Next Article in Journal
Effects of Pithecellobium Jiringa Ethanol Extract against Ethanol-Induced Gastric Mucosal Injuries in Sprague-Dawley Rats
Previous Article in Journal
Separation and Identification of Highly Fluorescent Compounds Derived from trans-Resveratrol in the Leaves of Vitis vinifera Infected by Plasmopara viticola
Molecules 2012, 17(3), 2784-2795; doi:10.3390/molecules17032784
Article

Treatment of Direct Blending Dye Wastewater and Recycling of Dye Sludge

,
*  and
Received: 30 November 2011 / Revised: 13 February 2012 / Accepted: 29 February 2012 / Published: 6 March 2012
Download PDF [615 KB, 18 June 2014; original version 18 June 2014]

Abstract

A new sorbent material, barium sulfate-Direct Blending Yellow D-3RNL hybrid (BSD), was synthesized and characterized by various methods. Both the anionic dyes, Reactive Brilliant Red X-3B and Weak Acid Green GS were hardly adsorbed by the BSD material, while the sorption of Ethyl Violet (EV) and Victoria Blue B were extremely obvious. The sorption of cationic dyes obeyed the Langmuir isotherm model, which depended on the electric charge attraction. The saturation amount of EV adsorbed onto the BSD material approached to 39.36 mg/g. The sorption of EV changed little with pH from 3 to 12 while it increased with increasing levels of electrolyte. A dye wastewater sampled from Jinjiang Chemicals was treated, and the color removal rate was more than the COD removal rate. In addition, the cationic dye-BSD sludge was utilized as a colorant fill-in coating. The light stability and thermal stability of the colorant was measured and exhibited good features. This work provided a simple and eco-friendly method for dye wastewater treatment with recycling of waste.
Keywords: barium sulfate; direct blending dye; hybrid material; dye wastewater treatment; reuse of sludge barium sulfate; direct blending dye; hybrid material; dye wastewater treatment; reuse of sludge
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Share & Cite This Article

Further Mendeley | CiteULike
Export to BibTeX |
EndNote
MDPI and ACS Style

Xu, X.-H.; Li, M.-L.; Yuan, Y. Treatment of Direct Blending Dye Wastewater and Recycling of Dye Sludge. Molecules 2012, 17, 2784-2795.

View more citation formats

Related Articles

Article Metrics

Comments

Citing Articles

[Return to top]
Molecules EISSN 1420-3049 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert