Removal of Cr (VI) in Anoxic and Sulfate-Reducing SBRs
Küçük Resim Yok
Tarih
2011
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
SCIENCE PRESS BEIJING
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Microbial uptake of Cr(VI) at 3.2-10.4 mg/L dosing pattern in weekly sequential periods was investigated under anoxic and sulfate-reducing conditions in sequential batch reactors (SBR). Cr (VI)'s fate and acute effect was also determined on nitrate and organic matter (COD) reduction of unacclimated sludge cultures with methanol as substrate. Chromium (VI) was removed at an efficient level throughout the study with adaptation signs. Chromium's inhibitory effect was not observed on nitrate reduction which reached high levels following a three week adaptation period where organic matter reduction correlated to other mechanisms than nitrate reduction was altered. A higher yield of 0.88 and a chromium removal in relation to biomass was obtained in anoxic conditions. Organic matter usage was inhibited in both SBR where sulfate reduction was altered at the maximum dosing and accumulated in the reactor.
Açıklama
3rd International Symposium on Environmental Science and Technology (2011 ISEST) -- JUN 01-04, 2011 -- Dongguan, PEOPLES R CHINA
Anahtar Kelimeler
Cr (VI), anoxic, nitrate reduction, sulfate reduction, SBR, inhibition
Kaynak
PROGRESS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY, VOL III: PROCEEDINGS OF THE 2011 INTERNATIONAL SYMPOSIUM ON ENVIRONMENTAL SCIENCE AND TECHNOLOGY
WoS Q Değeri
N/A
