نتایج جستجو برای: صافی شنی تند خودکار automatic rapid sand filter

تعداد نتایج: 592359  

Journal: :Water science and technology : a journal of the International Association on Water Pollution Research 2011
Annalisa Onnis-Hayden Bryan B Hsu Alexander M Klibanov April Z Gu

A new sand filtration water disinfection technology is developed which relies on the antimicrobial properties of hydrophobic polycations (N-hexylated polyethylenimine) covalently attached to the sand's surface. The efficacy of the filter disinfection process was evaluated both with water spiked with E. coli and with real aqueous effluent from a wastewater treatment plant. For the former, over 7...

2008
L. Duan W. Li C. Ding B. Lv G. Wang X. Ma Y. Qu W. He H. Han

Efficiently making use of granular activated carbon (GAC) to reduce pollution is always a golden goal for water industry. We developed ultrasonication collection method for determination of the biomass and microbial attachment and growth in activated carbon filter. Based on this method, we found that using hydraulic cycle to immobilize cells onto GAC can greatly improve the attachment of inocul...

Journal: :Journal of Research in Engineering and Applied Sciences 2018

Journal: :Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 2015

1999
Jeffrey P. Brown Anders O. Wistrom

In primary effluent filtration (PEF), primary effluent is treated to reduce TSS, BOD, or other contaminants without resorting to secondary treatment in trickling filters or activated sludge basins. If PEF can meet the effluent quality requirements applicable to a wastewater stream, substantial cost reductions can be realized by using PEF instead of secondary treatment. In other instances, PEF c...

Journal: :Journal of Manufacturing Processes 2017

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