Does Methane Contribute to Growth of Invertebrate Communities in Drinking Water?

Methane is a potential source of carbon in drinking water. Typically, it removed at waterworks during an initial treatment step such as aeration or stripping. Remaining methane may be converted by methane-oxidizing bacteria to organic carbon, which then available for heterotrophic growth and ultimately contribute invertebrate growth. We investigated the presence invertebrates with incomplete removal without methane. Microscopy analyses 16S 18S ribosomal genes were conducted on filter sand from full-scale biological rapid filters. Primary filters dominated methane- ammonia-oxidizing bacteria. Upper layers secondary bacteria, while deepest layer contained 92% eukaryote DNA. Rotifers, nematodes, platyhelminths annelids constituted 22% DNA Filters higher shares (13%) than (7%). Furthermore, pilot studies estimate suitable levels when implementing technologies. concentrations 0.24 mg/L caused visible Vacuum stripping nitrogen addition 0.018–0.03 prevented