Results 71 to 80 of about 72,213 (262)

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
doaj   +1 more source

Denitrification Capacity of Volatile Fatty Acids from Sludge Fermentation: Lab-Scale Testing and Full-Scale Assessment

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, Arianna Catenacci, Elena Ficara   +2 more
doaj   +1 more source

Process for purification of waste water produced by a Kraft process pulp and paper mill [PDF]

, 1979
The water from paper and pulp wastes obtained from a mill using the Kraft process is purified by precipitating lignins and lignin derivatives from the waste stream with quaternary ammonium compounds, removing other impurities by activated carbon produced
Humphrey, M. F.
core   +1 more source

Characterization of natural Yemeni zeolites as powder sorbents for ammonium valorization from domestic waste water streams using high rate activated sludge processes [PDF]

, 2018
BACKGROUND In this study three natural Yemeni zeolites (NZ1, NZ2 and NZ3) having major minerals such as clinoptilolite and mordenite, were evaluated as low cost sorbents for the removal and recovery of ammonium ions.
Alouani, Rabeh, Cortina Pallás, José Luís, Hadj Amara, Abdesslem Ben, Hermassi, Mehrez, Jmayai, Amel   +4 more
core   +2 more sources

Extracellular polymers of ozonized waste activated sludge

Water Science and Technology, 2001
Effect of ozonation on characteristics of waste activated sludge was investigated in the current study. Concentrations of cell-bound extracellular polymers (washed ECPs) did not change much upon ozonation, whereas the sum of cell-bound and soluble extracellular polymers (unwashed ECPs) increased with increasing ozone dose.
J C, Liu, C H, Lee, J Y, Lai, K C, Wang, Y C, Hsu, B V, Chang   +5 more
openaire   +2 more sources

Use of Clotrimazole in Finfish Aquaculture: Mechanistic Insights, Limitations, and Future Directions for Antifungal Therapy

Animal Research and One Health, EarlyView.
This review critically evaluates clotrimazole as a potential antifungal for finfish aquaculture, highlighting strong mechanistic and in vitro efficacy against aquatic mycoses alongside major gaps in in vivo evidence, toxicokinetics, residue safety, and environmental risk, outlining priorities for responsible therapeutic development and regulatory ...
Arya Sen, Debashri Mondal, Thangapalam Jawahar Abraham   +2 more
wiley   +1 more source

Optimization of mesophilic anaerobic digestion of a conventional activated sludge plant for sustainability

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, Jay Rajapakse, Graeme J. Millar, Imtiaj Ali   +3 more
doaj   +1 more source

A sustainable business ecosystem: a case study demonstrating biochar's potential

Biofuels, Bioproducts and Biorefining, EarlyView.
Abstract The need for renewable, climate‐friendly resources has become urgent as legislators worldwide have sought to find ways to cut emissions while ensuring resource security for consumers. The use of biochar could help to achieve these goals. This study examines the current state of commercial biochar production and the maturity of the related ...
Kivijakola Juuso, Erkheikki Eemeli, Lukka Viljo, Tervonen Pekka, Harri Haapasalo   +4 more
wiley   +1 more source

Excess Sludge Reduction Using a High-pressure Jet Device via a Modified Ludzack-Ettinger Process: Performance and Microbial Communities

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, Ayaka Hosoe, Tomoyuki Hori, Masaaki Hosomi, Akihiko Terada   +4 more
doaj   +1 more source

A critical review of resource recovery from municipal wastewater treatment plants : market supply potentials, technologies and bottlenecks [PDF]

, 2020
In recent decades, academia has elaborated a wide range of technological solutions to recover water, energy, fertiliser and other products from municipal wastewater treatment plants.
Dewulf, Jo, Garfí, Marianna, Kehrein, Philipp, Osseweijer, Patricia, Posada, John, van Loosdrecht, Mark   +5 more
core   +1 more source