A Review of Poultry Waste-to-Wealth: Technological Progress, Modeling and Simulation Studies, and Economic- Environmental and Social Sustainability

The poultry industry has met more than one-third of the human demand for meat and all eggs during past several decades, it also been recognized as a very efficient sector in livestock industry. However, increasing production led to massive generation various wastes, which are great threat climate change, environmental safety, health. Traditionally, landfilling burning most frequently used techniques treating waste. With rich contents organic matter, nutrients, keratin, waste can be applied produce value-added products that many sectors by using variety emerging technological processes. Considering generation, profound pollution, wide range applications waste, this paper categorizes litter manure feather mortality abattoir hatchery This reviews modeling simulation studies on waste-to-wealth, six current or processes waste-to-wealth described: anaerobic digestion, pyrolysis, gasification, hydrolysis, enzymatic treatment, microbial conversion. Finally, economic, environmental, social impacts discussed. For further research, we suggest focus projects different regions, behavior strategy stakeholders, policymaking commercialized application technologies.