|Type of industry
|In the paper industry, printing is only possible if the paper has been treated by coating deposit. The coating sauce contains polluants such as (latex, PVA, titanium dioxide...) and some pigments. The effluents produced are highly polluted and rejecting to a sewerage plant is strictly prohibited.
Retention of the polluting molecules and production of a clear water, which can be recycled or discharged to a sewerage plant.
– the filtrate, which constituted of clear water with traces of soluble agents, can be recycled or discharged to the sewerage plant.
– recycling of the concentrate to make new coating sauce.