Results 51 to 60 of about 1,804,647 (233)
Chemical and biological phosphorus removal in the activated sludge process [PDF]
, 1980 Bibliography: leaves 86-88.This investigation set out to establish in what degree the phosphorus removal characteristics of the Modified Activated Sludge Process could be enhanced by the in-plant addition of iron salts.
Rabinowitz, Barry
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Technological Solution of Biogas Output Increasing at Grain Distillery Spent Wash Fermentation
Innovative Biosystems and Bioengineering, 2018 Background. Distillery spent wash is the main waste of the alcohol industry. This is highly concentrated wastewater, which is characterized by high chemical oxygen demand (COD) values – up to 60–120 g O2/dm3 – and low pH values – up to 3.7. It makes its
Nataliia Golub, Mariana Potapova
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Fermentation, 2023 This work provides insights into the possibility of integrating recovered volatile fatty acids (VFAs) into biological nitrogen removal processes. VFAs are the main products of the acidogenic fermentation of waste sludge and are an effective carbon source
Matteo Grana +2 more
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Advanced Materials Technologies, EarlyView.Chitin‐chitosan cryogels with degrees of N‐acetylation from 12.2% to 71.4% are fabricated by dissolution, coagulation and lyophilization for the sequestration of heavy metals from water. Colorimetry and differential pulse voltammetry showed controlled adsorption and desorption capacities for As5+, Co2+ and Cu2+, making this material attractive for ...
Marta García‐Castrillo +4 more
wiley +1 more source
Alexandria Engineering Journal, 2019 Potential of nutrient recovery as struvite (NH4MgPO4·6H2O) with sole waste activated sludge (WAS) of a conventional activated sludge treatment plant has been investigated using computational modelling supported by laboratory experiments.
Chathurani Moragaspitiya +3 more
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Journal of Water and Environment Technology, 2020 Excess sludge reduction is a central challenge in wastewater treatment, requiring a cost-effective technology. Here, we report the pilot-scale implementation of two Modified Ludzack-Ettinger (MLE) processes with and without a high-pressure jet device ...
Hiroyuki Yoshino +4 more
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Occurrence of Clostridium difficile in two types of wastewater treatment plants
Journal of the Formosan Medical Association, 2015 Wastewater is a potential environmental source of Clostridium difficile, although a direct link with community-acquired C. difficile infection (CA-CDI) in humans has not yet been established. The present study was performed to determine the occurrence of
Mahnaz Nikaeen +3 more
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The development of a three phase plant-wide mathematical model for sewage treatment [PDF]
, 2011 Includes abstract.Includes bibliographical references.To aid in finding the most cost effective methods for the design and operation of wastewater treatment plants, for minimization of energy consumption and cost while maximizing nutrient recovery and ...
Ikumi, David S
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Asia-Pacific Journal of Chemical Engineering, EarlyView.ABSTRACT The presence of antibiotics in water not only causes environmental pollution but also increases the growth of antibiotic‐resistant bacterial genes, which pose serious threats to human beings and other water residents. Large numbers of people are reportedly affected by the resistant bacterial genes, as many broad‐spectrum antibiotics are not ...
Amir Zada, Shohreh Azizi
wiley +1 more source
Agronomy Science, 2004 The influence of fertilization with composted mixtures of waste activated sludges with CaO or ash from brown coal on the content of calcium, magnesium, potassium and sodium in the tested plants was studied.
Stanisław Kalembasa +1 more
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