Yunus, Khalda Ardelia (2019) Distribusi Mesoplastik dan Mikroplastik di Kali Surabaya pada Segmen Gunung Sari sampai Jagir. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Kota Surabaya dengan kepadatan penduduk 8.463 jiwa per km2 menghasilkan 8,25% sampah plastik per tahun 2016. Penelitian ini dilakukan di segmen Gunung Sari sampai Jagir. Sepanjang segmen ini terdapat permukiman padat penduduk. Akibat keterbatasan pemerintah dalam pelayanan pengelolaan sampah, 2,9% sampah terbuang ke sungai. Tanpa dipungkiri sungai pun sudah mengalami pencemaran. Salah satu jenis sampah yang sering ditemukan ialah sampah plastik yang terbagi menjadi makroplasik, mesoplastik (MeP), dan mikroplastik (MP). Penelitian ini bertujuan untuk (1) menentukan kelimpahan meso- dan mikroplastik, (2) menentukan karakteristik termasuk bentuk, ukuran, warna, dan jenis meso dan mikroplastik, dan (3) menentukan distribusi vertikal dan horizontal mesoplastik dan mikroplastik di Kali Surabaya pada segmen Gunung Sari sampai Jagir. Pengambilan sampel dilakukan dengan metode grab sampling. Pengambilan sampel dilakukan pada permukaan air, setengah kedalaman air, dan dasar kedalaman di posisi kanan, tengah, dan kiri sungai. Pengulangan dilakukan sebanyak dua kali sehingga didapat 54 sampel air pada 3 lokasi pengambilan sampel. Pengambilan sampel meso- dan mikroplastik dilakukan menggunakan manta trawl, kemudian diekstraksi dengan hidrogen peroksida dan katalis FeSO4.7H2O. Sampel dipisahkan menurut massa jenis dengan bantuan NaCl untuk selanjutnya diidentifikasi berdasarkan karakteristik visual. Polimer penyusun plastik dianalisis dengan FTIR. Kelimpahan meso- dan mikroplastik di titik Gunung Sari sebanyak 15,9 partikel/m3, di titik Joyoboyo kelimpahan terhitung sebanyak 56,2 partikel/m3, dan di titik Jagir, kelimpahan terhitung sebanyak 58,1 partikel/m3. Partikel berbentuk film mendominasi di penampang kanan dan kiri sungai kecuali di segmen Gunung Sari yaitu pada setengah kedalaman. Partikel LMP di titik Gunung Sari paling banyak dijumpai di permukaan sungai (4,7 partikel/m3). Di titik Joyoboyo, partikel LMP paling banyak terdapat di setengah kedalaman sungai (16,9 partikel/m3). Namun di titik Jagir, partikel SMP mendominasi yaitu di dasar sungai (22,1 partikel/m3). Warna dari meso- dan mikroplastik yang mendominasi ialah transparan dengan rata-rata tertinggi di dasar sungai titik Jagir. Dari total 30 sampel bentuk dan warna, dipilih 16 sampel dari titik pengambilan sampel yang memiliki bentuk dan warna partikel terbanyak. Didapatkan polimer yang terkandung di antaranya low density polyethylene (LDPE), polystrene (PS), polypropylene (PP), dan polyethylene terephthalate (PET). PP mendominasi pada permukaan air sedangkan LDPE mendominasi pada setengah kedalaman dan dasar air.
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Surabaya with a population density of 8.463 people per km2 produces 8.25% plastic waste in 2016. This research was conducted on Gunung Sari until Jagir segment. All of these segments are densely populated settlements. Due to the government’s limitations in managing waste, 2.9% of waste is wasted into rivers. One type of waste that is often found is plastic waste which is divided into macroplastic, mesoplastic (MeP), and microplastic (MP). This study aims to (1) determine meso- and microplastic abundance, (2) determine the characteristics including shape, size, colour, and type of meso- and microplastic, and (3) determine the vertical and horizontal distribution of meso- and microplastic in Surabaya River on Gunung Sari to Jagir segment. Sampling was conducted by grab sampling on the water surface, middle, and bottom in the right, middle, and left position of the river. Repetition was done twice. Total of 54 samples were obtained from 3 sampling locations. Collection of meso- and microplastic samples was done using manta trawl and extracted with hydrogen peroxide and FeSO4.7H2O as catalyst. Samples are then separated based on the density with the help of NaCl to later be identified based on their visual characteristics. The polimer type was analysed using FTIR. Abundance of meso- and microplastic in Gunung Sari was of 15.9 items/m3, in Joyoboyo 56.2 items/m3, and in Jagir 58.1 items/m3. Meso- and microplastics in the shape of film dominated the right and left positions of the river in Gunung Sari segment, in the middle depth. Large microplastics (LMP) were mostly found on the surface water of Gunung Sari (4.7 items/m3). In Joyoboyo, LMPs were most often found in the middle depth (16.9 items/m3). However, in Jagir, particles were dominantly consist of SMP in the bottom (22.1 items/m3). The dominating colour of meso- and microplastic was transparant with the highest number of average located in Jagir segment. From 30 samples, 16 samples of the highest number in shapes and colours were chosen. The polymers obtained were low density polyethylene (LDPE), polystrene (PS), polypropylene (PP), and polyethylene terephthalate (PET). PP dominates on the water surface meanwhile on the half depth and water depth, LDPE was the dominant polymer.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Distribusi, Kali Surabaya, Kelimpahan, Manta Trawl, Mesoplastik, Mikroplastik. |
| Subjects: | T Technology > TD Environmental technology. Sanitary engineering > TD259.2 Drinking water. Water quality T Technology > TD Environmental technology. Sanitary engineering > TD420 Water pollution T Technology > TD Environmental technology. Sanitary engineering > TD789 Refuse and refuse disposal |
| Divisions: | Faculty of Civil Engineering and Planning > Environment Engineering > 25201-(S1) Undergraduate Thesis |
| Depositing User: | Khalda Ardelia Yunus |
| Date Deposited: | 18 Jul 2024 02:08 |
| Last Modified: | 18 Jul 2024 02:08 |
| URI: | http://repository.its.ac.id/id/eprint/66292 |
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