The fractionation in an industrial-scale continuous process of a protein hydrolysate obtained from tuna wastes has been proposed. A model based on membrane transport equations, mass balances and economic equations to calculate the main costs of the process was developed. This model was applied to the evaluation of the main technical, environmental and economic aspects of the process and their optimization. The basic cascade configuration resulted better than alternative options like the linear or dual cascades. The freshwater consumption was minimized to improve the environmental and economic performance of the process. Indeed, the implementation of a water recovery and reuse system was the most effective solution. This system was based on the installation of an additional tight nanofiltration stage that reduced the environmental impact of the process (avoiding the need of auxiliary freshwater streams) and increased its economic competitiveness.

已经提出了在工业规模的连续过程中从金枪鱼废物获得的蛋白质水解产物的分馏。建立了一个基于膜传输方程，质量平衡和经济方程的模型来计算过程的主要成本。该模型用于评估工艺的主要技术，环境和经济方面及其优化。基本级联配置的结果要好于线性或双级联等替代选项。淡水消耗量被最小化，以改善该工艺的环境和经济性能。实际上，实施水回收和再利用系统是最有效的解决方案。