Arash Azarpanh - M.SC of Agronomy and plant breeding
Armita Azarpanah - Pharmacognosy Faculty, Jundishapur university of medical sciences

The objective of this paper is to provide a review of the characteristics of wastewater used for irrigation, and the reasoning behind the international guidelines presently used in regulating wastewater reuse for agriculture. This paper presents various systems of wastewater treatment available and discusses their benefits and shortcomings. A selective review of recent empirical studies identifies major impacts both positive and negative impacts of wastewater irrigation. Finally, This paper provides the review of environmental valuation techniques for analyzing impacts of wastewater uses in agriculture, and suggest a framework for application of some of these techniques

wastewater, reuse water, agriculture, Impacts, Techniques, irrigation