Feasibility of automatic chemicals dosage control--a full-scale evaluation.
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.
Devisscher
M
M
Aquafin NV, Aartselaar, Belgium. Martijn.Devisscher@aquafin.be
Bogaert
H
H
Bixio
D
D
Van
de Velde J
de VJ
Thoeye
C
C
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*
D058085:Iron Compounds; D012722:Sewage; D010758:Phosphorus; D002244:Carbon