微波辐射对麦草浆蒸煮黑液的作用研究  

Treatment of wheat straw pulp wastewater by microwave irradiation

作　　者：冯建敏[1] 邓宇[1] 李兰青子[1] 

机构地区：[1]天津科技大学化工学院,天津科技大学天津市制浆造纸重点实验室,天津300222

出　　处：《辐射研究与辐射工艺学报》2005年第5期270-273,共4页Journal of Radiation Research and Radiation Processing

摘　　要：采用微波辐射技术,建立了麦草浆蒸煮黑液的处理工艺。以颗粒活性炭和钢渣为混合催化剂,考察了钢渣与活性炭总量、比例、微波辐射功率、辐射时间等对黑液处理效果的影响。结果表明,在微波辐射功率800W,照射时间10min,活性炭与钢渣总量13g、比例1∶23的工艺条件下,50mL黑液的色度去除率能达95%以上,并且发现混合催化剂在重复使用4次后,黑液的色度去除率仍达80%以上。进一步研究发现,黑液的氧化过程基本符合一级反应动力学规律。A microwave treatments has been developed for decoloration of wheat straw pulp wastewater. Granular activated carbon （GAC） and steel slag are used as catalyst. Effective factors on chrominance removal, such as quantity and ratio of the mixed catalyst, microwave power, and reaction time, were studied. Over 95% of chrominance removal from 50 mL wastewater could be achieved by putting in it 10 gram of GAC and steel slag at a ratio of 1：23 and operating the microwave oven at 800 W for 10 minutes. It was find that when the catalyst was used for the fourth time, the chrominance removal could still be more than 80%. A kinetics study on the treatment suggested that the decoloration process accorded to a fist-order reaction.

关 键 词：微波 黑液 活性炭 钢渣 色度 

分 类 号：X131.2[环境科学与工程—环境科学] X793