4.7 Article

Decolouring mechanism of Zhejiang diatomite. Application to printing and dyeing wastewater

Journal

ENVIRONMENTAL CHEMISTRY LETTERS
Volume 3, Issue 1, Pages 33-37

Publisher

SPRINGER HEIDELBERG
DOI: 10.1007/s10311-005-0109-8

Keywords

diatomite; methylene blue; adsorption isotherm; printing and dyeing wastewater

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We report the adsorption isotherm of methylene blue on the surface of Zhejiang and Jilin diatomite. The relationship between the adsorption isotherm and diatomite pore structure is discussed. The degree of decolouring was found to be strongly related to pH and isoelectrical value. Furnace ash residue and diatomite were found to be very effectively treating printing and dyeing wastewater.

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