title: Manufacturing ceramic bricks with polyaluminum chloride (PAC) sludge from a water treatment plant.
abstract: The objective of this research work is to assess the viability of manufacturing ceramic bricks with sludge from a water treatment plant (WTP) for use in real-world applications. Sludge was collected from settling tanks at the Bolonha WTP, which is located in Belém, capital of the state of Pará, Brazil. After dewatering in drainage beds, sludge was added to the clay at a local brickworks at different mass percentages (7.6, 9.0, 11.7, 13.9 and 23.5%). Laboratory tests were performed on the bricks to assess their resistance to compression, water absorption, dimensions and visual aspects. Percentages of 7.6, 9.0, 11.7 and 13.9% (w/w) of WTP sludge presented good results in terms of resistance, which indicates that technically, ceramic bricks can be produced by incorporating up to 13.9% of WTP sludge.
authors.affiliation: Science and Technology Center of the Universidade do Estado do Pará (UEPA), Tv. Enéas Pinheiro, 2626, Belém, Pará, Brazil.
authors.forename: E M
authors.initials: EM
authors.lastname: da Silva
authors.affiliation: Hydraulic and Environmental Engineering Department of Escola Politécnica of the Universidade de São Paulo (EPUSP), São Paulo, Brazil.
authors.forename: D M
authors.initials: DM
authors.lastname: Morita
authors.affiliation: Engineering Department of the Universidade do Estado do Pará (UEPA), Tv. Enéas Pinheiro, 2626, Belém, Pará, Brazil.
authors.forename: A C M
authors.initials: AC
authors.lastname: Lima
authors.affiliation: Institute of Technology of the Universidade Federal do Pará (UFPA), Rua Augusto Corrêa, 01 - Guamá. CEP 66075-110. Caixa postal 479, Belém, Pará, Brazil E-mail: luiza.girard@gmail.com.
authors.forename: L Girard
authors.initials: LG
authors.lastname: Teixeira
mesh_terms: D000536:Aluminum Hydroxide / Q000737:chemistry*; D000538:Aluminum Silicates / Q000737:chemistry; D001938:Brazil; D002516:Ceramics / Q000032:analysis*; D000077215:Clay; D003252:Construction Materials / Q000032:analysis*; D059027:Recycling / Q000379:methods*; D012722:Sewage / Q000032:analysis*; D018508:Water Purification
chemical_list: D000538:Aluminum Silicates; D012722:Sewage; C016213:aluminum oxychloride; D000536:Aluminum Hydroxide; D000077215:Clay