A method of treating animal manure solids comprises contacting the solids with a treatment composition comprising AlCl3.nH2O or Al(NO3)3.mH2O, or the residue of AlCl3.nH2O or Al(NO3)3.mH2O, to form a treated waste product, wherein n is from 0 to 10, and m is from 0 to 12. The treatment amount can be effective to reduce phosphorus solubility in the manure; reduce phosphorus runoff and/or phosphorus leaching from fields fertilized with manure; inhibit ammonia volatilization from the manure; flocculate solids in the manure; reduce pathogens in the manure; increase the nitrogen content in the manure; and/or reduce acid rain and PM-10s associated with the manure.
United States of America, as Represented by the Secretary of Agriculture (Washington, DC); Board of Trustees of the University of Arkansas (Little Rock, AR)
Moore, P. A. (2006). Methods of treating manure. Patents Granted. Retrieved from https://scholarworks.uark.edu/pat/121