Results 31 to 40 of about 90,434 (287)

Analysis of the chlorine consumption for oxidation of the cyanobacteria species Microcystis aeruginosa

open access: yesVértices, 2018
This study evaluated the chlorine consumption of the Microcystis aeruginosa species present in blooms in water supply sources, since the legislation requires the minimum maintenance of free residual chlorine should be 0.2 mg.L-1 or 2 mg.L-1 of combined ...
Júlia Araújo Camargo   +8 more
doaj   +1 more source

Model Development for Residual Chlorine

open access: yesJournal of Engineering Research and Reports, 2023
The research is to develop a mathematical model for the decay of residual chlorine at the nodes and compare with results from Epanet 2.0. All the influencing parameters of initial chlorine Ccl(init(o)), bulk decay (Kb), wall decay (KW) and travel time (t), were well represented and the equation is developed applying the differential form of the first ...
M. T. Bello, M. H. Bichi
openaire   +1 more source

Experimental appraisal and numerical modelling of chlorine demand and decay in a typical drinking water distribution network in South Africa

open access: yesEcotoxicology and Environmental Safety
Safe drinking water requires sound monitoring and maintenance of residual chlorine within drinking water distribution networks (DWDNs) to suppress possible microbial regrowth.
Donald Maphanga   +4 more
doaj   +1 more source

Étude expérimentale et modélisation de la désinfection par le chlore des eaux usées épurées [PDF]

open access: yes, 1998
Pour étudier la désinfection d'une eau usée épurée au stade secondaire, traitée à l'hypochlorite de sodium, des essais en réacteur fermé ont été effectués en utilisant des doses variant entre 1 et 10 mg de chlore par litre. Les résultats obtenus montrent
Hassan, A.   +3 more
core   +1 more source

Microbiological dataset of rural drinking water supplies in Zahedan, Iran

open access: yesData in Brief, 2018
The residual chlorine and microbial quality of drinking water in the Zahedan villages by a number of1221 samples from all 168 villages were collected between 2014–2015.
Majid RadFard   +9 more
doaj   +1 more source

A silver ion water sterilization system [PDF]

open access: yes, 1971
Small amounts of silver are incorporated in mixture of ion exchange resins, and water passing through this mixture is thus exposed to silver ion concentration.
Parry, E. P.
core   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

open access: yesFEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka   +11 more
wiley   +1 more source

Control of sulfides and coliphage MS2 using hydrogen peroxide and UV disinfection for non-potable reuse of pilot-scale anaerobic membrane bioreactor effluent

open access: yesWater Research X, 2021
Anaerobic membrane bioreactors reduce the energy cost of wastewater treatment and meet filtration requirements for non-potable reuse. However, sulfides (H2S/HS−) formed during anaerobic treatment exert a high chlorine demand and inhibit UV disinfection ...
Aleksandra Szczuka   +3 more
doaj   +1 more source

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Effect of temperature on pH, turbidity, and residual free chlorine in Sanandaj Water Distribution Network, Iran [PDF]

open access: yesJournal of Advances in Environmental Health Research, 2015
One of the parameters responsible for decreased water quality in a distribution system is temperature changes. This study was conducted to examine the effect of temperature on pH, turbidity, and residual chlorine in Sanandaj, Iran, Water Distribution ...
Asad Nouri   +3 more
doaj   +1 more source

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