Removal of Nitrate from Groundwater by Using Effective Microorganisms (EM)
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Abstract
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.
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References
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 DOI: https://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. DOI: https://doi.org/10.1002/j.1551-8833.1993.tb05972.x
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 DOI: https://doi.org/10.3923/jas.2010.558.563
Casey, T.J., (1997)”Unit treatment processes in water and wastewater engineering”. Jone Wiley & Sons.
Tchobanoglous, G. (1991) “Water Engineering Treatment; Disposal and Reuse”, Mc Graw – Hill, Ince pp 432-437.
SUNDSTROM, DONALD and KLEI, HERBERT (1979).“WASTEWATER TREATMENT”Revised by Prentice-Hall, Inc., Englewood Cliffs. PP. 162-163.
Higa T. (1991).”EffectiveMicroorganisms: A biotechnology for Mankind”, In. J.F Parr. S.B andC.E Whitman Proceeding of the First International Conference on Kyusei, Nature Farming U.S. Department of Agriculture Washington, D.C., USA.
Higa T. (2004)”Microorganisms For Sustainable Community Development”, A National Case Study of Cooperation and Co-Prosperity in North Korea for the Preservation of Environmental, Agricultural, Economic, and Cultural Integrity
المعهد العالي للعلوم التطبيقية والتكنولوجيا (2003),مختبرالدارسات البيئية,الجمهورية العربية السورية.
EM Technology (1998). “EffectiveMicroorganisms for a sustainable agriculture and Environment”, EMTech. Product 1,http://emtech.org/prod01.htm.
Freiting G., (2000). “The use of Effective Microorganisms in Organic Waste Management”, Effective [email protected]
Usher W. (2008). “ The Use ofEffective Microorganism Technology in the Wastewater Treatment Ponds of the BelizeSugar Industries Ltd”, Belize Agro- Enterprise Limited-BAEL.
Sung-Hee Roh, Young-Jae Yum and Sun-LL Kim (2001).“Removal of Nitrogen and Phosphorus in the Wastewater by Effective Microorganisms”, Applied Chemistry, Vol.5, No.2, PP.180-183.
Dahab Mohamed F. and Lee Young Woon, (1988) “Nitrate Removal from Water Supplies UsingBiological Denitrification”, Journal(Water Pollution Control Federation), Vol. 60, No. 9, WPCF, pp. 1670-1674
حوري, سماهر محمد (2011). “دارسة تأثير بعض العوامل التشغيلية للخلية الكهروحيوية على قابلية نزع ماء الحمأة المنشطة باستخدام المعالجة الهوائية واللاهوائية” رسالة ماجستير, كلية الهندسة, جامعة تكريت.