This book contains literature review and research work on latest techniques for wastewater treatment. Municipal wastewater plants (WWTPs) are facing problems which include energy consumption and cost effectiveness. Such kind of challenges can be reduced by hybrid electrochemical reactor with membrane technology. The results by using this EMR system shows a maximum power generation of 0.980938 mW/m2 and removal of COD upto 34%. Electricity production from this EMR system can supply the required power needed for treatment process and EMR can also reduce contaminants from wastewater. Hence, electrochemical membrane reactor (EMR) is a potential advanced treatment technology for treating wastewater.