit address: Institute of Microbiology, Chinese Academy of Sciences, No. 1, No. 1 Beichen West Road, Chaoyang District, Beijing; preservation date: December 2012 24th).
[0023] Wherein: bacterial strain refers to the activated sludge of the secondary settling tank of sewage treatment plant as strain isolation material, and potato dextrose agar medium (PDA) is used as separation medium, adopts conventional plate separation method to obtain multiple pure bacterial strains, the multiple pure bacterial strains The strains were inoculated in potato glucose liquid culture medium with 1-2 ring in...
Embodiment 2
[0029] Example 2 A kind of method using potato starch waste water as raw material to prepare microbial flocculant comprises the following steps:
[0030] ⑴ Screen out the microbial flocculant strain, which is Candida anglica , and its preservation number in the General Microbiology Center of China Microbiological Culture Collection Management Committee is CGMCC No: 7032 (preservation unit address: Institute of Microbiology, Chinese Academy of Sciences, No. 1, No. 1 Beichen West Road, Chaoyang District, Beijing; preservation date: December 2012 24th).
[0031] Among them: the identification of strains and strains is the same as Example 1 .
[0032] ⑵ Candida anglica The preparation of the primary seed solution of the strain: the Candida anglica The slant strains were inoculated in 1-2 rings of potato dextrose liquid medium, and cultured for 24 hours at 30°C with a shaker speed of 180 r / min to obtain a cell concentration of 1.2×10 6 individual / mL primary seed solution...
Embodiment 3
[0036] Example 3 A kind of method using potato starch waste water as raw material to prepare microbial flocculant comprises the following steps:
[0037] ⑴ Screen out the microbial flocculant strain, which is Candida anglica , and its preservation number in the General Microbiology Center of China Microbiological Culture Collection Management Committee is CGMCC No: 7032 (preservation unit address: Institute of Microbiology, Chinese Academy of Sciences, No. 1, No. 1 Beichen West Road, Chaoyang District, Beijing; preservation date: December 2012 24th).
[0038] Among them: the identification of strains and strains is the same as Example 1 .
[0039] ⑵ Candida anglica The preparation of the primary seed solution of the strain: the Candida anglica The slant bacteria were inoculated in ring 1-2 of potato dextrose liquid medium, and cultured for 36 hours at 28°C with a shaker speed of 150 r / min to obtain a cell concentration of 1.2×10 6 individual / mL primary seed solution...
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