| abstract |
The invention discloses a method for recovering sericin from tussah silkworm cocoon cooking waste water. Compared with the prior art, the present invention uses tannin to treat tussah wastewater and edible bile water to extract sericin in cocoon cooking wastewater, reduces protein content in water, thereby reduces COD and ammonia nitrogen in water, and relieves the pressure of subsequent water treatment It has the advantages of simple operation, good treatment effect and low cost. The extraction effect of sericin in tussah cocoon-boiled wastewater by tannin flocculation method is better than that of edible bile water. To achieve the purpose of resource utilization of sericin, the price of bile water is also relatively cheap and easy to obtain. |