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Abstract
The current study was carried out at Ismailia Wastewater
Treatment Plant, Serabium, to evaluate wastewater treatment efficiency
by monthly recording of influent and effluent characteristics, during the
period from 8/1999 to 7/2000 and the possibility .use of treated
wastewater for corn irrigation.
The following results were obtained:
l-Treated wastewater (effluent) contains magnitude concentrations of
total-N and- P, ammonia and available P.
2- With the exception of Ni, heavy metal concentrations were low as
compared with the concentrations recommended values proposed for
continuous irrigation.
3- Although wastewater treatment was effective in reducing microbial
counts in reclaimed wastewater, microbial counts were still high as
compared with safe levels or thresholds proposed by WHO (1989)
guidelines.
4-Maize grain yield, shoot dry weight, ears and 1000-grain weight, grain
NPK contents and uptake were significantly increased within all
fertilization treatments irrigated by treated wastewater.