Abstract:Abstract: A strain of microorganism that demonstrated efficient nitrogen removal potential under low C/N conditions was screened from landfill leachate. The strain was identified as Galactomyces candidum by ITS sequencing, and growth density and removal of ammonia nitrogen were assessed after 24 h of incubation. The results showed that the optimum ammonia nitrogen reduction conditions for G. candidum was at pH 8.0 and 30 ℃, with a C/N ratio of 1.5; the highest rate of ammonia nitrogen removal was 93.1%. This novel function of G. candidum offers great potential in the removal of ammonia nitrogen from sewage, especially in low C/N wastewater. Our study provides a new theoretical basis for the industrial application of microorganism in the biochemical treatment of wastewater and reduces environmental pollution.
Key words: Galactomyces candidum; low C/N; ammonia nitrogen reduction; wastewater treatment; culture conditions
(Acta Laser Biology Sinica, 2023, 32(1): 089-096)
引用本文:
刘 辉,李晓超,毛晓茜,鲁冰花,曾桂华,李华林,王雪景,陈佳艳,肖亚梅,李 庄,刘文彬,杨利平. 一株白地霉在低碳氮比废水中降氨氮新功能的研究[J]. 激光生物学报, 2023, 32(1): 89-96.
LIU Hui, LI Xiaochao, MAO Xiaoqian, LU Binghua, ZENG Guihua, LI Hualin, WANG Xuejing, CHEN Jiayan, XIAO Yamei, LI Zhuang, LIU Wenbin, YANG Liping. A Novel Function of Galactomyces candidum in Highly Efficient Ammonia Nitrogen Removal from Low C/N Wastewater. journal1, 2023, 32(1): 89-96.