Journal of Ecology and Rural Environment ›› 2020, Vol. 36 ›› Issue (12): 1598-1604.doi: 10.19741/j.issn.1673-4831.2019.0912

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Study on the Pollution Characteristics of Typical Textile Dyeing Sludge (TDS) in China

ZHAO Ze-hua, WANG Yi, HUA Jing, ZHANG Da-peng, ZHANG Hou-hu, JIAO Shao-jun   

  1. Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, China
  • Received:2020-02-12 Published:2020-12-23

Abstract: With the development of textile printing and dyeing industry in China, dyeing sludge has caused increasingly serious environmental problems due to its multiple characteristics of large output, high pollutant content, complex composition, etc. 14 dyeing enterprises and 4 dyeing wastewater treatment plants were selected as research objects in the country. And then, product types, main dyes, wastewater treatment technology and others were investigated. Referring to the identification methods of hazardous waste, pollution and distribution characteristics of organic pollutants were analyzed deeply in dyeing sludge, as well as the heavy metals. The results show that organic pollutants such as aniline, phenol and petroleum solvents were detected in dyeing sludge; the detection rates of heavy metals such as Zn, Ba, As, Cr and Ni were also high; and the content of Sb was generally higher than that of other types of enterprises in polyester printing dyeing sludge. Besides, the use of irregular water treatment agents did have a significant impact on the content of heavy metals in dyeing sludge.

Key words: dyeing sludge, pollution characteristics, organic pollutants, heavy metal

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