EFFECT OF FLOCCULANTS ON THE SEDIMENTATION OF ORGANIC SOLIDS IN TANNERY UNHAIRING EFFLUENTSCOOPER JE; HAPPICH WF; BITCOVER EH et al.1975; J. AMER. LEATHER CHEMISTS ASS.; U.S.A.; DA. 1975; VOL. 70; NO 1; PP. 18-29; BIBL. 8 REF.; 11 ILL.; (29TH ANNU. PURDUE IND. WASTE CONF.; PURDUE UNIV.; WEST LAFAYETTE; 1974)Article

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EFFECT OF ACCLIMATION TO LIME-SULFIDE EFFLUENT FROM UNHAIRING CATTLEHIDES ON THE COMPOSITION OF ACTIVATED SLUDGE.HAPPICH WF; COOPER JE; BITCOVER EH et al.1977; J. AMER. LEATHER CHEMISTS ASS.; U.S.A.; DA. 1977; VOL. 72; NO 4; PP. 120-134; BIBL. 21 REF.Article

EVALUATION OF A NEEDLE PENETROMETER FOR DETECTING WEAK HIDES BEFORE PROCESSINGEVERETT AL; PALM WE; BITCOVER EH et al.1973; J. AMER. LEATHER CHEMISTS ASS.; U.S.A.; DA. 1973; VOL. 68; NO 3; PP. 84-95; BIBL. 19 REF.; 7 ILL.; (67TH ANNU. MEET. AM. LEATHER CHEM. ASSOC.; MAKINAC ISLAND, MICH.; 1971)Serial Issue