Screening and application of a bacterium for total nitrogen treatment of high concentration printing and dyeing wastewater
In order to effectively improve the efficiency of total nitrogen removal in printing and dyeing wastewater,an efficient total nitrogen removal bacterium(TS)was isolated and screened from the internal soil of printing and dyeing enterprises.Within 2-3 d culture,the strain OD600 reached the maximum and the effec-tive denitrogenation time was 7 d.Through physiological and biochemical test,the strain was confirmed to be-long to Pseudomonas genus.Under the condition of ammonium sulfate and sodium acetate as nitrogen and car-bon sources,the total nitrogen treatment rate of TS strain reached 79.9%within 7 d.The actual removal rate of total nitrogen was increased by 10%after the bioenhancement of the strain was applied to the actual wastewater of enterprises.
printing and dyeing wastewaterbacteriumtotal nitrogen removalbioenhancement
国家科技期刊平台
NSTL
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