Study on coke powder bipolar three- dimensional electrode reactor applied to treat coking wastewater

In order to deeply treat the coking wastewater to reach the discharging standard,a coking wastewater deep treatment method with an application of a coke p owder bipolar three- dimensional electrode method was provided. The coke powder abandoned by the coking plant was applied to be the particle electrode in the three- di mensional electrode reactor,the anode was made of the titanium- base ruthenium and iridium electrode and the cathode was made of the stainless steel. The study results showed that under the optimum conditions when the electrolysis time was 60 min,the space between polar plates was 1. 0 cm,the electrical current density was 20 mA1 C m2 and the polar plate logarithm was 4 pairs,the coking wastewater sample after the biochemical treatment would be deeply treated with the coke powder bipolar three- di mensional electrode reactor. The main pollutants would be the volatile phenol,cyanide,CODcr,petroleum,NH+4- N and other indexs and would meet the limit discharging of coking wastewater discharging first grade standard stipulated in GB 13456- 1992"Pollutant Discharging Standard of lron and Steel Industry". And the hard to reach the dis charging standard of the coking wastewater could be solved.