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Removal of heavy metals from textile wastewater using Zeolite.

Halimoon, Normala and Goh, Rachel Soo Yin (2010) Removal of heavy metals from textile wastewater using Zeolite. Environment Asia, 3 (special issue). pp. 124-130. ISSN 1906-1714

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Heavy metals such as lead (Pb), chromium (Cr), cadmium (Cd) and copper (Cu) are widely used for production of colour pigments of textile dyes. Textile dyes pollutants are being released to the environment at various stages of operation therefore it is necessary that the pollutants are treated before discharge using zeolite with and without alum. A study was carried out to compare the effectiveness of treatment using zeolite with and without alum for the removal of heavy metals (Pb, Cu, Cd, Cr) in textile effluent. The concentrations of these heavy metals in the textile wastewater samples were reduced to more than 50 percent after treating with zeolite. The sequence in increasing order of removal efficiency of these heavy metals using zeolite was Cd < Pb < Cr < Cu. When the textile wastewater sample was treated using zeolite and 10 mg/L of alum, 80% of the heavy metals (Cd and Cu) were removed. The most effective treatment prior to removal of heavy metals from textile wastewater sample is by using zeolite with the addition of 10 mg/L of alum as flocculants.

Item Type:Article
Keyword:Textile wastewater; Zeolite; Heavy metals; Alum.
Subject:Heavy metal.
Subject:Heavy metals - Environmental aspects.
Faculty or Institute:Faculty of Environmental Studies
Publisher:Thai Society of Higher Eduction Institutes on Environment
ID Code:16516
Deposited By: Khairil Ridzuan Khahirullah
Deposited On:28 Jun 2012 19:36
Last Modified:15 Sep 2015 09:55

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