SBR technology for high ammonium loading rates.
This paper focuses on the study of high ammonium concentrated wastewater with SBR reactors. Four type of wastewaters, landfill leachates (T=20 degrees C) and the reject water (T=35 degrees C) coming from mesophilic anaerobic digesters of sewage sludge, pig slurry and organic fraction of municipal solid waste (OFMSW), were studied in four SBR during 6 months. The removal of nitrogen was done in all the cases with nitrification/denitrification via nitrite obtaining high removal nitrogen conversions for the three types of reject water (0.75-0.85 kg N day(-1) m(-3)) and lower for landfill leachates due to temperature requirements (0.3 kg N day(-1) m(-3)).
Galí
A
A
Department of Chemical Engineering, University of Barcelona, Martí i Franquès, no. 1, 6th floor, 08028, Barcelona, Spain.
Dosta
J
J
López-Palau
S
S
Mata-Alvarez
J
J
D000383:Agriculture; D000693:Anaerobiosis; D000818:Animals; D019149:Bioreactors; D009573:Nitrites; D000644:Quaternary Ammonium Compounds / Q000737:chemistry*; D012722:Sewage / Q000737:chemistry; D013552:Swine; D013696:Temperature; D014865:Waste Disposal, Fluid / Q000295:instrumentation / Q000379:methods; D014874:Water Pollutants, Chemical; D018508:Water Purification / Q000295:instrumentation* / Q000379:methods*
D009573:Nitrites; D000644:Quaternary Ammonium Compounds; D012722:Sewage; D014874:Water Pollutants, Chemical