نتایج جستجو برای: slow sand filter
تعداد نتایج: 257614 فیلتر نتایج به سال:
Rendering of sand is an interesting problem that has been addressed at various times in the past. Most efforts have been in the direction of rendering moving sand grains, which are handled as particles rendered with motion-blur. More recently, there have also been efforts at rendering slow moving and static sand particles. In such cases, accurate sampling and rendering of particles becomes impo...
Moving bed biofilm reactor (MBBR) is a process in which attached growth is utilized for wastewater treatment. This process does not require sludge recycling or backwash. Activated sludge processes can be promoted to an MBBR by adding media to an aeration tank. Rapid sand filter is a physical method for the removal of total suspended solids (TSS) in advanced wastewater treatment. The purpose of ...
BACKGROUND Appropriate methodology for storage biological materials, extraction of DNA, and proper DNA preservation is vital for studies involving genetic analysis of insects, bacteria, and reservoir hosts as well as for molecular diagnostics of pathogens carried by vectors and reservoirs. Here we tried to evaluate the utility of a simple filter paper-based for storage of insects, bacteria, rod...
Landfill leachates are repeatedly found contaminated with organic pollutants, such as alkylphenols (APs), phthalates and polycyclic aromatic hydrocarbons (PAHs) at levels exceeding water quality standards. It has been shown that these pollutants may be present in the colloidal and truly dissolved phase in contaminated water, making particle separation an inefficient removal method. The aim of t...
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