Download A Pilot Constructed Treatment Wetland for Pulp and Paper by Margaret Akinyi Abira PDF

By Margaret Akinyi Abira

This examine, 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 meals. BOD and phenols relief premiums are suggested for the 1st time. layout parameters and directions for the set-up and upkeep of a full-scale wetland are instructed. The research concludes that integrating a full-scale wetland, as a tertiary level with the prevailing remedy ponds might considerably enhance the standard of water in River Nzoia downstream of the effluent discharge.

This is a important source publication for scientists, managers and scholars within the box of wetland ecology, water and environmental management.

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Read Online or Download A Pilot Constructed Treatment Wetland for Pulp and Paper Mill Wastewater: Performance, Processes and Implications for the Nzoia River, Kenya UNESCO-IHE PhD PDF

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Additional 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

Example text

The system operation in this mode lasted 75 days and involved the unplanted cells, Phragmites and C. papyrus cells. 1 Wetland volumes in batch mode operation. The instantaneous hydraulic loading rate was maintained between 2 - 4 cm/day. 378 *Series A cells had Cyperus immensus in phase 1. **Batch operation discontinued after 25 days and proceeded with PANPAPER’s aerated pond wastewater on continuous flow. Continuous flow Phase 1: March 2004 - February 2005. 3 cm/day with wastewater from the final lagoon of PANPAPER Mills.

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. Water Science and Technology 40 (11-12): 77 - 84. N. L. 1991. Treatability of bleached Kraft pulp and paper mill wastewaters in a New Zealand aerated lagoon treatment system.

Control C. papyrus T. domingensis Precipitation P. mauritianus 16 14 12 10 8 6 4 2 0 Jul Aug Sep Oct Nov 2003 Dec Jan Feb Mar 2004 Month Fig. 3 Monthly evapotranspiration (ET) and Rainfall (P) in mm/day during batch operation phase 2 (3 days retention time). 3 Water balance in continuous flow phase2 (April – August 2005). 06 Inputs Wastewater inflow Rainfall se Mean evapotranspiration rates during continuous flow were 8 – 16 mm/day which are 2 – 3 times the pan evaporation rates. 5 mm (Data from Nzoia Meteorological station).

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