CM3- synthesis of new PU filters doped with activated carbon based on banana stems to desalt sea water

Akram Hijazi

Akram Hijazi

Inventor in Beirut International Innovation Show BIIS 2021


The host polymers proposed is polyurethanes elastomer and foam modified by phosphorous oxide diol and polyphosphate diol and natural compounds, plants extract (bananas stems…)as reactive link to polymer and (elastomer) polyurethanes (foam) charged of zeolite or nanotube of carbon able to clean the waste water from the heavy metal.This filter can be recycled and used many times. This method can use for small scale also for industrial process. The host additive or reactive can be able to clean the water from different ionic metal and organic pollutants as dye and pesticides and charged to polymer, we can also change the cavity of polymer foam to be selective to different adsorbent.

Environmental pollution and its harmful effect on habitat have been studied intensively during last decades. Recently, the pollution of the environment by heavy metals such as cadmium, chromium, copper, lead, mercury and zinc and organic pollutants has received considerable attention worldwide, because of their toxicity such as nausea, convulsions, coma, renal failure, cancer and subtle effects on metabolism and intelligence. Several processes have been suggested to remove heavy metals from wastewaters. These processes include chemical precipitation, ion exchange, cementation, coagulation and flocculation, complexation, biosorption, and membrane processes. In our patent we use low cost adsorbents as a replacement for the expensive current methods. We have shown the efficiency of banana as a natural sorbent for the elimination of heavy metal from wastewater. We performed filters based of polymer in the presence of particles of the adsorbent based on the Lebanese plants and activated carbon to remove all type of pollutants from waste water: pesticides, heavy metals, organic pollutants and dyes…