Integrated Management Of Treated Wastewater
Reuse In Irrigation And Its Role In Environment
Conservation
Author(s)
A. A. Al-Othman & M. M. Selim
Abstract
Availability of suitable water is considered one of the most important factors in
increasing and expanding cultivated areas. In arid and semi-arid areas where
water is scarce, several studies and researches have indicated the beneficial role
of reusing wastewater in partially solving this problem. Moreover, the reuse of
wastewater helps in protecting the environment as it reduces pollution and causes
no harm to plants, groundwater and human health. Therefore, the main objective
of this study is to pin point the economic benefits of reusing secondary treated
wastewater, which begins by separating solid materials from liquid and then
activating living microorganisms as a means of making the best use of the
existing resources.
In this study, field surveys were made for summer and winter crops
throughout three seasons in rotation to evaluate the impact of irrigation with
secondary treated wastewater on the yield and quality of some field crops in
comparison to canal water. In each season, treatments included using two
sources of irrigation water; i.e. wastewater and canal water, and two fertilization
treatments (application recommended rates of chemical fertilizers and control).
Crop selection included fodder, oil crop, sugar crop and grain crops. Results
demonstrated that crops irrigated with secondary treated wastewater were
equally similar to or significantly better than those irrigated with canal water.
Heavy metal concentrations were very low and had no effect on the crop quality
or animal and human dietary intake.
Keywords
reuse treated wastewater, irrigation, environment conservation
Related Book
Other papers in this volume
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