title: Mechanisms during suspended solids and phosphate concentration variations in wastewater coagulation process.
abstract: Coagulation-flocculation process is one of the most commonly used treatment process in water and wastewater treatment. Particles (PA) and phosphates (P) removal are the main objectives in wastewater coagulation. There is a general agreement on the dominant mechanism of PA and P removal during coagulation. While it is agreed that the PA and P removal reactions are competitive and takes place simultaneously, there is no clear understanding on the ratio of distribution of coagulants among the PA and P removal. The ratio can be significantly influenced by the content of PA and P, in addition to other water and coagulant quality factors. This paper attempts to provide a qualitative ratio of coagulant distribution based on PA:P proportion in raw water and OH:Al ratio in coagulants.
authors: a Department of Mathematical Sciences and Technology , Norwegian University of Life Sciences , Aas , Norway.
authors: Lelum Duminda
authors: LD
authors: Manamperuma
authors: a Department of Mathematical Sciences and Technology , Norwegian University of Life Sciences , Aas , Norway.
authors: Harsha Chandima
authors: HC
authors: Ratnaweera
authors: b Department of Biotechnology and Bioecology , Belarusian State Technological University , Minsk , Belarus.
authors: A
authors: A
authors: Martsul
mesh_terms: D005427:Flocculation; D010710:Phosphates / Q000032:analysis* / Q000737:chemistry; D014865:Waste Disposal, Fluid / Q000379:methods*; D062065:Wastewater / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000032:analysis* / Q000737:chemistry; D018508:Water Purification / Q000379:methods*
chemical_list: D010710:Phosphates; D062065:Wastewater; D014874:Water Pollutants, Chemical
keywords: Coagulants; coagulation mechanisms; coagulation–flocculation; particles; phosphates