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Modelling phosphoru...
Abstract
Ämnesord
Stäng
- Use of reactive filter media (RFM) is an emerging technology in small-scale wastewater treatment to improve phosphorus (P) removal and filter material longevity for making this technology sustainable. In this study, long-term sorption kinetics and the spatial dynamics of sorbed P distribution were simulated in replaceable P-filter bags filled with 700 L of reactive material and used in real on-site treatment systems. The input data for model calibration were obtained in laboratory trials with Filtralite P®, Polonite® and Top16. The P concentration breakthrough threshold value was set at an effluent/influent (C/C 0 ) ratio of 1 and simulations were performed with P concentrations varying from 1 to 25 mg L -1 . The simulation results showed that influent P concentration was important for the breakthrough and longevity, and that Polonite performed best, followed by Top16 and Filtralite P. A 100-day break in simulated intermittent flow allowed the materials to recover, which for Polonite involved slight retardation of P saturation. The simulated spatial distribution of P accumulated in the filter bags showed large differences between the filter materials. The modelling insights from this study can be applied in design and operation of on-site treatment systems using reactive filter materials.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Miljöbioteknik -- Vattenbehandling (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Environmental Biotechnology -- Water Treatment (hsv//eng)
Nyckelord
- Breakthrough
- COMSOL modelling
- P-filter bags
- Phosphorus saturation
- Solute transport
- Effluents
- Filtration
- Phosphorus
- Wastewater treatment
- Design and operations
- Emerging technologies
- Filter bags
- Phosphorus sorption
- Reactive materials
- Small scale wastewater treatment
- Passive filters
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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