Manufacturing of Solid Substrates Using Waste Paper Fiber and Biochar

Hyun-Seo Cho; Yong Joo Sung

doi:10.7584/JKTAPPI.2024.2.56.1.30

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2024 Vol.56, Issue 1 Preview Page Next Page

Research Article

Manufacturing of Solid Substrates Using Waste Paper Fiber and Biochar 재활용 종이 자원과 바이오차로 제조된 고형배지의 특성

28 February 2024. pp. 30-37

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Abstract

The solid substrate cultivation methods for facility cultivation involve supplying nutrient solutions to the supporting substrate that sustains the plant roots, and traditional solid substrates such as coconut coir, rockwool, and perlite are commonly used. However, there have been issues related to environmental problems from disposal and instability in raw material supply. This study evaluated the feasibility of utilizing domestically generated waste paper and biochar as raw materials for the solid substrates. It has been observed that waste paper fibers exhibit a pH level close to neutral, along with suitable electrical conductivity (EC) characteristics and high hydrophilicity, making them applicable as raw material for the solid substrate. Solid substrates manufactured using waste paper fibers show a comparable level of water holding capacity to conventional cocopeat substrates, with slightly lower drainage characteristics. When different biochars were applied in the production of solid substrates, the use of wood biochar was found to increase water holding capacity, while the application of rice husk biochar was confirmed to enhance the drainage properties of ONP solid substrates. The results from this study could provide the foundational data for the development of alternative technologies in solid substrate cultivation for future facility cultivation.

Keywords

Solid substrate

waste paper

cocopeat

biochar

water holding capacity

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Information

Publisher :Korea Technical Association of The Pulp and Paper Industry
Publisher(Ko) :한국펄프종이공학회
Journal Title :Journal of Korea TAPPI
Journal Title(Ko) :펄프종이기술
Volume : 56
No :1
Pages :30-37
Received Date : 2024-02-02
Revised Date : 2024-02-17
Accepted Date : 2024-02-19
DOI :https://doi.org/10.7584/JKTAPPI.2024.2.56.1.30

Journal of Korea TAPPI ISSN:0253-3200(Print) 펄프종이기술

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