Dechlorination

An automatic pH–ORP (oxidation–reduction potential) titration device was developed and applied to dynamically control the wastewater chlorination and dechlorination doses in this study. In the pH–ORP titration and back-titration process, the monitoring peaks and valleys on the pH and ORP profiles co

Trichloroethylene (TCE) is a representative dense nonaqueous phase liquid (DNAPL) in groundwater. TCE as a form of free fluid has been treated by surfactant-enhanced aquifer remediation (SEAR). After application of SEAR, groundwater contains little amount of residual TCE and surfactant. Residual TCE