Tag Archives: Activated sludge

Thickened Waste Activated Sludge Research Showcased in September WER

September 27, 2018

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WER Cover Featured

Researchers investigated the unbiodegradable fraction of particulate chemical oxygen demand (PCOD) in thickened waste activated sludge (TWAS). They used semi-continuous completely-mixed anaerobic digesters for the study. A laboratory-scale system was operated at detention times ranging from 16.7 to 33.3 days with organic loading rates between 1.21 and 3.47 kg/L m3. The article, “Estimation of the […]

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WER Article Examines Microconstituent Removal in Activated Sludge Systems

June 23, 2018

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WER June 2018 Cover Featured

In the June issue of Water Environment Research (WER), an open-access research article explores the best model to use when examining the fate of microconstituents in wastewater. In the article, “General Fate Model for Microconstituents in an Activated Sludge System,” researchers discuss evaluating biodegradation models for the microconstituents 17-ethinylestradiol, bisphenol-A, and triclosan. The study identifies […]

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Open-Access Research in WER Examines Fine-Pore Oxygen Transfer

May 25, 2018

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WER Cover May 18 Featured

The open-access article in the May issue of the journal, Water Environment Research (WER), examines factors affecting oxygen transfer in activated sludge processes. “In their critical review of factors affecting fine-pore oxygen-transfer modeling, Baquero-Rodríguez et al. delineate the major model inputs and variables and how they are affected by operating conditions,” said Tim Ellis, WER editor-in-chief. […]

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WEF Releases Updated Activated Sludge and Nutrient Removal Publication

October 20, 2017

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Activated Sludge and Nutrient Removal Featured

The Water Environment Federation (WEF; Alexandria, Va.) offers the third edition of Activated Sludge and Nutrient Removal, Manual of Practice OM-9, the latest update to the popular reference for operation of the activated sludge process. The extensively revised publication provides expanded content on process control with step-by-step examples for calculations, a new laboratory chapter with detailed directions for […]

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California Operator Leaves a Legacy for Future Professionals

June 15, 2017

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MyWaterLegacy - David Hayden Featured

David Hayden, Irvine Ranch Water District operations supervisor David Hayden has been a member of the Water Environment Federation (WEF; Alexandria, Va.) and Santa Ana River Basin Section of the California Water Environment Association (CWEA) since 1992. He is a Grade III operator in California and was recognized as CWEA Operator of the Year in […]

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Learn About LIFT Link and Biofilms in February Webcasts

January 14, 2017

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Discover LIFT Link and How It Can Help You LIFT Link, the new online platform for collaboration and innovation from the Leaders Innovation Forum for Technology (LIFT), is available now. Learn how to use this resource to discover new technologies, share your research and technology needs, and connect with experts and potential partners for information […]

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Forum Focuses on Intensifying Technologies and Partnerships

October 27, 2015

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Water sector professionals attending the 2015 Intensification of Resource Recovery (IRR) Forum attendees gather to hear an update on emerging shortcuts to nitrogen removal. Water Environment Federation (Alexandria, Va.) photo/Laura Herman.

Jeanette Brown, WEF past president and Manhattan College (Bronx, N.Y.) professor Jeanette Brown served as president of the Water Environment Federation (WEF; Alexandria, Va.) from 2010 to 2011. Currently, she teaches environmental engineering courses for both graduates and undergraduates at Manhattan College (Bronx, N.Y.). Prior to that, she was executive director of the Stamford (Conn.) […]

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Upcoming WEF Webcasts Cover Pipeline Assessment, Biofilm Reactors, Lab Improvements, and Codigestion

March 13, 2015

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Fundamentals and Emerging Advancements in Biofilm Reactor Technologies Learn the basics of design and operation of biofilm processes for municipal wastewater treatment in this webcast. Process definitions, structure, existence, applications as well as the advantages and disadvantages of biofilm compared to activated sludge systems will be discussed. Speakers will present examples of water resource recovery […]

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