Environmental Impact Analysis of Tofu Industry Waste on Coastal Resilience in Surabaya

DOI

10.2991/978-2-38476-565-2_10How to use a DOI?

Keywords

Cleaner Production; Coastal Resilience; Environmental Impact; Life Cycle Assessment (LCA); Tofu Industry Waste

Abstract

Household-scale tofu industries in Surabaya, a strategic coastal city in East Java, play a vital role in the local economy but pose significant challenges to environmental sustainability. The discharge of untreated liquid waste from these industries into the city’s river network eventually flows into the estuarine and coastal waters of the Madura Strait, threatening aquatic ecosystems. This study aims to analyze the environmental impact of tofu production activities on coastal environmental resilience and measure pollution potential using the Life Cycle Assessment (LCA) approach based on openLCA software. The LCA method was applied with a gate-to-gate boundary and a functional unit of 1 kg of tofu, covering input-output inventory and impact analysis using the ReCiPe Midpoint (H) method. The results indicate that the usage of combined firewood and LPG fuel generates the highest Global Warming Potential (GWP) impact of 529.5 kg/day. Furthermore, liquid waste discharge (9-13 L/kg of tofu) is identified as the primary contributor to water pollution, causing significant Eutrophication and Aquatic Ecotoxicity impacts, with values reaching 6.391 Kg 1,4-DCB/day. This high pollution load exacerbates the vulnerability of Surabaya’s coastal water resources. To support the vision of a resilient and sustainable coastal city, this study recommends the implementation of cleaner production strategies, including fuel substitution, water recycling, and the conversion of liquid waste into organic fertilizer to mitigate environmental degradation.

Copyright

© 2026 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Raden Danang Aryo Putro Satriyono
AU  - Salsabila Mustofa
AU  - Dinda Safitri Ramadhani
AU  - Farah Tsanyna’ila
PY  - 2026
DA  - 2026/04/30
TI  - Environmental Impact Analysis of Tofu Industry Waste on Coastal Resilience in Surabaya
BT  - Proceedings of the 2nd International Conference on Social Environment Diversity (ICOSEND 2025)
PB  - Atlantis Press
SP  - 83
EP  - 87
SN  - 2352-5398
UR  - https://doi.org/10.2991/978-2-38476-565-2_10
DO  - 10.2991/978-2-38476-565-2_10
ID  - Satriyono2026
ER  -