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The Micro Ecosystem Restoration Mechanism Applied for Feasible Research of Lakes Eutrophication Enhancement

Authors: Ching-Tsan Tsai, Sih-Rong Chen, Chi-Hung Hsieh


The technique of inducing micro ecosystem restoration is one of aquatic ecology engineering methods used to retrieve the polluted water. Batch scale study, pilot plant study, and field study were carried out to observe the eutrophication using the Inducing Ecology Restorative Symbiosis Agent (IERSA) consisting mainly degraded products by using lactobacillus, saccharomycete, and phycomycete. The results obtained from the experiments of the batch scale and pilot plant study allowed us to development the parameters for the field study. A pond, 5 m to the outlet of a lake, with an area of 500 m2 and depth of 0.6-1.2 m containing about 500 tons of water was selected as a model. After the treatment with 10 mg IERSA/L water twice a week for 70 days, the micro restoration mechanisms consisted of three stages (i.e., restoration, impact maintenance, and ecology recovery experiment after impact). The COD, TN, TKN, and chlorophyll a were reduced significantly in the first week. Although the unexpected heavy rain and contaminate from sewage system might slow the ecology restoration. However, the self-cleaning function continued and the chlorophyll a reduced for 50% in one month. In the 4th week, amoeba, paramecium, rotifer, and red wriggle worm reappeared, and the number of fish flies appeared up to1000 fish fries/m3. Those results proved that inducing restorative mechanism can be applied to improve the eutrophication and to control the growth of algae in the lakes by gaining the selfcleaning through inducing and competition of microbes. The situation for growth of fishes also can reach an excellent result due to the improvement of water quality.

Keywords: Ecosystem restoration, eutrophication, lake.

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[1] W. J. Mitsch, and S. E. Jorgensn, Ecological Engineering: An Introduction to Ecotechnology, New York: Wiley, 1989.
[2] A. Brookes, and F. D. Shields Jr, River Channel Restoration, West Sussex, England: John Wiley & Sons, 1996.
[3] R. L. Vannote, G. W. Minshell, K. W. Cummins, J. R. Sedell, and C. E. Cushing, "The river continuum Concept," Can. J. Fish. Aquat. Sci., vol. 37, pp. 130-137, 1980.
[4] N. F. Gray, Biology of Wastewater Treatment, London: Oxford Science Publications, 1989.
[5] L. C. Waal, A. Large, and P. M. Wade, Rehabilitation of Rivers Principles and implementation, West Sussex, England: John Wiley & Son, 1998.
[6] N. G. Vine, W. D. Leukes, and H.Kaiser, "Probiotics in marine larviculture," FEMS Microbiol. Rev. vol. 30, pp. 404-427, 2006.
[7] J. Brunt, R. Hansen, D. J. Jamieson, and B. Austin, "Proteomic analysis of 27. rainbow trout (Oncorhynchus mykiss, Walbaum) serum after administration of probiotics in diets", Veterinary Immunology and Immunopathology, vol. 121, no. 3-4, pp. 199-205, Feb. 2008.
[8] X. Jin, Q. Xu, and C. Yan, "Restoration scheme for macrophytes in a hypertrophic water body, Wuli Lake, China" Lakes & Reservoirs: Research and Management, vol. 11, pp. 21-27, 2006.
[9] A. E. Greenberg, R. R. Trussel, and L. S. Clesceri Standard Method for the Examination of Water and Wastewater, 16th ed., APHA, AWWA, WPCF, 1985, pp. 1057-1067.
[10] A. E. Greenberg, R. R. Trussel, and L. S. Clesceri Standard Method for the Examination of Water and Wastewater, 16th ed., APHA, AWWA, WPCF, 1985, pp. 1131-1140.
[11] H. J. Wang, X. M. Liang, P. H. Jiang, S. K. Wu, and H. Z. Wang, "TN:TP ratio and planktivorous fish do not affect nutrient-chlorophyll relationships in shallow lakes" Freshwater Biology, vol. 53, pp. 935-944, 2008.