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 […]
Tag Archives: Research
WEF Fellow Equips New Generation of Professionals with Knowledge
September 18, 2018
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April Z. Gu has loved water since she was very young. Combined with her inherent curiosity and a self-proclaimed drive to “get to the bottom of everything,” this love led Gu to research water topics. Gu’s contributions to water research and to the Water Environment Federation (WEF; Alexandria, Va.) earned her a spot among the […]
WER Article Explores Benefits of Indirect Potable Reuse
August 30, 2018
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Potable reuse can bring many benefits, even when compared to typical water management practices. University of Nevada (Reno) researchers conducted a triple-bottom-line assessment of the benefits of reclaimed water management strategies. Their article, which appears open-access in the August issue of Water Environment Research (WER), presents their work examining how potable use of reclaimed water […]
WEF Fellow Influences Biosolids Management Practices Around the World
July 31, 2018
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James (Jim) E. Smith Jr., grew up in a family that worked in water. His grandfather operated a fishing boat and his uncle managed a Greater Cincinnati Water Works water resource recovery facility (WRRF). “I always loved being in and around water,” Smith said. This love led him to enter a more-than-50-year career that began […]
U.S. SJWP Winner Embarks on Mission: Heavy Metal Remediation
July 30, 2018
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Oklahoma high school student takes metal-removing system to Stockholm Braden Milford had a mission: develop a system that could remove heavy metals from waterways. The Tulsa, Okla., high school student successfully accomplished this mission using alginate beads. For his project, Milford won the 2018 U.S. Stockholm Junior Water Prize (SJWP) competition. In August, he will […]
WER Article Reviews Use of Nitritation-Annamox Process
July 29, 2018
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Researchers have reviewed the challenges of using the nitritation-anammox process (NAP) for biological nitrogen removal in wastewater treatment. The open-access article describing their findings appears in the July issue of Water Environment Research (WER). When compared with conventional biological nitrogen removal methods in sidestream settings, NAP has the potential to reduce oxygen requirements for wastewater […]
WER Article Examines Microconstituent Removal in Activated Sludge Systems
June 23, 2018
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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 […]
Water and Energy Meet at UC Irvine
June 21, 2018
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University launches Water-Energy Nexus certificate program Water systems once were built under the assumption that the energy they needed to operate would be cheap and abundant. The design of most energy systems presumed the same about water. Turns out, both are no longer true. Engineers today recognize that water and energy are connected in ways […]
September 27, 2018
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