Effects of Heavy Metals on Activated Sludge ProcessWater Science and Technology - Tập 26 Số 3-4 - Trang 801-813 - 1992
Filiz B. Dilek, Ülkü Yetış
The purpose of this study was to evaluate the toxic effects of various heavy
metals on activated sludge process. Different concentrations of Cu(II) (0.5,
1.0, 5.0, and 10.0 mg/l), Ni(II) (5.0, 10.0, 25.0 mg/l), and Cr(VI) (1.0, 5.0,
10.0, 25.0, 50,0 mg/l) were maintained in a laboratory-seale completely mixed
activated sludge unit, without recycle, treating simulated wastewater. The feed
solution ... hiện toàn bộ
Aerobic biodegradation of gasoline oxygenates MTBE and TBAWater Science and Technology - Tập 43 Số 2 - Trang 277-284 - 2001
Gregory J. Wilson, Amy P. Richter, Makram T. Suidan, Albert D. Venosa
MTBE degradation was investigated using a continuously stirred tank reactor
(CSTR) with biomass retention (porous pot reactor) operated under aerobic
conditions. MTBE was fed to the reactor at an influent concentration of 150 mg/l
(1.70 mmol/l). A second identical reactor was operated as a control under the
same conditions with the addition of 2.66 g/l of sodium azide, to kill any
biological activ... hiện toàn bộ
Progress in sensor technology - progress in process control? Part I: Sensor property investigation and classificationWater Science and Technology - Tập 47 Số 2 - Trang 103-112 - 2003
Leiv Rieger, J. Alex, Stefanie Winkler, M. Boehler, Michael Thomann, Hansruedi Siegrist
To ensure correctly operating control systems, the measurement and control
equipment in WWTPs must be mutually consistent. The dynamic simulation of
activated sludge systems could offer a suitable tool for designing and
optimising control strategies. Ideal or simplified sensor models represent a
limiting factor for comparability with field applications. More realistic sensor
models are therefore r... hiện toàn bộ