Efficient treatment of printing and dyeing reverse osmosis concentrate by a Ti‐NTA/SnO2‐Sb2O3 electrocatalytic membrane

BACKGROUND Printing and dyeing reverse osmosis concentrates (ROC) contain large amounts of salts and organic matter, which is a major environmental issue. The unique composition of such wastewater makes the use of traditional physicochemical techniques challenging. RESULTS In this paper, titanium di...

Full description

Saved in:
Bibliographic Details
Published in:Journal of chemical technology and biotechnology (1986) 2025-01, Vol.100 (1), p.255-265
Main Authors: Li, Chengjie, Mo, Yinghui, Wang, Liang, Guo, Heng, Ji, Xiaoxue
Format: Article
Language:English
Subjects:
Antimony trioxide
Biodegradation
Degradation
Dyes
electrocatalytic membrane
Electrodes
Environmental degradation
Gas chromatography
Heavy metals
high salt and organics
hydroxyl radical
Mass spectrometry
Mass spectroscopy
Membranes
Organic matter
Parameter identification
Printing
Reverse osmosis
reverse osmosis concentrate
Sol-gel processes
Tin dioxide
Titanium
Titanium dioxide
Ti‐NTA/SnO2‐Sb2O3
Ultraviolet spectra
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:BACKGROUND Printing and dyeing reverse osmosis concentrates (ROC) contain large amounts of salts and organic matter, which is a major environmental issue. The unique composition of such wastewater makes the use of traditional physicochemical techniques challenging. RESULTS In this paper, titanium dioxide nanotube arrays/SnO2‐Sb2O3 (Ti‐NTA/SnO2‐Sb2O3) electrodes were prepared by anodizing–cathodizing and sol–gel method for the electrocatalytic degradation of printing and dyeing ROC. Organic matter removal under different situations was examined, and the best treatment parameters were identified. CONCLUSION Following treatment, organic matter concentration dropped from 1600 to 50 mg L−1, or even less. The outstanding removal performance of the Ti‐NTA/SnO2‐Sb2O3 electrode was validated by full‐scan ultraviolet spectra, gas chromatography–mass spectrometry and three‐dimensional fluorescence. Evaluation of the dissolved heavy metals and halogenated degradation process byproducts revealed that the electrocatalytic membranes were environmentally safe. These findings highlight the enormous potential of electrocatalytic membranes for the treatment of high‐salt ROC when equipped with a Ti‐NTA/SnO2‐Sb2O3 electrode. © 2024 Society of Chemical Industry (SCI).
ISSN:0268-2575
1097-4660
DOI:10.1002/jctb.7769