نتایج جستجو برای: influence of backwashing parameters
تعداد نتایج: 21198543 فیلتر نتایج به سال:
We evaluated the efficiency of five membrane filters for recovery of Cryptosporidium parvum oocysts and Giardia lamblia cysts. These filters included the Pall Life Sciences Envirochek (EC) standard filtration and Envirochek high-volume (EC-HV) membrane filters, the Millipore flatbed membrane filter, the Sartorius flatbed membrane filter (SMF), and the Filta-Max (FM) depth filter. Distilled and ...
The anaerobic osmotic membrane bioreactor (AnOMBR) system was evaluated for the treatment of high-strength synthetic textile wastewater. chemical oxygen demand (COD) concentration above 3,000 mg/L and color 1,300 Pt-Co in study divided into six cycles roughly nine days each. Mono ammonium phosphate with 1 M used as draw solution. Average COD removal efficiencies from were 57% ± 5% 43.7% 6%, res...
experimental investigation of the surface roughness in grinding of bk7 optical glass in brittle mode
surface roughness is a significant parameter which determines the efficiency of optical components. surface damages induced by grinding strongly influence the mechanical strength and optical quality of optical glasses. it is meaningful to rapid evaluate the surface roughness through the measurement of different grinding parameters. in this study, a cup diamond wheel (d64) is used in grinding pr...
since the 1960s the age effects on learning both first and second language have been explored by many linguists and applied linguists (e.g lennerberg, 1967; schachter, 1996; long, 1990) and the existence of critical period for language acquisition was found to be a common ground of all these studies. in spite of some common findings, some issues about the impacts of age on acquiring a second or...
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