By Margaret Akinyi Abira
This research, carried out in Kenya, supplies 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 foodstuff. BOD and phenols aid charges are stated for the 1st time. layout parameters and directions for the set-up and upkeep of a full-scale wetland are suggested. The examine concludes that integrating a full-scale wetland, as a tertiary level with the prevailing remedy ponds may considerably enhance the standard of water in River Nzoia downstream of the effluent discharge.
This is a worthwhile source booklet 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
Research scope and objectives The pilot study constructed wetland was intended to act as a polishing unit for the wastewater from the PANPAPER Mills stabilisation ponds and to offer continuous buffer, especially during 42 Chapter 3 low flow in the River Nzoia. The objectives of this study therefore were: (1) To design a wetland system that would improve the PANPAPER Mill wastewater to meet set national guidelines. (2) To determine the water balance and flow characteristics of the constructed wetland system.
1994) but site-specific data are required to guide design and operation protocols (Kadlec and Knight, 1996). However, there are inadequate data on the nature and characteristics of the wastewater from PANPAPER Mills. Achoka (1998) examined heavy metal and alkali metal concentrations such as sodium and potassium in the final effluent. Data available at the factory and preliminary tests conducted in 1999-2000 by Abira et al. (2003) did not include regular measurements of dissolved oxygen (DO), biochemical oxygen demand (BOD), nutrients and toxic substances such as phenols.
Pulp and Paper industry. E. (ed). Pollution prevention handbook Lewis Publishers, Boca Raton, pp 513 - 528. Water Pollution Control Directorate, 1976. Proceedings of Seminars on water pollution abatement technology in the pulp and paper industry. Economic and technical review report EPS 3-WP-76-4 Environment Canada and Canadian Pulp and Paper Association, 220pp. G. E. 1999. Limitations for biological removal of resin acids from pulp mill effluent. Water Science and Technology 40 (11-12): 281 - 288.