| Title | Recycling of food waste to produce chicken feed and liquid fertiliser |
|---|---|
| ID_Doc | 23240 |
| Authors | Siddiqui, Z; Hagare, D; Jayasena, V; Swick, R; Rahman, MM; Boyle, N; Ghodrat, M |
| Title | Recycling of food waste to produce chicken feed and liquid fertiliser |
| Year | 2021 |
| Published | |
| Abstract | Most of the food waste (FW) generated by commercial activities and the majority of household FW is collected as part of general waste, which is either incinerated or landfilled. There is an increasing interest in the collection of FW as a separate waste stream and use it for the production of compost or recovery of energy through anaerobic digestion (AD) or pyrolysis. This study focused on using FW to produce chicken feed and liquid fertiliser (CFLF). The food waste samples were collected from food related businesses such as service club, cafe acute accent , restaurant, bakery and supermarket. The CFLF process was used to produce chicken feed pellets containing 19% of protein content, which is within the range of 16 to 22% of most commercial chicken feed pellets and within the National Research Council (NRC) recommended range of 15 to 23%. The liquid extract derived from CFLF process had high nutrient concentrations similar to those present in the feed solution used in hydroponic systems. Hence, the liquid extract from CFLF can be used to replace the commercial liquid fertiliser used in hydroponic systems. Environmental impact analysis of CFLF process using GaBi life cycle analysis (LCA) software indicated that the CFLF process can yield environmental credits for 15 out of 19 categories of impacts considered in the analysis. The measured environmental credits were significantly higher than the other disposal options such as, anaerobic digestion (AD), incineration and landfill. |
| http://manuscript.elsevier.com/S0956053X21003512/pdf/S0956053X21003512.pdf |
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