<http://schema.org/description>
"I am charged with finding the sources of phosphorus in our plant. Our main process effluents are from mass finishing and washing machines. I have not found significant phosphorus in these fluids, and yet, we are close to the limit. What am I missing?"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.pfonline.com/articles/phosphates-in-wastewater>