European Journal of Sustainable Development Research

European Journal of Sustainable Development Research, 2020 - Volume 4 Issue 4, Article No: em0128
https://doi.org/10.29333/ejosdr/8209

Published Online: 25 Apr 2020

Views: 486 | Downloads: 239

Ulva sp. (green seaweed) often proliferates explosively and piles up in shallows. This phenomenon is called “green tide,” caused by increased nutrient flow into an enclosed sea area. Although green tide is one of the environmental problems in coastal areas, Ulva sp. can be regarded as carbon-neutral and therefore can serve as an abundant feedstock for renewable energy. Methane fermentation is one of the suitable techniques for converting such seaweed into energy. Digestate from methane fermentation is normally used as fertilizer; however, it is ends up being treated as wastewater due to limited spaces in urban areas. This paper proposes that the digestate from methane fermentation using mixed biomass (Ulva sp. and food waste) can be applied to the cultivation of Pyropia yezoensis (edible laver seaweed, nori in Japanese), which has recently suffered from decolored phenomena because of decreasing nutrients. The absorption of nutrients and the color recovery of nori were investigated in laboratory-scale experiments based on comparison with artificial seawater. The results highlight that the significant absorption of nutrients and color recovery occurred because of digestate utilization, indicating its positive effects on decolored nori. In addition, the experiments found that not only NH₄-N, but also other substances such as trace metal related to Ulva sp. can influence such effects. The findings clearly indicate that digestate can be used in the sea and that the suggested multiple uses of digestate would increase the value of digestate.

methane fermentation digestate green seaweed food waste seaweed cultivation

• Chen, H., Osman, A. I., Mangwandi, C., & Rooney, D. (2019). Upcycling food waste digestate for energy and heavy metal remediation applications. Resources, Conservation & Recycling: X, 3, https://doi.org/10.1016/j.rcrx.2019.100015
• Czekała, W., Lewicki, A., Pochwatka, P., Czekała, A., Wojcieszak, D., Jóźwiakowski, K., & Waliszewska, H. (2020). Digestate management in polish farms as an element of the nutrient cycle. Journal of Cleaner Production, 242, https://doi.org/10.1016/j.jclepro.2019.118454
• Fujiyoshi, E., Kobayashi, M., & Tamashiro, S. (2014). Experimental condition of nori cultivation, in Fujiyoshi, E., Tamaki, M., Kobayashi, M., Aritaki, M. (Eds), Characteristics of Nori Cultivars, (pp. 24-32). Seikai National Fisheries Research Institute, Fisheries Research Agency, Nagasaki (in Japanese).
• Hori, Y., Mochizuki, S., & Shimamoto, N. (2008). Relationship between the discoloration of cultivated Porphyra thalli and long-term changes of the environmental factors in the northern part of Harima-Nada, eastern Seto Inland Sea, Japan. Bulletin of the Japanese Society of Fisheries Oceanography, 72, 107-112 (in Japanese with English abstract).
• Isagi, H., & Isobe, T. (2006). Effect on metal elements on fading laver in the Ariake Sea, Bunseki Kagaku, 55, 999-1002 (in Japanese with English abstract). https://doi.org/10.2116/bunsekikagaku.55.999
• Ishii, M., Hasegawa, K., & Matsuyama, Y. (2008). Environmental factors influencing Porphyra (Nori) farming in Tokyo Bay: Long-term changes in inorganic nutrients and recent proliferation of diatoms. Bulletin of the Japanese Society of Fisheries Oceanography, 72(1), 22-29 (in Japanese with English abstract).
• Japanese Industrial Standards (2000). JIS K 0400-42-60, Water quality−Determination of ammonium−Part 1: Manual spectrometric method.
• Japanese Industrial Standards (2011). JIS K 0104, Methods for determination of nitrogen oxides in flue gas.
• Japanese Industrial Standards (2013). JIS K 0102, Testing methods for industrial wastewater.
• Kakinuma, M., Nakamoto, C., Kishi, K., Coury, D. A., & Amano, H. (2017). Isolation and functional characterization of an ammonium transporter gene, PyAMT1, related to nitrogen assimilation in the marine macroalga Pyropia yezoensis (Rhodophyta). Marine Environmental Research, 128(3), 76-87. https://doi.org/10.1016/j.marenvres.2016.08.007
• Kawamura, Y., Kuno, K., & Yokoo, K. (2011). Present of Fertilizing in the Ariake Sea off Saga Prefecture (Material). Bulletin of Saga Prefectural Ariake Fisheries Research and Development Center, 25, 81-87 (in Japanese).
• Kotani, M. (2000). Numeraly indication of Fading in Cultured Porphyra lava. Bulletin of Fukuoka Fisheries Marine Technology Research Center, 10, 49-50 (in Japanese).
• Kuroda, K., Keno, Y., Nakatani, N., & Otsuka, K. (2014). An Integrated Feasibility Study of an Anaereobic Digestion Plant using Marine Biomass and Food Waste. Journal of Ocean and Wind Energy, 1, 177-184.
• Kuroda, K., Nakatani, N., & Otsuka, K. (2016). Exergy analysis of an anaerobic digestion system for marine biomass utilisation. International Journal of Exergy, 20(2), 236-253. https://doi.org/10.1504/IJEX.2016.076865
• Kuroda, K., Nishikawa, R., & Otsuka, K. (2017). Feasibility Study of Continuous Anaerobic Digestion with Marine Biomass. Journal of Japan Society of Energy and Resources, 38, 28-34 (in Japanese with English abstract). https://doi.org/10.24778/jjser.38.6_28
• Liu, D., Keesing, J. K., Xing, Q., & Shi, P. (2009). World’s largest macroalgal bloom caused by expansion of seaweed aquaculture in China. Marine Pollution Bulletin, 58(6), 888-895. https://doi.org/10.1016/j.marpolbul.2009.01.013
• MAFF (Ministry of Agriculture, Forestry and Fisheries). (2020). Statistics about fishery production in Japan. Retrieved on 29 January 2020 from https://www.maff.go.jp/j/tokei/kouhyou/gyogyou_seigaku/index.html#r
• Morand, P., & Briand, X. (1996). Excessive Growth of Macroalgae: A Symptom of Environmental Disturbance. Botanica Marina, 39, 491-516. https://doi.org/10.1515/botm.1996.39.1-6.491
• Nguyen, K., Kitaya, Y., Xiao, L., Endo, R., & Shibuya, T. (2013). Selection of microalgae suitable for culturing with digestate from methane fermentation. Environmental Technology, 34, 2039-2045. https://doi.org/10.1080/09593330.2013.828093
• Nguyen, K., Kitaya, Y., Xiao, L., Endo, R., & Shibuya, T. (2015). Microalgae Culture with Digestate from Methane Fermentation – Effects of Digestate Concentrations and pH on the Growth of Euglena gracilis. Eco-Engineering, 27, 7-11.
• Nguyen, T. M. L., Lin, C. Y., & Lay, C. H. (2019). Microalgae cultivation using biogas and digestate carbon sources. Biomass and Bioenergy, 122, 426-432. https://doi.org/10.1016/j.biombioe.2019.01.050
• Praveen, P., Guo, Y., Kang, H., Lefebvre, C., & Loh, K. C. (2018). Enhancing microalgae cultivation in anaerobic digestate through nitrification. Chemical Engineering Journal, 354, 905-912. https://doi.org/10.1016/j.cej.2018.08.099
• Sakaguchi, K., Ochiai, N., Park, C. S., Kakinuma, M., & Amano, H. (2003). Evaluation of discoloration in harvested laver Porphyra yezeoensis and recovery after treatment with ammonium sulfate enriched seawater. Nippon Suisan Gakkaishi, 69(3), 399-404 (in Japanese with English abstract). https://doi.org/10.2331/suisan.69.399
• Svehla, P., Radechovska, H., Pacek, L., Michal, P., Hanc, A., & Tlustos, P. (2017). Nitrification in a completely stirred tank reactor treating the liquid phase of digestate: The way towards rational use of nitrogen. Waste Management, 64, 96-106. https://doi.org/10.1016/j.wasman.2017.03.041
• Tada, K., Fujiwara, M., & Honjo, T. (2010) Water quality and Nori (porphyra) culture in the Seto Inland Sea. Bunseki Kagaku, 59(11), 945-955 (in Japanese with English abstract). https://doi.org/10.2116/bunsekikagaku.59.945
• Takagi, S., Shimizu, Y., Kusaka, K., Fujisawa, T., Fujiwara, M., Watanabe, Y., & Fujiwara, T. (2012). Recovery of nori Porphyra color by uptake of nutrients supplied intermittently from rivers. Nippon Suisan Gakkaishi, 78(2), 246-255 (in Japanese with English abstract). https://doi.org/10.2331/suisan.78.246
• Vaneeckhaute, C., Darveau, O., & Meers, E. (2019). Fate of micronutrients and heavy metals in digestate processing using vibrating reversed osmosis as resource recovery technology. Separation and Purification Technology, 223, 81-87. https://doi.org/10.1016/j.seppur.2019.04.055
• Veronesiv, D., D’Imporzano, G., Salati, S., & Adani, F. (2017). Pre-treated digestate as culture media for producing algal biomass. Ecological Engineering, 105, 335-340. https://doi.org/10.1016/j.ecoleng.2017.05.007
• Watanabe, S., Kuroda, K., Nakatani, N., & Otsuka, K. (2014). A study for effective utilization system of digestive sludge from methane fermentation using marine biomass. Proceedings of OCEANS 2014 MTS/IEEE Conference, 8 April, Taipei International Convention Center, IEEE Catalog Number CFP14OCF-POD, 536-540. https://doi.org/10.1109/OCEANS-TAIPEI.2014.6964456
• Yamamoto, T. (1992). Constant Uptake of Ammonium-N and Nitrate-N by Porphyra yezoensis Thalli. Journal of the Faculty of Applied Biological Science -Hiroshima University, 31, 155-159 (in Japanese).
• Yang, S., Xu, J., Wang, Z. M., Bao, L. J., & Zeng, E. Y. (2017). Cultivation of oleaginous microalgae for removal of nutrients and heavy metals from biogas digestates. Journal of Cleaner Production, 164, 793-803. https://doi.org/10.1016/j.jclepro.2017.06.221
• Zhang, J., Nagahama, T., Ohwaki, H., Ishibashi, Y., & Fujita, Y. (2004). Analytical approach to the discoloration of edible laver “nori” in the Ariake Sea. Analytical Science, 20, 37-43. https://doi.org/10.2116/analsci.20.37
• Zhou, J., Wu, Y., Pan, J., Zhang, Y., Liu, Z., Lu, H., & Duan, N. (2019). Pretreatment of pig manure liquid digestate for microalgae cultivation via innovative flocculation-biological contact oxidation approach. Science of the Total Environment, 694, https://doi.org/10.1016/j.scitotenv.2019.133720
• Zhu, S., Feng, S., Xu, Z., Qin, L., Shang, C., Feng, P., Wang, Z., & Yuan, Z. (2019). Cultivation of Chlorella vulgaris on unsterilized dairy-derived liquid digestate for simultaneous biofuels feedstock production and pollutant removal. Bioresource Technology, 285, 121353. https://doi.org/10.1016/j.biortech.2019.121353

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