Dear Sir,
I am a lecturer in Nong lam University of Ho Chi Minh City. I am a biogas expert in Vietnam. I have many projects for treating the waste from the food factories. I would like to have Polyacrylamide, Cation / Anion / Nonion for treating the waste from cassava starch processing factories. Could you comment how to do (cost, how to test...). Many thanks for your information.
Best wishes