Anaerobic filter

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In sewage treatment systems, an anaerobic filter (AF) is a form of anaerobic digester. The digestion tank contains a filter medium where anaerobic microbial populations—organisms that live in the absence of oxygen — can establish themselves. Such filters are commonly employed in the treatment of waste water. These reactors are gaining in popularity versus more established aerobic waste-water treatment systems because they produce a less solid residue[1] than do other types of filter.

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  1. ^ Mastronardi, Federica; Gutmann, Bernhard; Kappe, C. Oliver (2013). "Continuous Flow Generation and Reactions of Anhydrous Diazomethane Using a Teflon AF-2400 Tube-in-Tube Reactor". Organic Letters. 15: 5590–5593. doi:10.1021/ol4027914.