A robust and accurate surrogate method for monitoring the frequency and duration of combined sewer overflows.

ABSTRACT: Discharges of untreated wastewater from combined sewer overflows (CSOs) can affect hydraulic stress and have significant environmental impacts on receiving water bodies. Common flow rate and water level sensors for monitoring of CSO events are expensive in terms of investment costs, installation, operation and maintenance. This paper presents a novel surrogate method to detect CSO events by using two low-cost temperature sensors. The novelty is the experimental setup for installation of temperature sensors in CSO structures and an algorithm developed to automatically calculate the duration of CSO events considering the response time of the system. The occurrence and duration of CSO events is computed based on the convergence of the two temperature signals. The method was tested under field

SUBMITTER: Hofer T 

PROVIDER: S-EPMC5846818 | biostudies-literature | 2018 Mar

REPOSITORIES: biostudies-literature