KAHRAMANMARAS SUTCU IMAM UNIVERSITY JOURNAL OF NATURAL SCIENCES, cilt.16, sa.2, ss.48-55, 2013 (ESCI, TRDizin)
Groundwater contain nitrate which on the limits set for drinking purposes in many countries. In our country, nitrate concentrations is known rising up 180 mg/L NO3. Increased use of nitrogenous fertilizers and the discharge of untreated domestic-industrial wastewaters cause increase of nitrate in groundwater. Therefore, investigate of the economic and efficient nitrate removal technologies require for groundwater treatment. Autotrophic denitrification from nitrate removal technologies are widely used. In addition, ground water is contaminated many pesticides and different chemicals subtance. endosulfan Located within organochlorine pesticides, has higher than resolution other organochlorine pesticides. For this reason, endosulfan treatment and effect on treatment processes should be investigated. In this study, while nitrate removal from drinking water was provided with sulfur-based autotrophic denitrification, effect of endosulfan, one of the pesticides the dangerous and harmful, denitrification and bacterial diversity was investigated. The nitrate removal was 93% in high endosulfan concentration in the column reactor. Pseudomonas sp. change was shown before and after adding of pesticide with Fluorescence In-Situ Hybridization (FISH). According to the results of FISH, effect of 200 ppb of endosulfan on the Pseudomonas sp. was not shows decrease.