الحسين, حمود محمد حمود و حجاز, سلوى وضاي, محمد (2008). “معالجة المياه الجوفية الملوثة بشوارد النترات في مفاعل السرير المميع”, مجلة جامعة دمشق للعلوم الهندسية المجلد الرابع والعشرون- العدد الثاني
 Vasiliadou I.A., Karanasios K.A., Pavlou S. and Vayenas D.V. (2009)“Experimental and modeling study of drinking water hydrogenotrophic denitrification in packed-bed reactors” Journal of hazardous materials, 165, 812-824,http://dx.doi.org/10.1016/j.jhazmat..2008.10.067
 Liessens, J., Germonpre, R., Beernaert, S. and Verstraete, W.(1993). “Removing nitrate with a methylotrophic fluidized bed” J.AWWA 85, PP.144-154.
 Magram Saleh Faraj, (2010).”Drinking Water Denitrification in a Packed Bed Anoxic Reactor: Effect of Carbon Source and ReactorDepth”, Journal of Applied Sciences.558-563 :)7(10
Tikrit Journal of Engineering Sciences (2013) 20(1) 39-50
Removal of Nitrate from Groundwater by Using Effective Microorganisms (EM)
|Mohamed Burhan Ali|
|Environmental Dept., Tikrit University, Iraq|
In this research, the ability of effective microorganisms (EM) to remove nitrate from groundwater had been studied. Many samples were taken and tested from several wells in Tikrit University. The tests showed that the samples of groundwater contained a few nitrate concentrations (less than 1 mg/l) so that the wastewater was a synthetic solution by adding potassium nitrate (KNO3) to the groundwater as a nitrate source within the range of (50–150) mg/l. the ratios of EM were used in the experiments ranged between (1:250) to (1:5000). While the hydraulic retention times 24 and 48 were used in the experiments. The result showed that the removal efficiency of nitrate was increased by increasing the ratio of EM in the processing unit and the maximum nitrate removal was 82% when the nitrate concentration and EM ratio were 150 mg/l and (1:250) respectively and HRT was 48 hr.
Keywords: Nitrate, Groundwater, Effective Microorganisms.