A case for aerobic sludge granulation: from pilot to full scale | Zendy

Honggang Yang | Zendy; Juan Li | Zendy; Jun Liu | Zendy; Libin Ding | Zendy; Tingna Chen | Zendy; Guolong Huang | Zendy; Jia-Man Shen | Zendy

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A case for aerobic sludge granulation: from pilot to full scale

Author(s) -

Honggang Yang,

Juan Li,

Jun Liu,

Libin Ding,

Tingna Chen,

Guolong Huang,

Jia-Man Shen

Publication year - 2015

Publication title -

journal of water reuse and desalination

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.548

H-Index - 16

eISSN - 2408-9370

pISSN - 2220-1319

DOI - 10.2166/wrd.2015.188

Subject(s) - granule (geology) , granulation , sequencing batch reactor , wastewater , mixed liquor suspended solids , bioreactor , chemistry , chemical oxygen demand , pulp and paper industry , suspended solids , sewage treatment , scale up , waste management , environmental science , environmental engineering , activated sludge , materials science , engineering , organic chemistry , classical mechanics , physics , composite material

A pilot-scale sequencing batch reactor (SBR) treating 120 m3/d of a town's wastewater was set up in 2009 and aerobic granules with a mean diameter of 0.28 mm, mixed liquor suspended solids (MLSS) of 7,500 mg/L and sludge volume index (SVI)30 of 43 mL/g were achieved. A full-scale SBR with 50,000 m3/d for treating a town's wastewater was operated in 2010 and aerobic granules with a mean MLSS of 2,285 mg/L and SVI30 of 52.5 mL/g were obtained. Aerobic granules had excellent performances of chemical oxygen demand (COD) and NH4+-N removal and remained stable for a long time. Raw wastewater and SBR operating mode had a positive effect on aerobic granule formation. Therefore, aerobic granular technology could be successfully applied in the full-scale bioreactor under specific conditions. Future development of aerobic granular technology is the application in full-scale continuous-flow reactors.

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