Phytotoxicity of wastewater containing lead (Pb) effects scirpus grossus |
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| Authors: | B Voijant Tangahu S Rozaimah Sheikh Abdullah H Basri M Idris N Anuar M Mukhlisin |
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| Institution: | 1. Department of Civil and Structural Engineering, Faculty of Engineering and Built Environment , Universiti Kebangsaan Malaysia , UKM Bangi , Selangor , Malaysia;2. Department of Environmental Engineering, Faculty of Civil Engineering and Planning , Sepuluh Nopember Institute and Technology , Surabaya , Indonesia;3. Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment , Universiti Kebangsaan Malaysia , UKM Bangi , Selangor , Malaysia;4. Department of Civil and Structural Engineering, Faculty of Engineering and Built Environment , Universiti Kebangsaan Malaysia , UKM Bangi , Selangor , Malaysia;5. Tasik Chini Reasearch Centre, Faculty of Science and Technology , Universiti Kebangsaan Malaysia , UKM Bangi , Selangor , Malaysia;6. Department of Environmental Engineering, Faculty of Civil Engineering and Planning , Sepuluh Nopember Institute and Technology , Surabaya , Indonesia |
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| Abstract: | Phytoremediation is an environment-friendly and cost-effective method to clean the environment of heavy metal contamination. A prolonged phytotoxicity test was conducted in a single exposure. Scirpus grossus plants were grown in sand to which the diluted Pb(NO3)2 was added, with the variation of concentration were 0, 100, 200, 400, 600, and 800 mg/L. It was found that Scirpus grossus plants can tolerate Pb at concentrations of up to 400 mg/L. The withering was observed on day-7 for Pb concentrations of 400 mg/L and above. 100% of the plants withered with a Pb concentration of 600 mg/L on day 65. The Pb concentration in water medium decreased while in plant tissues increased. Adsorption of Pb solution ranged between 2 to 6% for concentrations of 100 to 800 mg/L. The Bioaccumulation Coefficient and Translocation Factor of Scirpus grossus were found greater than 1, indicating that this species is a hyperaccumulator plant. |
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| Keywords: | phytotoxicity phytoremediation hyperaccumulator plant Scirpus grossus |
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