CAJ | 학술논문

将臭氧氧化法应用于干法腈纶废水中，通过实验考察了回流量、进气量以及针阀开度等对废水处理效果的影响。实验结果表明，当针阀完全打开，进气量为2 L/min，回流量为500 L/h时，处理效果最好，CODCr去除率可以达到28.5%，废水的可生化性也有所改善。对预处理和后处理两种方式对比研究表明，臭氧与H2O2联用后处理干法腈纶废水的效果明显好于预处理效果，也明显好于单独臭氧作用的处理效果，反应60 min后， CODCr可去除70.3%，CODCr降至80.59 mg/L。因此，臭氧氧化法尤其是臭氧与H2O2联用适合作为干法腈纶废水的后处理措施。
장취양양화법응용우간법정륜폐수중，통과실험고찰료회류량、진기량이급침벌개도등대폐수처리효과적영향。실험결과표명，당침벌완전타개，진기량위2 L/min，회류량위500 L/h시，처리효과최호，CODCr거제솔가이체도28.5%，폐수적가생화성야유소개선。대예처리화후처리량충방식대비연구표명，취양여H2O2련용후처리간법정륜폐수적효과명현호우예처리효과，야명현호우단독취양작용적처리효과，반응60 min후， CODCr가거제70.3%，CODCr강지80.59 mg/L。인차，취양양화법우기시취양여H2O2련용괄합작위간법정륜폐수적후처리조시。
The ozone oxidation process was used in dry-spun acrylic fiber wastewater treatment. The influences of back-flow, air input and degree of needle valve opening on the wastewater treatment efficiency were investigated. The experimental results show that, when the needle valve openes fully, the air input 2 L/min, the back-flow 500 L/h, the wastewater treatment efficiency is the best, the CODCr removal rate can reach 28.5%, and the wastewater biodegradability is also improved. The comparison research of pretreatment and post treatment shows that, the efficiency of ozone and H2O2 combination post-treatment is much better than pretreatment, and also much better than the treatment using ozone alone. When the reaction time is 60 min, 70.3%of CODCr can be removed, and the CODCr of effluent decreases to 80.59 mg/L. Therefore, the ozone oxidation process, especially the combination of ozone and H2O2, is suitable for the post treatment measure of dry-spun acrylic fiber wastewater.