Application of electrochemistry in the treatment of wastewater from the production of petrochemical catalysts
The ratio of chemical oxygen demand(COD)to ammonia nitrogen in the wastewater of petrochemical catalysts does not meet the conditions for biological treatment.The majority of the total nitrogen is ammonia nitrogen,and the salt content is high,with significant water quality fluctuations.In response to the characteristics of high ammonia nitrogen and high salt content,an electrochemical process is adopted for treatment.By designing two different water qualities with high and low limits,the feasibility of electrochemistry and its ability to cope with water quality fluctuations are verified.The results show that the electrochemical process is significantly effective in treating the wastewater of petrochemical catalysts,and as the current increases,the removal effects on COD,ammonia nitrogen,and total nitrogen are better.Treating the high and low concentrations of ammonia nitrogen with different currents,under the conditions of high concentration wastewater current≥500 A and low concentration wastewater current≥300 A,the COD,ammonia nitrogen,and total nitrogen in the wastewater can all meet the standards.
high ammonia nitrogenelectrochemistrypetroleum and chemical catalyst wastewater
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