CAJ | 학술논문

通过微波辐照活性炭与废铁屑的混合物处理橡胶促进剂生产废水.考察了炭铁混合物投加量、炭铁质量比、废水初始pH值、微波功率和微波辐照时间等对废水COD去除率的影响.结果表明,工艺的最佳参数为:炭铁混合物投加量65 g/L,炭铁质量比2:1,微波功率200 W,微波辐照5 min,此条件下的废水COD去除率为76%;反应的表观过程近似符合一级动力学规律,动力学方程为:ln(C_0/C)=O.1012_t+0.8887,速率常数k=0.1012 min~(-1),半衰期t_(1/2)=6.85 min;橡胶促进剂生产废水的微波辐照活性炭/铁屑处理工艺比单纯微波辐照及活性炭/铁屑处理工艺有明显的优越性.
통과미파복조활성탄여폐철설적혼합물처리상효촉진제생산폐수.고찰료탄철혼합물투가량、탄철질량비、폐수초시pH치、미파공솔화미파복조시간등대폐수COD거제솔적영향.결과표명,공예적최가삼수위:탄철혼합물투가량65 g/L,탄철질량비2:1,미파공솔200 W,미파복조5 min,차조건하적폐수COD거제솔위76%;반응적표관과정근사부합일급동역학규률,동역학방정위:ln(C_0/C)=O.1012_t+0.8887,속솔상수k=0.1012 min~(-1),반쇠기t_(1/2)=6.85 min;상효촉진제생산폐수적미파복조활성탄/철설처리공예비단순미파복조급활성탄/철설처리공예유명현적우월성.
The microwave irradiated active carbon and waste iron scraps were used to treat the rubber ac-celerant wastewater.The influences of the carbon-iron mixture dosage,the mass ratio of carbon to iron,the initial pH value of the wastewater,the microwave power and the irradiation time to the COD removal rate were studied.The results show that the optimal process parameters are as follows:65 g/L carbon-iron mixture dosage,2:1 mass ratio of carbon to iron,200 W microwave power and 5 min irradiation time.The COD removal rate of the wastewater can reach 76%under the above conditions.The apparent reaction process is approximately in consistent with the first order kinetics rule and the equation is:ln(C_0/C)=0.1012t+0.8887,with the reaction rate constant k=0.1012 min~(-1)and the half life t_(1/2)=6.85 min.The comparison of results shows that the microwave irradiated active carbon and iron scraps process is with obvious superiority against microwave irradiation process and active carbon-iron scraps process in treating the rubber accelerant wastewater.