References
- EM Pakistan” EM Technology in Petroleum Industry”, (No Date) URL:http//:www.embiotech.org
- Hega; T. and Parr; J. F., “Beneficial Effective Microorganisms for a Sustainable Agriculture and Environment”, International Nature Farming Research Center, Atami, Japan 1994.
- Shintani, M.,”A Microorganisms Used for the Production of EM-1″ EMRO USA Effective Microorganisms, 2005.
- Ibo, Z. and James H,” Example of an Integrated Biosystem, Incorporating Effective Microorganisms”, Water Management Conference, Worcester Polytechnic Institute, 16 June 2004.
- Nathan; S., and Robert; A. P, “Effective Microorganism (EM) and Wastewater Systems”, University of New England, 2003.
- Kim S. U, Y.H. Cheong, D.C. Seo, J.S. Hur, J.S. Hero and J.S. Cho “Characterization of Heavy Metal to Lerance and Biosorption Capacity of Bacterium Strain CPB4″, (Bacillus spp.)” doi: 10.2166/wst.2007.
- Khanafari A., S. Eshghdoost, A. Mashinchian “Removal of Lead and Chromium from Aqueous Solution by Bacillus Circulans Biofilm”, Iran. J. Environ. Health. Sci. Eng., 2008, Vol. 5, No. 3, pp. 195-200
Tikrit Journal of Engineering Sciences (2011) 18(1) 9- 18 (Arabic)
Removal of Chromium and Lead from Industrial Wastewater Using Effective Microorganisms (EM) Technolog
Mohamed Hilal | Waleed Al Abed Raba | Nuha Houaa |
Chemical Eng. Dept. , Al-Baath Univesity, Syria. | Enviromental Eng. Dept., Tikrit University, Iraq. | Homs Sugar Company, Syria |
Abstract
In this research, an attempt is made on the ability of aerobic treatment of synthetic solutions containing lead and chromium using effective microorganisms within the reactor. To achieve the desired objectives of the research, synthetic aqueous solutions of lead and chromium was used in the concentration of chromium and lead ions of 5, 10,50 and 100 mg / l .The work was done at constant pH equal to 4.5 and temperature of 30 ± 1 º C. Effective microorganisms solutions was added to the reactor at Vol.% of 1/50 ,1/100 ,1/500 and 1/1000, with retention time was 24 hours to measure the heavy metals concentration the atomic absorption device was used. The experimental results showed that each 1mg / l of lead and chromium ions need 24 mg of effective microorganisms to achieve removal of 92.0% and 82.60% for lead and chromium respectively. Increasing the concentration of effective microorganisms increases the surface of adsorption and thus increasing the removal efficiency. It is found that the microorganisms activity occur in the first five hours of processing and about 94% of adsorption capacity of biomass will take place. It is also found the selectivity of microorganisms to lead ions is higher than for chromium ions.
Download Full-text PDF
Keywords: Effective Microorganisms, Removal of Chromium and Lead, Heavy.
How to cite
TJES: Hilal A., Al Abed Raba W. Houaa, N. Removal of Chromium and Lead from Industrial Wastewater Using Effective Microorganisms (EM) Technology. Tikrit Journal of Engineering Sciences 2011; 18(1): 9-18 (in Arabic)
APA: Hilal A., Al Abed Raba W. Houaa, N., (2011). Removal of Chromium and Lead from Industrial Wastewater Using Effective Microorganisms (EM) Technology. Tikrit Journal of Engineering Sciences, 18(1), 9-18 (in Arabic)