5. Pencemaran Minyak [email protected] KOMPOSISI MINYAK Minyak (Crude oil) Hidrokarbon Minyak (crude oil) Hidrokarbon Non hidrokarbon Non hidrokarbon 83-87% atom karbon 10-14% atom hidrogen 0,1-2% nitrogen 0,05-6% sulfur 0,05-1,5% oksigen < 0,3% V, Fe, Ni JENIS MINYAK Organik Minyak • Tanaman, hewan, dan organisme lain melalui proses metabolisme alami • Contoh lipid, steroid Mineral • bahan organik kuno fosil, seperti zooplankton dan ganggang, tumbuhan dan hewan, yang mengalami proses geokimia kemudian berubah menjadi minyak Light weight components • C1-C10 • More bioavailable High weight components Medium weight components • ≥ C23 • Chronic, car inogenic • C11-C22 • Less affect on organism TEORI ASAL MULA MINYAK Teori Organik Teori anorganik Teori Asal Minyak Teori Anorganik (Abiogenesis) Alkali metal CO₂ Karbida Karbida H₂O Ocetylena Ocetylena Suhu tinggi Benzena Teori Organik (Biogenesis) Pengumpulan & pengawetan zat organik dalam sedimen Degrad asi thermal Reaksi katalis Aktifasi Radioa Transformasi menjadi minyak bakteri ktivasi Migrasi minyak bumi dalam sedimen Akumulasi tetes minyak FATE MINYAK www.nap.edu SUMBER PENCEMARAN http://galuhadhitiaputra.blogspot.com/2011/10/pencemaran-air-laut-karenalimbah.html http://marinesciencebrawijaya.blogspot.com/2012_01_08_archive.html (Harrison, 2001) (Thibodeaux et al., 2011) EFEK PENCEMARAN MINYAK www.nap.edu (Harrison, 2001) CLEAN UP Natural Clean Up From: http://www.itopf.com/fate.html Human Intervention Clean Up • • • • • • • • • Booms, Skimmers (remove floating oil) Sorbents (absorb oil) : straw/peat/synthetic Dispersing agents, Gelling agents (aid mechanical extraction) Biological agents (oil metabolizing microbes) Mechanical washing Trenches Dredging http://www.slickbar.com/slickbar/oil_booms/air_inflatable_boom/ Boom http://www.americanlisted.com/georgia_10/boats_5/skimmers_r_us_oil_spill_boats_oil_skimmers_oil_skimmer_skimmer_17035079.html http://www.americantex.com/id3.html Sorbent http://www.mass.gov/dep/cleanup/os/Pages/Sorbents.html http://www.wiredchemist.com/environmental/instructional/a-case-study-of-the-exxon-valdez-oil-spill-of-1989/oil-spill-containment-and-cleanup-technology http://www.treehugger.com/natural-sciences/one-more-reason-oil-spills-arebad-surface-cleanup-can-make-it-worse-for-fish-below.html http://www.black-tides.com/uk/response/response-at-sea/dispersion.php http://gulfofmexicooilspillblog.com/2011/02/12/gulf-of-mexico-oil-spill-blog-beach-clean-up-matrix/ http://www.evidence.org.kw/photos.php?page=4066_Oil-Filled-Trench