Advanced Treatment Methods For The Removal Of Endocrine Disrupting Compounds From Municipal Wastewater Microform

The removal of endocrine disrupting compounds (EDCs) from municipal wastewater by conventional and advanced wastewater treatment methods was investigated. Effluent from a membrane bioreactor (MBR), on average, contained lower EDC concentrations than a conventional (activated sludge) treatment plant receiving the same influent wastewater. MBR effluent was also disinfected to meet California State Guidelines (Title 22) for water reuse using chlorine, chloramines, chlorine dioxide and UV. Disinfection was not shown to impact EDC concentrations except for Bisphenol A (95% removal). MBR effluent was also treated using a bench-scale RO membrane system. The RO reduced all EDCs monitored, except BPA, to non-detectable levels (

In the last years the release of emerging pollutants such as Endocrine Disruptors (EDCs), Pharmaceuticals and Personal Care Products (PPCPs) into the environment has raised great concern. While investigating how to treat emerging pollutants from water and wastewater, researchers have drawn attention on the implementation of more environmentally friendly technologies able to achieve high removal efficiency at low costs. Emerging Compounds Removal from Wastewater by Green Technologies: Natural and Solar Based Treatments introduces green chemistry in relation to these treatment technologies. More specifically, this volume: • Reviews the suitability of alternative adsorption processes that use natural adsorbents natural materials or agricultural waste in light of the inefficiency of conventional wastewater treatment plants; • Evaluates the potential of constructed wetlands for the removal of some categories of trace contaminant of worldwide relevance in view of their application as decentralized systems; • Highlights the promising role of a special class of oxidation techniques defined as Advanced Oxidation Processes (AOPs) supported by sunlight. This volume will be of great interest to students, technicians, and academics alike who are interested in evaluating and selecting the technologies that lead to better and more sustainable treatment of this huge class of pollutants.

The presence of endocrine disrupting compounds (EDCs) and pharmaceutically active compounds (PhAC) such as pesticides, personal care products, antibiotics and pharmaceutical compounds, in sewage, industrial, and domestic waters has extensively become the major concern for health and environmental organizations. These compounds have the ability to interact with mammalian endocrine system and disrupting their functions. The traditional activated sludge processes are designed to degrade solids, organic carbon and nitrogen loading. Although several treatment steps in a wastewater treatment plant can contribute to partial removal of EDCs, effective removal has been a challenge due to their resistant chemical and biological degradation and extreme low concentrations. Membrane bioreactor (MBR) used in this study is novella better water reclamation technology that shows several advantages including stable operation conditions due to long solid retention time (SRT); concentrated mixed liquor suspended solids (MLSS); and low F/M ration in comparison with conventional wastewater treatment. This research will utilize these advanced membrane technologies to develop wastewater treatment processes for removal of EDCs in order to recover and reuse wastewater to augment drinking water supplies. A set of model EDCs including acetaminophen, amoxicillin, atrazine, estrone, and triclosan were selected to study the removal by membrane bioreactor. Those compounds were chosen based on their concentrations present in Oklahoma and Arkansas wastewater and to represent each group of compounds. Optimized HPLC method was used for detection of these model compounds. A Lab-scale MBR operated with real wastewater was tested under different operating conditions, such as retention time and volatile suspended solids concentrations to remove the spiked EDCs. The module MBR can reach desired chemical oxygen demand COD (

"This project investigated the effectiveness of full-scale conventional and advanced water treatment processes for the removal of unregulated organic chemicals such as endocrine disrupting compounds (EDCs), pharmaceuticals and personal care products (PPCPs), and industrial and household use organic chemicals." -- website.