| Title: | The use of constructed wetland for dye-rich textile wastewater treatment |
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| Authors: | ID Griessler Bulc, Tjaša (Author)
ID Ojstršek, Alenka (Author) |
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| Files: |  http://dx.doi.org/10.1016/j.jhazmat.2007.11.068
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| Language: | English |
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| Work type: | Unknown |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: | FS - Faculty of Mechanical Engineering
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| Abstract: | The objective of the present paper was to examine the treatment efficiency of constructed wetlands (CW) for the dye-rich textile wastewater with special focus on colour reduction. Preliminary, a series of dynamic experiments were performed in the CW model packed with gravel, sand, and zeolitic tuff on three synthetically-prepared wastewaters using chemically differ dyestuffs, auxiliaries and chemicals, in order to investigate the potential of low-cost materials as media for textile dye-bath wastewater treatment. The obtained results evidence that applied CW model reduces colour by up to 70%, and COD and TOC by up to 45%. Based on these results, the pilot CW with vertical (VF) and horizontal flow (HF) was constructed near textile factory mainly for cotton and cotton/PES processing with intention to treat real textile wastewater in-situ. It was designed for 1 m3/d, covering 80 m2, packed with sand and gravel, and planted with Phragmites australis. The average treatment efficiency of the CW for the selected pollution parameters were: COD 84%, BOD5 66%, TOC 89%, Ntotal 52%, Norganic 87%, NH4-N -331%, sulphate 88%, anion surfactant 80%, total suspended solids (TSS) 93%, and colour 90%, respectively. The results unequivocally proved that the CW could offer an optimal solution to meet the environmental legislation as well as requirements for effective and inexpensive textile wastewater treatment. |
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| Keywords: | coloured textile wastewater, constructed wetland, Phragmites australis |
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| Year of publishing: | 2008 |
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| PID: | 20.500.12556/DKUM-27410  |
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| UDC: | 628.3:677.11 |
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| ISSN on article: | 0304-3894 |
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| COBISS.SI-ID: | 12026390 |
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| NUK URN: | URN:SI:UM:DK:MAVY9FYY |
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| Publication date in DKUM: | 01.06.2012 |
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| Views: | 2228 |
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| Downloads: | 91 |
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| Metadata: |    |
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| Categories: | Misc.
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