Maasah, Atshilah Nahdah and Putri Setiani, ST. MES. Ph.D. and Prof. Dr. Ir. Bambang Suharto., MS. (2022) Analisis Kelimpahan Mikroplastik pada Sedimen di Muara Sungai Porong Kabupaten Sidoarjo. Sarjana thesis, Universitas Brawijaya.
Abstract
Meningkatnya penggunaan plastik semakin meningkat karena sifatnya yang kuat dan tidak mudah rusak oleh pelapukan. Keberadaan mikroplastik banyak ditemukan pada perairan dan sedimen, akan tetapi kelimpahan mikroplastik lebih banyak terdapat pada sedimen. Tujuan penelitian ini yaitu untuk mengetahui jenis, warna, uk dan kelimpahan mikroplastik pada sedimen di Muara Sungai Porong. Dampak pencemaran lebih banyak terdapat pada Muara Sungai karena, Muara Sungai merupakan bagian hilir sungai yang langsung berhubungan dengan laut yang berfungsi sebagai pengeluaran air sungai. Penelitian ini dilakukan dengan beberapa tahap yaitu penentuan lokasi pengambilan sampel, dan analisis laboratorium. Pada tahap analisis laboratorium sampel sedimen terdapat beberapa tahapan lagi yaitu preparasi sampel, pemisahan/floatasi plastik berdasarkan jenis, penghancuran bahan organik dengan menggunakan hidrogen peroksida, penyaringan, identifikasi mikroplastik dengan menggunakan mikropskop dan pengujian tipe polimer mikroplastik dengan menggunakan uji Fourier Transform Infrared Spectrophotometry (FTIR). Hasil penelitian diperoleh nilai kelimpahan mikroplastik yang paling dominan adalah pada jenisnya yaitu jenis fiber dengan persentase sebesar (45%), menurut warnanya yaitu transparan dengan persentase sebebsar (40%), dan mikroplastik menurut ukurannya paling banyak ditemukan pada ukuran mikroplastik 250 μm dengan persentase sebebsar (61%). Secara keseluruhan didapatkan total kelimpahan mikroplastik yaitu sebesar 13606,66 dengan kelimpahan tertinggi berada pada titik 1c dimana pada titik tersebut merupakan titik yang dekat dengan pemukiman penduduk dan juga banyak aktivitas nelayan di titik tersebut . Hasil uji Fourier Transform Infrared (FTIR) pada sedimen Muara Sungai Porong menunnjukkan beberapa polimer yaitu Polyethylene (PE), Polypropylene (PP), Polyestyren (PS), Polyvinil Chloride (PVC), Polythelyene Therapthalate (PET), dan High Density Polyethylene (HDPE).
English Abstract
The increasing use of plastic is increasing because it is strong and not easily damaged by weathering. The persentasion of microplastics is mostly found in waters and sediments, but the abundance of microplastics is more abundant in sediments. The purpose of this study was to determine the type and abundance of microplastics in sediments at the Porong River Estuary. The impact of pollution is mostly found in the estuary because the estuary is the downstream part of the river which is directly connected to the sea which functions as a discharge of river water. This research was conducted in several stages, namely determining the location of sampling, sampling, and laboratory analysis. At the stage of laboratory analysis of sediment samples, there are several more steps, namely sample preparation, separation/floatation of plastics by type, destruction of organic matter using hydrogen peroxide, filtering, identification of microplastics using a microscope and testing of types of microplastic polymers using the Fourier Transform Infrared Spectrophotometry (FTIR) test. ). The results showed that the most dominant abundance value of microplastic was in its type, namely the type of fiber with a percentage of (45%), according to its color, which was transparent with a percentage of (40%), and microplastic according to its size was most commonly found in microplastic size of 250 μm with a percentage of (61%). Overall, the total abundance of microplastics is 13606.66 with the highest abundance being at point 1c where at that point is a point close to residential areas and there are also a lot of fishing activities at that point. The results of the Fourier Transform Infrared (FTIR) test on the Porong River Estuary sediment showed several polymers, namely Polyethylene (PE), Polypropylene (PP), Polyestyren (PS), Polyvinil Chloride (PVC), Polythelyene Therapthalate (PET), and High Density Polyethylene (HDPE).
| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | 0522100011 |
| Uncontrolled Keywords: | FTIR, Microplastic, Sediment,FTIR, Mikroplastik, Sedimen |
| Subjects: | 600 Technology (Applied sciences) > 630 Agriculture and related technologies |
| Divisions: | Fakultas Teknologi Pertanian > Keteknikan Pertanian |
| Depositing User: | soegeng sugeng |
| Date Deposited: | 26 Apr 2022 00:57 |
| Last Modified: | 26 Apr 2022 00:57 |
| URI: | http://repository.ub.ac.id/id/eprint/190148 |
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