A million dollar question! What is this sticky chemical...

A million dollar question! What is this sticky chemical compound? We do know from the Phoslock blog that our product was used in a similar application in August 2018...
"Keeping phosphorus out of waterways Alayna DeMartini Feb. 26, 2019 Phosphorus filters are being studied in Ohio as a possible means of improving water quality in Lake Erie and other bodies of water.
(Photo: Getty Images)COLUMBUS, Ohio—In a pit about 3 feet underground lies one possible solution to reducing a large amount of the phosphorus draining from some of Ohio’s agricultural fields.At two locations in the state, researchers with The Ohio State University College of Food, Agricultural, and Environmental Sciences (CFAES) are testing phosphorus filters that have the potential to remove up to 75 percent of the phosphorus running through them. Phosphorus can be found in commercial fertilizers and animal manure.On a typical agricultural field, rainfall percolates through layers of soil and eventually into an underground plastic pipe system that carries the rain to a drainage pipe, then to a ditch or nearby waterway. With a phosphorus filter, the water flows through an underground tank before it reaches the ditch or nearby waterway. The tank contains a chemical composite that acts like adhesive tape, causing the phosphorus to stick to it as the water then flows out to the ditch or nearby creek, stream, or lake.“This filter has great potential,” said Larry Brown, an agricultural engineer and faculty member at CFAES who is studying phosphorus filters in Ohio. “The chemical used is very efficient at absorbing phosphorus.”During a five-year span, a phosphorus filter can remove up to 75 percent of the phosphorus flowing through it, depending on how the filter is designed, he said.The phosphorus filters that the researchers installed are on a privately owned farm in Putnam County and in CFAES’ Waterman Agricultural and Natural Resources Laboratory in Columbus. A third is slated to be installed in Defiance County later this year.A phosphorus filter can be costly, up to $20,000 or more, depending on the field size and the phosphorus concentrations in the soil, Brown said. But Brown, who is researching the effectiveness of phosphorus filters with other CFAES faculty and the U.S. Department of Agriculture, is looking into grants that would help bring down the cost of the filter and other systems for stemming nutrients coming from agricultural fields.“There’s been a lot of discussion about who causes the algal bloom problem in Western Lake Erie or what causes the problem,” Brown said. “We’re trying to figure out what can take care of the problem.”Brown will be one of numerous speakers at the upcoming, annual Conservation Tillage and Technology Conference, set for March 5–6 on the campus of Ohio Northern University in Ada, Ohio. Christine Jones, an Australian soil ecologist, will be the keynote speaker with the topic “Building New Topsoil Through the Liquid Carbon Pathway for Long-Term Productivity and Profit.”The conference is sponsored by CFAES and includes speakers from the college as well as the agriculture industry.Along with being high in phosphorus, the rainwater running off of agricultural fields can also be high in nitrate, a component of nitrogen, which is used in commercial fertilizers and is commonly found in manure. Brown is also studying how to remove nitrates from agricultural fields by having the water pass through a pit containing woodchips from hardwood trees, a system commonly called a bioreactor....For more information and an agenda for the Conservation Tillage and Technology Conference, visit go.osu.edu/tillageconference."