Research of Coagulation - Fenton Oxidation Treat the Corn Starch Wastewater

Abstract:

This paper is based on using coagulation--Fenton oxidation treat the corn starch wastewater, to determine the best conditions of coagulation and oxidation. Experimental results show that at the first coagulation stage, determining polyaluminium chloride (PAC) as the optimal coagulant and optimal dosing quantity of 10ml·L^-1, PAC and coagulant aid polyacrylamide (PAM) dosing quantity proportion is 2:2, pH=7, the temperature of 35 °C, COD_Cr removal effect is best; at Fenton oxidation stage, Fe²⁺/ H₂O₂ is 2:5, COD_Cr removal efficiency; At the second coagulation stage, PAC and PAM dosing quantity is 70 ml·L^-1, COD_Cr removal effectiency. The processing method has good treatment effect, it can reduce the COD_Cr, SS and chroma of wastewater, and eventually recycle the SS as amyloid protein and used for subsequent product production. Meanwhile, the processing method improves the economic benefit and has a high removal rate. The equipment is simple, and just cover a small area, it’s easy to operate, and doesn’t produce secondary pollution, etc.

• Periodical: Advanced Materials Research (Volumes 864-867)
• Pages: 1675-1679
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.864-867.1675
• Online since: December 2013
• Authors: Xiao Tong Liu, Sheng Gao Cheng, Yi Shi, Yin Wang
• Keywords: Coagulation, COD_Cr Removal Rate, Corn Starch Wastewater, Fenton Oxidation

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