(free water surface, FWS) (subsurface flow, SSF) 2,4-D((2,4- dichlorophenoxy acetic acid) FWS SSF. 0.67m 0.48m 0.32m FWS.

Transcription

1 859 1 CHIA-NAN ANNUAL BULLETIN VOL. 30, PP , ,4-D * ** ** *** * ** *** (free water surface, FWS) (subsurface flow, SSF) 2,4-D((2,4- dichlorophenoxy acetic acid) FWS SSF 0.67m 0.48m 0.32mFWS 18cm SSF 45% 1~2mg/L2,4-D 3mg/L HRT5 0.03m/d SSF FWS 28.02~88.72% FWS 13.01~83.83% SSF FWS 2,4-D SSFFWS 2,4-D 2-4-D 2,4-D (natural wetland) (constructed wetland)

2 86 2,4-D (1) (2) (FWS, free water surface system) (emergent plants) 50% (SSF, subsurface flow system) (3-4) (5-8) (9-10) (11-12) (12-14) (15-16) (17) (18-19) (20-21) (22) 2-4-D 2-4-D 2-4-D 2-4-D 2-4-D 1 (free water surface system, FWS) (subsurface flow system, SSF) 1-2 ppm 2-4-D HRT m/d

3 87 HRT 1 2,4-D phdosscodtoc (23) 2,4-D HPLC (Jasco PU-980 intelligent HPLC pump, Jasco 875-UV intelligent UV/VIS detector, SIC chromatocorder 12 C8 5m 3.9mm 15cm) 0.22 m FWS 2-4-D FWS D % 2-4-D % ,4-D % 2-4-D

4 88 2,4-D 2 FWS 2-4-D SSF 2-4-D 3 SSF 2-4-D FWS D % 77.86% % SSF FWS SSF SSF 2-4-D 4 SSF 2-4-D

5 89 FWS SSF 2-4-D 2 4FWS SSF 2-4-D SSF 28.02~88.72% FWS 13.01~83.83% DO SSF DO 2-4-D Cl 2-4-D FWS 2-4-D 2-4-D SSF FWS 2-4-D SSCOD NSC E Hammer, D. A., Edito., Constructed wetland for wastewater treatment-municipal, industrial and agricultural, Lewis Publishers, inc., Michigantnr, Metcalf & Eddy, Ch13 Natural treatment system, In Wastewater Engineering (3ed), Mcgraw-Hill, Inc. New York, pp , Thomas, P. R., Glover, P. and Kalaroopan, T., An evaluation of pollutant removal from secondary treated sewage effluent using a constructed wetland, Wat. Sci. Tech., 32(3), pp , Juwarkar, S., Oke, B., Juwarkar, A. and Patnaik, S. M., Domestic wastewater treatment through constructed wetland in India, Wat. Sci. Tech., 32(3), pp , Vrhovsek, D., Kukanja, V. and Bulk, T., Constructed wetland for industrial waste water treatment. Wat. Res. 30(10), pp , Yin, H. and Shen, W., Using reed beds for witer operation of wetland treatment system for wastewater, Wat. Sci. Tech. 32(3), pp , Comin, F. A., Romero, J. A., Astorga, V. and Garcia, C., Nitrogen removal and cycling in restored wetlands used as filters of nutrients for agricultural runoff Wat. Sci. Tech. 35(5), pp , Kadlec, R. H., Burgoon, P. S. and Henderson, M. E., Integrated natural systems for treating potato processing wastewater, Wat. Sci. Tech. 35(5), pp , De Maeseneer, J. L., Constructed wetlands for sludge dewatering, Wat. Sci. Tech. 35(5), pp , Bulc, T., Vrhovsek, D. and Kukanja, V., The use of constructed wetland for landfill leachate

6 90 2,4-D treatment, Wat. Sci. Tech. 35(5), pp , Worall, P., Peberdy, K.J. and Millett, M.C., Constructed wetlands and natural conservation, Wat. Sci. Tech. 35(5), pp , Green, M. B., Griffin, P., Seabridge, J. K. and Dhobie, D., Removal of bacteria in subsurface flow wetlands,wat. Sci. Tech. 35(5), pp , :aber, J., Perfler, R. and Haberl, R., Two strategies for advanced nitrogen elimination in vertical flow constructed wetlands,wat. Sci. Tech. 35(5), pp , von Felde, K. and Kunst, S., N-and COD-removal in vertical-flow systems, Wat. Sci. Tech. 35(5), pp , Mungur, A. S., Shutes, R. B. E., Revitt, D. M. and House, M. A., An assessment of metal removal by a laboratory scale wetlands, Wat. Sci. Tech. 35(5), pp , Lakatos, G., Kiss, M. K., Kiss, M. and Juhasz, P., Application of constructed wetlands for wastewater treatment in Hungary, Wat. Sci. Tech. 35(5), pp , Ottova, V., Balcarova, J. and Vymazal, J., Microbial characteristics of constructed wetlands Wat. Sci. Tech. 35(5), pp , Jing, Shuh-Ren, Yin -Feng Lin, Der-Yuan Lee, and Tze-Wen Wang, Nutrient removal from polluted river water by using constructed wetlands, Bioresource Technology, 76(2), pp , S. R. Jing, Y. F. Lin, D. Y. Lee, and T. W. Wang, Using constructed wetland systems to remove solids from highly polluted river water Water Science Technology: Water Supply, 1(1), pp , pp Chia-Nan Annual Bulletin,. 28pp Standard Methods for the Examination of Water and Wastewater, 16th Ed., American Public Health Association, Inc., New York, 1985.

7 CHIA- NAN ANNUAL BULLETIN VOL. 30, PP , ABSTRACT The Study of Herbicide 2,4-D for Treating Efficiency in Constructed Wetland Tze-Wen Wang*, Yin-Feng Lin**, Shuh-Ren Jing** and Der-Yuan Lee*** *Department of Biotechnology, **Department of Environmental Engineering and Science, *** Department of Environmental Resource Management, Chia-Nan University of Pharmacy and Science, Tainan, Taiwan 71710, R.O.C. ABSTRACT This research was using free water surface (FWS) and subsurface flow (SSF) constructed wetland (CW) systems which planted different macrophates to treat an artificial wastewater containing herbicide, 2,4-D, to study the treatment efficiency. The influent water flowed into three FWS and SSF systems which were connected in series, and the length, wide and height were 0.67, 0.48 and 0.32 meter. The bottom of FWS systems were planted cattails and reeds in 18cm deep soil and the SSF systems were planted into gravels. The hydraulic retention time (HRT) was controlled at about 5 days. Water samples were taken at inflow and outflow of the systems regularly. Data showed the removal efficiency of SSF system were 28.02~88.72% better than 13.01~83.83% of FWS systems, and cattails were better than reeds. The increase of Cl - showed the degraded of 2,4-D in constructed wetlands. Key words: Constructed wetland, 2,4-D