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Paper waste sludge magnetic biochar sorbs multispecies from wastewater

Dissertation (MSc (Applied Sciences) Water Utilization)--University of Pretoria, 2022.

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Other Authors: Chirwa, Evans M.N.
Format: Thesis
Language:en_US
Published: University of Pretoria 2022
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access_status_str Open Access
author2 Chirwa, Evans M.N.
author_browse Chirwa, Evans M.N.
author_facet Chirwa, Evans M.N.
collection Thesis
dc_rights_str_mv © 2022 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria.
description Dissertation (MSc (Applied Sciences) Water Utilization)--University of Pretoria, 2022.
format Thesis
id oai:repository.up.ac.za:2263/86667
institution University of Pretoria (South Africa)
language en_US
last_indexed 2026-06-10T12:37:24.815Z
license_str Other — see source repository
provenance_str_mv Harvested via OAI-PMH from UPSpace — University of Pretoria Institutional Repository
publishDate 2022
publishDateRange 2022
publishDateSort 2022
publisher University of Pretoria
publisherStr University of Pretoria
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source_str UPSpace — University of Pretoria Institutional Repository
spelling oai:repository.up.ac.za:2263/86667 Paper waste sludge magnetic biochar sorbs multispecies from wastewater Chirwa, Evans M.N. mmanoko@gmail.com Makgopa, Katlego Manoko, Masale Clement UCTD Magnetic biochar Wastewater treatment Selenate Phosphorus Methylene blue Adsorption Dissertation (MSc (Applied Sciences) Water Utilization)--University of Pretoria, 2022. Adsorption of pollutants from wastewater by demineralized and synthesized biochar derived from paper waste sludge has been received significant interest in recent studies. however there has been minimal research on non-demineralized paper waste sludge derived biochar uses for pollutant adsorption. The main focus of this study to prepare a neat non-demineralized paper waste sludge and a magnetized variant by the introduction of Fe3+ and Fe2+ salts to the feedstock and subsequent slow pyrolysis. Adsorption studies were performed to assess the efficiency of biochar’s removal of phosphorus, selenate, and methylene blue as a function of carbonization temperature, biochar loading, adsorbate concentration, pH, and contact time. MBC-SPS 450 was observed to be the best performing adsorbate with adsorption capacities of phosphorus 48.83 mg/g, Selenium 58.43 mg/g, and Methylene blue 5.92 mg/g. MBC SPS 450℃ was selected as the desirable adsorbent due to excellent adsorption efficiencies, lower carbonization temperature, magnetic separation from solution, and low loading requirements with an optimum loading of 5 g/L. The biochar can be regenerated up to three times with excellent efficiencies observed. Its intrinsic characteristics make it a good adsorbent that can be regenerated and reused with high efficiencies observed. The results observed demonstrates paper waste sludge-derived biochar as a good low-cost alternative to activated carbon adsorbent in wastewater treatment with additional benefits that its part of closing the loop in the fiber recycling process. Mpact Paper Chemical Engineering MSc (Applied Sciences) Water Utilization Unrestricted 2022-08-03T09:10:55Z 2022-08-03T09:10:55Z 2022-09 2022-07-30 Dissertation * S2022 https://repository.up.ac.za/handle/2263/86667 en_US © 2022 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. application/pdf University of Pretoria
spellingShingle UCTD
Magnetic biochar
Wastewater treatment
Selenate
Phosphorus
Methylene blue
Adsorption
Paper waste sludge magnetic biochar sorbs multispecies from wastewater
title Paper waste sludge magnetic biochar sorbs multispecies from wastewater
title_full Paper waste sludge magnetic biochar sorbs multispecies from wastewater
title_fullStr Paper waste sludge magnetic biochar sorbs multispecies from wastewater
title_full_unstemmed Paper waste sludge magnetic biochar sorbs multispecies from wastewater
title_short Paper waste sludge magnetic biochar sorbs multispecies from wastewater
title_sort paper waste sludge magnetic biochar sorbs multispecies from wastewater
topic UCTD
Magnetic biochar
Wastewater treatment
Selenate
Phosphorus
Methylene blue
Adsorption
url https://repository.up.ac.za/handle/2263/86667