The Use of Water Lettuce (Pistia stratiotesas) as Phytoremediator for Concentration and Deposits of Heavy Metal Lead (Pb) Tilapia (Oreochromis niloticus) Gills

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Abstract

This study discusses the ability of P. stratiotes to reduce the concentration of heavy metal in water so that it can reduce lead absorption in tilapia gills. This study used an experimental method with a complete random design. the main ingredients used were water lettuce (Pistia stratiotes), Pb (NO2)3 and tilapia (Oreochromis niloticus). Analysis of lead concentration was carried out with Atomic Absorption Spectrophotometry. The percentage of absorption capacity of P. stratiotes was up to 99.9% after 15 days of maintenance in media with 1 ppm lead contamination. The decrease in lead concentration in the media with P. stratiotes causes the decrease in lead absorption in the gills, and at the same time also increase the lead concentration found in the roots. The concentration of lead absorbed by the gills was reduced to 34.7%, lower than the treatment without the plants. The results of this study indicated that Pistia stratiotes can reduce lead concentration in water media. Therefore, this plant can be used as a phytoremediator for lead-laden wastewater in wider scoop.

Original languageEnglish
Article number012055
JournalIOP Conference Series: Earth and Environmental Science
Volume236
Issue number1
DOIs
Publication statusPublished - 1 Mar 2019
Event1st International Conference on Fisheries and Marine Science, InCoFiMS 2018 - East Java, Indonesia
Duration: 6 Oct 2018 → …

Keywords

  • Gills
  • Oreochromis niloticus
  • Pb
  • Phytoremediation
  • Pistia stratiotes

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