Sewage treatment in an up-flow anaerobic sponge reactor followed by moving bed biofilm reactor based on polyurethane carrier material

Autor:	Enas Abu Taleb, Waleed El-Senousy, Ahmed Tawfik, Nagwa Badr
Rok vydání:	2012
Předmět:	Hydraulic retention time Waste management Moving bed biofilm reactor Chemistry business.industry Sewage Ocean Engineering Pulp and paper industry Pollution Fecal coliform Sewage treatment Nitrification business Anaerobic exercise Effluent Water Science and Technology
Zdroj:	DESALINATION AND WATER TREATMENT. :350-358
ISSN:	1944-3986 1944-3994
DOI:	10.5004/dwt.2011.2330
Popis:	Comparison of the performance of an up-flow anaerobic sponge reactor (UASR) versus a classical up-flow anaerobic sludge blanket (UASB) reactor for sewage treatment was investigated. Both reactors were operated at a hydraulic retention time (HRT) of 6.0 h and organic loading rate (OLR) of 2.3 kg COD m−3/d. The results obtained revealed that the UASR produced better effluent quality as compared to the UASB reactor. Residual values of CODtotal, CODsoluble and CODparticulate in the treated effluent of UASR were 170 ± 54, 88 ± 36 and 82 ± 41 mg/l, respectively. Corresponding values in the UASB reactor effluent were 247 ± 69, 120 ± 40 and 127 ± 74 mg/l respectively. Furthermore, residual values of VFA-COD, oil and grease were quite less in the effluent of UASR. The removal efficiencies of faecal coliform (FC) and faecal streptococci (FS), in both reactors did not exceed one log10. However, the geometric mean of residual bacterial count was less in case of UASR. Moreover; excess sludge production from U...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::207f8d4dd8ee0397dc9a38cce907920d https://doi.org/10.5004/dwt.2011.2330 Zobrazit plný text záznamu