Modeling the effects of irrigation by contaminated groundwater

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Tezin Türü: Yüksek Lisans

Tezin Yürütüldüğü Kurum: Orta Doğu Teknik Üniversitesi, Mühendislik Fakültesi, Jeoloji Mühendisliği Bölümü, Türkiye

Tezin Onay Tarihi: 2018

Öğrenci: YASİN GÜRAY HATİPOĞLU

Eş Danışman: KORAY KAMİL YILMAZ, ZÖHRE KURT

Özet:

Pump and fertilize, while removing nitrate the groundwater, can also reduce nitrate and pesticide requirement. In this study, we constructed groundwater models via HYDRUS 1D for one-hectare maize field in prevalent soils in Turkey and Eskişehir, Adana, Şanlıurfa, Düzce climates in Turkey, assessed the most likely promising conditions for pump and fertilize, and found that even in 50 mg/L nitrate concentrations, this process is beneficial, especially in Şanlıurfa similar climates (687 TL/year). Nitrogen leaching loss were more in sandy soils. Later, we modeled the atrazine and cypermethrin contaminated water irrigation, with also using leonardite as adsorbent to facilitate controlled desorption of pesticides. We found that using leonardite, one can both effectively immobilize the contaminant or dilute its concentration to its 1/5, 1/10 of applied concentration.