Investigation of Irrigation Influence by Domestic Wastewater on Soil Characteristics

Fayaz Aghayari ； Hossein Hassanpour Darvishi

《Research Journal of Applied Sciences, Engineering and Technology》 4卷20期 (2012/10) Pp. 3872-3874

並列摘要

To investigate the beneficial impacts of wastewater on soil properties, we conducted an experiment in the lysimeter by measuring certain features essentially related to soil characteristics. Our objectives in this study were (i) the wastewater infiltration by soil and (ii) the effect of wastewater on soil properties. In this experiment, 9 lysimeter were used, 1, 2 and 3 lysimeters irrigated by domestic wastewater. Then, first drainage water accumulated from these lysimeters and 4, 5 and 6 lysimeters irrigated by this water and secondary drainage water accumulated from upon lysimeters. In order to comparison soil properties, 7, 8 and 9 lysimeters irrigated by normal water and finally, soil and water properties analyzed in each stage. The results showed that soil could filtering the wastewater and reduced BOD_5 and COD of wastewater sorely. Also, irrigation with wastewater increased nutritive elements in soil that can be source of nutrition for plants. Our findings may give applicable advice to commercial farmers and agricultural researchers for management and proper use of water.

並列關鍵字

Agricultural economics ； domestic wastewater ； irrigation