超临界流体
环境科学
超临界水氧化
废水
化学
污染
水污染
工业废水处理
分解
废物管理
环境工程
环境化学
生态学
工程类
有机化学
生物
作者
Rahat Javaid,Umair Yaqub Qazi,Amir Ikhlaq,Muhammad Zahid,Amira Alazmi
标识
DOI:10.1016/j.jenvman.2021.112605
摘要
Abstract The total annual output of synthetic dyes exceeds 7 × 105 tons. About 1,000 tons of non-biodegradable synthetic dyes are released every year into the natural streams and water sources from textile wastes. The release of these colored wastewater exerts negative impact on aquatic ecology and human beings because of the poisonous and carcinogenic repercussions of dyes involved in coloration production. Therefore, with a growing interest in the environment, efficient technologies need to be developed to eliminate dyes from local and industrial wastewater. Supercritical water oxidation as a promising wastewater treatment technology has many advantages, such as a rapid reaction and pollution-free products. However, due to corrosion, salt precipitation and operational problems, supercritical water oxidation process did not gain expected industrial development. These technical difficulties can be overcome by application of non-corrosive subcritical water as a reaction medium. This work summarizes the negative impacts of dyes and role of subcritical and supercritical water and their efficiencies in dye oxidation processes.
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