Laca Amanda, Laca Adriana, Díaz Mario
Department of Chemical and Environmental Engineering, University of Oviedo, C/ Julián Clavería s/n., 33071, Oviedo, Spain.
Department of Chemical and Environmental Engineering, University of Oviedo, C/ Julián Clavería s/n., 33071, Oviedo, Spain.
J Environ Manage. 2017 Jul 15;197:351-359. doi: 10.1016/j.jenvman.2017.03.088. Epub 2017 Apr 10.
Agricultural wastes are some of the most emerging problems in food industries because of their disposal cost. However, it is also an opportunity for the bioeconomy society if new uses for these residual materials can be found. Eggshells, considered a hazardous waste by UE regulations, are discarded, amounting hundreds of thousands of tonnes worldwide. This egg processing waste is a valuable source material, which can be used in different fields such as fodder or fertilizer production. Additionally, this residue offers interesting characteristics to be used in other applications, like its employment as an environment-friendly catalyst. In the present review we provide a global view of eggshell waste uses as catalyst in different processes. According to reviewed researching works, a huge variety of added value products can be obtained by using this catalyst which emphasised the interest of further investigations in order to widen the possible uses of this cheap green catalyst.
由于处理成本，农业废弃物是食品工业中一些最突出的问题。然而，如果能为这些残余材料找到新用途，这对生物经济社会来说也是一个机遇。根据欧盟法规，蛋壳被视为有害废弃物而被丢弃，在全球范围内每年有数十万吨。这种鸡蛋加工废弃物是一种有价值的原料，可用于饲料或肥料生产等不同领域。此外，这种残渣还具有一些有趣的特性，可用于其他应用，比如用作环保催化剂。在本综述中，我们全面介绍了蛋壳废弃物在不同过程中用作催化剂的情况。根据所综述的研究工作，使用这种催化剂可以获得各种各样的增值产品，这突出了进一步研究的意义，以便扩大这种廉价绿色催化剂的可能用途。
