Author： Merlo Rion Gerhardt Matthew B Burlingham Fran De Las Casas Carla Gill Everett Flippin T. Houston
Publisher： Water Environment Federation
ISSN： 1061-4303
Source： Water Environment Research, Vol.83, Iss.11, 2011-11, pp. : 2067-2078
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.
Abstract
A pilot study was performed over 91 days to determine if the activated sludge process could treat a segregated stripped sour water (SSW) stream from a petroleum refinery. The study was performed in two periods. The first period was terminated after 19 days, as a result of excessive sludge bulking. The elimination of sludge bulking during the 70-day second period is attributed to operational changes, which included aerating the influent to oxidize reduced sulfur, adjusting the influent pH, and adding micronutrients to satisfy biological requirements. The pilot plant provided a chemical oxygen demand (COD) removal of up to 93%. Nitrification was achieved, with effluent ammonia values <1 mg-n .="" these="" results="" indicate="" that="" direct="" treatment="" of="" ssw="" with="" the="" activated="" sludge="" process="" is="" possible="" and="" has="" direct="" application="" to="" full-scale="" petroleum="" refinery="" wastewater="" plant="" upgrades.="">
Related content
Access to resources
Recommend
By Andres Hank W. Kujawski David G. Schraa Oliver J. Lin Che-Jen Wong Arthur D.
Proceedings of the Water Environment Federation, Vol. 2011, Iss. 15, 2011-01 ,pp. :