Tannery wastes: pollution sources and methods of treatment
Wesleyan University (Middletown, Conn.). Hall Laboratory of Chemistry, Joseph W. Masselli, New England Interstate Water Pollution Control Commission
New England Interstate Water Pollution Control Commission, 1958 - Factory and trade waste - 40 pages
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30 minutes added alkaline amino ammonium ammonium sulfate amount averaged bacterial brine Calcium formate carbonate chrome tanning chromium collagen concentration de-lime and bate degreased Department of Health dimethylamine discharged to waste dissolved drummed effluent enzymes equalized extracted fatliquoring flesh side gallons of water grain layer grease hair recovery hide substance kerosene lactic acid lagoon lime M.D. Commissioner Naphthalene nery neutralized nitrogen Oropon p.p.m. chromium p.p.m. sodium chloride p.p.m. total hardness p.p.m. total solids p.p.m. volatile solids paddle pickling pollution load pounds of B.O.D. pounds of hide pounds of sodium pounds of wet pounds per 1000 process chemical produced proteolysis reduce removed rinse salted hide samples second dump settling sewage shaving skin slaked lime sludge soak sodium bicarbonate sodium formate sodium sulfide solvent strong liquors sulfide ion sulfuric acid syntan tannery wastes tannin tion total nitrogen trickling filter unhair solution unhairing usually vegetable tanning volume Water Pollution weight