CONSIDERATION TO INTERCHANGE FOR WASTE WATER PURIFIED OF MUNICIPAL TO SOURCES OF UNDERGROUND WATER FOR GRICULTURE PARTS (SPECIAL IN QAZVIN CRITICAL PLATEAU)

Since 1345 A.H (solar calendar) Qazvin plateau was advertised as prohibited although water requirement is increasing in different parts and Qazvin province is one of important agronomy in country. Nowadays we are facing a water resource crisis particularly in groundwater resources. In this paper we show: 1- Quantity and quality status of Qazvin source and signing on GIS map. 2- Quantity and quality status of sewage. 3- Reuse of sewage in agricultural parts along with groundwater. 4- Social effects of sewage reuse. 5- Technical and environmental surveying of sewage reuse in agronomy part and its thrift in groundwater use with farmers.