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2020 | OriginalPaper | Chapter

Performance of Aluminum and Iron-Based Coagulants for the Removal of Water Turbidity for Human Consumption in the Cities (Rabat and Casablanca) of Morocco and Dewaterability of Hydroxide Sludge

Authors : Mohamed Najy, Mohamed Lachhab, Aziz Taouraout, Mohamed El Qryefy, Driss Belghyti

Published in: Innovations in Smart Cities Applications Edition 3

Publisher: Springer International Publishing

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Abstract

The treatment of water for human consumption generates a significant amount of the by-product found in the literature as hydroxide sludge. Their chemical composition, depending on the periods of collection of the raw water to be treated and the type of treatment to be carried out. The objective of our work is the optimization of the sludge treatment unit by centrifugation. Liquid sludge from settler purging and filter wash water is discharged to the thickener to increase its ability to dehydrate, and the sludge is extracted towards the dehydration stage.
The analysis was carried out on the dryness of the dehydrated sludge which represents the dry matter, by carrying the sludge sample in the oven at 105 °C until constant masses were obtained, on the one hand, and on the other on the operating parameters. The results of our study highlight the excellent performance achieved with the coagulant FeCl3 better than that Al2(SO4)3 for the elimination of turbidity and oxydability under optimal conditions. On the other hand, the quality of dehydrated sludge (dryness) varies from day to day, due to the variation in the raw water quality to be treated. Thus, well-concentrated sludge reduce polymer consumption.

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previous chapter How to Improve Wastewater Treatment in Smart City
next chapter Improving Safe and Sustainable Gray Water Reuse: A New Solution to Curb Water Shortages in Moroccan Cities
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Metadata
Title
Performance of Aluminum and Iron-Based Coagulants for the Removal of Water Turbidity for Human Consumption in the Cities (Rabat and Casablanca) of Morocco and Dewaterability of Hydroxide Sludge
Authors
Mohamed Najy
Mohamed Lachhab
Aziz Taouraout
Mohamed El Qryefy
Driss Belghyti
Copyright Year
2020
Book
Innovations in Smart Cities Applications Edition 3

Print ISBN: 978-3-030-37628-4

Electronic ISBN: 978-3-030-37629-1

Copyright Year: 2020

DOI
https://doi.org/10.1007/978-3-030-37629-1_83

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