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Abstract

Rice husk waste is an abundant agricultural byproduct in Karang Langit Village, Lamongan, but its utilization is still limited, posing a potential environmental problem. This community service program aims to modernize agricultural practices by utilizing rice husk as a hydroponic growing medium to support food security and promote a circular economy. The methods applied include community coordination, carbonization of rice husks, preparation of the hydroponic system, and both theoretical and practical hands-on training. Evaluation results show a significant increase in participants’ knowledge by 32%. A total of 85% of participants successfully prepared a viable rice-husk-based growing medium, and 75% were able to cultivate and harvest leafy vegetables in the trial phase. Additionally, a farmer group was formed and is committed to independently continuing hydroponic practices after the program’s conclusion. These results confirm that utilizing rice husk as a hydroponic medium not only enhances community skills and self-sufficiency but also opens new economic opportunities. This model is recommended for replication in other agricultural areas to support local food security and environmental sustainability.

Keywords

Circular economy Hydroponics Food security Rice husk

Article Details

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

Author Biographies

Caecilia Pujiastuti, Universitas Pembangunan Nasional "Veteran" Jawa Timur, Surabaya, Indonesia

Department of Chemical Engineering

Raka Selaksa Charisma Muchamad, Universitas Pembangunan Nasional "Veteran" Jawa Timur, Surabaya, Indonesia

Department of Chemical Engineering

Aisyah Alifatul Zahidah Rohmah, Universitas Pembangunan Nasional "Veteran" Jawa Timur, Surabaya, Indonesia

Department of Chemical Engineering

M. Ghufron Chakim, Universitas Pembangunan Nasional "Veteran" Jawa Timur, Surabaya, Indonesia

Department of Agrotechnology

Achmad Rizal, Universitas Pembangunan Nasional "Veteran" Jawa Timur, Surabaya, Indonesia

Department of Chemical Engineering

Salsabilla Azka, Universitas Pembangunan Nasional "Veteran" Jawa Timur, Surabaya, Indonesia

Department of Chemical Engineering

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