交变电磁场磁化PFS处理黄河水的实验研究

Experimental Investigation on Polymeric Ferric Sulfate( PFS) Magnetized by Alternating Electromangnetic Field to Treat Yellow River Water

磁化后的PFS(聚合硫酸铁)溶解液具有加速杂质颗粒沉降的性能。论文针对黄河水的浑浊度、COD Cr值指标,分析电压、电流强度、频率、磁化时间对PFS混凝机理以及水解性能的影响规律。在综合处理效果与经济因素下,磁化处理较未经磁化处理的混凝效果而言,加药量由7 mL减至4 mL、出水浑浊度由3.18 NTU降至0.27NTU、COD Cr值由35 mg/L降低至21 mg/L,可知,此项技术既降低了PFS的投资成本,又进一步提高了出水效果;并通过实验得出处理方式的最佳条件:电压100 V、电流0.7 A、频率为150 Hz和300 Hz、磁化时间60 s;各因素影响出水效果的主次关系为:频率>电压>电流>磁化时间。

The magnetized dissolved liquid has a performance of accelerating impurities particle sedimentation. The paper aimed to turbidity and CODcr value index of Yellow River. Analysis influence of voltage, current intensity, frequency, magnetized time to concreting performance of PFS. Considering multiple effects and economic determinants, magnetization compared with unmagnetization treatment, dosage from 7 mL to 4 mL, turbidity from 3.18 to 0.27 NTU, CODcr from 35 mg/L to 21 rag/L, so it is knowned that this technology not only reduces the PFS investment costs, but improves the effects of water; under the optimum conditions of this experiment such as voltage 100 V, current intensity 0.7 A, frequency 150 Hz and 300 Hz, magnetized time 60 s; The sequencing of influence on the water is frequency, voltage, current intensity, magnetized time.