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Removal of Congo Red was carried out using biogas waste slurry as adsorbent at different concentrations of dye, adsorbent dosage, agitation time and pH. The process follows the first-order rate expression. The equilibrium data fit well in... more
Removal of Congo Red was carried out using biogas waste slurry as adsorbent at different concentrations of dye, adsorbent dosage, agitation time and pH. The process follows the first-order rate expression. The equilibrium data fit well in the Freundlich model of adsorption. Maximum removal of dye, 95%, was observed in the pH range 2.3–9.4. Desorption of Congo Red showed that it is solubilised in 50% acetic acid to the extent of 6% and the remainder appears to be chemically complexed irreversibly to the adsorbent. Low desorption of dye from the adsorbent surface in water indicates that the process may not be, essentially, a reversible one.
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... C. NAMASIVAYAM* and RT YAMUNA Environmental Chemistry Division, Department of Environmental Sciences, Bharathiar University, Coimbatore - 641046, Tamil Nadu, India. (Received July 27, 1991; revised November 8, 1991) ... 102 C.... more
... C. NAMASIVAYAM* and RT YAMUNA Environmental Chemistry Division, Department of Environmental Sciences, Bharathiar University, Coimbatore - 641046, Tamil Nadu, India. (Received July 27, 1991; revised November 8, 1991) ... 102 C. NAMASIVAYAM AND RT YAMUNA ...
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... RED MUD C. Namasivayam,* RT Yamuna, and DJSE Arasi Environmental Chemistry Laboratory, Department of Environmental Sciences, Bharathiar University, Coimbatore 641 046, Tamil Nadu, India ABSTRACT The ability ...
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The adsorption of Acid Brilliant Blue on biogas residual slurry has been investigated. The parameters studied include dye concentration, agitation time, adsorbent dosage and pH. The equilibrium data fit well with both the Langmuir and... more
The adsorption of Acid Brilliant Blue on biogas residual slurry has been investigated. The parameters studied include dye concentration, agitation time, adsorbent dosage and pH. The equilibrium data fit well with both the Langmuir and Freundlich models of adsorption ...