Experimental Study on BDD Electrode Electrochemical Oxidation of TAIC Production Waste water
The boron-doped diamond(BDD)electrode electrochemical oxidation process was used to treat diluted wastewater from triallyl isocyanurate(TAIC)production in a new material plant,the effects of current density,initial pH and NaCl concentration on the treatment were investigated by single factor analysis.For nitrogenous organic wastewater with an initial CODCr of 3 500 mg/L,TN of 560 mg/L,and NH3-N of 0 mg/L,the optimal conditions for electrochemical oxidation are as follows:the current density was 60 mA/cm2,the initial pH was 7,and the added NaCl concentration was 2 000 mg/L.After electrochemical oxidation for 3 hours under these conditions,the CODCr of the wastewater was reduced to 47 mg/L,the TN was reduced to 101 mg/L,and the NH3-N was only 14 mg/L,which synchronously achieves the degradation and mineralization of organic pollutants,as well as the breakpoint chlorination denitrification after the conversion of organic nitrogen to ammonia nitrogen.Therefore,the BDD electrode electrochemical oxidation process is practical for the treatment of diluted wastewater from TAIC production.
BDD electrodeelectrochemical oxidationTAICfold point chlorination method
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