Application of pulsed power system for water treatment of the leachate

This paper deals with the water treatment of the leachate from sewage filled ground by a pulsed power technology. Leachate from sewage filled ground should be treated below regulation level of COD in order to prevent environmental pollution and usually treated by a chemical method. Among the pollutants mixed in the leachate, chemical compounds of benzene series are known to be difficult to break down, and need to use high cost treat methods. The treatment of the benzene compounds by high power pulsed power supply was studied. For the high-rate, cost-effective treatment of leachate, pulsed power supply should have high repetition rates and require switching devices of long lifetime. In order to meet the above demands, pulsed power generator based on semiconductor switches using IGBTs as primary switches were developed. The experimental results verified that benzene compounds can be treated effectively by high voltage electric pulses, and this fact indicates that the treatment method by pulsed power source is a promising substitute.

[1]  S. Shenderey,et al.  IGBT Stacks Based Pulse Power Generator for PIII&D , 2005, 2005 IEEE Pulsed Power Conference.

[2]  Dan M. Goebel.  High power modulator for plasma ion implantation , 1994 .

[3]  R. J. Adler,et al.  Thyratron modulators in plasma source ion implantation , 1995, Digest of Technical Papers. Tenth IEEE International Pulsed Power Conference.

[4]  G.H. Rim,et al.  Development of 60kV Pulse Power Generator Based on IGBT Stacks for Wide Application , 2006, Conference Record of the 2006 Twenty-Seventh International Power Modulator Symposium.

[5]  André Anders,et al.  Handbook of plasma immersion ion implantation and deposition , 2004 .

[6]  Jih-Sheng Lai,et al.  Solid state Marx Generator using series-connected IGBTs , 2004, IEEE Transactions on Plasma Science.

[7]  J. Genovese,et al.  BEAM SWITCH TUBE MODULATOR TECHNOLOGY FOR PLASMA ION IMPLANTATION BROAD INDUSTRIAL APPLICATIONS , 1993, Ninth IEEE International Pulsed Power Conference.

[8]  Dong-Wook Yoo,et al.  Solid state Marx generator using series-connected IGBTs , 2005, Conference Record of the Twenty-Sixth International Power Modulator Symposium, 2004 and 2004 High-Voltage Workshop..

[9]  S. Shenderey,et al.  Semiconductor switches based pulse power generator for plasma source ion implantation , 2004, Conference Record of the Twenty-Sixth International Power Modulator Symposium, 2004 and 2004 High-Voltage Workshop..