STUDYING THE USE OF DUCKWEEK (LEMNA MINOR L., 1753) AS A MONITORING ORGANISM TO TEXTILE EFFLUENT POLLUTION

Abstract: 139 | PDF: 145

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Author

  • Nguyen Van Khanh*, Nguyen Bao Ngoc, Nguyen Thi Phuong

Keywords:

duckweed
chronic toxicity
ecological toxicity
textile effluent
sterilization

Abstract

This report illustrates the results of chronic toxicity experiment of 29/3 Da Nang Textile company’s textile effluent on duckweed (Lemna minor L., 1753) according to OECD guideline (Organization for Economic Co-operation and Development). The study determines environmental condition in cultivating duckweed is NaOCl 0,05% and time of sterilization process is 20 sec. The study has already defined EC50 = 52.23% according to frond number variable and 46.21% according to the total frond area corresponding to EC50 values for Cr (VI) according to frond number and total frond area is 2.2 mg/L and 0.9 mg/ L, respectively, which are higher than the QCVN 13-MT: 2015 / BTNMT. This research shows that in the treated textile wastewater, there still remain huge potential risks for ecological toxicology. This research will shed the light on the ability of using duckweed species to monitor eco-toxicity for the quality of wastewater in Vietnam.

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Published

Jan 31, 2017
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How to Cite
Nguyen Van Khanh*, Nguyen Bao Ngoc, Nguyen Thi Phuong. “STUDYING THE USE OF DUCKWEEK (LEMNA MINOR L., 1753) AS A MONITORING ORGANISM TO TEXTILE EFFLUENT POLLUTION”. The University of Danang - Journal of Science and Technology, vol. 1, no. 110, Jan. 2017, pp. 121-5, https://jst-ud.vn/jst-ud/article/view/1536.

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