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Heliyon
Article . 2023 . Peer-reviewed
License: CC BY NC ND
Data sources: Crossref
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Article . 2023
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SSRN Electronic Journal
Article . 2022 . Peer-reviewed
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Investigation of Water Treatment Sludge for the Treatment of Saline Water: Batch Studies

Authors: Moatlhodi Wise Letshwenyo; Kesaobaka Machola; Gobusaone Mokokwe;

Investigation of Water Treatment Sludge for the Treatment of Saline Water: Batch Studies

Abstract

In this study, water treatment sludge was investigated through batch modes for the treatment of saline water to meet livestock drinking consents. The water quality was assessed using water quality index (WQI).The kinetic data was best described by the Pseudo - Second - Order model and the equilibrium isotherm by the Freundlich model. The maximum removal efficiency was 51.5 ± 0.65%, 22.6 ± 0.5% and 100% for Sulphates (SO4 2-), Chloride (Cl-), and Nitrates (NO3 -), respectively. The maximum removal efficiency of sodium (Na) and nickel (Ni) was 100% each at 0.4g dose and that of manganese (Mn) was 87.5% at 1.2g dose. The effect of temperature revealed that the adsorption capacity for anions, decreased with increasing temperature, whereas for the cations the adsorption capacities increased with increasing temperature. The water treatment sludge reduced the total dissolved solids (TDS) and electrical conductivity (EC) from the initial values of 19600 mgL-1 and 38900 μScm-1 to 98 mgL-1 and 1728 μScm-1,respectively. The Water Quality Indices were 37.35 and 7.57, before and after treatment, respectively. Water treatment sludge can be used for the pre-treatment process before using conventional treatment technologies. Pilot scale investigations should be conducted before field trials.

Keywords

H1-99, Salinity, Nitrates, Science (General), Sodium, Sulphates, Social sciences (General), Q1-390, Cations, Adsorption

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    influence
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
6
Top 10%
Average
Top 10%
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