TY - JOUR
T1 - Treatment performance of practical-scale down-flow hanging sponge reactor using sixth-generation hard sponge media
AU - Okubo, Tsutomu
AU - Iguchi, Akinori
AU - Takahashi, Masanobu
AU - Kubota, Kengo
AU - Uemura, Shigeki
AU - Harada, Hideki
N1 - Funding Information:
This study was supported in part by research grants from the Japanese Ministry of Education, Culture, Sports, Science and Technology (MEXT), the Japanese Ministry of Land, Infrastructure, Transport and Tourism (MLIT), Japan Society for the Promotion of Science (JSPS), and the Science and Technology Research Partnership for Sustainable Development (SATREPS).
Publisher Copyright:
© 2017 Desalination Publications. All rights reserved.
PY - 2017/10
Y1 - 2017/10
N2 - A down-flow hanging sponge (DHS) reactor with a lateral partition was filled with sixth-generation sponge media (DHS-G6), polyethylene sponges stiffened with epoxy resin, and third-generation sponge media (DHS-G3), polyethylene sponges wrapped in a plastic net, in a continuous experiment at a sewage treatment plant in India to assess and compare the treatment performances of the two sponge media. No clear differences between the different media were found in the removal of biochemical oxygen demand (BOD), ammonium nitrogen, and fecal coliform. The best performance was obtained at a hydraulic retention time of 2 h. The concentrations of respective components in the water treated by the DHS-G3 and DHS-G6 were as follows: BOD, 5 and 7 mg L–1; ammonium nitrogen, 4 and 6 mg N L–1; and fecal coliform, 3.2 × 104100 mL–1and 3.9 × 104100 mL–1. Performance levels fully satisfying the Indian discharge standards were obtained for removal of BOD and ammonium nitrogen, but not fecal coliform.
AB - A down-flow hanging sponge (DHS) reactor with a lateral partition was filled with sixth-generation sponge media (DHS-G6), polyethylene sponges stiffened with epoxy resin, and third-generation sponge media (DHS-G3), polyethylene sponges wrapped in a plastic net, in a continuous experiment at a sewage treatment plant in India to assess and compare the treatment performances of the two sponge media. No clear differences between the different media were found in the removal of biochemical oxygen demand (BOD), ammonium nitrogen, and fecal coliform. The best performance was obtained at a hydraulic retention time of 2 h. The concentrations of respective components in the water treated by the DHS-G3 and DHS-G6 were as follows: BOD, 5 and 7 mg L–1; ammonium nitrogen, 4 and 6 mg N L–1; and fecal coliform, 3.2 × 104100 mL–1and 3.9 × 104100 mL–1. Performance levels fully satisfying the Indian discharge standards were obtained for removal of BOD and ammonium nitrogen, but not fecal coliform.
KW - Down-flow hanging sponge
KW - Nitrification
KW - Removal of organics
KW - Sewage treatment
KW - Sponge media
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U2 - 10.5004/dwt.2017.20815
DO - 10.5004/dwt.2017.20815
M3 - Article
AN - SCOPUS:85037041514
SN - 1944-3994
VL - 91
SP - 48
EP - 54
JO - Desalination and Water Treatment
JF - Desalination and Water Treatment
ER -