Tube membrane distillation (MD) integrated with a crystallization method is used in this study for the concurrent productions of pure water and salt crystals from concentrated single and mixed system solutions. The effects of concentrated Zn2+ and Ni2+ on performance in terms of membrane flux. permeate conductivity. crystal recovery rates. https://parisnaturalfoodes.shop/product-category/complet-cookie-oatmeal-raisin/