The removal of nitrate and pesticides from contaminated water


ASLAN Ş., Turkman A.

Conference of the NATO Advanced Study Institute on Management and Sustainable Development of Urban Groundwater Systems, Baku, Azerbaycan, 6 - 15 Ağustos 2004, cilt.74, ss.381-383, (Tam Metin Bildiri)

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası: 74
  • Basıldığı Şehir: Baku
  • Basıldığı Ülke: Azerbaycan
  • Sayfa Sayıları: ss.381-383
  • Anahtar Kelimeler: denitrification, pesticides, nitrate, water treatment, trifluralin, fenitrothion, endosulfan, bioreactors, agricultural pollutants, DRINKING-WATER, BIOLOGICAL DENITRIFICATION, CARBON SOURCE, GROUNDWATER, BIODENITRIFICATION
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

A water-saturated biological denitrification system was employed to remove selected pesticides and nitrate from drinking waters. In the study, approximately 99% nitrate removal was observed, but most of the samples included nitrite. Up to 95% removal of pesticides was also observed. The lowest removal efficiency of nitrate (63%) was observed when the temperature dropped sharply from 18 T to 14 T. Despite such oscillations, high removal efficiencies for trifluralin, fenitrothion and endosulfan (alpha+beta) were observed and the highest nitrite concentration was 16 mg/l in the effluent of the reactor.