Water quality remediation in a heavily polluted tidal river in Guangzhou, South China
Keywords:
comprehensive remediation, bioremediation, aeration, water bodyAbstract
A field-scale experiment was performed to remediate a heavily polluted river located in the urban area of Guangzhou, China using biological and chemical techniques combined with engineering processes. Before comprehensive remediation was undertaken, several small-scale experiments to test river-water remediation techniques were successfully performed. After comprehensive remediation, the average reduction rates of chemical oxygen demand and biochemical oxygen demand and removal rates of other pollutants were all above 70 percent. Furthermore, the unpleasant odor emanating from the polluted river was also greatly reduced. The field-scale experiment thus indicated the feasibility and validity of the method applied to remediate this heavily polluted river; this method can therefore be applied to remediate other heavily polluted rivers in the Guangzhou urban area and elsewhere.
References
Aiying, L., Min, P., Digang, Z. and Yongme, L. 2005. Isolation of Bacillus subtilis and its role in purifying mariculture water. Guangxi Agricultural Sciences., 36: 248–250.
Chen, F., Ding, A., Fu, J. and Sheng, G. 2000. Factors of purging polluted water by PSB. Chin. Sci. Bull., Supplement, 45: 2797–2801.
Fu, J., Mai, B., Sheng, G., Zhang, G., Wang, X., Peng, P., Xiao, X., Ran, R., Chen, F., Peng, X., Wang, Z. and Tang, U. W. 2003. Persistent organic pollutants in environment of the Pearl River Delta, China: an overview. Chemosphere, 52: 1411–1422.
Muzeeinoglu, A. 2003. A study of volatile organic sulfur emissions causing urban odors. Chemosphere, 51: 245–252.
Neal, C., Harrow, M. and Willams, R. J. 1998. Dissolved carbon dioxide and oxygen in the River Thames: Spring-summer 1997. Sci. Total Environ., 210/211: 205–217.
Pedersen, T. 2000. Oxygen absorption into moving water and tenside solutions. Water Res., : 2569–2581. 34
Sheng, Y., Chen, F., Yu, Y., Wang, X., Sheng, G., Fu, J. and Zeng, E. Y. 2008. Emission of volatile organic sulfur compounds from a heavily polluted river in Guangzhou, South China. Env. Mon. and Ass., 143: 121–130.
Sheng, Y., Fu, G., Chen, F. and Chen, J. 2011. Geochemical characteristics of inorganic sulfur in Shijing River, South China. J. Environ. Monit., 13(4): 807–812.
Sun, L., Liu, Y. and Jin, H. 2009. Nitrogen removal from polluted river by enhanced floating bed grown canna. Ecol. Eng., 35: 135–140.
Tadesse, F., Green, B. and Puhakka, J. A. 2004. Seasonal and diurnal variations of temperature, pH and dissolved oxygen in advanced integrated wastewater pond system treating tannery effluent. Water Res., 38: 645–654.
Tao, Y. X. and Hills, P. 1999. Assessment of alternative wastewater treatment approaches in Guangzhou, China. Wat. Sci. Tech., 39: 227–234.
Tare, V., Veer, A., Yadav, S. and Bose, P. 2003. Analysis of photosynthetic activity in the most polluted stretch of river Ganga. Water Res., 37: 67–77.
Zhang, Z., Huang, J., Yu, G. and Hong, H. 2004. Occurrence of PAHs, PCBs and organochlorine pesticides in the Tonghui River of Beijing. China; Environ. Pollut., 130: 249–261.
Published
Issue
Section
License
Manuscripts must be original. They must not be published or be under consideration for publication elsewhere, in whole or in part. It is required that the lead author of accepted papers complete and sign the MSU Press AEHM Author Publishing Agreement and provide it to the publisher upon acceptance.
