Treatment of Potato Processing Waste Water on Agricultural Land

Smith, J.H. (1976) Treatment of Potato Processing Waste Water on Agricultural Land. Journal of Environment Quality. 5(1):113-116.

PDF 289.pdf Download (225kB)

Abstract

The chemical oxygen demand (COD) and the total N and
NO₃-N concentrations in potato (Solanum tuberosum L.) processing
plant waste water and in the soil solution at several depths in a
treatment field where the waste water was applied were studied for
a 2-year period. The COD decreased 95 to 99% from 850 to 2,000
ppm in waste water to 4 to 40 ppm after passing through 150 cm
of soil. A similar decrease in the total N concentration was found.
The NO₃-N concentration in the waste water ranged from 0.1 to
9.0 ppm and the concentration in the soil solution at the 150-cm
depth was generally < 1.0 ppm. During the second year 1,076 kg
N/ha were applied in the waste water. The grass crop removed
about 320 kg N/ha (about 30% of that applied). Results indicated
that only about 10 kg N/ha passed into the water table each year.
Land disposal is a practical method for disposing of potato processing
waste waters with a low pollution potential.

Item Type:	Article
NWISRL Publication Number:	0289
Subjects:	Irrigated crops > Potato Mass Import - autoclassified (may be erroneous)
Depositing User:	Dan Stieneke
Date Deposited:	20 Nov 2010 21:51
Last Modified:	15 Feb 2017 23:36
Item ID:	261
URI:	https://eprints.nwisrl.ars.usda.gov/id/eprint/261