Does Embankment Improve Quality of a River? A Case Study in To Lich River Inner City Hanoi, with Special Reference to Heavy Metals

Nguyen Thi Thuong, Minoru Yoneda, Yasuto Matsui

Lab of Environmental Risk Analysis, Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Kyoto, Japan.

DOI: 10.4236/jep.2013.44043                

Abstract

To Lich River (TLR) system receives wastewaters from a population of nearly two million people and 100 manufactories of five industrial zones in inner city Hanoi, Vietnam. To improve quality of TLR, the embankment was carried out in 1998 and finished in 2002, resulted in width of 20 - 45 m, depth of 2 - 4 m, and maximum water flow capacity of 30 m³/s. Water and sediment quality indices based on heavy metal concentrations were used to evaluate current river environment compared to that of pre-embankment. Mass balance model was employed to estimate total metal loads for specific river reaches, which corresponds to various types of wastewater discharged along the river. The results indicated that currently there is about284,000 m³sediment accumulated in TLR bed, which is under high contamination of Cr, Mn, Fe, Ni Cu, Zn, As, Cd, and Pb with a total of 7347 tons of all concerned metals. Domestic-discharged river reaches received much lower metal loads, roughly 8% - 28% compared to river reaches of both domestic and industrial inputs. Total load of all nine concerned metals at the end of TLR is161.7 kg/day, which is finally discharged to Nhue River at South Hanoi. Water quality was improved much right after finishing embankment, then it gradually deteriorated. Meanwhile, sediment quality became even much worse after embankment. Relative river quality index as equal weight for both water and sediment quality indices indicated that quality of TLR was not much improved after the embankment. It even became worse due to the urbanization in recent years.

Keywords

Industrial Discharge; Mass Balance; Metal Load; River Quality Index; Sediment Accumulation

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	M. Schiff and L. A. Winters, “Regional Cooperation, and the Role of International Organizations and Regional Integration,” Policy Research Working Paper, World Bank, Washington DC, 2002.
[2]	R. Saracci and P. Vineis, “Disease Proportions Attributable to Environment,” Environmental Health, Vol. 6, 2007, p. 38. doi:10.1186/1476-069X-6-38
[3]	A. Pruss-Ustun and C. Corvalan, “How Much Disease Burden Can Be Prevented by Environmental Interventions?” Epidemiology, Vol. 18, No. 1, 2007, pp. 167-178. doi:10.1097/01.ede.0000239647.26389.80
[4]	A. Pruss-Ustun and C. Corvalan, “Preventing Disease through Healthy Environments. Towards an Estimate of the Environmental Burden of Disease,” World Health Organization, Geneva, 2006.
[5]	K. J. Rothman and S. Greenland, “Modern Epidemiology,” Lippincott Williams and Wilkins, Philadelphia, 1998.
[6]	M. Susser, “What Is a Cause and How Do We Know One? A Grammar for Pragmatic Epidemiology,” American Journal of Epidemiology, Vol. 133, No. 7, 1991, pp. 635-648.
[7]	T. Schueler, “A Practical Manual for Planning and Designing Urban BMPs,” Metropolitan Council of Governments, Washington DC, 1987.
[8]	K. J. Crawford and D. R. Lenat, “Effects of Land Use on Tile Water Quality and Biota of Three Streams in The Piedmont Province of North Carolina,” US Geological Survey, Water Resources Investigations Report 89-4007, Raleigh, 1989.
[9]	C. F. Mason, “Biology of Freshwater Pollution,” Longman Group Ltd., New York, 1981.
[10]	H. P. Guy, “Urban Sedimentation in Perspective,” Proceeding of the American Society of Civil Engineers, Journal of the Hydraulics Division December, Vol. 98, 1972, pp. 2099-2116.
[11]	O. S. Owen, “Natural Resource Conservation,” Mac-Millan, New York, 1975.
[12]	C. E. Simmons, “Sediment Characteristics of North Carolina Streams,” USGS Open-File Report 870-701, Raleigh, 1987.
[13]	V. Novotny and G. Chesters, “Delivery of Sediment and Pollutants from Nonpoint Sources: A Water Quality Perspective,” Journal of Soil and Water Conservation, Vol. 44, No. 6, 1989, pp. 568-576. doi:10.2489/jswc.64.3.173
[14]	G. Bortone, E. Arevalo, I. Deibel, H. D. Detzner, L. de Propris, F. Elskens, A. Giordano, P. Hakstege, K. Hamer, J. Harmsen, A. Hauge, L. Palumbo and J. van Veen, “Sediment and Dredged Material Treatment,” Journal of Soils and Sediments, Vol. 4, No. 4, 2004, pp. 225-232. doi:10.1007/BF02991117
[15]	V. C. Nguyen, “Establishing Scientific Basics for Surface Water Supplement Solution to Improve River Water Quality in Hanoi City,” Hanoi Department of Science and Technology, Hanoi, 2005.
[16]	Hanoi DONRE, “Feasible Project on Establishing Large-Scale Wastewater Treatment Plants to Improve Environment in Hanoi,” Hanoi Department of Natural Resources and Environment, Hanoi, 2009.
[17]	USEPA, “Method 3051A: Microwave Assisted Acid Dissolution of Sediments, Sludges, Soils, and Oils,” Revision 1, United States Environmental Protection Agency, Washington DC, 2007.
[18]	T. E. Myers, “Cost Estimating for Contaminated Sediment Treatment—A Summary of the State of the Practice, DOER Technical Notes Collection (ERDC TN-DOER-R8),” US Army Engineer Research and Development Center, Vicksburg, 2005. http://el.erdc.usace.army.mil/dots/doer/
[19]	D. M. Dolan and A. H. Shaarawi, “Inferences about Point Source Loadings from Upstream/Downstream River Monitoring Data,” Environmental Monitoring and Assessment, Vol. 12, No. 2-3, 1996, pp. 343-357. doi:10.1007/BF00394239
[20]	R. Jha, C. S. P Ojha and K. K. S. Bhatia, “Non-Point Source Pollution Estimation Using a Modified Approach,” Hydrological Process, Vol. 21, No. 8, 2007, pp. 1098-1105. doi:10.1002/hyp.6291
[21]	S. M. Liou, S. L. Lo and S. H. Wang, “A Generalized Water Quality Index for Taiwan,” Environmental Monitoring and Assessment, Vol. 96, No. 1-3, 2004, pp. 35-52. doi:10.1023/B:EMAS.0000031715.83752.a1
[22]	A. Parparov, K. D. Hambright, L. Hakanson and A. Ostapenia, “Water Quality Quantification: Bbasics and Implementation,” Hydrobiologia, Vol. 560, No. 1, 2006, pp. 227-237. doi:10.1007/s10750-005-1642-y
[23]	A. A. Bordalo, R. Teixeira and W. J. Wiebe, “A Water Quality Index Applied to an International Shared River Basin: The Case of the Douro River,” Environmental Management, Vol. 38, No. 6, 2006, pp. 910-920. doi:10.1007/s00267-004-0037-6
[24]	T. Banerjee and R. K. Srivastava, “Application of Water quality Index for Assessment of Surface Water Quality Surrounding Integrated Industrial Estate-Pantnagar,” Water Science and Technology, Vol. 60, No. 8, 2009, pp. 2041-2053. doi:10.2166/wst.2009.537
[25]	T. L. H. Nguyen, M. Ohtsubo, L. Li, T. Higashi and M. Kanayama, “Heavy Metal Characterization and Leachability of Organic Matter-rich River Sediments in Hanoi, Vietnam,” International Journal of Soil, Sediment and Water, Vol. 3, No. 1, 2010, pp. 1940-3259.
[26]	P. M. Steve, “Effect of Heavy Metals from Sewage Sludge on Soil Microbes in Agricultural Ecosystems,” In: S. M. Ross, Ed., Toxic Metals in Soil-Plant System, John Wiley and Sons, Chichester, 1994, pp. 247-275.
[27]	T. Kikuchi, T. Furuichi, H. T. Hai and S. Tanaka, “Assessment of Heavy Metal Pollution in River Water of Hanoi, Vietnam Using Multivariate Analyses,” Bulletin of Environmental Contamination and Toxicology, Vol. 83, No. 3, 2009, pp. 575-582. doi:10.1007/s00128-009-9815-4
[28]	HSDC, “Report on Improving Environmental of To Lich River (Stage I),” Hanoi Sewerage and Drainage Limited Company, Hanoi, 1997.
[29]	WHO, “Guidelines for the Safe Use of Wastewater, Excreta and Greywater,” Volume II: Wastewater Use in Agriculture, 2006.
[30]	H. J. M. Bowen, “Environmental Chemistry of the Elements,” Academic Press, London, 1979.
[31]	R. B. Ambrose, T. Wool, J. L. Martin, J. P. Collolly and R. W. Schanz, “WASP5X: A Hydrodynamic and Water Quality Model-Model Theory, User’s Manual and Programmer’s Guide,” US Environmental Protection Agency, Athens, 1991.
[32]	A. D. Trinh, “Study of Water Quality of a Urban River hydro System in the Periphery of Hanoi (Vietnam); Experiment and Modeling,” PhD. Dissertation, University of Joseph Fourier, Grenoble, 2003.
[33]	F. Rijsberman, “Sanitation and Access to Clean Water,” In: B. Lomborg, Ed., Global Crises, Global Solutions, Cambridge University Press, London, 2004, pp. 363-420. doi:10.1017/CBO9780511492624.010
[34]	V. Bert, P. Seuntjens, W. Dejonghe, S. Lacherez, H. T. T. Thuy and B. Vandecasteele, “Phytoremediation as a Management Option for Contaminated Sediments in Tidal Marshes, Flood Control Areas and Dredged Sediment Landfill Sites,” Environmental Science Pollution Research, Vol. 16, No. 7, 2009, pp. 745-764. doi:10.1007/s11356-009-0205-6
[35]	J. F. Peng, Y. H. Song, P. Yuan, X. Y. Cui and G. L. Qiu, “The Remediation of Heavy Metals Contaminated Sediment,” Journal of Hazardous Materials, Vol. 161, No. 2-3, 2009, pp. 633-640. doi:10.1016/j.jhazmat.2008.04061
[36]	U. Foerstner and S. Apitz, “Sediment Remediation: US Focus on Capping and Monitored Natural Recovery,” Journal of Soils and Sediments, Vol. 7, No. 6, 2007, pp. 351-358. doi:10.1065/jss2007.10.256