CAJ | 학술논문

为研究臭氧高级氧化技术对含硝基苯类化合物炸药废水的处理效果，采用四种不同组合工艺（旋转填料床（ RPB）-O3/H2 O2、RPB-O3、曝气反应装置（BR）-O3/H2 O2和 BR-O3），进行了模拟废水中硝基苯类化合物降解的对比性试验。结果表明，O3/H2 O2工艺对硝基苯类化合物表现出较强的降解性能，去除率可达99％，出水指标达到《污水综合排放标准》（ GB8978-1996）中硝基苯类化合物排放标准。在相同反应时间下，BR-O3/H2 O2和 BR-O3工艺对硝基苯类化合物去除率明显偏低。在 RPB-O3/H 2 O2和RPB-O3工艺中，硝基苯类化合物去除率随超重力因子和初始 pH 值的增加而增大，而随双氧水浓度和液体流量的增加呈先增大后降低的变化趋势。在臭氧浓度为50 mg·L-1，超重力因子为80，初始 pH 为10．5，双氧水浓度4．9 mmol·L -1和液体流量120 L·h -1的试验条件下，硝基苯类化合物去除效果较好。此条件下硝基苯类化合物的降解过程符合假一级反应动力学。
위연구취양고급양화기술대함초기분류화합물작약폐수적처리효과，채용사충불동조합공예（선전전료상（ RPB）-O3/H2 O2、RPB-O3、폭기반응장치（BR）-O3/H2 O2화 BR-O3），진행료모의폐수중초기분류화합물강해적대비성시험。결과표명，O3/H2 O2공예대초기분류화합물표현출교강적강해성능，거제솔가체99％，출수지표체도《오수종합배방표준》（ GB8978-1996）중초기분류화합물배방표준。재상동반응시간하，BR-O3/H2 O2화 BR-O3공예대초기분류화합물거제솔명현편저。재 RPB-O3/H 2 O2화RPB-O3공예중，초기분류화합물거제솔수초중력인자화초시 pH 치적증가이증대，이수쌍양수농도화액체류량적증가정선증대후강저적변화추세。재취양농도위50 mg·L-1，초중력인자위80，초시 pH 위10．5，쌍양수농도4．9 mmol·L -1화액체류량120 L·h -1적시험조건하，초기분류화합물거제효과교호。차조건하초기분류화합물적강해과정부합가일급반응동역학。
To study the treatment effect of wastewater containing nitrobenzene explosives with advanced oxidation technologies of ozone,the comparative experimental study on the degradation of nitrobenzene compounds in simulated waste water was carried out by four different combined processes[RPB(rotating packed bed)-O3 /H2 O2 ,RPB-O3 ,BR(bubbling reactor)-O3 /H2 O2 and BR-O3 ]. Results show that the RPB-O3 /H2 O2 process shows a strong oxidation capacity to nitrobenzene compounds,the removal rate of nitrobenzene compounds can reach 99% ,and wate indicators can meet the discharge standard of nitrobenzene compounds in integrated waste water discharge standard GB8978-1996. Under the same reaction time,the BR-O3 /H2 O2 and BR-O3 processes show low oxidation capacity to nitrobenzene compounds. In the RPB-O 3 /H2 O2 and RPB-O3 processes,the removal rates of the ni-trobenzene compounds enhance with increasing of the high gravity factor and initial pH value. With increasing the H 2 O2 concen-tration and liquid flow rate,the removal rate of nitrobenzene compounds first increases and then reduces. Under the experimental conditions of a nitrobenzene liquid flow rate of 120 L·h -1 ,a H2 O2 concentration of 4. 9 mmol·L -1 ,a high gravity factor of 80 and an initial liquid pH value of 10. 5,the removal effect of nitrobenzene compounds is good. And the degradation processes of nitrobenzene is in conformity with the pseudo-first-order reaction kinetics.