University of Oulu

Kuokkanen, M., Tuomisto, J., Prokkola, H., Tervonen, P., and Lassi, U. (2019). "The utilization of industrial by-products as soil conditioners and fertilizers in non-food potato production ," BioRes. 14(3), 7299-7315

The utilization of industrial by-products as soil conditioners and fertilizers in non-food potato production

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Author: Kuokkanen, Matti1,2; Tuomisto, Jussi3; Prokkola, Hanna1;
Organizations: 1University of Oulu, Research Unit of Sustainable Chemistry, P.O. Box 3000, FI - 90014, Oulu, Finland
2University of Oulu, Research Unit of Industrial Engineering and Management, P.O. Box 3000, FI - 90014, Oulu, Finland
3Potato Research Institute, Alapääntie 104, FI - 61400, Ylistaro, Finland
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 0.8 MB)
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Language: English
Published: North Carolina State University, 2019
Publish Date: 2019-08-13


Peatlands require soil improvement to be suitable for cultivation. Creating eco-friendly and cost-effective carbon sinks in peatlands originated from peat production has several benefits. For this purpose various valuable biomass can be used by utilizing industrial by-products also as soil conditioners and fertilizers. For example, the addition of such materials has potential to transform peat bogs, which otherwise would slowly release methane, into productive cultivated areas. The rehabilitation of peat bogs from unused land into various agricultural and forestry areas is also a viable business activity. The examined industrial by-products could have many agricultural applications in non-food potato production, wherein monoculture causes problems such as condensed soil, lost humus or soil organic matter, and reduced nutrient retention capacity, leading to increased leaching of nutrients and negative impacts on the environment. Five industrial by-products were examined in this study as soil conditioners and fertilizers: fiber sludge, biocarbon, hygienic biodige state, paper mill sludge, and gypsum waste. Based on the results of a nutrient content analysis, hygienic biodigestate and fiber sludge were the most effective fertilizers.

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Series: Bioresources
ISSN: 1930-2126
ISSN-E: 1930-2126
ISSN-L: 1930-2126
Volume: 14
Issue: 3
Pages: 7299 - 7315
Type of Publication: A1 Journal article – refereed
Field of Science: 116 Chemical sciences
222 Other engineering and technologies
Funding: The authors thank Adj. Prof. (Emer.) Olli Mäentausta from Mfibrils Ltd, M.Sc. (Tech.) Pipsa Maikkula from Stora Enso Ltd Veitsiluoto, CEO Janne Huovinen from Haarasillan Ekoparkki Ltd, and PhD (Tech.) Wiljami Kinnunen from Gasum Ltd for soil conditioner delivery and funding. The authors also wish to thank CEO Sakari Kiviniemi from Rakeistus Ltd, along with CEO Kristian Gullsten and M.Sc. (Tech.) Satu Pekkala from Napapiirin Energia ja Vesi for their co-operation and providing funding. Additionally, the authors would like to thank Adj. Prof. (Emer.) Toivo Kuokkanen and Ph.D. (Tech.) Ville Kuokkanen from Oulu University for their scientific co-operation, project planning, and procurement of funding; M.Sc. Anna Sipilä from the Potato Research Institute for project planning and her co-operation; and M.Sc. (Tech.) Kyösti Rajaniemi from Oulu University for his co-operation. The authors are also grateful to the Center for Economic Development, Transport, and the Environment for the main funding of the project.
Copyright information: © 2019 The authors.