Abstract: An animal waste management system and method thereof is disclosed. The system is designed for use in high flush waste removal systems, but obviates the need for anaerobic lagoons when coupled to an advanced waste treatment facility. The system uses a continuous recycle loop of the waste slurry to increase the total solids concentration of the waste slurry to a level required by advanced waste treatment facilities. In particular, coarse solids are separated and removed from the recycled waste slurry to prevent clogging of the system. Aeration and pH control of the waste slurry when necessary prevents deterioration of the air quality surrounding the system.

Abstract: A method for treating industrial waste water prior to its discharge into the city or county sewer system is provided. The method includes introducing into the waste water an iron-containing compound, a hydroxide and a flocculating agent. This method results in the formation of a sludge cake layer on top of the waste water. The sludge cake is then removed, and the treated waste water is discharged into the sewer system.

Abstract: A Technetium-99m labelled tin colloid for liver scanning is made by adding Technetium-99m, as an aqueous solution of pertechnetate ion TcO.sub.4.sup.-, to a reagent comprising one part by weight of sodium, potassium or ammonium fluoride and from 0.00075 to 0.75 parts by weight of stannous tin.