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Phosphorus Mass Flows: A Planning Tool for Food Waste Management in Pathumthani Province, Thailand |
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| รหัสดีโอไอ | |
| Creator | 1. Manaporn Wongsoonthornchai 2. Bussarakam Thitanuwat |
| Title | Phosphorus Mass Flows: A Planning Tool for Food Waste Management in Pathumthani Province, Thailand |
| Publisher | Thai Society of Higher Education Institutes on Environment |
| Publication Year | 2564 |
| Journal Title | EnvironmentAsia |
| Journal Vol. | 14 |
| Journal No. | 1 |
| Page no. | 52-62 |
| Keyword | Phosphorus, Food waste, Mass balance, Waste management, Waste recycling |
| URL Website | http://www.tshe.org/ea/index.html |
| Website title | EnvironmentAsia |
| ISSN | 1906-1714 |
| Abstract | Phosphorus (P) shortage has direct impact on Thailandีs food security. Strategy focusing on increased resource efficiency and reduced P losses is becoming a challenge. P mass flows throughfood consumption system was performed in Pathumthani city. The purposes of this study are (1) to develop a P balance model using mass balance approach as a tool and (2) to identify and quantify the potential source for P recovery and recycle. Results of P balance showed that P of approximately 1,856 tons were entered to Pathumthani via food consumption system with 85% collection efficiency. Due to the insufficient wastes sorting, only 10% of P contained in food waste (FW) was utilized at composting center. The remaining P, amounted to 1,217 tons, was entirely ended up in landfill. This led to a clear conclusion that current FW practice is reducing the ability to recover P from waste since most of P was deposited in landfill. Therefore, recycling FW as well as P into a value-added product i.e. soil conditioner via composting process, the simplest alternative method for FW management, was recommended for this study. In addition, environmental and financial benefits gained from FW composting scenario were estimated. Recovery of about 1,217 tons per year into soil conditioning material, landfill emission reduction of 105 thousand tons carbon dioxide equivalent per year along with disposal cost saving of 6 million baht per year can be potentially achieved if FW was preliminary sorted at home. |
