Penurunan Logam Berat Timbal (Pb) pada Limbah Cair Laboratorium Kualitas Lingkungan UII dengan Menggunakan Tumbuhan Eceng Gondok (Eichhornia Crassipes)
Eko Siswoyo, Kasam, Dian Widyanti
Program Studi Teknik Lingkungan, FTSP, Universitas Islam Indonesia
Jalan Kaliurang Km 14,5 Yogyakarta
Laboratory wastewater is one of hazard waste that content some chemical materials, such as Plumbum (Pb). A treatment method is needed to prevent the negative effect of Pb to environment. This research used constructed wetland with water hyacinth in batch flow reactor. Variation of wastewater concentration are 0%, 25%, 50%, 75% and 100% with sampling time until 12 days. Reactor with out water hyacinth is needed to know the performance of it. It is known that the highest removal of Pb is after 12 days running, where the level of removal efficiency is depend on the variation of wastewater concentration. The efficiency of removal on 25% and 50% with 0,0318 mg/l and 0,0675 mg/l of Pb as input is less than 0,001 mg/l. Reactors with 75% and 100% of wastewater have 88,86% and 17,31% of removal efficiency. Water hyacinth contributed in removing of Pb in wastewater.
Keywords : Constructed wetland, laboratory wastewater, plumbum, water hyacinth