Ufuk Erdal will attend and present at the American Water Works Association (AWWA) and the American Membrane Technology Association’s (AMTA) Membrane Technology Conference and Exposition happening in San Antonio, Texas February 1-5.

By: Ufuk Erdal, CH2M Senior Technologist and Regional Technology Leader for Water Reuse

CH2M Senior Technologist and Regional Technology Leader Ufuk Erdal will answer the question, “Is ozone pretreatment the best approach for improving microfiltration (MF)/ultrafiltration (UF) productivity?” on Wednesday, February 3 at 3:30 p.m. This written work is co-authored by CH2M Principal Technologist and Regional Technology Leader in Wastewater Zeynep Erdal. Ufuk is also the author of “Status of Potable Reuse in California: History, Regulations and Projects” which he will discuss on Tuesday, February 2 at 2:00 p.m.

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Many wastewater treatment plants near coastal California were designed to meet ocean discharge limits, primarily for two gross parameters which include biochemical oxygen demand and total suspended solids. Several of these facilities are non-nitrifying and short solids retention time (SRT) activated sludge plants. Although these facilities can satisfy their ocean discharge limits, the short SRT operation is a challenge when tertiary membrane facilities are designed and operated. Short SRT does not provide means to form strong settable/filterable flocs. As a result, short SRT activated sludge plant effluents generally have a higher turbidity and contain much more fine particles than longer SRT plants. Furthermore, long organic molecules such as polysaccharides and carbohydrates are not completely degraded in short SRT facilities. Those compounds foul the membranes, increase cleaning frequency of the membranes and reduce productivity. Consequently, several approaches have been considered to manage excessive membrane fouling and restore membrane productivity. At the Membrane Technology Conference and Exposition, I will discuss my research and recommendations for improving MF/UF productivity.

Preceding this conversation, I will lead a discussion about the “Status of Potable Reuse in California: History, Regulations and Projects” with CH2M Global Technology Leader for Water Reuse Larry Schimmoller. Together, we will examine how groundwater recharge regulations have evolved, the type of projects implemented over the time, the current status of indirect potable reuse (IPR) via surface water augmentation, and direct potable reuse regulations. I look forward to continuing the dialogue with you at the AWWA-AMTA conference.

Join me at the Membrane Technology Conference and Exposition this week to learn more about the latest developments in membrane technology.

Ufuk Erdal is CH2M’s senior technologist, regional technology leader for water reuse, and deputy service leader based in Orange County, California. He specializes in advanced water treatment processes, such as membrane technologies, disinfection and advanced oxidation, activated carbon, as well as planning, designing, managing and delivering water reuse projects. Ufuk received his master’s and doctoral degrees in Civil Engineering from the Ohio State University and Virginia Polytechnic Institute and State University. 

 

 

Zeynep Erdal is CH2M’s principal technologist and regional technology leader for wastewater treatment based in Orange County, California. She specializes in planning, condition and capacity assessment and design wastewater treatment facilities. Zeynep received her master’s and doctoral degrees in Civil Engineering from the Ohio State University and Virginia Polytechnic Institute and State University.