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Identification of industrial sewage sludge based on heavy metal profiles: a case study of printing and dyeing industry.
- Source :
-
Environmental science and pollution research international [Environ Sci Pollut Res Int] 2022 Feb; Vol. 29 (8), pp. 12377-12386. Date of Electronic Publication: 2021 Sep 26. - Publication Year :
- 2022
-
Abstract
- The illegal disposal of industrial sewage sludge has caused serious environmental pollution. To develop identification technology of industrial sewage sludge based on the characteristic fingerprints is a promising method that is helpful to clarify the responsibility of illegal enterprises. In this study, heavy metal profiles of sewage sludge from industries (including printing and dyeing industry and other industries) and municipal sewage treatment plant located in eastern China were determined, and their performance of classification was evaluated by principal component analysis (PCA) and linear discrimination analysis (LDA). Results showed that heavy metal composition can be an effective tool for distinguishing sewage sludge between printing and dyeing industry and other industries, with an accuracy rate of 82.9%. Meanwhile, heavy metal speciation may be a promising method for identification of printing and dyeing sludge from municipal sewage sludge, the accuracy rate of which reached 100%. Moreover, antimony (Sb) and zinc (Zn) are two indicators, which can be used to identify sewage sludge between printing and dyeing sub-industries, and the accuracy rate was 90%. We concluded that heavy metal profiles may be a precise and promising tool for identification of printing and dyeing sludge. This study developed a potential method for tracing the source of industrial sewage sludge and establishing the identification database of industrial sewage sludge and provided technical support for the government to supervise the illegal dumping and disposal of industrial sewage sludge.<br /> (© 2021. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
- Subjects :
- Coloring Agents
Environmental Monitoring
Metals, Heavy analysis
Sewage analysis
Subjects
Details
- Language :
- English
- ISSN :
- 1614-7499
- Volume :
- 29
- Issue :
- 8
- Database :
- MEDLINE
- Journal :
- Environmental science and pollution research international
- Publication Type :
- Academic Journal
- Accession number :
- 34564814
- Full Text :
- https://doi.org/10.1007/s11356-021-16569-5