Perancangan Sistem Daur Ulang Air Limbah Pada Industri Minuman PT.X

Hertiani, Hanna (2026) Perancangan Sistem Daur Ulang Air Limbah Pada Industri Minuman PT.X. Masters thesis, Institut Teknologi Sepuluh Nopember.

Text 6014232009-Master_Thesis.pdf - Accepted Version Restricted to Repository staff only Download (3MB) | Request a copy

Abstract

Industri minuman berperisa PT X menghasilkan air limbah dari berbagai aktivitasnya. Biaya operasional yang tinggi dikeluarkan PT X untuk pengangkutan dan pengolahan air limbah ke pihak ketiga. Selain itu, biaya pembelian air tanah untuk keperluan produksi cukup tinggi. Oleh karena itu, penelitian ini bertujuan untuk merancang sistem daur ulang air limbah hingga menghasilkan air bersih yang dapat digunakan kembali. Air limbah, yang berasal dari proses Cleaning In Place (CIP) dan pencucian botol dengan volume 18 m³/hari, memiliki nilai Chemical Oxygen Demand (COD) awal 1640 mg/L melebihi baku mutu (300 mg/L) berdasarkan Peraturan Menteri Lingkungan Hidup No. 5/2014 Lampiran XLVII tentang Baku Mutu Air Limbah untuk Golongan 2. Sistem yang dirancang berkapasitas 20 m³/hari dan menggunakan kombinasi fisika-kimia berupa unit Elektrokoagulasi (EC), Sedimentasi, Advanced Oxidation Process (AOP), diikuti oleh Sand Filter serta Carbon Filter. Optimalisasi sistem dilakukan dengan melakukan variasi elektroda dan besarnya arus listrik pada unit EC, penentuan dosis Al2SO4 pada unit sedimentasi, penentuan dosis ozon pada AOP dan pemilihan spesifikasi yang sesuai untuk unit filter. Hasil penelitian ini menghasilkan sistem daur ulang air limbah yang menunjukkan efektivitas penyisihan mencapai 88-93%, menghasilkan air daur ulang yang memenuhi seluruh baku mutu air minum sesuai Peraturan Menteri Kesehatan No. 2 Tahun 2023, yang dapat dimanfaatkan untuk sanitasi (flushing toilet) dan pembilasan botol. Analisis kelayakan ekonomi dilakukan dengan pendekatan kuantitatif menggunakan data Capital Expenditure (CAPEX) dan Operational Expenditure (OPEX) untuk menghitung indikator Net Cash Flow (NCF), Payback Period (PP), Net Present Value (NPV), Internal Rate of Return (IRR), dan Benefit- Cost Ratio (BCR) . Secara finansial, proyek ini sangat layak dengan penghematan biaya operasional keseluruhan 94,89%. Kelayakan investasi ini ditunjang oleh indikator finansial yang sangat kuat yaitu Payback Period (PP) 2 bulan 13 hari, Net Present Value (NPV) positif Rp 22,03 Milyar, dan Benefit-Cost Ratio (BCR) mencapai 12,10.
===========================================================================================================================
The design of a wastewater recycling system for the Beverage Industry PT X was conducted with a primary focus on cost efficiency and environmental sustainability. The background of this research stems from the high operational costs incurred by PT X for wastewater transportation and treatment by third parties, as well as the corporate necessity to reduce groundwater consumption. The wastewater, originating from Cleaning In Place (CIP) and bottle washing processes with a volume of 18 m³/day, exhibits an initial Chemical Oxygen Demand (COD) value of 1640 mg/L. This exceeds the quality standard of 300 mg/L, indicating a high organic pollutant load in accordance with the Regulation of the Minister of Environment No. 5/2014 Annex XLVII regarding Wastewater Quality Standards for Group II. The designed system has a capacity of 20 m³/day and employs a non-biological combination: Electrocoagulation (EC), Advanced Oxidation Process (AOP), followed by Sand Filter and Carbon Filter. The selection of this non-biological method aims to mitigate potential odors, considering the plant's proximity to residential areas. Test results demonstrate high system effectiveness, yielding recycled water that fully complies with the Drinking Water Quality Standards (Minister of Health Regulation No. 2 of 2023). Biological parameters show E. coli and Total Coliform values of 0 CFU/100 mL, making the water suitable for reuse in sanitation (toilet flushing) and bottle rinsing. The economic feasibility analysis was conducted using a quantitative approach, utilizing Capital Expenditure (CAPEX) and Operational Expenditure (OPEX) data to calculate Net Cash Flow (NCF), Payback Period (PP), Net Present Value (NPV), Internal Rate of Return (IRR), and Benefit-Cost Ratio (BCR) indicators. Financially, the project is highly feasible, achieving overall operational cost savings of 94.89%. This investment feasibility is supported by robust financial indicators, including a remarkably short Payback Period (PP) of 2 months and 13 days, a positive Net Present Value (NPV) of IDR 22.03 Billion, and a Benefit-Cost Ratio (BCR) of 12.10

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	Air Limbah, Daur Ulang Air, Industri Minuman, Kontaminan Air.
Subjects:	T Technology > TD Environmental technology. Sanitary engineering > TD194.6 Environmental impact analysis T Technology > TD Environmental technology. Sanitary engineering > TD430 Water--Purification. T Technology > TD Environmental technology. Sanitary engineering > TD433 Water treatment plants
Divisions:	Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Environmental Engineering > 25101-(S2) Master Thesis
Depositing User:	Hanna Hertiani
Date Deposited:	22 Jan 2026 08:46
Last Modified:	22 Jan 2026 08:46
URI:	http://repository.its.ac.id/id/eprint/130092

Actions (login required)

View Item