Results 61 to 70 of about 882,319 (191)

Optimizing trichloroisocyanuric acid disinfection in industrialized Litopenaeus vannamei culture: A system dynamics approach

Aquaculture Reports
Trichloroisocyanuric acid (TCCA) is widely used as a disinfectant in shrimp aquaculture, but inappropriate dosing can lead to ineffective pathogen control or toxicity to cultured organisms.
Junhui Qi, Baoran Wang, Shijia Yuan, Zhao Chen, Jitao Li, Zhiqiang Chang, Qianqian Zhai   +6 more
doaj   +1 more source

Preservation of Required Chlorine Concentration in Baghdad Water Supply Networks using On-Site Chlorine Injection

Journal of Engineering, 2011
The chlorine concentration variation in Baghdad water networks was studied. The chlorine data were collected from Mayoralty of Baghdad and Ministry of Environment (MOE) for the networks for both sides of the city Karkh and Rasafa for (2008-2009).
Rafa H. Al-Suhaili, Riadh Fadhil Nsaif Al-Azzawe   +1 more
doaj   +1 more source

Bulk Water Microbes Could Accelerate Chlorine Decay at Low Chlorine Concentrations

Water
Using a laboratory-scale system, consisting of a primary disinfection tank (PDT) and three intermittently mixed reactors (R1–R3) in series, bulk water and biofilm contributions to chlorine decay were quantified. The reactors (surface-to-volume ratio: 23.7 m−1; retention time in each reactor: 42.6 ± 1.18 h) were fed with plant-filtered water (PFW ...
Mohamed Fawaz Fawzer, George Kastl, K. C. Bal Krishna, Ian Fisher, Arumugam Sathasivan   +4 more
openaire   +1 more source

Sanitization Treatment of Fresh Produce with Acidic Electrolyzed Water: Experimental Results on Energy Efficiency, Effectiveness on Rots, Cost and Environmental Impact at Near-Industrial Scale

Sci
This study evaluates the potential of acidic electrolyzed water (AEW) as an alternative sanitizing solution for the fruit and vegetable industry. Conducted on a near-industrial scale, the experiment used a 300 L solution with 10% AEW, measuring pH, free ...
Ferruccio Giametta, Gianluca Tanucci, Pasquale Catalano, Antonio Ippolito, Biagio Bianchi   +4 more
doaj   +1 more source

Chlorine transport and decay analysis in water distribution systems using hydraulic simulation and physics- and chemistry-informed graph neural networks

Case Studies in Chemical and Environmental Engineering
Maintaining compliant chlorine residuals across water distribution networks is challenging because concentrations evolve under time-varying hydraulics, advective transport, and bulk and wall decay kinetics, while field monitoring is sparse. Physics-based
Mostafa Khodakarami, Víctor R. Vásquez
doaj   +1 more source

Chlorine Decay under Steady and Unsteady-state Hydraulic Conditions

Procedia Engineering, 2014
AbstractThis paper describes a simulation framework for the scale-adaptive hydraulic and chlorine decay modelling under steady and unsteady-state flows. Bulk flow and pipe wall reaction coefficients are replaced with steady and unsteady-state reaction coefficients.
Stoianov, Ivan, Aisopou, Angeliki
openaire   +2 more sources

Dynamic coupling between flow perturbations and chlorine decay kinetics in drinking water distribution systems

LHB Hydroscience Journal
Accurate prediction of chlorine residuals is essential for water supply safety. Current mechanistic predictive models for water distribution networks often rely on a limited set of discrete decay coefficients ([Formula: see text]), failing to represent ...
Shuai-Hua Hou, Chao Wang, Feng Xu, Chen Zhou, Zesen Shi   +4 more
doaj   +1 more source

Modelling Chlorine Decay in a Pilot Scale Water Distribution System Subjected to Transient

, 2015
The reduction of residual chlorine concentration in water distribution systems depends on hydraulic conditions. Prediction models for chlorine decay in water distribution system were based on an assumption of steady flow.
Hyunjun Kim, Sanghyun Kim, J. Koo
semanticscholar   +1 more source

A Kinetic and Mechanismic Study of Plasma-Induced Degradation of Monochloropropionic Acids in Water by Means of Anodic Contact Glow Discharge Electrolysis

International Journal of Polymer Science, 2016
Decomposition of aqueous monochloropropionic acids (MCPAs) was investigated by means of anodic contact glow discharge electrolysis (CGDE). With the decay of MCPAs, the corresponding total organic carbon (TOC) also decreased smoothly.
Haiming Yang, Xiaotong Zhao, Baigang An, Lixiang Li, Shaoyan Wang, Maowei Ju   +5 more
doaj   +1 more source

Study on Residual Chlorine Transport in Receiving Waters from Sewage Treatment under Seasonal Operation

Journal of Water and Environment Technology
In some sewage treatment plants in Japan, treated water with increased ammonia concentration is discharged to supply for the lack of nutrients in the seaweed farms.
Hiroyuki Yamanishi
doaj   +1 more source