In this study, the reclamation of clean water from spent filter backwash water (SFBW) was investigated through pilot-scale experiments. The pilot plant consisted of pre-sedimentation, coagulation, flocculation, clarification, and ultrafiltration (UF). Two coagulants of PAFCl and FeCl were investigated with respect to their performance on treated SFBW quality and UF membrane fouling. At the optimum dose of PAFCl and FeCl turbidity removal of 99.6 and 99.4% was attained, respectively. PAFCl resulted in an optimum UV, TOC, and DOC removal of 80, 83.6, and 72.7%, respectively, and FeCl caused the removal of those parameters by 76.7, 80.9, and 65.9%, respectively. PAFCl removed hydrophilic and transphilic constituent better than FeCl, but FeCl had, to some extent, higher affinities to a hydrophobic fraction. It was concluded that PAFCl showed a better coagulation performance in most cases and caused a lower membrane fouling rate compared to FeCl. Finally, the treated SFBW with both coagulant-UF systems met the drinking water standards.
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Dataset on the cost estimation for spent filter backwash water (SFBW) treatment.
Data Brief
December 2017
Center for Solid Waste Research, Institute for Environmental Research, Tehran University of Medical, Tehran, Iran.
The dataset presented in this article are related to the research article entitled "Hybrid coagulation-UF processes for spent filter backwash water treatment: a comparison studies for PAFCl and FeCl as a pre-treatment" (Ebrahimi et al., 2017) [1]. This article reports the cost estimation for treating produced spent filter backwash water (SFBW) during water treatment in Isfahan- Iran by various methods including primary sedimentation, coagulation & flocculation, second clarification, ultra filtration (UF) and recirculation of settled SFBW to water treatment plant (WTP) entrance.
View Article and Find Full Text PDFDataset on the spent filter backwash water treatment by sedimentation, coagulation and ultra filtration.
Data Brief
December 2017
School of Public Health, Tehran University of Medical Science, Tehran, Iran.
During operation of most water treatment plants, spent filter backwash water (SFBW) is generated, which accounts about 2-10% of the total plant production. By increasing world population and water shortage in many countries, SFBW can be used as a permanent water source until the water treatment plant is working. This data article reports the practical method being used for water reuse from SFBW through different method including pre-sedimentation, coagulation and flocculation, second clarification, ultra filtration (UF) and returned settled SFBW to the beginning of water treatment plant (WTP).
View Article and Find Full Text PDFHybrid coagulation-UF processes for spent filter backwash water treatment: a comparison studies for PAFCl and FeCl as a pre-treatment.
Environ Monit Assess
August 2017
Isfahan Water and Wastewater Company, Isfahan, Iran.
In this study, the reclamation of clean water from spent filter backwash water (SFBW) was investigated through pilot-scale experiments. The pilot plant consisted of pre-sedimentation, coagulation, flocculation, clarification, and ultrafiltration (UF). Two coagulants of PAFCl and FeCl were investigated with respect to their performance on treated SFBW quality and UF membrane fouling.
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