Analisis Proses Penyisihan Mikroplastik Pada IPAL Plastic Recycling Facility dengan Menggunakan Metode Koagulasi-Flokulasi

Fadlilah, Lilya Irsianti (2024) Analisis Proses Penyisihan Mikroplastik Pada IPAL Plastic Recycling Facility dengan Menggunakan Metode Koagulasi-Flokulasi. Masters thesis, Instutut Teknologi Sepuluh Nopember.

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Abstract

Meningkatnya sampah plastik saat ini mendorong upaya pembaruan dan daur ulang produk plastik sebagai strategi untuk mencapai produksi yang berkelanjutan dan mengurangi pencemaran plastik. Namun, mikroplastik masih terdeteksi dalam air limbah dari Plastic Recycling Facility (PRF), berpotensi mencemari badan air penerima dengan partikel berbagai ukuran. Penelitian ini bertujuan untuk menentukan kondisi optimal penyisihan mikroplastik menggunakan metode koagulasi-flokulasi, menentukan jenis koagulan yang efektif dalam proses ini, serta mengidentifikasi persebaran mikroplastik dalam air dan sedimen hasil proses koagulasi-flokulasi.
Tahapan penelitian meliputi pengujian dengan jar test, ekstraksi sampel dan pengamatan mikroskopik.Pengambilan sampel diambil pada tiga titik yaitu : bak ekualisasi, bak buffer tank 1 dan bak clarifier 3. Koagulan penelitian yang
digunakan adalah Aluminium Sulfat Al2(SO4)3 dan Ferric Chloride (FeCl3)dengan variasi konsentrasi dosis 1,95 gr/L, 3,9 g/L dan 5,85 g/L. Sedangkan Aluminium chlorohydrate (ACH) variasi konsentrasi dosis 1,05 gr/L, 2,1 g/L dan 3,1 g/L dan Polyacrilamide (PAM) sebagai coagulant aid. Variasi pH adalah 6, 7, dan 8. Ekstraksi pada larutan dan endapan dilakukan berdasarkan modifikasi metode National Oceanic and Atmospheric Administration Technical Memorandum NOS-OR & R-48. Pada penelitian utama dilakukan penambahan mikroplastik dengan ukuran 251 µm-500 µm.
Hasil penelitian menunjukkan bahwa pada bak ekualisasi, ACH mencapai efisiensi tertinggi yaitu 90,9%, pada Buffer Tank 1 efisiensi tertinggi yaituAl₂(SO₄)₃ 77,27%, dan pada Clarifier 3, efisiensi tertinggi yaitu Al₂(SO₄)₃ 86,36%. Bentuk mikroplastik yang terdeteksi pada IPAL PRF adalah fragmen, film dan fiber. Fragmen pada sedimen mencapai 76%, diikuti film 21% dan fiber 1,3%. Fragmen pada permukaan mencapai 93%, film 5,9% dan fiber 1,19%.
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The increasing plastic waste currently drives efforts to renew and recycle plastic products as a strategy to achieve sustainable production and reduce plastic pollution. However, microplastics are still detected in wastewater from Plastic Recycling Facilities (PRF), potentially contaminating receiving water bodies with particles of various sizes. This research aims to determine the optimal conditions for microplastic removal using the coagulation-flocculation method, identify the most effective types of coagulants in this process, and assess the distribution of microplastics in water and sediment resulting from the coagulation-flocculation process.
The research stages included jar testing, sample extraction, and microscopic observation. Samples were collected at three points: the equalization, buffer tank 1, and clarifier 3. The coagulants used in the study were Al2(SO4)3 and FeCl3 with dose concentration variations of 1.95 g/L, 3.9 g/L, and 5.85 g/L. Additionally, ACH was tested with dose concentration variations of 1.05 g/L, 2.1 g/L, and 3.1 g/L, while Polyacrylamide (PAM) was used as a coagulant aid. The pH variations tested were 6, 7, and 8. Extraction of the solution and sediment was performed based on a modified method from the National Oceanic and Atmospheric Administration Technical Memorandum NOS-OR & R-48. In the main study, microplastics with sizes ranging from 251 µm to 500 µm were added.
The research results show that in the equalization tank, ACH achieved the highest efficiency at 90.9%. In Buffer Tank 1, the highest efficiency was achieved by Al₂(SO₄)₃ at 77.27%, and in Clarifier 3, the highest efficiency was also achieved by Al₂(SO₄)₃ at 86.36%. The types of microplastics detected in the PRF WWTP were fragments, films, and fibers. Fragments in the sediment accounted for 76%, followed by films at 21%, and fibers at 1.3%. On the surface, fragments accounted for 93%, films for 5.9%, and fibers for 1.19%.

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	Koagulasi-flokulasi, mikroplastik, plastic recycling facility, sedimen Coagulation-flocculation, microplastics, plastic recycling facility, sediment
Subjects:	T Technology > TD Environmental technology. Sanitary engineering > TD427.P62 Microplastics--Environmental aspects. T Technology > TD Environmental technology. Sanitary engineering > TD455 Chemical precipitation. Coagulation. Flocculation. Water--Purification--Flocculation.
Divisions:	Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Environmental Engineering > 25101-(S2) Master Thesis
Depositing User:	Lilya Irsianti Fadlilah
Date Deposited:	05 Aug 2024 01:18
Last Modified:	05 Aug 2024 01:18
URI:	http://repository.its.ac.id/id/eprint/110990

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