||Processing chrome tannery effluent to meet best available treatment standards /
Barber, Lawrence K. ;
Ramirez, Ernest R. ;
Zemaitis, William L.
||Lawrence (A. C.) Leather Co., Winchester, NH.;Industrial Environmental Research Lab.-Cincinnati, OH.
|| Industrial Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency ; Available to the public through the National Technical Information Service,
Factory and trade waste. ;
Sewage--Purification--Activated sludge process. ;
Sewage sludge. ;
Water pollution control ;
Tanning materials ;
Industrial waste treatment ;
Activated sludge process ;
Operating costs ;
Economic analyses ;
Process charting ;
Performance evaluation ;
Biological industrial waste treatment ;
Wet methods ;
Waste water reuse
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||x, 152 pages : illustrations ; 28 cm.
To satisfy stream discharge requirements at its Winchester, N.H., chrome tan shearling tannery, the A. C. Lawrence Leather Co., Inc. selected primary and secondary systems that are unique as applied to tannery effluent treatment in the United States. Primary clarification is accomplished by means of coagulation and flotation, using electrolytic as well as mechanical micro-bubble generation. The secondary biological section is a so-called CARROUSEL, TM a technical modification of the Passveer oxidation ditch. During the 12-month study, complete analytical data representing winter as well as summer operating conditions were acquired along with operating cost data. This report presents these data and describes the design and operation of the system. Possible applications of the same principles to other tannery wastewaters are also suggested.
"A.C. Lawrence Leather Co., Inc." "Food and Wood Products Branch, Industrial Environmental Research Laboratory." "July 1979." Includes bibliographical references. "Grant no. S 804504." Microfiche.