Treatment of Direct Blending Dye Wastewater and Recycling of Dye Sludge

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 Vic...

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Main Authors: Ming-Li Li, Xin-Hui Xu, Yuan Yuan
Format: Article
Language:English
Published: MDPI AG 2012-03-01
Series:Molecules
Subjects:
Online Access:http://www.mdpi.com/1420-3049/17/3/2784/
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author Ming-Li Li
Xin-Hui Xu
Yuan Yuan
author_facet Ming-Li Li
Xin-Hui Xu
Yuan Yuan
author_sort Ming-Li Li
collection DOAJ
description 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.
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spelling doaj.art-ad736346df494cc49e3667e0ccb272f42022-12-21T17:31:15ZengMDPI AGMolecules1420-30492012-03-011732784279510.3390/molecules17032784Treatment of Direct Blending Dye Wastewater and Recycling of Dye SludgeMing-Li LiXin-Hui XuYuan YuanA 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.http://www.mdpi.com/1420-3049/17/3/2784/barium sulfatedirect blending dyehybrid materialdye wastewater treatmentreuse of sludge
spellingShingle Ming-Li Li
Xin-Hui Xu
Yuan Yuan
Treatment of Direct Blending Dye Wastewater and Recycling of Dye Sludge
Molecules
barium sulfate
direct blending dye
hybrid material
dye wastewater treatment
reuse of sludge
title Treatment of Direct Blending Dye Wastewater and Recycling of Dye Sludge
title_full Treatment of Direct Blending Dye Wastewater and Recycling of Dye Sludge
title_fullStr Treatment of Direct Blending Dye Wastewater and Recycling of Dye Sludge
title_full_unstemmed Treatment of Direct Blending Dye Wastewater and Recycling of Dye Sludge
title_short Treatment of Direct Blending Dye Wastewater and Recycling of Dye Sludge
title_sort treatment of direct blending dye wastewater and recycling of dye sludge
topic barium sulfate
direct blending dye
hybrid material
dye wastewater treatment
reuse of sludge
url http://www.mdpi.com/1420-3049/17/3/2784/
work_keys_str_mv AT minglili treatmentofdirectblendingdyewastewaterandrecyclingofdyesludge
AT xinhuixu treatmentofdirectblendingdyewastewaterandrecyclingofdyesludge
AT yuanyuan treatmentofdirectblendingdyewastewaterandrecyclingofdyesludge