ANALISIS TINGKAT CHEMICAL OXYGEN DEMAND (COD), BIOCHEMICAL OXYGEN DEMAND (BOD), DAN TOTAL DISSOLVE SOLID (TDS) AIR LAUT DI PERAIRAN TELUK LAMPUNG

Kristi Arina, 1017011011 (2015) ANALISIS TINGKAT CHEMICAL OXYGEN DEMAND (COD), BIOCHEMICAL OXYGEN DEMAND (BOD), DAN TOTAL DISSOLVE SOLID (TDS) AIR LAUT DI PERAIRAN TELUK LAMPUNG. Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Lampung.

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DAFTAR LAMPIRAN.pdf

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Abstrak

ABSTRAK Penelitian ini bertujuan untuk menganalisis tingkat COD, BOD dan TDS air laut di perairan Teluk Lampung. Analisis ini dilakukan dengan menggunakan metode titrimetri untuk uji COD, metode winkler untuk uji BOD, dan pengukuran DHL meter untuk uji TDS. Hasil penelitian menunjukkan konsentrasi COD berkisar antara 1323,2 mg/L sampai 4631,2 mg/L. Hasil uji COD menunjukkan adanya pengaruh kedalaman air sehingga air yg terdapat di permukaan memiliki konsentrasi COD yang berbeda dengan air yang terdapat di kedalaman. Pada uji BOD hasil penelitian menunjukkan konsentrasi berkisar antara 36-340 mg/L. Semua sampel memiliki kadar BOD diatas ambang batas baku mutu air laut. Menurut Keputusan Menteri Negara Lingkungan Hidup No. 51 Tahun 2004 Baku Mutu Air Laut untuk biota laut nilai BOD yaitu 20 mg/L. Sedangkan hasil penelitian uji TDS konsentrasi rerata berkisar antara 8760 mg/L sampai 9200 mg/L. Tingginya padatan terlarut tidak selalu diikuti dengan tingginya kekeruhan. Hal ini sesuai dengan pengamatan yang dilakukan dengan membandingkan konsentrasi TDS terhadap warna sampel. Pada Kawasan Way Kuripan/Pulau Pasaran (F) warna air pada sampel hijau keruh, sedangkan pada Kawasan Pulau Pahawang warna air lebih bening tetapi tingktat konsentrasi TDS di Kawasan Pulau Pahawang lebih tinggi dibandingkan di Way Kuripan/Pulau Pasaran. Kata kunci : COD, BOD, TDS, Teluk Lampung ABSTRACT This research aimed to analyze the level of COD, BOD, and TDS in Lampung Bay. This analysis was conducted by using titrimetri method for COD, winkler method for BOD, and DHL meter to TDS. The result of the research showed COD concentration ranged from 1323.2 mg/L to 4631.2 mg/L. The result of COD testing showed that there was influence of water depth so the water in the surface has different COD concentration with the water in the depth. And the result of BOD testing showed the concentration was about 36 mg/L to 340 mg/L. All samples had BOD concentration above the threshold of sea water quality standard. BOD value based on State Environment Minister’s decision No. 51 of 2004 about marine water quality standards for marine biota was 20 mg/L. Meanwhile the result of TDS testing showed the concentration was about mg/L to 9200 mg/L. The high of TDS did not always show the high of muddiness. This matter was appropriate with the experiment that was conducted by comparing TDS concentration through the color of samples. The color of water at Way Kuripan/ Pulau Pasaran (F) was green sludge, whereas the color of water at Pulau Pasaran was limpid but TDS concentration level at Pulau Pahawang was higher than concentration of Way Kuripan/ Pulau Pasaran. Keywords: COD, BOD, TDS, Lampung Bay

Tipe Karya Ilmiah: Skripsi
Subyek: Q Science (General) > QD Chemistry
Program Studi: Fakultas MIPA > Prodi Kimia
Depositing User: 5726725 . Digilib
Date Deposited: 29 Oct 2015 02:14
Last Modified: 29 Oct 2015 02:14
URI: http://digilib.unila.ac.id/id/eprint/14169

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