PEMANFAATAN TANAMAN PETUNIA UNGU (Ruellia simplex C.) SEBAGAI PENYERAP LOGAM TIMBAL (Pb) PADA MEDIA TUMBUH TANAH
AbstractHas been done a research concerning the use of Petunia Ungu (Ruellia simplex C.) plants as an absorbent lead metal (Pb) in the soil growing medium. The research almed to determine the levels of lead metal in petunia ungu plants and determine the effect of variations of concentrations also to determine the effect of absorption time in plants during planting petunia ungu 1, 2, 3 and 4 weeks then petunia ungu planted in the soil as the growing that was added a solutions of lead respectively 0, 25, 50, 75 and 100 mg/L. A soil sample preparation was conducted by wet digestion method and petunia ungu plants by dry digestion method. Metal levels of lead in the soil samples and petunia ungu plants was measured by atomic absorption spectrophotometer at wavelengths of 283,3 nm. The result of research showed that petunia ungu plants can absorb lead metal, the average levels of lead metal in petunia ungu plants consist of 0 ppm 1, 2, 3 and weeks 1,2303; 1,3190; 1,5064 and 1,6915 mg/Kg. 25 ppm 2,1779; 3,0426; 3,4145 and 3,3643 mg/Kg. 50 ppm 3,1317; 3,4316; 3,8689 and 4,2841 mg/Kg. 75 ppm 3,1179; 4,6695; 6,5676 and 6,6828 mg/Kg. 100 ppm 2,5205; 3,6302; 5,4442 and 6,9167 mg/Kg. beside that a lead metal content in the soil as a growing medium decreased.
Sastarawijaya, T. 2000. Pencemaran Lingkungan. Jakarta : Rineka Cipta
Santi, D.N. 2001. Pencemaran Udara oleh Timbal (Pb) serta Penanggulangannya, USU Digital Library, (Online),(diakses 8 Maret 2008).
Yayuk, HR. 2009. Pengaruh Pemberian Timbal (Pb) terhadap Kadar Timbal (Pb) pada Tanaman Kangkung Cabut (Ipomea reptans poir) dan Tanah sebagai Media Tumbuhnya. Skripsi, Samarinda : FMIPA Universitas Mulawarman.
Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.