Research on Flocculation of Protein-Bearing Wastewater by Alga Flocculant

A flocculation adsorption process was used to treat protein-bearing wastewater. The alga flocculant was made from seaweed and the treatment effects of various flocculants were compared. The experimental results show that the flocculants is used for treating the protein-bearing wastewater has good effects, while the amounts of the new flocculants is 15g/L and the pH is adjusted to the range of 2 to 4 at the room temperature, the highest efficiency of COD can be up to 69.1%. The flocculants can be applied to treat protein-bearing wastewater in food industry. The flocculated sediment can be recovered and have effective utilization of resources.