Effect of polyaluminium chloride water treatment sludge on effluent quality of domestic wastewater treatment

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dc.contributor.authorNansubuga, Irene
dc.contributor.authorBanadda, Noble
dc.contributor.authorBabu, Mohammed
dc.contributor.authorVerstraete, Willy
dc.contributor.authorWiele, Tom Van de
dc.date.accessioned2022-03-02T15:41:13Z
dc.date.available2022-03-02T15:41:13Z
dc.date.issued2013
dc.description.abstractWater resources degeneration is accelerated by the discharge of untreated wastewater and its byproducts, hence, reuse of these wastes is a major contributor to sustaining fresh water for the coming decades. In this study, the reuse of polyaluminium water treatment sludge (PA-WTS) as a flocculant aid to improve the effluent quality of wastewater during primary sedimentation is evaluated and presented. PA-WTS was collected from Gabba water treatment plant (Gabba WTP) Uganda, after the coagulation-flocculation process that makes use of aluminium chlorohydrate (ACH). The average aluminium residue concentration in PA-WTS was 3.4 mg/L. During this study, batch laboratory experiments were conducted in a jar-test apparatus in which different doses of PA-WTS were added. The results obtained showed a decrease in total suspended solids (TSS), chemical oxygen demand (COD), total ammonium nitrogen (TAN), and total phosphates (TP) in the supernatant after 30 min of settlement. The optimal PA-WTS dosage of 37.5 mL/L significantly (P<0.05) increased the TSS, TP and COD removal efficiencies by 15, 22 and 30%, respectively. It can be concluded that the PA-WTS positively complimented the sedimentation process in the primary treatment of wastewater to achieve better effluent quality.en_US
dc.identifier.citationNansubuga, I., Banadda, N., Babu, M., Verstraete, W., & Van de Wiele, T. (2013). Effect of polyaluminium chloride water treatment sludge on effluent quality of domestic wastewater treatment. African Journal of Environmental Science and Technology, 7(4), 145-152.DOI: 10.5897/AJEST12.194en_US
dc.identifier.issn1996-0786
dc.identifier.urihttps://nru.uncst.go.ug/xmlui/handle/123456789/2405
dc.language.isoenen_US
dc.publisherAfrican Journal of Environmental Science and Technologyen_US
dc.subjectAluminium chlorohydrate, poly aluminium sludge, reuse, wastewater, water treatment sludge.en_US
dc.titleEffect of polyaluminium chloride water treatment sludge on effluent quality of domestic wastewater treatmenten_US
dc.typeArticleen_US
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