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Abstract ABS-50

Environmental Impact Analysis of Tofu Industry Waste on Coastal Resilience in Surabaya. Raden Danang Aryo Putro Satriyono, Farah Tsanyna^ila Corresponding Author: Raden Danang Aryo Putro Satriyono

Question from Ms. Intan Pamungkas 2025.12.16 11:52:35 Where were the main environmental hotspots in tofu production? Was it energy use, soy processing, or something else? Thanks

Reply from Mr. Raden Danang Aryo Putro Satriyono 2025.12.16 13:42:11 Based on the Life Cycle Assessment (LCA) results, the study identified untreated liquid waste discharge as the most significant environmental hotspot overall, specifically driving the peak impact in Freshwater Ecotoxicity (6.391 kg 1,4-DCB/day) due to the release of high organic loads into river networks. However, energy use was identified as the secondary critical hotspot, particularly for Global Warming Potential (529.5 kg CO&#8322--eq/day), which is caused by the inefficient simultaneous combustion of firewood and LPG during the boiling stage. Therefore, the main hotspots are split between the boiling process (for air emissions) and the waste disposal phase (for aquatic resilience)

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