Multi-parameter based coagulant dosing control
| Autor: | Lelum Duminda Manamperuma, Harsha Ratnaweera, L. Wei |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Engineering
Environmental Engineering 02 engineering and technology Wastewater 010501 environmental sciences Waste Disposal Fluid 01 natural sciences 020401 chemical engineering Chemical Precipitation Dosing 0204 chemical engineering Raw water Process engineering 0105 earth and related environmental sciences Water Science and Technology Sewage Waste management Norway business.industry Feed forward Waste Disposal Facilities Waste treatment Sewage sludge treatment Sewage treatment Water treatment business |
| Zdroj: | Water Science and Technology. 75:2157-2162 |
| ISSN: | 1996-9732 0273-1223 |
| DOI: | 10.2166/wst.2017.058 |
| Popis: | The required coagulant dosage is strongly related to the quality of raw water or wastewater. Online sensors for most quality parameters are now readily available to treatment facilities, yet remain rarely used in treatment process control. This paper presents the evaluation of an advanced coagulant dosing control system based on online measurements in full-scale processes. The popular multivariate analytical method, partial least square regression, was used to build up the relationship between the coagulant dose and wastewater quality. The system was tested in two wastewater treatment plants (WWTPs) in Norway. Coagulant savings up to 30% in Norwegian plants were observed with feed forward calibrations. The considerable savings reduce sludge production, leading to further cost saving on sludge treatment. This paper presents the method, function and experiences of the full-scale implementation of the system in different WWTPs. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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