Many reagents are used as pH modifiers (like acids/ alkalis), dispersants (sodium silicate), depressants (cyanides, silicates, polymers, bisulphides), activators (copper sulphate) in the flotation process. Biological surface active reagent hold significant importance to process industry due to specificity in reaction, biodegradability, lesser toxicity, extensive applicability and possibility of their production from low cost, renewable raw materials like agro-wastes.
Agro-waste regenarării idea is wonderful, but must comply with requirements of pollution of water, oxygen and earth, the three factors of life .
In bio based material most critical part is the hydroxyl group at the surface that bonds with hydrogen & creates water molecule, most degrading agent f or fabrication of composites. Requisite chemical is the best solution to this problem & therefore the mentioned chemical treatment are must.
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