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	Removal of nitrates from drinking water using biodegradable polymers as both substrate and biofilm carrier
	Zhou Haihong ; Zhao Xuan ; Wang Jianlong
	2010-05-10 ; 2010-05-10
关键词	Practical Experimental/ environmental degradation filtration health and safety microorganisms polymer films water treatment/ biofilm carrier drinking water nitrates removal insoluble biodegradable polymers pellets solid substrate biological heterotrophic denitrifying bacteria dissolved oxygen shock denitrification rate/ E0240H Health and safety aspects E0230 Environmental issues E1525 Industrial processes E1710 Engineering materials
中文摘要	PBS, in the form of insoluble biodegradable polymers pellets, was used as the solid substrate and the biofilm carrier of biological heterotrophic denitrifying bacteria to remove nitrates from drinking water. The experimental results demonstrate that denitrifiers form biofilms on the surfaces of the PBS granules within 15 d. The attached biomass has excellent denitrification ability despite the high pH and dissolved oxygen shock. The denitrification rate is 0.63-0.68 mg middot (g, d)/sup -1/ for pH between 4.5-9.5 and 0.48-0.7 mg middot (g, d)/sup -1/ when the dissolved oxygen is 1.4-8.5 mg middot L/sup -1/. The temperature also greatly affects the denitrification rate with a rate of 0.72 mg middot (g, d)/sup -1/ at 30 degrees C which is much larger than the rate of 0.23 mg middot (g, d)/sup -1/ at 13 degrees C.
语种	中文 ; 中文
出版者	Tsinghua Univ. Press ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/22926]
专题	清华大学
推荐引用方式 GB/T 7714	Zhou Haihong,Zhao Xuan,Wang Jianlong. Removal of nitrates from drinking water using biodegradable polymers as both substrate and biofilm carrier[J],2010, 2010.
APA	Zhou Haihong,Zhao Xuan,&Wang Jianlong.(2010).Removal of nitrates from drinking water using biodegradable polymers as both substrate and biofilm carrier..
MLA	Zhou Haihong,et al."Removal of nitrates from drinking water using biodegradable polymers as both substrate and biofilm carrier".(2010).

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