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本文就电气工程与自动化技术发展内涵、特征出发,探讨了其系统应用状况,并以污水处理生产实践为例研究了电气工程科学改造趋势、策略,对提升电气工程技术自动化应用水平,创设显著效益,实现全面发展,有积极有效的促进作用。 相似文献
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Degradation of polyvinyl-alcohol wastewater by Fenton's reagent: Condition optimization and enhanced biodegradability 总被引:3,自引:0,他引:3
The pretreatment of refractory polyvinyl-alcohol (PVA) wastewater with low value of CODCr by Fenton’s reagent was investigated to enhance the biodegradability. The effects of operating conditions such as pH of the
solution, Fe2+ dosage, H2O2 dosage, reaction time and initial PVA concentration on the removal efficiency of CODCr were discussed. It is demonstrated that the optimum value of pH for removal of CODCr is 5 and the most suitable dosages of H2O2 (2%) and FeSO4 (10 mg/L) are 5% and 8.0%, respectively. When the initial CODCr value of the PVA water is 760 mg/L, the favorable reaction time is 110 min. Under these optimum conditions, the removal ratio
of CODCr is 58.6%–61.4%, and the value of biodegradability (CODB/CODCr) increases markedly from 8.9%–9.7% to 62.6%–68.3%. 相似文献
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对河南能源新乡中新化工乙二醇分析化验系统在原始开车中出现的问题进行了汇总,并对系统进行改造,改造后不仅解决了分析仪器数据出现误差的现象,而且节约了原材料的消耗,降低了员工的劳动强度,给公司带来了巨大的经济效益。 相似文献
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