Experimental Study on Water Quality Stabilization Using the Low Frequency Electromagnetic Treatment of Reclaimed Water
CHI Jinbao1,ZHAO Min2,CANG Daqiang1,ZHANG Xuefeng3,CHANG Ruiqing2
1. Department of Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China;2. Technology Center, Baotou Iron & Steel Group, Baotou 014010, Nei Monggol， China;3. School of Mathematics and Physics, Inner Mongolia University of Science and Technology,Baotou 014010, Nei Monggol， China
Abstract：According to scaling and corrosion problems during operation process of circulating cooling water, a water quality stabilization experiment was conducted on treatment reclaimed water with low frequency gradient electromagnetic field. The effects of electromagnetic treatment on scale and corrosion inhibition were mainly investigated. The experimental results show that scaling and corrosion problems on nonheattransfer surface could be controlled significantly. The fouling deposition rate and the corrosion rate were reduced to 35.02 mg/(cm2·month) and 0.136 mm/a under dynamic simulation test from 56.85 mg/(cm2·month) and 0.834 mm/a under static test respectively, and were both keeping decreasing. But scaling problem on heattransfer surface was serious, the fouling deposition rate was 184.59 mg/(cm2·month), but the corrosion rate could be controlled significantly, which was 0.158 mm/a. Through XRD(XRay Diffraction) analysis, it was found that the massive Mg2+ in reclaimed water could inhibit the scale inhibition of electromagnetic treatment, while promoting the formation of compact MgFe2O4 protective film on iron surface under electromagnetic treatment, which is against corrosion.
迟金宝;赵民;苍大强;张雪峰;常瑞卿. 低频电磁场处理中水的水质稳定试验研究[J]. 钢铁, 2009, 44(8): 97-0.
CHI Jinbao;ZHAO Min;CANG Daqiang;ZHANG Xuefeng;CHANG Ruiqing. Experimental Study on Water Quality Stabilization Using the Low Frequency Electromagnetic Treatment of Reclaimed Water. Iron and Steel, 2009, 44(8): 97-0.
2009, Vol. 44 
