A field-scale 4-celled, horizontal subsurface constructed wetland (CW) was installed to evaluate removal efficiencies of wastewater constituents in an industrial distillery effluent. Total and dissolved solids, NH4-N, TKN, P and COD were measured. This CW design provides four serial cells with synthetic liners and a river gravel base. The first two unplanted cells provide preliminary treatment. Specific gravel depths and ensuing biofilm growth provides anaerobic treatment in Cell 1 and anaerobic treatment in Cell 2. Cell 3 was planted with Typha latifolia with an inserted layer of brick rubble (for phosphorus removal). Locally grown reed, Phragmites karka was planted in Cell 4. COD was reduced from 8420 mg/l 3000 from Cell 1 to the outlet of Cell 4. Likewise other parameters: total and dissolved solids, ammonium and total nitrogen, and total P, indicated declining trends at the 4-celled CW effluent. This study reveals how high strength distillery wastewater strongly impacts morphology, aeration anatomy in the chiseled plant tissues, reed growth; and composition of the biofilm in the specialized substratum. The reliability of a CW for organic and nutrients reduction, in association with a poorly performing conventional system is discussed. There is an immense potential for appropriately designed constructed wetlands to improve high strength wastewaters in India.
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Research Article|
December 01 2001
Treatment of a molasses based distillery effluent in a constructed wetland in central India
S.K. Billore;
S.K. Billore
*Institute of Environmental Management and Plant Sciences, Vikram University, Ujjain 456010, MP, India
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N. Singh;
N. Singh
*Institute of Environmental Management and Plant Sciences, Vikram University, Ujjain 456010, MP, India
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H.K. Ram;
H.K. Ram
*Institute of Environmental Management and Plant Sciences, Vikram University, Ujjain 456010, MP, India
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J.K. Sharma;
J.K. Sharma
*Institute of Environmental Management and Plant Sciences, Vikram University, Ujjain 456010, MP, India
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V.P. Singh;
V.P. Singh
*Institute of Environmental Management and Plant Sciences, Vikram University, Ujjain 456010, MP, India
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R.M. Nelson;
R.M. Nelson
**Nelson Environmental Consultants, 211 Gregory Road, Wilmington, NC 28405, USA
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P. Dass
P. Dass
*Institute of Environmental Management and Plant Sciences, Vikram University, Ujjain 456010, MP, India
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Water Sci Technol (2001) 44 (11-12): 441–448.
Citation
S.K. Billore, N. Singh, H.K. Ram, J.K. Sharma, V.P. Singh, R.M. Nelson, P. Dass; Treatment of a molasses based distillery effluent in a constructed wetland in central India. Water Sci Technol 1 December 2001; 44 (11-12): 441–448. doi: https://doi.org/10.2166/wst.2001.0864
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