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Investigation of an Anaerobic-Aerobic Lagoon System Treating Potato Processing Wastes

Fatih Özcan

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Kayıt
7 Aralık 2008
Mesajlar
3.456
Beğeniler
3.307
Şehir
Astana
#1
Dr. James N. Dornbush*
Dwayne A. Rollag*
William J. Trygstad**

INTRODUCTION
Various methods of treating potato processing wastes have been
utilized during the past years, however, very limited data are available
in the 1 iterature demonstrating the effectiveness of an anaerobicaerobic
la oon system for treating these wastes. Midwest Foods
Corporation 4 formerly Fairfield Products, Incorporated) of Clark, South
Dakota, presently utilizes such a system to treat the waste water
generated from the production of frozen French-fried potatoes. The
following discussion provides a case hi story of the successes and
failures of the system.
When the potato processing plant was constructed prior to the 1970-
71 season, relatively little consideration was given to design and
operation of the waste handling system. The waste water treatment
facilities consisted of a screen and 25-acre stabilization pond. After
the initial operating season in 1970-71, numerous complaints regarding
offensive odors from the system were received by company and state
authorities. Data obtained in June 1971 revealed that the stabilization
pond was severely over1 oaded. The five-day biochemical oxygen demand
(BOD5) of the liquid contents was 1180 milligrams per liter. Acting
upon the complaints, state authorities directed the company to construct
facilities capable of satisfactorily treating the wastes prior to the
1971-72 processing season.

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