Farida, Ida (2017) Penentuan kandungan Fe, Ni, dan Mn dalam sedimen di pelabuhan Sendang Biru secara fraksinasi menggunakan metode BCR (The Bureau Community of Reference) / Ida Farida. Diploma thesis, Universitas Negeri Malang.
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ABSTRAK Farida Ida. 2017. Penentuan Kandungan Fe Ni dan Mn dalam Sedimen di Pelabuhan Sendang Biru secara Fraksinasi menggunakan Metode BCR (The Bureau Community of Reference). Skripsi Jurusan Kimia Fakultas MIPA Universitas Negeri Malang. Pembimbing (I) Dr. Sc. Anugrah Ricky Wijaya M.Sc. (II) Dra. Surjani Wonorahardjo Ph. D. Kata Kunci sedimen fraksinasi logam metode BCR Berdasarkan penelitian sebelumnya tiga jenis logam berat yang dominan terdapat pada sedimen di Pelabuhan Sendang Biru Malang yaitu Fe Ni dan Mn. Ketiga logam berat tersebut diduga merupakan kontaminan yang berasal dari antropogenik di sekitar pelabuhan. Logam berat yang berasal dari antropogenik akan tertahan pada fraksi nonresidual dalam sedimen. Adanya perubahan lingkungan perairan baik secara alami maupun antropogenik dapat mempengaruhi keberadaan logam berat dalam sedimen. Logam berat yang larut ke perairan dapat memberikan dampak negatif pada sistem ekologis dan biologis. Oleh karena itu diperlukan penelitian mengenai kandungan Fe Ni dan Mn secara fraksinasi dalam sedimen pelabuhan Sendang Biru untuk mengetahui mobilitasnya yang dapat mempengaruhi sistem ekologis dan biologis serta penilaian status sedimen di Pelabuhan Sendang Biru. Penelitian ini bersifat eksperimental laboratoris dan dilakukan di Laboratorium Penelitian Jurusan Kimia FMIPA Universitas Negeri Malang. Penelitian terdiri dari tiga tahap (1) pengambilan dan perlakuan sampel sedimen (2) pengujian keefektifan metode BCR untuk analisis Fe Ni dan Mn menggunakan sedimen Pelabuhan Sendang Biru dan rujukan JSD-1 (Geochemical Survey of Japan) serta (3) penentuan konsentrasi Fe Ni dan Mn secara fraksinasi pada sedimen di Pelabuhan Sendang Biru. Hasil penelitian menunjukkan bahwa metode BCR efektif me-leaching Fe dan Ni tetapi kurang efektif me-leaching Mn pada sedimen Pelabuhan Sendang Biru. Metode BCR mampu me-leaching Fe dan Ni secara presisi dan akurat namun tidak mampu me-leaching Mn secara akurat. Hasil fraksinasi Fe Ni dan Mn pada sedimen Pelabuhan Sendang Biru menunjukkan Fe dominan pada fraksi residual sedangkan Ni dan Mn dominan pada fraksi nonresidual. Konsentrasi Fe Ni dan Mn pada fraksi dominannya secara berturut-turut sebesar 15.715 000 mg/Kg (90 714%) 68 933 mg/Kg (78 817%) 186 513 mg/Kg (77 217%). Fe dominan pada fraksi residual mengindikasikan bahwa Fe terikat dengan silikat dan alumina dalam mineral alami sedimen sedangkan Ni dan Mn dominan pada fraksi nonresidual mengindikasikan bahwa kedua logam tersebut berasal dari antropogenik. Ditinjau dari konsentrasi masing-masing logam berat sedimen Pelabuhan Sendang Biru maksimal terkategori terkontaminasi moderat oleh Ni dan terkontaminasi rendah oleh Fe serta Mn. Namun ditinjau dari total konsentrasi logam berat sedimen Pelabuhan Sendang Biru terkontaminasi rendah oleh Fe Ni dan Mn. ABSTRACT Farida Ida. Determination of Fe Ni and Mn Contents and Their Fractionations in Sediment Sendang Biru Port using The Method of BCR (The Bureau Community of Reference). Undergraduate Thesis Department of Chemistry Faculty of Mathematics and Natural Sciences State University of Malang. Supervisors (I) Dr. Sc. Anugrah Ricky Wijaya M.Sc. (II) Dra. Surjani Wonorahardjo Ph. D. Keywords sediment metal fractions BCR method Based on the previously research three kinds of dominant on heavy metals in Sendang Biru Port s sediment are Fe Ni and Mn. These heavy metals are suggested by affected of anthropogenic process surrounding the Sendang Biru Port. That metals from anthropogenic will be retained in non-residual fractions of sediment. The changes in the aquatic environment either naturally or a result of anthropogenic may affect the presence of heavy metals in the sediment. Heavy metal that dissolves in water gives a negative impact on the ecological and biological systems. Therefore it is necessary to study the contents of Fe Ni and Mn and their fractions to determine the mobility of those metals which can affect ecological and biological systems as well as the status assessment of sediment in the Sendang Biru Port. The type of reseach is experimental laboratory research and located in Chemical Research Laboratory Faculty of Mathematics and Natural Science State University of Malang. This research consists of three steps (1) sampling and treatment of sediment (2) testing the effectiveness of the BCR method for Fe Ni and Mn analysis using Sendang Biru Port s sediment and JSD-1 reference (Geochemical Survey of Japan) and (3) determining the concentration of Fe Ni and Mn in their fractions of Sendang Biru Port s sediment. The results show that BCR method is effective for leaching Fe and Ni but it is less effective for leaching Mn in Sendang Biru Port s sediment. The BCR method capable for leaching Fe and Mn precision and accurately but it is not effective for leaching Mn accurately. The fractionation of Fe Ni and Mn on the sediment of Sendang Biru Port show that Fe dominant in residual fraction while Ni and Mn are dominant in non-residual fraction. In the dominant fraction concentration of Fe Ni and Mn are 15 715.000 mg/Kg (90.714%) 68.933 mg/Kg (78.817%) 186.513 mg/Kg (77.217%) respectively. The dominance of Fe in the residual fraction indicates that Fe is bound to silicate and aluminate in natural sediment minerals whereas the dominance of Ni and Mn in non-residual fractions indicates that two metals are derived from anthropogenic activity. Assessment from the concentrations of each heavy metal Sendang Biru Port s sediment has maximum categorized in moderately contaminated by Ni and have low contaminated by Fe and Mn. However assessment the total concentration of heavy metals in Sendang Biru Port s sediment has low contaminated by Fe Ni and Mn.
| Item Type: | Thesis (Diploma) |
|---|---|
| Subjects: | Q Science > QD Chemistry |
| Divisions: | Fakultas Matematika dan IPA (FMIPA) > Departemen Kimia (KIM) > S1 Kimia |
| Depositing User: | Users 2 not found. |
| Date Deposited: | 16 Jun 2017 04:29 |
| Last Modified: | 09 Sep 2017 03:00 |
| URI: | http://repository.um.ac.id/id/eprint/23935 |
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