title: Feasibility of automatic chemicals dosage control--a full-scale evaluation.
abstract: This contribution discusses the feasibility of automatic control for chemicals dosing in activated sludge systems. The evaluation is made on the basis of a full-scale implementation at the Lommel WWTP (Belgium) of an on-line controlled dosage system for iron chloride and external carbon source. The control laws are very simple and allow intuitive adaptation by the plant operators. The control system results in a significant reduction of the chemicals dosage, better effluent results and a lower sludge production. The implementation is furthermore cost-efficient.
authors.affiliation: Aquafin NV, Aartselaar, Belgium. Martijn.Devisscher@aquafin.be
authors.forename: M
authors.initials: M
authors.lastname: Devisscher
authors.forename: H
authors.initials: H
authors.lastname: Bogaert
authors.forename: D
authors.initials: D
authors.lastname: Bixio
authors.forename: de Velde J
authors.initials: de VJ
authors.lastname: Van
authors.forename: C
authors.initials: C
authors.lastname: Thoeye
mesh_terms: D001331:Automation / Q000379:methods; D002244:Carbon / Q000032:analysis; D003365:Costs and Cost Analysis; D005240:Feasibility Studies; D058085:Iron Compounds / Q000032:analysis; D009862:Online Systems; D010758:Phosphorus / Q000032:analysis / Q000302:isolation & purification; D012722:Sewage / Q000737:chemistry; D014462:Ultrafiltration; D018508:Water Purification / Q000191:economics / Q000295:instrumentation / Q000379:methods*
chemical_list: D058085:Iron Compounds; D012722:Sewage; D010758:Phosphorus; D002244:Carbon