Layanan journal yang disediakan oleh Perpustakaan Universitas Gunadarma
| Judul Artikel | : | Studi penyisihan kromium hexavalen (Cr6+) pada air limbah artifisial secara biologi menggunakan Escherichia coli dalam sistim curah |
|---|---|---|
| Judul Terbitan | : | Jurnal Teknologi Industri dan Informasi |
| ISSN | : | 1411-5700 |
| Bahasa | : | ENG |
| Tempat Terbit | : | Surabaya |
| Tahun | : | 0000 |
| Volume | : | Vol. 4 Issue 3 0000 |
| Penerbit | : | IJTI |
| Frekuensi Penerbitan | : | |
| Penulis | : | Yalun Arifin, Mangihot Tua Gultom,Elisabeth D.P., Adi Wibowo S. |
| Abstraksi | : | Biological reduction of heavy metal pollutant, hexavalent chromium (Cr6+), by Gram-negative bacterium Escherichia coil ATCC 33456 was investigated in a batch growth system. Concentration of Cr6+ selected for the growth experiment was varied between 0, 5, 10, 20, 30, 40, and 50 ppm and pH of each medium was not controlled in order to monitor the trends. Results showed that during growth on the EC medium supplemented with 5 or 10 ppmof Cr', E. coil was able to remove the cation to as lower concentration as 0.01 ppm and the cells grew at average specific growth rate of 0.1 h-/. Above Cr" concentration of 10 ppm, cell cultures were still able to reduce the cation with removal efficiency of about 70% but without any growing cells. However, in the medium supplemented with up to 50 ppm of Cr6+, removal capability of the cells decreased sharply and no growth was detected. In the medium amended with lower Cr6+ concentration, cation removal occurred during the lag growth phase, which might explain that the intra-cellular surface interactions was the major mechanism. When Cr6+concentration was higher than 20 ppm, the removal also occurred but only during the exponential growth phase, indicating the involvement of the intra-cellular detoxification mechanism. |
| Kata Kunci | : | chromium; Escherichia coli; reduction; heavy metals; wastewater treatment |
| Lokasi | : | p. 196 |
| Terakreditasi | : | belum |