The effect of advanced secondary municipal wastewater treatment on the molecular composition of dissolved organic matter.

ABSTRACT: There is a growing interest in water reuse and in recovery of nutrients from wastewater. Because many advanced treatment processes are designed to remove organic matter, a better understanding of the composition of dissolved organic matter (DOM) in wastewater is needed. To that end, we assessed DOM in the Nine Springs Wastewater Treatment Plant in Madison, Wisconsin by UV-visible spectroscopy and Fourier transform-ion cyclotron resonance mass spectrometry. Samples were collected from the influent and effluent of two different secondary treatment processes and their respective secondary clarifiers, the UV disinfection unit, and an Ostara treatment system, which produces struvite via chemical precipitation. The optical properties reveal that DOM throughout the plant is relatively aliphatic a

SUBMITTER: Maizel AC 

PROVIDER: S-EPMC5889132 | biostudies-literature | 2017 Oct

REPOSITORIES: biostudies-literature