Fertilizer Properties of Digestate from Anaerobic Co-digestion of Excessive Growing Submerged Macrophyte in the Southern Basin of Lake Biwa with Vegetable Waste from Farmers and Food Waste

2021 ◽  
Vol 34 (1) ◽  
pp. 1-9
Author(s):  
Naoki HATA ◽  
Ryosei KANEMOTO ◽  
Xin LIU ◽  
Masaaki FUJIWARA ◽  
Tatsuki TODA ◽  
...  
Keyword(s):  
Food Waste ◽  
Lake Biwa ◽  
Submerged Macrophyte ◽  
Vegetable Waste ◽  
Southern Basin

scholarly journals Is Anaerobic Digestive Effluent of Excessive Growing Submerged Macrophyte in the Southern Basin of Lake Biwa Applicable for Nutrients in Hydroponics?

2019 ◽  
Vol 32 (2) ◽  
pp. 65-74
Author(s):  
Naoki Hata ◽  
Xin LIU ◽  
Kaho Taguchi ◽  
Ryosei Kanemoto ◽  
Gen Yoshida ◽  
...  
Keyword(s):  
Lake Biwa ◽  
Submerged Macrophyte ◽  
Southern Basin

Echosounding observations of coverage, height, PVI, and biomass of submerged macrophytes in the southern basin of Lake Biwa, Japan

Limnology ◽  
2007 ◽  
Vol 8 (2) ◽  
pp. 95-102 ◽  
Author(s):  
Hiroki Haga ◽  
Taisuke Ohtsuka ◽  
Masanari Matsuda ◽  
Minako Ashiya
Keyword(s):  
Lake Biwa ◽  
Submerged Macrophytes ◽  
Southern Basin

scholarly journals Performance of Food Waste Feeding Pilot Plant Biodigester Operated with Identified Potential Substrate Properties

2021 ◽  
Vol 13 (3) ◽  
Author(s):  
Siti Hajar Yahaya ◽  
◽  
Syafi’ah Nadiah Mohd Said ◽  
Mohd Azhar Zain ◽  
Mohammed Shahrir Mohamad Zahari ◽  
...  
Keyword(s):  
Removal Efficiency ◽  
Food Waste ◽  
Pilot Plant ◽  
Cod Removal ◽  
Vegetable Waste ◽  
Process Technology ◽  
Biogas Yield ◽  
Cod Removal Efficiency ◽  
Waste Conversion ◽  
Coconut Meat

Anaerobic digestion has been proven as sustainable process technology for organic waste conversion into renewable bio-energy. This study was conducted to evaluate the performance of mono-digestion process for different types of food waste substrates using pilot scale anaerobic bio-digester (1200 L) in terms of biogas production and the chemical oxygen demand (COD) removal efficiency. The biochemical methane potential (BMP) test of rice waste (R), vegetable waste (VW) and coconut meat residue (CMR) were tested at initial volatile solid (VS) loading of 0.1631, 1.1690, 1.0059 g VS/L, respectively at fixed inoculum/substrate (I/S) ratio of 0.5. Further study conducted by using rice waste (R) in pilot plant anaerobic bio-digester (1200L) for 43 days to investigate the reactor performance in term of COD removal efficiency. Interestingly, inoculum used for this study performs very well and able to digest food waste. Results demonstrate that the maximum specific biogas yield (SBY) was observed from rice waste (R) at 0.0587 L/kg VS compared to other substrates. Specific biogas yield (SBY) of rice waste (R) was 16.01% and 11.92% higher than substrate vegetable waste (VW) and coconut meat residue (CMR) respectively. High COD removal efficiency of pilot plant bio-digester (up to 93 %) using rice waste (R) as sole substrate indicates a good performance of reactor in treating food waste. Conversion of food waste to biogas in pilot plant bio-digester is highly potential as one of the sustainable waste treatment technology.

scholarly journals Evolution of research related to fruit and vegetable waste in agrifood supply chains: analysing past publications seeking to identify a path to future research

2021 ◽  
Vol 12 (2) ◽  
pp. 486-505
Author(s):  
Patricia Guarnieri ◽  
Raiane Costa Coimbra Aguiar ◽  
Karim Marini Thome
Keyword(s):  
Best Practices ◽  
Supply Chains ◽  
Food Waste ◽  
Fruits And Vegetables ◽  
Future Research ◽  
Vegetable Waste ◽  
Fruit And Vegetable ◽  
Methods And Techniques ◽  
Social Environmental ◽  
Number Of Publications

Population growth, coupled with a growing demand for food, and its consequent waste and economic, social, environmental, and nutritional impacts, has drawn attention to global discussions related to such issues. In this context, the objective of this research was to provide an overview of studies addressing food waste, in particular, fruits and vegetables. To achieve this purpose, a systematic literature review was carried out, covering papers published in international journals from 2007 to 2017, available in the Science Direct database. The results point out the best practices to avoid food waste, as mentioned in the literature considered.  In addition, this study gathered information regarding the main characteristics of publications, such as the evolution of the number of publications per year; main methods and techniques used in research, and which journals excel at covering the theme. This paper may be useful to researchers and practitioners interested in this topic since it systematizes the knowledge related to food waste in fruit and vegetable supply chains.

scholarly journals The phytoplankton of the southern basin of Lake Biwa-ko

1960 ◽  
Vol 21 (3-4) ◽  
pp. 315-326
Author(s):  
Hisanao YAMAGUTI
Keyword(s):  
Lake Biwa ◽  
Southern Basin

scholarly journals From a Food Safety Prospective: The Role of Earthworms as Food and Feed in Assuring Food Security and in Valuing Food Waste

Insects ◽  
2020 ◽  
Vol 11 (5) ◽  
pp. 293 ◽  
Author(s):  
Doriana Eurosia Angela Tedesco ◽  
Marta Castrica ◽  
Aldo Tava ◽  
Sara Panseri ◽  
Claudia Maria Balzaretti
Keyword(s):  
Food Security ◽  
Food Safety ◽  
Risk Analysis ◽  
Food Waste ◽  
Waste Reduction ◽  
Animal Nutrition ◽  
Vegetable Waste ◽  
Fruit And Vegetable ◽  
Sustainable Solutions ◽  
Reduction Efficiency

The Sustainable Development Goals are a set of global goals that provide a framework for shared action. These goals also include the reduction of food waste and the definition of sustainable solutions to achieve food security. In this context, the aim of the study was to describe all phases of a pilot earthworm rearing project started in September 2017 and concluded in December 2017, together with a risk analysis carried out in order to evaluate if earthworms can represent a safe and sustainable protein source for human consumption and/or animal nutrition. The conversion rate, that in this study is more appropriately identified as the “waste reduction efficiency,” was also calculated in order to define the extent to which earthworm rearing can contribute to the objective of reducing fruit and vegetable waste (FVW). The results showed that earthworms can bio-convert 3750 kg of FVW in three months producing 1050 kg of compost and 82 kg of fresh earthworms with minimal environmental impact showing good waste reduction efficiency. Moreover, the risk analysis conducted on earthworm rearing highlighted a microbiological hazard after the freeze-drying phase. The critical control point was therefore identified, and, in order to guarantee the total food safety of the finished product, corrective action was taken consisting in the implementation of heat treatment—sterilization at 121 °C for 20 min. The results of microbiological analyses carried out on the earthworm meal after the sterilization treatment showed that the treatment guarantees microbiological safety for the consumer and ensures a balanced approach in relation to two main topics—public health and food-borne diseases. In conclusion, earthworm meal is a concentrate of valuable nutrients useful for human and animal nutrition and can also transform fruit and vegetable waste into a resource.

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