Potential of Neptunia Oleracea Lour. on Phytoremediation Coal Acid Mine Drainage

Abstract

Environmental problems in coal mining activities include acid mine drainage (AMD). Efforts to overcome the impact of AMD waste can be done by means of phytoremediation. Neptunia oleracea Lour. is one type of aquatic plant that has the potential to adapt and accumulate heavy metals. So it is necessary to do research with the aim of knowing the potential of N. oleracea in AMD phytoremediation. The phytoremediation potential of N. oleracea used a completely randomized design (CRD): without AMD as control (0%), with AMD concentrations of 25%, 50%, 75% and 100%. The results showed that N. oleracea has the potential to increase pH by 0.0322/day and reduce Fe content by 0.4760 mg/l/day, Mn 0.5776 mg/l/day, sulfate 0.4809 mg/l/day and reduce TSS by 0.0818 mg/l/day, at 100% AMD concentration. It can be concluded that N. oleracea has potential as an AMD phytoremediation agent to be developed in system constructed wetlands (CWs).

Respons Pertumbuhan Neptunia oleracea Lour. Pada Fitoremediasi Air Asam Tambang Batubara

“…Akar tumbuhan hiperakumulator memiliki daya selektifitas yang tinggi terhadap unsur logam tertentu [5]. N. oleracea berpotensi sebagai penyerap logam berat memiliki toleransi terhadap lingkungan dengan kondisi pH rendah dan lingkungan yang tercekam [6]. Sistem translokasi unsur dari akar ke tajuk pada tumbuhan hiperakumulator lebih efisien dibandingkan tanaman normal.…”

“…Penelitian fitoremediasi amoniak didapatkan pertumbuhan N. oleracea yang terbaik pada kadar amoniak 20 ppm yaitu pertambahan berat segar sebesar 41,55 g selama 30 hari fitoremediasi dan kecepatan pertumbuhan 1,39 g per hari [9]. N. oleraceae sebagai tumbuhan air berpotensi sebagai agen fitoremediasi limbah cair AAT [6]. Sehingga perlu dilakukan peneletian dengan tujuan mengevaluasi respons pertumbuhan N. oleracea pada fitoremediasi AAT batubara.…”