Results 61 to 70 of about 12,362,107 (386)

On the Non-Newtonian Fluid Equation with a Source Term and a Damping Term

open access: yesJournal of Function Spaces, 2018
A kind of non-Newtonian fluid equation with a damping term and a source term is considered. After giving a result of the existence, if the diffusion coefficient is degenerate on the boundary, the local stability of the weak solutions is established ...
Huashui Zhan, Yongping Li
doaj   +1 more source

Extended aeration : a comparative study between prefabricated reinforced fiberglass and concrete cast in-situ plants [PDF]

open access: yes, 2007
The choice of wastewater treatment plants for any application depends on the quality of raw sewage, the required quality of treated water and the economics resources available to pay for both capital cost and operating cost of the treatment plants.
Abdul Razik, Mohd. Shukri
core  

Influence of operating parameters on the biodegradation of steroid estrogens and nonylphenolic compounds during biological wastewater treatment processes [PDF]

open access: yes, 2009
This document is the unedited author's version of a Submitted Work that was subsequently accepted for publication in Environmental Science & Technology, copyright © American Chemical Society after peer review.
Ahel M.   +55 more
core   +1 more source

Electrochemical Nitrate Reduction Reaction to Ammonia at Industrial‐Level Current Densities

open access: yesAdvanced Science, EarlyView.
This review starts from the mechanism and theoretical basis of electrochemical nitrate reduction reaction (NO3−RR), and systematically summarizes and discusses the design strategies of industrial‐level current density catalysts. In addition, the progress of industrial‐level NO3−RR‐based electrolyzers, including flow reactor and membrane electrode ...
Zhijie Cui   +4 more
wiley   +1 more source

Bio-Refinery of Organics into Value-Added Biopolymers: Exploring the Effects of Hydraulic Retention Time and Organic Loading Rate on Biopolymer Harvesting from a Biofilm-Based Process

open access: yesToxics
This study aimed to examine the impacts of hydraulic retention time (HRT) and organic loading rate (OLR) on the alginate-like exopolymers’ (ALEs) recovery potential from a biofilm-based process.
Qingna Shang   +6 more
doaj   +1 more source

Variability of wastewater discharge from a selected sewage system in Jaworzno

open access: yesActa Scientiarum Polonorum. Formatio Circumiectus, 2020
Aim of the study: The aim of the paper was to analyze the influence of atmospheric precipitation on the variability of wastewater outflow from a selected sewerage system in southern Poland. The research period was the years 2011-2016. The daily outflows
Krzysztof Chmielowski
doaj   +1 more source

Enhanced Photocatalytic Wastewater Purification and Bacterial Elimination via Copper Ion Irradiation‐Induced Modification of BiOCl

open access: yesAdvanced Science, EarlyView.
This study presents a copper ion irradiation method to achieve the modification function of BiOCl. By using high‐energy ion beams to introduce impurity ions inside the material, the intrinsic electric field of BiOCl is optimized, promoting the separation of photogenerated carriers and enhancing the photocatalytic activity.
Sihan Ma   +12 more
wiley   +1 more source

Synergistic phosphorus removal mechanism of Tetrasphaera enrichment in a micro-pressure swirl reactor

open access: yesnpj Clean Water
To investigate the effect of Tetrasphaera’s enrichment on phosphorus removal mechanism, three micro-pressure swirl reactor (MPSR) groups were used to experiment on sewage treatment under different SRT (17.2, 50.8, and 68.2 d).
Ge Yu   +8 more
doaj   +1 more source

Effect of different bulking agents on the quality, microbial community structure and metabolic functions during human feces composting in foam composting device

open access: yesFrontiers in Microbiology
Aerobic composting represents an efficacious strategy for the disposal of human feces, yet investigations into the effects of different bulking agents on this process remain limited. This study investigated the effects of composting human feces with four
Tianyang Ning   +12 more
doaj   +1 more source

Assessment of efficiency of rural sewage treatment plant with bioreactor

open access: yesActa Scientiarum Polonorum. Formatio Circumiectus, 2019
Research aims The aim of the conducted research was to assess efficiency of sewage treatment in rural areas in a sewage treatment plant with a sequencing batch reactor (SBR).
Agnieszka Cupak   +3 more
doaj   +1 more source

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