In terrestrial environments, similar things have been done with poplar trees: https://s3.wp.wsu.edu/uploads/sites/2182/2017/09/Wastewater-Infosheet_final.pdf h

In terrestrial environments, similar things have been done with poplar trees: https://s3.wp.wsu.edu/uploads/sites/2182/2017/09/Wastewater-Infosheet_final.pdf https://s3.wp.wsu.edu/uploads/sites/2182/2017/09/Wastewater-... Grow extremely fast and fix carbon in wood, absorbing excess nutrients along the way. IMHO every cash crop farm should stands of poplars or willows on their borders.