Pretreatment of Herbicides Production Wastewater by Spherical Micro-Electrolysis Media

Abstract:

[Objective] The aim is to study the pretreatment effect of herbicides production wastewater by spherical micro-electrolysis media. [Method] Spherical micro-electrolysis media is preferred for the pretreatment of herbicides production wastewater and effects of PH, amount of media and reaction time on the pretreatment was investigated. The change of pre- and post-processing herbicides production wastewater was determined; the operation cost was also analyzed. [Result]The optimum reaction conditions are as follows: the PH was 3; the amount of media was 1.0kg/L wastewater; and the reaction time was 3.0h. Under the optimum reaction conditions, the removal of COD, Chromaticity and TP reached 26.3%, 86.4% and 95.6% respectively; BOD5/COD varied from 0.10 to 0.35, and the biodegradability was improved greatly; the cost of pretreatment was 1.0yuan/t, and it was lower than that of electrolysis. [Conclusion] The pretreatment of herbicides production wastewater by spherical micro-electrolysis media has good effect, low cost and no soiling hardening, so it provides a good foundation for subsequent biological treatment.

• Periodical: Applied Mechanics and Materials (Volumes 295-298)
• Pages: 1079-1083
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.295-298.1079
• Online since: February 2013
• Authors: Ling Zhang, Jing Liang Xie
• Keywords: Chemical Oxygen Demand (COD), Chromaticity, Herbicides Production Wastewater, Spherical Micro-Electrolysis Media, TP

References

[1] Lu Xuemei, Chen Lei, Liu Zhijun, et al. Pretreatment of imidacloprid pesticide wastewater by a combined process of dephosphorization calcium and alkaline hydrolysis& micro-electrolysis[J], Chinese Journal of Environmental Engineering, 2008, 12 (2): 1610-1612.

[2] Lu Xuemei, Chen Lei, Xu Yanhua, Treatment of high-concentration cyanide-containing pesticide wastewater with a combined process of conplexation precipidition and chemical oxidation[J], Chinese Journal of Environmental Engineering, 2009, 3(3): 392-394.

[3] Ye Bei-rong, Yao Ri-sheng, BI Xia-ling, Treatment technologies of wastewater from pesticide production and research progress thereof [J], Industrial Water & Wastewater, 2009, 40(4): 23-26.

[4] SUN Hua, Hong Ying, Gao Ting-yao ZHOU Zeng-yan. A test on the treatment of wastewater from Dye-Stuff Production by Internal Electrolysis[J], Industrial Water & Wastewater, 2001, 32(3): 22-25.

[5] CHAI Xiao-li, GAO Xuguang, CHEN Jie. Inner electrolysis coagulating precipitation-anaerobic-aerobic technology to treat medical wastewater[J], Environmental Science and Technology, 2000, 91(3): 33-34.

[6] Wang YongGuang. Treatment of fomesafen herbicide wastewater [J], Journal of Yangzhou University (Natural Science Edition), 2005, 8(3): 74-77.

[7] Yang Ying, et al. Study on Ultrasonic Degradation of Phenol Wastewater [J], Journal of Anhui Agriculture Siences, 2010, 38(34): 19454-19455, 19490.

[8] ZOU W S, ZHANG JL, LIU L G, ET AL. Effect research of immobilized algae-bacteria removal ammonia nitrogen of aquaculture wastewater and proposed model[J], Agricultural Science& Technology, 2010, 11(5): 117-120.

[9] CHEN Cai-yun, Zhang Qian,. The current situation of high concentration organic wastewater treated by Catalytic wet oxidation method and it's prospect[J], Inner Mongolia Agricultural Science and Technology, 2011(5): 15-16.