2016
DOI: 10.1016/j.watres.2015.10.038
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Coagulant recovery and reuse for drinking water treatment

Abstract: Coagulant recovery and reuse from waterworks sludge has the potential to significantly reduce waste disposal and chemicals usage for water treatment. Drinking water regulations demand purification of recovered coagulant before they can be safely reused, due to the risk of disinfection by-product precursors being recovered from waterworks sludge alongside coagulant metals. While several full-scale separation technologies have proven effective for coagulant purification, none have matched virgin coagulant treatm… Show more

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Cited by 57 publications
(28 citation statements)
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“…Many scientists produced adsorbents by reusing metal sludges [39][40][41]. They used them again in wastewater treatment and removal of heavy metals (Hg, Pb, As, Cr, Cu) [40,42,43].…”
Section: Impact Of Al Accumulation On Smebr and Environmentmentioning
confidence: 99%
“…Many scientists produced adsorbents by reusing metal sludges [39][40][41]. They used them again in wastewater treatment and removal of heavy metals (Hg, Pb, As, Cr, Cu) [40,42,43].…”
Section: Impact Of Al Accumulation On Smebr and Environmentmentioning
confidence: 99%
“…Ferric sulfate, a common coagulant, has shown potential in recovery and reuse. 33 It can be explored to lower the operating expense (OPEX) of drinking water treatment in developing communities. Electrocoagulation, a process that generates aluminum hydroxide coagulant, has also shown potential in decentralized water treatment.…”
Section: Coagulation and Flocculationmentioning
confidence: 99%
“…Historicamente, as pesquisas sobre tecnologias de recuperação de coagulantes iniciaram-se em 1903 por meio de processos de acidificação (JE-WELL, 1903apud KEELEY et al, 2014. Diferentes métodos foram estudados para a recuperação de alumínio (PETRUZZELLI et al, 1998) e de ferro (VAEZI e BATEBI, 2001;KEELEY et al, 2016a). Métodos para o reúso e recuperação de coagulantes, suas potencialidade e fragilidades são mostrados na Tabela 2.…”
Section: Uso De Lodo De Eta Em Processos De Recuperação De Coagulanteunclassified