NIOSHTIC-2 Publications Search
Dewatering of waste effluent from a tile manufacturing plant.
Tuscaloosa, AL: U.S. Department of the Interior, Bureau of Mines, RI 9376, 1991 Jan; :1-6
The U.S. Bureau of Mines developed a dewatering technique for treating wastewater that was tested on waste slurry from a commercial tile company in Alabama. Raw wastewater samples were pretreated with 10 lb calcium chloride and 10 lb Wyoming bentonite per 1,000 gal of slurry. After pretreatment, polyethylene oxide (peo) at dosages varying from 0.05 to 0.20 Lb per 1,000 gal was mixed with the waste slurry, forming strong, tough flocs that were separated from the clarified water using a trommel. The flocculated slurry was dewatered to a consistency that could be handled for subsequent disposal in a landfill. The clarified water quality was equivalent to that of the company's present treatment system.
Industrial-waste-treatment; Waste-water; Calcium-chloride; Bentonite; Dosage; Waste-disposal; Earth-fills; Slurries; Mines; Dewatering
IH; Report of Investigations
NTIS Accession No.
Tuscaloosa, AL: U.S. Department of the Interior, Bureau of Mines, RI 9376
Page last reviewed: April 12, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division