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In situ phytoremediation of dyes from textile wastewater using garden ornamental plants, effect on soil quality and plant growth

Title
In situ phytoremediation of dyes from textile wastewater using garden ornamental plants, effect on soil quality and plant growth
Author
Sanjay Prabhu Govindwar
Keywords
Phytoremediation; Textile wastewater; Heavy metals
Issue Date
2018-11
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
CHEMOSPHERE, v. 210, page. 968-976
Abstract
In situ phytoremediation of dyes from textile wastewater was carried out in a high rate transpiration system ridges (91.4 m x 1.0 m) cultivated independently with Tagetes patula, Aster amellus, Portulaca grandiflora and Gaillardia grandiflora which reduced American Dye Manufacturers Institute color value by 59, 50, 46 and 73%, respectively within 30 d compared to dye accumulated in unplanted ridges. Significant increase in microbial count and electric conductivity of soil was observed during phytoremediation. Reduction in the contents of macro (N, P, K and C), micro (B, Cu, Fe and Mn) elements and heavy metals (Cd, As, Pb and Cr) was observed in the soil from planted ridges due to phyto-treatment. Root tissues of these plants showed significant increase in the specific activities of oxido-reductive enzymes such as lignin peroxidase, laccase, veratryl alcohol oxidase, tyrosinase and azo reductase during decolorization of textile dyes from soil. Anatomical studies of plants roots revealed the occurrence of textile dyes in tissues and subsequent degradation. A minor decrease in plant growth was also observed. Overall surveillance suggests that the use of garden ornamental plants on the ridges of constructed wetland for the treatment of dyes from wastewater along with the consortia of soil microbial flora is a wise and aesthetically pleasant strategy. (C) 2018 Elsevier Ltd. All rights reserved.
URI
https://www.sciencedirect.com/science/article/pii/S0045653518313225?via%3Dihubhttp://repository.hanyang.ac.kr/handle/20.500.11754/120783
ISSN
0045-6535; 1879-1298
DOI
10.1016/j.chemosphere.2018.07.064
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > EARTH RESOURCES AND ENVIRONMENTAL ENGINEERING(자원환경공학과) > Articles
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