The removal of ammonia, arsenic, iron and manganese by biological treatment from a small Iowa drinking water system.

ABSTRACT: Although not regulated in United States drinking water, ammonia has the potential to increase chlorine consumption and cause nitrification problems in the distribution system. Many groundwaters with elevated ammonia are also contaminated with other inorganic analytes such as arsenic, iron, and manganese, all of which have primary or secondary maximum contaminant levels (MCLs). The objective of this work was to demonstrate the effectiveness of an innovative biological treatment process to simultaneously remove ammonia (2.9 mg N per L), arsenic (23 μg L^-1), iron (2.9 mg L^-1) and manganese (80 μg L^-1) from a groundwater source in Iowa. The biological treatment system consisted of an "aeration contactor" followed by a conventional granular media filter. Orthoph

SUBMITTER: Lytle DA 

PROVIDER: S-EPMC7898138 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature