By Margaret Akinyi Abira
This research, performed in Kenya, provides the 1st perception into the functionality of a built remedy wetland receiving pulp and paper mill wastewater within the tropics.
The wetland successfully got rid of natural topic, suspended solids, phenols and food. BOD and phenols relief premiums are pronounced for the 1st time. layout parameters and instructions for the set-up and upkeep of a full-scale wetland are suggested. The learn concludes that integrating a full-scale wetland, as a tertiary degree with the prevailing therapy ponds could considerably increase the standard of water in River Nzoia downstream of the effluent discharge.
This is a worthwhile source ebook for scientists, managers and scholars within the box of wetland ecology, water and environmental management.
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Extra info for A Pilot Constructed Treatment Wetland for Pulp and Paper Mill Wastewater: Performance, Processes and Implications for the Nzoia River, Kenya UNESCO-IHE PhD
D. Stensel, McGraw-Hill, New York, USA, 1819p. M. and Sherwood, R. 1994. Wetland Treatment of pulp and paper mill wastewater. Water Science and Technology 29(4): 241 - 247. L. 1978. Industrial water pollution origins, characteristics and treatment. Addison-Wesley Publishing Company, Reading, Massachusetts, 738p. B. and Carrington, E. G. 1972. Recent developments in the study of bacteria in the activated-sludge process. M. and Grigsby, J. 1999. Nutrients within integrated bleached Kraft mills: sources and behaviour in aerated stabilization basins.
S. 2000. Coliform bacteria and nitrogen fixation in pulp and paper mill effluent treatment systems. Applied and Environmental Microbiology 66 (12): 5155 – 5160. 36 Chapter 2 GOK, 1999. Kenya population census, Ministry of Planning and National Development, Central Bureau of Statistics, Government of Kenya. F. 2004. Biology of wastewater treatment, second edition, Imperial College press 1421 pp. London. K. C. 1974. Measuring stress in fish exposed to pulp mill effluents. TAPPI 57: 133 - 135. JICA/GOK, 1992.
Phenol removal occurred mainly in the aerated ponds (biological stage). A very small proportion was removed at the clarifier indicating that adsorption is a minor removal mechanism. Eckenfelder (2000) reports that phenol removal is mainly microbial-mediated (up to 70 %) with adsorption and other processes accounting for the remainder. , 1991) with higher removal rates (up to 84 %) for specific chlorophenols. , 1999). The addition of fertilizer at the clarifier outflow at PANPAPER Mills is reflected in nitrogen and phosphorus increases in the effluent stream.
A Pilot Constructed Treatment Wetland for Pulp and Paper Mill Wastewater: Performance, Processes and Implications for the Nzoia River, Kenya UNESCO-IHE PhD by Margaret Akinyi Abira