ANALISIS TEKNO-EKONOMI DAN DESAIN PROSES PRODUKSI BIOSTIMULAN CAIR BERBASIS FERMENTASI LIMBAH CAIR INDUSTRI TAHU
Abstract
The utilization of tofu industry wastewater as liquid biostimulant represents an innovative approach to reducing environmental pollution while simultaneously creating economic value. The production process was carried out through 14 days of anaerobic fermentation, using tofu wastewater as the primary raw material, with EM4, coconut water, and molasses added as supplementary nutrients. The laboratory results showed that the nutrient content in the liquid biostimulant was 0.28% Nitrogen (N), 87.7 ppm Phosphorus (P), and 463 ppm Potassium (K). The results indicate that the initial production cost of Rp 4,675.00 per liter can be reduced to Rp 3,173.00 following plant optimization with a monthly capacity of 6,000 liters. The economic analysis revealed a net profit of Rp 10,962,500.00 per month with a payback period of less than two months. Application trials of liquid biostimulant on mustard greens and spinach demonstrated enhanced growth compared to the control, as reflected in increased plant height and greener leaf coloration. Accordingly, converting tofu wastewater into liquid biostimulant is both technically and economically feasible, offering a sustainable waste management strategy as well as a profitable business opportunity.
Downloads
Copyright (c) 2026 Rista Rahmaniyah Yansi, Ashifa Rahmawati, Mulyana Mulyana, Arinta Agnie Dewantari, Arinta Agnie Dewantari
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Jurnal allows anyone to compose, correct, and do derivative works, even for commercial purposes, as long as they credit for the original work. This license is the freest. It is recommended for maximum distribution and use of licensed material.
The submitted paper is assumed not to contain any proprietary materials that are not protected by patent rights or patent applications; The responsibility for technical content and protection of proprietary materials rests with the authors and their organizations and not the responsibility of journal or its editorial staff. The primary (first/appropriate) author is responsible for ensuring that the article has been viewed and approved by all other authors. The author's responsibility is to obtain all necessary copyright waivers to use any copyrighted material in the manuscript before submission.
Jurnal Pendidikan, Sains dan Teknologi allows the author(s) to hold the copyright without restrictions and allow the author(s) to retain publishing rights without restrictions. Jurnal Pendidikan, Sains dan Teknologi CC-BY-SA or an equivalent license as the optimal license for the publication, distribution, use, and reuse of scholarly work. Jurnal Pendidikan, Sains dan Teknologi allows the author(s) to hold the copyright without restrictions and allow the author(s) to retain publishing rights without restrictions. Jurnal Pendidikan, Sains dan Teknologi CC-BY-SA or an equivalent license as the optimal license for the publication, distribution, use, and reuse of scholarly work.
In developing strategy and setting priorities Jurnal Pendidikan, Sains dan Teknologi recognize that free access is better than priced access, libre access is better than free access, and libre under CC-BY-SA or the equivalent is better than libre under more restrictive open licenses. We should achieve what we can when we can. We should not delay achieving free in order to achieve libre, and we should not stop with free when we can achieve libre.
Jurnal Pendidikan, Sains dan Teknologi is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
You are free to:
- Share a copy and redistribute the material in any medium or format
- Adapt a remix, transform, and build upon the material for any purpose, even commercially.
- The licensor cannot revoke these freedoms as long as you follow the license terms.
