Study on Short-Cut Nitrification Aerobic Granular Sludge Cultivation and Carbon-Nitrogen Removal

Jing Xiang Fu; Yu Lan Tang; Xing Guan Ma; Yu Hua Zhao; Hai Biao Wang

doi:10.4028/www.scientific.net/AMR.113-116.2305

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 113-116Study on Short-Cut Nitrification Aerobic Granular...

Study on Short-Cut Nitrification Aerobic Granular Sludge Cultivation and Carbon-Nitrogen Removal

Abstract:

Acclimation of short-cut nitrification aerobic granular sludge with aerobic granular sludge and nitrification sludge as seed sludge in a sequencing batch reactor(SBR) by controlling the pH, influent ammonia concentration, temperature and other conditions. Experimental results showed that the short-cut nitrification aerobic granular sludge with high ammonia and COD removal rate (95%) was formed successfully, and SBR can run long-term stably. DO at 6.0~8.0mg/L when the nitrosation rate remained stable at 50% ~ 60%, and lower DO levels within the reactor (2.0~3.0mg/L) nitrosation rates of up to 90%. Mature short-cut nitrification aerobic granular sludge average diameter of 2~3mm in between, MLSS of up to 10.162g/L, SVI minimum up to 22.63ml/g, moisture content is only 81.93%, total nitrogen removal rate of 40%, and carbon-nitrogen removal capability.

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Periodical:

Advanced Materials Research (Volumes 113-116)

Pages:

2305-2309

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.113-116.2305

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Online since:

June 2010

Authors:

Jing Xiang Fu, Yu Lan Tang, Xing Guan Ma, Yu Hua Zhao, Hai Biao Wang

Keywords:

Aerobic Granular Sludge, Carbon-Nitrogen Removal, Seed Sludge, Short Cut Nitrification

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