title: Microalgae removal with Moringa oleifera.
abstract: Moringa oleifera seed extract was tested for algae (Chlorella, Microcystis, Oocystis and Scenedesmus) removal by Jar-test technique. This coagulant can be used in drinking water treatment. Jar-test has been carried out in order to evaluate the efficiency of this natural coagulant agent inside real surface water matrix. The influence of variables has been studied in this process, including operating parameters such as coagulant dosage, initial algae concentration, pH, agitation time and water matrix. Removal capacity is verified for water with high contamination of algae while the process is not affected by the pH and water matrix. Coagulation process may be modelling through Langmuir and Freundlich adsorption hypothesis, so acceptable r2 coefficients are obtained.
authors.affiliation: Department of Chemical Engineering and Physical Chemistry, University of Extremadura, Avda, De Elvas, s/n, 06071 Badajoz, Spain. Electronic address: mar88@unex.es.
authors.forename: M M
authors.initials: MM
authors.lastname: Barrado-Moreno
authors.affiliation: Department of Chemical Engineering and Physical Chemistry, University of Extremadura, Avda, De Elvas, s/n, 06071 Badajoz, Spain. Electronic address: jbelther@unex.es.
authors.forename: J
authors.initials: J
authors.lastname: Beltran-Heredia
authors.affiliation: Department of Plant Biology, Ecology and Earth Science, University of Extremadura, Avda, De Elvas, s/n, 06071 Badajoz, Spain. Electronic address: jomarga@unex.es.
authors.forename: J
authors.initials: J
authors.lastname: Martín-Gallardo
mesh_terms: D000327:Adsorption; D061046:Biological Control Agents; D002708:Chlorella / Q000254:growth & development / Q000302:isolation & purification; D000460:Chlorophyta / Q000254:growth & development; D005427:Flocculation / Q000187:drug effects; D005618:Fresh Water / Q000382:microbiology; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D058086:Microalgae / Q000254:growth & development / Q000302:isolation & purification; D046931:Microcystis / Q000254:growth & development / Q000302:isolation & purification; D008954:Models, Biological; D029588:Moringa oleifera / Q000737:chemistry*; D010936:Plant Extracts; D044444:Scenedesmus / Q000254:growth & development / Q000302:isolation & purification; D012639:Seeds / Q000737:chemistry; D013030:Spain; D018508:Water Purification
chemical_list: D061046:Biological Control Agents; D010936:Plant Extracts
keywords: Algae; Coagulation–flocculation; Freshwater; Moringa oleifera; Natural coagulation agents