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Title: Fe-Al recovery from mine water treatment residuals and product testing for wastewater treatment - phosphate and turbidity removal
Authors: Dinu, Laurentiu Razvan 
Badescu, Valeriu 
Vasile Gabriela 
Cristea, Ionut 
Serban, Ecaterina Anca 
Oncu, Voicu 
Moga, Marinela 
Keywords: Mine water;Coagulation;Recycling
Issue Date: Sep-2019
Publisher: National Research and Development Institute for Industrial Ecology, ECOIND
Mine water treatment scope is to produce an effluent which satisfies the discharge limits according to permits. However, the production of metal-rich sludge is a consequence of the mine water treatment and its disposal as a waste raises the cost of the whole operation, so ways to convert the sludge into marketable products are desirable. For example, mine water treatment sludge can be used for adsorbents or pigments production or some of the sludge components can be extracted and utilized as coagulants. Coagulants were obtained from mine water after partial precipitation of metal species or after conventional treatment, by leaching the sludge with acid. The effectiveness of coagulants considering phosphate, chemical oxygen demand and turbidity is presented in this paper, alongside with some of the drawbacks as observed.
International Symposium "The Environment and the Industry", 26-27 September 2019, Bucharest, Romania, pp. 56-62
ISSN: L:1843-5831 (online)
Appears in Collections:SIMI 2019

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