Abstract
The increased activity of the textile industry located close to Tempe Lake has led to a high concentration of accumulated heavy metals in the water. This contamination with heavy metals poses a potential threat to the surrounding community. Therefore, this study aims to develop a phytoremediation technology to efficiently remove toxic heavy metals (Zn) from the contaminated lake. Also, it was designed to assess the phytoremediation abilities of apu wood, water hyacinth, and spinach on Zn. This method was considered appropriate because it was environmentally friendly and had economic value. The results showed that the average pH value and metal content decreased after the phytoremediation process in all samples. Also, there was an increase in the total nitrogen content, phosphate (P), Dissolved Solids (TDS), and Suspended Solids (TSS) of the contaminated water that was remedied with water hyacinth, spinach, and apu wood. The metal absorbing capacity of the plants was assessed using the bioconcentration factor (BCF), and the results showed that there was a linear relationship between the BCF value and the phytoremediation time. Therefore, water hyacinth, spinach, and apu wood have the potentials as phytoremediation agents in remedying the concentration of Zn in Tempe Lake.
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