Kelimpahan dan Karakteristik Mikroplastik Pada Instalasi Pengolahan Air Minum Karangpilang III Kota Surabaya

Mar'atusholihah, Mar'atusholihah (2020) Kelimpahan dan Karakteristik Mikroplastik Pada Instalasi Pengolahan Air Minum Karangpilang III Kota Surabaya. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

PDAM Surya Sembada Surabaya memiliki enam Instalasi Pengolahan Air Minum (IPAM), antara lain IPAM Karangpilang I, II, III dan IPAM Ngagel I, II, dan III. IPAM Karangpilang I, II, dan III menggunakan Kali Surabaya sebagai sumber air baku. Pada tahun 2019 air baku tersebut tercemar mikroplastik (MP) sebanyak 5992 partikel/L. Selain itu, air produksi (air keran dan air tandon) di Surabaya Timur masih terdapat mikrodebris masing-masing sebesar 56,61 dan 30,77 partikel/L. Tujuan dari penelitian ini yaitu: menentukan kelimpahan dan karakteristik mikroplastik pada air baku dan air produksi di IPAM Karangpilang III dan menentukan efisiensi penyisihan mikroplastik pada setiap unit di IPAM Karangpilang III Kota Surabaya. Pada penelitian ini digunakan variabel penelitian unit-unit operasi yang terdiri atas unit intake, unit aerator, unit prasedimentasi, unit flashmix, unit clearator, unit filtrasi, dan unit desinfeksi. Pengambilan sampel dilakukan dengan satu kali dengan menggunakan metode grab sampling pada tanggal 22 Februari 2020 pukul 06.00 – 09.00 WIB. Partikel MP pada sampel air diekstraksi dengan Wet Peroxide Oxidation, yang diikuti penyaringan dengan vacuum filter dan membran PTFE (ukuran pori: 0,2 μm). Partikel MP dipisahkan secara manual dari membran filter ke petri dish menggunakan pinset di bawah dissecting microscope (Sunshine SZM45T-B1 dan Dino Capture 2.0) dengan pembesaran 40× – 60×. Kelimpahan MP pada proses pengolahan air minum di IPAM Karangpilang III menurun dari 54,4 partikel/L di air baku menjadi 13 partikel/L di air produksi (efisiensi penyisihan 76,1%). Bentuk MP didominasi oleh serat, yaitu 94,1% di air baku dan 81,5% di air produksi. Ukuran MP didominasi oleh ukuran 351 – 1000 μm sebesar 42,3% di air baku dan 35,4% di air produksi. Sedangkan warna MP didominasi oleh warna hitam 53,7 % di air baku dan biru 33,8% di air produksi. Kelimpahan MP mengalami fluktuasi pada setiap unit operasi. Unit operasi yang menurunkan kelimpahan MP adalah unit aerator (62,17%), unit prasedimentasi (33,33%), dan desinfeksi (75,1%). ================================================================================================================== Surya Sembada Municipal Water Supply Enterprise of Surabaya City has six Water Treatment Plants (WTPs), namely: Karangpilang I, KarangpiIIang II, Karangpilang III, Ngagel I, Ngagel II, and Ngagel III. The raw water source of Karangpilang I, II, and III WTPs is Surabaya River. The abundance of microplastic (MP) in the raw water in 2019 was 5992 particles/L. In addition, 56.61 and 30.77 particles/L of microdebris were detected in tap water and reservoir water, respectively, in East Surabaya. The aims of this study were to determine the MP abundance and characteristics in the raw and produced water and to determine the efficiency of MP removal in each unit in Karangpilang III WTP. This study was conducted in 6 operating units in Karangpilang III WTP, which consisted of intake, aerator, pre-sedimentation, flashmix, clearator, filtrasi, and disinfection units. Water samples were collected one time using grab sampling method at 06.00 A.M - 09.00 A.M. on 22 Februari 2020. The MP particles were extracted using Wet Peroxide Oxidation method, followed by filtration using vacuum filter and PTFE membrane with 0.2 μm pore size. The MP particles were separated manually from the filter into a clean petri dish using a tweezer under a dissecting microscope (Sunshine SZM45T-B1 and Dino Capture 2.0) with 40× - 60× magnification. The MP abundance in Karangpilang III WTP decreased from 54.4 particles/L in raw water to 13 particles/L in produced water (removal efficiency 76.1%). Shapes of the MPs were dominated by fiber (94.1% in the raw water and 81.5% in the tap water). The MP sizes were dominated by a group size range of 351 - 1000 μm (42.3% in raw water and 35.4% in tap water). The MP colors were dominated by black (53.7% in raw water) and blue (33.8% in tap water). The MP abundance was fluctuated in each operating unit. The operational units that reduce significantly the MP abundance were aeration (62.17%), pre-sedimentation (33.33%), and disinfection (75.1%).

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Abundance, characteristics, Karangpilang, microplastic, WTP,IPAM, Karangpilang, karakteristik, kelimpahan, mikroplastik.
Subjects: T Technology > TD Environmental technology. Sanitary engineering > TD420 Water pollution
T Technology > TD Environmental technology. Sanitary engineering > TD433 Water treatment plants
Divisions: Faculty of Civil, Environmental, and Geo Engineering > Environmental Engineering > 25201-(S1) Undergraduate Theses
Depositing User: Mar`atusholihah Mar`atusholihah
Date Deposited: 19 Aug 2020 01:22
Last Modified: 19 Aug 2020 01:22
URI: http://repository.its.ac.id/id/eprint/78636

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