contaminated water
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2022 ◽  
Vol 204 ◽  
pp. 112125
Author(s):  
Hafiza Afia Murad ◽  
Mahtab Ahmad ◽  
Jochen Bundschuh ◽  
Yohey Hashimoto ◽  
Ming Zhang ◽  
...  

2022 ◽  
Vol 304 ◽  
pp. 114143
Author(s):  
Biswajit Ruj ◽  
Bhaskar Bishayee ◽  
Rishya Prava Chatterjee ◽  
Ankita Mukherjee ◽  
Arup Saha ◽  
...  

2022 ◽  
Vol 175 ◽  
pp. 106476
Author(s):  
Shraddha Singh ◽  
Jayant Karwadiya ◽  
Sudhakar Srivastava ◽  
Prasanta Kumar Patra ◽  
V.P. Venugopalan

Author(s):  
Darud E. Sheefa ◽  
Brian D. Barkdoll

Abstract Water distribution system flushing is one way to get rid of contamination. In conventional flushing, all the contaminated water gets discharged to the environment, thereby harming it. A new method is proposed here as an alternative solution, in which a containment pond lined with impermeable material will be constructed in a suitable place within the municipality. Network modelling was performed to investigate the feasibility of the new method. It was found that (1) the proposed flushing method can successfully reduce environmental impacts compared to hydrant flushing only, (2) a containment pond cannot clear the system periphery away from the containment pond, (3) the best location of a containment pond is not always at the furthest location from the source reservoir, and (4) for some systems, some pond locations might be better from an economic perspective, while other locations will be better environmentally.


2022 ◽  
Vol 17 (2) ◽  
pp. 105-114
Author(s):  
Linus N. Okoro ◽  
Bolade O. Agboola ◽  
Precious O. Yakubu

In this study, cellulose from sugarcane bagasse and wood pulp were converted to nanocellulose and utilized to treat water from different sources within Yola Metropolis to study the efficacy of both methods. From the analysed water parameters, both nanocellulose materials were effective in treating contaminated water. They showed the capability of reducing the concentrations of the various tested parameters such as Total Dissolved Solids (TDS), Nitrate, Chloride, and Nephelometric Turbidity Units (NTU). Interestingly, analysis of the heavy metal concentrations before and after water treatment with the nanocellulose, showed very significant reduction of the heavy metals. This is encouraging as we explore more efficient methods of water treatment, in order to tackle rising cases of lead and other heavy metal poisoning in Nigeria due to illegal mining activities and deregulated industrial activities. Dans cette recherche, la cellulose de la bagasse de canne à sucre et de la pulpe de bois a été converties en nanocellulose et utilisées pour l’épuration d’eau de différentes sources au sein de Yola Metropolis afin d’étudier l’efficacité des deux méthodes. D’après les paramètres d’eau analysés avec les deux types de nanocelluloses étaient efficaces dans le traitement de l’eau contaminée. Ils ont considérablement réduit les concentrations des différents contaminants testés tels que le TDS, le nitrate, le chlorure et le NTU. En effet, l’analyse de la concentration en métaux lourds avant et après le traitement de l’eau avec la nanocellulose a montré une réduction très significative des métaux lourds. C’est une bonne chose car nous explorons des méthodes plus efficaces de traitement de l’eau, pour lutter contre l’augmentation des cas d’empoisonnement au plomb et à d’autres métaux lourds au Nigeria en raison d’activités minières illégales et d’activités industrielles non réglementées.


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