Biologically and chemically mediated adsorption and precipitation of phosphorus from wastewater
Chris Pratt1, Simon A Parsons, Ana Soares
1Landcare Research - Manaaki Whenua, Palmerston North, New Zealand. prattc@landcareresearch.co.nz
Abstract:
Biologically and chemically mediated adsorption and precipitation processes offer a range of approaches for removing phosphorus (P) from agricultural, domestic and industrial effluents. Technologies implemented at full-scale include filtration by adsorbent media, such as steel slag, and recovery of phosphorus as struvite, which has been successfully commercialised as a fertiliser. Other promising technologies under investigation include P removal by polymers and nanomaterials as well as struvite formation by bacteria. There is a need to focus future research on improving the efficiency of P removal by adsorption and precipitation. This can be achieved by techniques such as regenerating filters, polymers and nanomaterials for renewed P removal. Research is also needed to optimise the fertiliser potential of struvite precipitates.
Related Concept Videos
Factors Affecting Solubility
The Phosphorus Cycle
Microbial Bioremediation of Uranium
Coagulation
Precipitation and Co-precipitation
Gravimetry: Inorganic And Organic Precipitating Agents


