Perancangan Sistem Daur Ulang Air Limbah dengan Sewage Treatment Plant (STP) untuk Efisiensi Penggunaan Air di Gedung Koperasi

Muhammad Thariq Resmaindra; Rahmat Hidayat

doi:10.31850/karajata.v5i1.3539

Muhammad Thariq Resmaindra Politeknik Astra
Rahmat Hidayat Politeknik Astra

DOI: https://doi.org/10.31850/karajata.v5i1.3539

Keywords: Payback Period, Pump, Recycle STP, SDG, Sustainability

Abstract

Koperasi XX Building primarily used water supplied by the regional water company (PDAM) due to restriction on groundwater usage, specifically related to the Groundwater Utilization Permit (SIPA). In line with the commitment to improving water resource efficiency and supporting the Sustainable Development Goals (SDGs) of the UN and Indonesian government, the parent company has set a target to reduce water consumption by 30% by 2030. To address this, this study proposed a recycle sewage treatment plant (STP) system designed to meet water efficiency needs by using treated wastewater for non-potable uses, including toilet flushing, garden irrigation, and parking lot cleaning. This study included civil engineering analyses, such as pump selection and piping design, along with evaluations of water savings, Net Quality Income (NQI), and payback period. A Teral lifting pump (ASVM (N,G) 406-52.2) and 5 cm (2-inch) pipes are used, providing a flow rate of 150 m³/min. A 7 m³ upper tank is used for treated water storage. The project is estimated to cost Rp 582,552,846.10 and will require 39 days for implementation. It is expected to reduce PDAM water usage by 78%, leading to a 63% decrease in water bills. Despite a lengthy payback period of 21 years, this initiative offers significant environmental and sustainability benefits.

References

Alrbai, M., Al-Dahidi, S., Shboul, B., Abusorra, M., & Hayajneh, H. (2024). Techno-economic feasibility study of ammonia recovery from sewage sludge digestate in wastewater treatment plants. Cleaner Environmental Systems, 15, 100235.

Emami, A. M., Baniasadi, E., & Rezk, A. (2024). Exergy-economic based multi-objective optimization and carbon footprint analysis of solar thermal refrigeration systems. Case Studies in Thermal Engineering, 64, 105425.

Fadholi, F. A. N., Sulistyorini, L., Arfiani, N. D., Prasetyo, P. T., & Hafid, I. F. (2024). Pengolahan Air Limbah Domestik Menggunakan Sewage Treatment Plant di PT. PLN Nusantara Power Unit Pembangkitan Paiton. Buletin Keslingmas, 43(4), 171–177.

Harahap, J., Gunawan, T., Suprayogi, S., & Widyastuti, M. (2021). A review: Domestic wastewater management system in Indonesia. IOP Conference Series: Earth and Environmental Science, 739(1), 012031.

Hellegers, P., & van Halsema, G. (2021). SDG indicator 6.4.1 “change in water use efficiency over time”: Methodological flaws and suggestions for improvement. Science of The Total Environment, 801, 149431.

Kuswantoro, H., Sholihin, M., & Djajadikerta, H. G. (2023). Exploring the implementation of sustainable development goals: a comparison between private and state-owned enterprises in Indonesia. Environment, Development and Sustainability, 25(10), 10799–10819.

Marriott, M. (2016). Nalluri & Featherstone’s Civil Engineering Hydraulics: Essential Theory with Worked Examples 6th Edition. West Sussex: John Wiley & Sons, Inc.

Mustufa, A., Anwar, M., & Khan, T. I. (2024). Energy optimization of an institutional building to reduce the energy and air conditioning demand. Journal of Building Engineering, 98, 111309.

Obaideen, K., Shehata, N., Sayed, E. T., Abdelkareem, M. A., Mahmoud, M. S., & Olabi, A. G. (2022). The role of wastewater treatment in achieving sustainable development goals (SDGs) and sustainability guideline. Energy Nexus, 7, 100112.

Peraturan Gubernur DKI Jakarta No. 122 Tahun 2005 tentang Pengelolaan Air Limbah Domestik di Provinsi Daerah Khusus Ibukota Jakarta.

Rajapakse, J., Otoo, M., & Danso, G. (2023). Progress in delivering SDG6: Safe water and sanitation. Cambridge Prisms: Water, 1, e6.

Siswanto, E. (2021). Buku Ajar Manajemen Keuangan Dasar. Malang: Penerbit Universitas Negeri Malang.

Wicaksono, A. P. N. (2023). Eksplorasi Sustainable Development Goals (SDGs) Disclosure Di Indonesia. Jurnal Akademi Akuntansi, 6(1), 125–156.

Widyarani, Wulan, D. R., Hamidah, U., Komarulzaman, A., Rosmalina, R. T., & Sintawardani, N. (2022). Domestic wastewater in Indonesia: generation, characteristics and treatment. Environmental Science and Pollution Research, 29(22), 32397–32414.

Zevhianan, A. A. (2023). Efforts to Treatment and Utilize Domestic Wastewater in the AMDK and Beverages Industry in East Java. CHEMVIRO: Jurnal Kimia Dan Ilmu Lingkungan (JKIL), 1(2), 36–46.