CAJ | 학술논문

研究了二氧化氯消毒中水COD与二氧化氯最小投加量的定量关系及确保二氧化氯持续消毒能力的剩余剂量. 结果表明:在室温,COD为15~50 mg/L,浊度为1.00~6.37 NTU,大肠菌群数<106数量级的条件下,中水COD与二氧化氯最小投加量定量关系满足一元线性方程.为保证二氧化氯的持续消毒能力,消毒30 min水样的剩余二氧化氯质量浓度不能低于0.10 mg/L.二氧化氯浓度随时间的衰减规律符合一级反应动力学模型,且随二氧化氯浓度的减小,其衰减速率逐渐减小.
연구료이양화록소독중수COD여이양화록최소투가량적정량관계급학보이양화록지속소독능력적잉여제량. 결과표명:재실온,COD위15~50 mg/L,탁도위1.00~6.37 NTU,대장균군수<106수량급적조건하,중수COD여이양화록최소투가량정량관계만족일원선성방정.위보증이양화록적지속소독능력,소독30 min수양적잉여이양화록질량농도불능저우0.10 mg/L.이양화록농도수시간적쇠감규률부합일급반응동역학모형,차수이양화록농도적감소,기쇠감속솔축점감소.
The quantitative relationship between COD of chlorine dioxide used for disinfecting reclaimed water ,and chlorine dioxide minimum dosage,and the residual dosage of ensuring continuous disinfecting capacity of chlorine dioxide have been studied. The results show that under the following conditions:at room temperature,COD is 15-50 mg/L,turbidity 1.00-6.37 NTU,the numbers of colon bacillus<106,the quantitative relationship between reclaimed water COD and the minimum dosage of chlorine dioxide meets the unary linear equation. To ensure the continuous disinfecting capacity of chlorine dioxide,the mass concentration of the residual chlorine dioxide of the water sample which has been disinfected for 30 min,should not be lower than 0.10 mg/L. The rule that chlorine dioxide concentra-tion attenuates with time complies with the first level of reaction kinetics model. Furthermore ,with the decrease of chlorine dioxide concentration,its attenuation rate decreases gradually.