Results 51 to 60 of about 172 (112)

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

Operational Effects on Water Quality Evolution in Water Distribution Systems

Engineering Proceedings
Water distribution systems (WDSs) are subject to operational changes due to variability in demands, the availability of flow rates, system maintenance and unexpected events.
Laura González, Yesid Coy, Dominic L. Boccelli, Juan Saldarriaga   +3 more
doaj   +1 more source

Statistical analysis of residual chlorine distribution in Binh Tan District’s water network: insights for urban water management

Royal Society Open Science
This study examined the water distribution system in Binh Tan District, Ho Chi Minh City, Vietnam, focusing on residual chlorine levels across seven sampling points.
Begmyrat Kulmedov, Emre Eroglu, Nguyen Huy Cuong, Tran Van Loi, Nguyen Hoan Phuong Thy   +4 more
doaj   +1 more source

Optimizing initial chlorine dosage at an injection point along a water distribution pipe

Journal of Nigerian Society of Physical Sciences
This study proposed a gradient-based optimization framework for determining the optimal initial chlorine dosage at an injection point along a water distribution pipe, with the aim of ensuring microbial safety and regulatory compliance while minimizing ...
John Tulirinya, Mathew Kinyanju, Samuel Mutua, Asaph Muhumuza   +3 more
doaj   +1 more source

Evaluation of drinking water quality and associated health risks in Adama City, Ethiopia

Heliyon
Drinking water deterioration causes to risk of public health which is essential to supply safe water to the public. This study assessed groundwater quality and health risks in Adama City by analyzing groundwater and chlorine samples.
Abelkassim Beshir, Daniel Reddythota, Essays Alemayehu   +2 more
doaj   +1 more source

Exploring spatial and temporal importance of input features and the explainability of machine learning-based modelling of water distribution systems

Digital Chemical Engineering
Ensuring safe drinking water necessitates advanced management and monitoring techniques for water quality in distribution systems. This study leverages machine learning (ML) to model chlorine decay in a water distribution system (WDS) in British Columbia,
Ammar Riyadh, Nicolas M. Peleato
doaj   +1 more source

A wavelet-based collocation approach for solving chlorine transport model

Boundary Value Problems
This study provides a unified framework for analyzing the two-dimensional chlorine transport model in pipes, governed by a second-order partial differential equation with complex boundary conditions.
J. Suganthi, Saurabh Chandra Maury
doaj   +1 more source

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A model for chlorine concentration decay in pipes

Water Research, 1993
Abstract A model that accounts for transport in the axial direction by convection and in the radial direction by diffusion and that incorporates first order decay kinetics has been developed to predict the chlorine concentration in a pipe in a distribution system. A generalized expression for chlorine consumption at the pipe wall is used to solve the
Robert Clark, Chungsying Lu, Pratim Biswas   +2 more
exaly   +2 more sources

Bulk Decay of Chlorine in Water Distribution Systems

Journal of Water Resources Planning and Management - ASCE, 2003
Mathematical models of chlorine concentration in water distribution systems require the bulk decay coefficient to be quantified. The coefficient needs to be determined with respect to independent variables if models are to maintain their predictive capability as seasonal and water treatment operational changes occur.
John R West
exaly   +2 more sources

Modelling of chlorine decay in municipal water supplies

Water Research, 1999
Abstract This paper describes the effects which temperature and the initial chlorine concentration have on the chlorine decay in different water samples. It also reports the derivation of empirical formulae which describe these effects. The data show that chlorine decays more rapidly in fresh samples than in those which had been re-chlorinated with ...
C F Förster, J R West
exaly   +2 more sources