Sustainability assessment of symbiotic processes for the reuse of phosphogypsum
Embargo Lift Date
MetadataShow full item record
The conversion of by-products to resources is a novel approach for enhancing circular economy through increasing the lifecycle of resources, however, it does not always achieve sustainability outcomes. A life cycle assessment has been conducted to assess the economic and environmental implications of the conversion of phosphogypsum, which is a by-product from phosphoric acid manufacture, to useful resources such as paper and fertilizer. The current research found that the phosphogypsum based paper and fertilizer are neither environmentally nor economically better than conventional products due to the raw materials used that leads to higher environmental impact and economic cost. However, phosphogypsum based products offers some social benefits such as additional employment creation and enhanced intergenerational equity. Further investigation into chemical process design in terms of reagent selection for precipitation reactions is needed to achieve the economic and environmental feasibility of the products based on these by-products.
Showing items related by title, author, creator and subject.
LivestockPlus - The sustainable intensification of forage-based agricultural systems to improve livelihoods and ecosystem services in the tropicsRao, I.; Peters, M.; Castro, A.; Schultze-Kraft, R.; White, D.; Fisher, M.; Miles, J.; Lascano, C.; Blümmel, M.; Bungenstab, D.; Tapasco, J.; Hyman, G.; Bolliger, A.; Paul, B.; Van Der Hoek, R.; Maass, B.; Tiemann, T.; Cuchillo, M.; Douxchamps, S.; Villanueva, C.; Rincón, A.; Ayarza, M.; Rosenstock, T.; Subbarao, G.; Arango, J.; Cardoso, J.; Worthington, M.; Chirinda, N.; Notenbaert, A.; Jenet, A.; Schmidt, A.; Vivas, N.; Lefroy, R.; Fahrney, K.; Guimarães, E.; Tohme, J.; Cook, Simon; Herrero, M.; Chacón, M.; Searchinger, T.; Rudel, T. (2015)© 2015. As global demand for livestock products (such as meat, milk and eggs) is expected to double by 2050, necessary in-creases to future production must be reconciled with negative environmental impacts that livestock ...
Socio-economic and agricultural potential of cattle manure application for crop production in UgandaMuhereza, Innocent (2012)Declining soil fertility coupled with minimal nutrient inputs have contributed to low crop yields in sub-Saharan Africa; a major constraint to food security and economic development in Uganda. The use of cattle manure in ...
Methodology for capturing environmental, social and economic implications of industrial symbiosis in heavy industrial areasKurup, Biji R. (2007)Industrial operations have been attributed to causing social and environmental problems such as: acid rain; greenhouse gas emissions, air, water and soil pollution; plus health problems to neighbourhood communities. With ...