Application of nitrifying granules to improvement of nitrification activity in activated sludge process

Naohiro Kishida; Ryo Totsuka; Atsushi Kono; Mikiya Kurasawa; Motoki Ogiwara; Satoshi Tsuneda

doi:10.1504/IJEWM.2011.037370

Application of nitrifying granules to improvement of nitrification activity in activated sludge process

Naohiro Kishida, Ryo Totsuka, Atsushi Kono, Mikiya Kurasawa, Motoki Ogiwara, Satoshi Tsuneda

School of Advanced Science and Engineering

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

Nitrifying granules were used to improve nitrification performance of activated sludge process under high organic load. After inoculation of nitrifying granules, nitrification activity immediately increased, and kept for at least 70 days. Fluorescence in situ hybridisation analysis confirmed that nitrifying bacteria were retained in the granules even though nitrifying granules had been served in the organic wastewater treatment reactor for 70 days. Nitrification performance strongly depended on C/N ratio of the influent wastewater. Nitrifying granules that had been statically stored for 100 days could completely recover ammonia removal rate within 15 days after inoculation to ammonia-rich solution.

Original language	English
Pages (from-to)	103-111
Number of pages	9
Journal	International Journal of Environment and Waste Management
Volume	7
Issue number	1-2
DOIs	https://doi.org/10.1504/IJEWM.2011.037370
Publication status	Published - 2011

Keywords

Aerobic granules
Bioaugmentation
Biological nitrogen removal
Granulation
Microbial immobilisation
Nitrification
Nitrifying granules
Wastewater treatment

ASJC Scopus subject areas

Environmental Engineering
Waste Management and Disposal

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Application of nitrifying granules to improvement of nitrification activity in activated sludge process. / Kishida, Naohiro; Totsuka, Ryo; Kono, Atsushi; Kurasawa, Mikiya; Ogiwara, Motoki; Tsuneda, Satoshi.

In: International Journal of Environment and Waste Management, Vol. 7, No. 1-2, 2011, p. 103-111.

Research output: Contribution to journal › Article › peer-review

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