Results 61 to 70 of about 71,385 (248)

The effectiveness of anaerobic digestion in removing estrogens and nonylphenol ethoxylates [PDF]

open access: yes, 2012
This is the post-print version of the final paper published in Journal of Hazardous Materials. The published article is available from the link below. Changes resulting from the publishing process, such as peer review, editing, corrections, structural ...
A. Soares   +48 more
core   +1 more source

Technobiological Pathways for High‐CO₂ Capture Using Micro‐/Macroalgae: Genetic Engineering, Process Automation, and Value‐Added Bioproducts

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Greenhouse gas (GHG) emissions have emerged as one of the most critical drivers of climate change; this is primarily due to high concentrations and long atmospheric life of carbon dioxide (CO2). For a significant amount of time, various biological processes such as microalgal cultivation, cyanobacterial systems, photosynthetic microorganisms ...
Sadhana Semwal, Harish Chandra Joshi
wiley   +1 more source

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

open access: yesAlexandria 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
doaj   +1 more source

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

open access: yes, 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]

open access: yes, 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   +4 more
core   +2 more sources

Nocardia effects in waste activated sludge

open access: yesWater Science and Technology, 1998
Two effects of Nocardia in waste activated sludge (WAS) were investigated: (i) the influence of WAS in the solids treatment recycle streams on Nocardia persistence in the activated sludge, and (ii) the effect of Nocardia in WAS on anaerobic digester foaming.
Wendell Kido   +2 more
openaire   +1 more source

Sustainable Graphene Oxide–Intercalated Bentonite Composite for the Effective Removal of Imidacloprid From Water: Adsorption Performance, Isotherm, and Kinetics

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Water is a fundamental necessity for our existence, but its rapid contamination is causing devastating effects on the environment and health of living species worldwide. Adsorptive removal of pollutants is one of the popular water treatment techniques because of its simplicity, affordability, and the broad range of available adsorbents.
Priyanka Negi   +3 more
wiley   +1 more source

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

open access: yesJournal 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
doaj   +1 more source

Inoculum selection influences the biochemical methane potential of agro-industrial substrates [PDF]

open access: yes, 2015
Obtaining a reliable estimation of the methane potential of organic waste streams in anaerobic digestion, for which a biochemical methane potential (BMP) test is often used, is of high importance.
Angenent, Largus T   +7 more
core   +2 more sources

Bioplastic polyhydroxyalkanoate conversion in waste activated sludge

open access: yesJournal of Environmental Management
Polyhydroxyalkanoates (PHA) have been proposed as a promising solution for plastic pollution due to their biodegradability and diverse applications. To promote PHA as a competitive commercial product, an attractive alternative is to produce and recover PHA in the use of mixed cultures such as waste activated sludge from wastewater treatment plants. PHA
Rui Guo   +3 more
openaire   +2 more sources

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