目前，针对废水中单一类型污染物的处理已经有了比较成熟的方法，而对重金属离子和有机污染物同时处理的方法还很缺乏。活性炭吸附是处理废水的一种重要方法，但存在吸附剂容易饱和，不易再生的问题。本研究考察了微波-活性炭联合作用同时去除染料废水中的亚甲基蓝和Cd2+，重点考察了微波辐照对活性炭的再生作用，并考察了Cd2+的存在对微波降解亚甲基蓝的影响。结果表明，当亚甲基蓝浓度为1000mg/L、活性炭用量为10g时，新炭对亚甲基蓝的去除率为99.99%，采用700W功率的微波辐照10min并回用第十次的活性炭对亚甲基蓝的去除率为99.68%。当用同样的实验条件对亚甲基蓝浓度为1000mg/L、Cd2+浓度为100mg/L的混合溶液进行反复的吸附-微波辐照-吸附实验时，活性炭对亚甲基蓝的吸附量和累计吸附量都有所减少，表明Cd2+存在的情况下，活性炭吸附亚甲基蓝的能力有所下降。对新炭和用过的活性炭分别制作其对亚甲基蓝和Cd2+的吸附等温线，并进行了物理结构特性及官能团表征，分析了活性炭的吸附机理及微波作用对活性炭吸附能力的再生作用。研究证实，用活性炭吸附-微波辐照处理含有亚甲基蓝和Cd2+的混合废水，是一种很有效的方法。利用吸附法去除水中重金属离子需要关注的另外一个问题是重金属在吸附剂上的固定问题，以方便处置使用过的吸附剂，降低二次污染的风险。水中所含的腐殖酸可能会影响重金属的吸附和固定。本研究采用微波辐照的方法，对饱和活性炭进行再生的同时把Cd2+固定在活性炭上，并考察了腐殖酸对Cd2+吸附和固定的影响。结果表明，腐殖酸可以促进重金属在活性炭上的吸附和固定作用，另外微波辐照前活性炭的含水率、微波辐照时间和功率都对固定效果有显著的影响。用700W功率的微波辐照吸附了Cd2+的干燥活性炭10min后，固定率达到89%。经过优化后的方法还可以用于固定Cu2+、Zn2+、Pb2+等金属离子。 活化过硫酸盐氧化技术逐渐应用到受到POPs污染的水体或土壤的治理中。本研究利用微波加热活化过硫酸钾，考察了过硫酸钾浓度对微波加热活化处理溶液中PCP效率的影响，以及溶液pH对处理效果的影响。结果显示，在微波功率为350W、溶液pH为4、溶液中PCP与K2S2O8浓度比为1:10时，反应14min后PCP就可以彻底矿化。

Nowadays there are many methods dealing with a single type of pollutant in wastewater, but still lack of methods on removing heavy metal ions and organic pollutants simultaneously. The activated carbon adsorption technology is one of the effective methods for printing and dyeing wastewater treatment, but the saturated carbon is difficult to regenerate and easy to cause secondary pollution. This paper describes an integrated granular activated carbon (GAC) adsorption/microwave (MW) irradiation process used for the treatment of high concentration methylene blue (MB) or/and Cd2+ aqueous solution. The decoloration efficiency of 100 mL MB solution (1000mg/L) by 10g new GAC was 99.99%. Under the conditions of MW power 700W and irradiation time 10 min, the saturated GAC was regenerated by MW irradiation, and being reused for adsorption. The GAC was reused after the regeneration by MW irradiation for ten times, and the decoloration efficiency of the tenth time was 99.68%. GAC adsorption-MW irradiation was used to the mixed solution in which the concentration of MB was 1000mg/L, and the concentration of Cd2+ was 100mg/L under the same conditions. The results suggested that when Cd2+ was co-existed, the GAC adsorption to MB was decreased, as indicated by MB adsorption isotherms, IR and BET results. Immobilization of heavy metal ions adsorbed on adsorbent is of significance for the final disposal of discarded adsorbents. The presence of humic acid in water may influence adsorption and subsequent immobilization of heavy metal ions on adsorbent. In this study, microwave irradiation was adopted, on the one hand to regenerate granular activated carbon (GAC) saturated with Cd2+, and on the other hand to immobilize Cd2+ on GAC. The effects of humic acid on adsorption of Cd2+ on GAC and immobilization of Cd2+ by microwave irradiation were investigated. The results showed that certain concentration of humic acid promoted the adsorption and the immobilization of Cd2+. Some important parameters, including microwave power, irradiation time and water content of GAC were found to have significant effects on the immobilization of Cd2+ on GAC by microwave irradiation. Evaluation based on the TCLP showed that for the dried GAC, about 89% immobilization of Cd2+ was achieved by 700W microwave irradiation for 10 min. The developed technology may also be effective for the immobilization of other metal ions, such as Cu2+, Zn2+ and Pb2+, etc. Activated persulfate oxidation has been applied for the degradation of organic pollutants in soil and groundwater. This study investigated the efficiency of potassium persulfate oxidation for the decomposition of PCP activated by microwave, and the effect of pH on the reaction was explored. The results showed that PCP can be completely mineralized by 350W microwave irradiation in14 min, with concentration ratio of PCP and K2S2O8 1:10 and pH=4.