Browse > Article
http://dx.doi.org/10.5352/JLS.2005.15.4.584

Optimization for Phosphorus Remove by Loess Ball Using Chromobacterium  

Choi Du Bok (Department of Chemical Engineering, Chosun University)
Lee Choon-Boem (Department of Chemical Engineering, Chosun University)
Cha Wol-Suk (Department of Chemical Engineering, Chosun University)
Publication Information
Journal of Life Science / v.15, no.4, 2005 , pp. 584-589 More about this Journal
Abstract
To investigate factors affecting the removal of phosphorus from the practical wastewater in the F-STEP PROCESS using a loess ball and Chromobacterium WS 2-14, first, the loess ball size and calcining temperature, initial pH, initial phosphorus concentration, working temperature, and aeration were studied. A $2\~4mm$ of loess ball made at $960^{\circ}C$ of calcining temperature was the most suitable one for the removal of phosphorus. When the initial pH was increased from 3.0 to 6.0, the removal efficiency of phosphorus was increased. Especially, at 6.0 of initial pH, the maximum removal efficiency of phosphorus was $88.7\%$. The maximum removal efficiency of phosphorous was gained, 1.8mg/h when the initial concentration of phosphorous was 5.0mg/1. When the operating temperature was $30^{\circ}C$, the maximum removal efficiency of phosphorus was obtained. In the case of aeration, when it was increased from 0.5 to 5.0L/min, the removal efficiency of phosphorus was increased. On the other hand, above 7.0 L/min, the removal efficiency of phosphorus did not increased. Using the optimum operation conditions, pilot tests for the effective removal efficiency of phosphorus were carried out for 65 days. The average removal efficiency of phosphorus was $92.0\%$. The average removal efficiency of COD, BOD, and SS were 77.1, 74.2, and $86.4\%$, respectively. from the results, it can be concluded that F-STEP PROCESS using loess ball might be useful process for phosphorus removal.
Keywords
Phosphorus removal; loess ball; biofilter system; Chromobacterium;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Jeong, E. D., H. S. Kim, M. S. Won, J. H. Yoon, K. W. Park, and U. H. Paek. 1999. Adsorption characteristics of Pb (II), Cu (II), Cr (II), and Zn (II) ions by domestic loess minerals. J. Kor. Enviro. Sci. Soci. 8, 497-503
2 John, G. C. and T. George. 199J. Waster Engineering treatment, disposal, and reuse, 3rd edition. McGraw- Hill, Inc
3 Lee, K. Y. and C. G. Lee., 2002. Nitrogen removal from wastewater by microalge without consuming organic carbon sources. J. Microbiol. Biotechnol. 12, 979-985
4 Powell, L. W. 1990. Immobilized biocatalyst technology, pp 369-394, In Microbial Enzymes and Biotechnology. Elsevier Applied Science. London
5 Sedlak, R. I. 1991. Phosphorus and nitrogen removal from municipal wastewater, 2nd ed. Lewis publishers, Florida. 49-67
6 Singh, Y. 2003. Photosynthetic activity and lipid and hydrocarbon production by alginate immobilizes cells of Batryococcus in relation to growth. J. Microbiol. Biotechnol. 13, 687-691
7 Sorg, T. J. 1978. Treatment technology to meet the interim primary drinking water regulation for inorganics. J. Am. Wat. Wor. Assoc. 70, 105-109
8 Amant, P. P. and P. L. Mccarty. 1969. Treatment of high nitrate water. J. Am. Wat. Wor. Assoc. 61, 659-663
9 Cha, W. S., H. I. Choi, D. B. Lee, and J. M Cha. 2003. Isolation and characterization of denitrification bacteria. K. J. Biotechnol. Bioeng. 18, 461-465
10 Cha, W. S., K. H. Kwun, H. I. Choi, D. B. Lee, S. H. Kang, and H. S. Kim. 2003. A study on phosphorous removal of loess ball. J. Kor. Ind. Eng. Chem. 14, 764-768
11 Cha, W. S., H. I Choi, D. B. Lee, and S. H. Kang. 2002. A study on separation and identification of strains for effective removal of T-P and T-N. Theor. Appl. Chem. Eng. 8, 44-49
12 Choi, D.E., D. B, Lee, and W. S. Cha. 2005. Process development for effective denitrification by biofilter using loess ball. J. Microbiol. Biotechnol. 15, 412-420
13 Choi, E. S., M. K. Park, H. W. Park, and H. S. Lee. 1982. Nutrient contents in domestic wastewater. J. Kor. Soc. Wat. Pollut. Res. Contr. 8, 188-192
14 Dahab. M. F. 1978. Treatment alternatives for nitrate contaminated groundwater supplies. J . Environ. Sys. 17, 65-71
15 DIN. 1993. Water quality determination of phosphate (38 405-D11-4) German standard and Technical Rules. Berlin. e.V. Beuth Verlag, GmbH
16 Hammond, A. L. 1971. Phosphate replacements. Science, 172, 361-363   DOI