摘要
目前国内外常用的脱氮工艺为生物脱氮工艺,但含氮废水总量的不断增加且废水成分的不断复杂化,使得传统脱氮工艺面临挑战。针对这种挑战,研究了两株异养硝化菌,优选出二者最佳的复合方式为吸附复合。利用此种方式构建的复合菌可以在24 h将100 mg/L的氨氮脱除90%左右,且可以重复利用。复合菌具有将100 mg/L的硝酸盐氮完全降解的能力。复合菌较单株菌相比,在脱氨氮及硝态氮速率方面皆有明显优势。
With the development the of industry,nitrogen pollution is becoming increasingly serious. At present,the most widely used process of wastewater treatment is biological denitrogenation. While with the increasing of wastewater gross and its constituent becoming complex,the traditional denitrogenation process is facing with challenge. Aiming at this situation,two strains with the capability of HN-AD,Penicillium sp. L1 and Acinetobacter sp. Y1,were combined in this paper and the optimal combination pattern was found out to be adsorption. This compound bacteria could remove about 90% of NH+4- N( 100 mg/L) in 24 h and be utilized again. Mixed mycelial pellet can remove 100 mg/L NO3- N entirely. Comparing with single bacteria,the compound bacteria had a higher removal rate on NH+4-N and NO3-N.
出处
《环境工程》
CAS
CSCD
北大核心
2016年第S1期367-372,377,共7页
Environmental Engineering
关键词
异养硝化
复合菌
吸附
氨氮
硝氮
heterotrophic nitrification
compound microorganisms
adsorption
ammonia nitrogen
nitrate nitrogen
