Optimization of the conditions for degradation of hydrolyzed polyacrylamide using electro-coagulation

Zhang, Sitao; Han, Yanhe; Zhang, Xiaofei; Wu, Chuantao; An, Ran

doi:10.5004/dwt.2020.25028

Cited by 2 publications

(1 citation statement)

References 36 publications

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“…Therefore, how to remove the residual PAM in wastewater effectively has become a key concern in the field of environment. At present, the main methods for treating polymer-containing wastewater are physical treatment [5], biodegradation [6][7][8], chemical degradation [9][10] and combination method [11]. The use of an electrochemical method for the degradation of wastewater is characterized by many advantages, including flexible operation, simple equipment, clean and environmental protection, no secondary pollution, fast degradation reaction speed, mild reaction conditions and evident degradation effect of PAM.…”

Section: Introductionmentioning

confidence: 99%

Multivariate Parameter Optimization of PAM Wastewater Treatment by Ti/Ir–Ta Electrocatalysis via the Box-Behnken Design

Tian¹,

Li²,

Yang³

et al. 2022

Pol. J. Environ. Stud.

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In this study, the electrocatalysis method is used to degrade polyacrylamide (PAM) from wastewater. This method can degrade PAM rapidly and effectively, and it has no secondary pollution but has clean and environmental protection. The Box-Behnken design of response surfaces is used to optimize the PAM degradation experiment of wastewater. In accordance with the regression analysis results, the second-order polynomial fitting model is significant. The best conditions for the experiment are a current density of 58.8 mA/cm 2 , an electrode plate spacing of 3.07 cm, initial pH of the solution of 6.73 and reaction time of 2.225 h. The COD removal rate reaches 92.7%, and the predicted value is 92.24%. Therefore, electrocatalytic degradation of PAM has a good application prospect.

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