Journal
SCIENCE OF THE TOTAL ENVIRONMENT
Volume 650, Issue -, Pages 1591-1598Publisher
ELSEVIER
DOI: 10.1016/j.scitotenv.2018.09.009
Keywords
Fertilizing potential; Resource-oriented sanitation; Sustainable sanitation; Waste treatment and disposal
Categories
Funding
- Science and Technology Support Program through the National Research Foundation of Korea (NRF) - Ministry of Science and ICT (MSIT) [NRF-2018K1A3A9A04000025]
- Korea Environmental Industry & Technology Institute (KEITI) - Republic of Korea Ministry of Environment (MOE) [ERL 2016000200007]
- Institute of Construction and Environmental Engineering at Seoul National University
- National Research Foundation of Korea [2018K1A3A9A04000025] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Among different approaches of treating source-separated urine and feces for agronomic utilization, the treatment by addition of nitrifying bio-seeds seems to be useful in increasing the fertilizing potential of these sanitation products by modifying and stabilizing the nitrogen profile. In this study, biological treatment was applied to an onsite resource-oriented sanitation system by adding nitrifying microorganism bio-seeds. Further, the potential of the sanitation products to be utilized as fertilizer for white radish (Raphanus sativus var. longipinnatus) cultivation was examined and compared with that of a commercial fertilizer. This was done through the measurement of nutrients released in soil samples as well as measurements of root mass, root length, and the measurement of accumulated nitrogen, sugar, and water content in plant tissues. Our results show that soil fertilized with a mixture of biologically treated urine and feces exhibits a statistically similar nutrient release trend to soil fertilized using a commercial fertilizer. Moreover, soil fertilized with a mixture of biologically treated urine and feces yielded larger white radishes with a higher sugar and water content, as well as a higher accumulation of nutrients in the plant tissues, than soil fertilized with a commercial fertilizer. (C) 2018 Elsevier B.V. All rights reserved.
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