我国现有焦化废水处理技术虽可使最终排放废水达到国家标准，但在实际生产中仍有90%以上焦化厂废水处理出水的COD(化学需氧量)无法达标，难降解有机污染物的去除成本过高是主要原因之一。基于焦化废水中有机物达标去除成本高、效率较低，煤颗粒粒径小、沉降较差的问题，建立Fe(〖KG-*5〗Ⅵ)/H2O2体系，结合Fe(〖KG-*5〗Ⅵ)氧化法和类Fenton法两者的优点，以及反应产物Fe(Ⅲ)的絮凝性，研究Fe(〖KG-*5〗Ⅵ)/H2O2体系在水溶液中对煤颗粒的快速氧化絮凝效果和该体系在实际焦化废水中对煤颗粒和有机物的协同去除效果及影响因素，以期为进一步研发该类工业废水同步去除有机物和无机物的高效低耗处理技术提供依据。选取颗粒表面Zeta电位值为反映煤颗粒物沉降性能的主要指标，采用单因素试验，考察H2O2投加量、Fe(〖KG-*5〗Ⅵ)及H2O2反应时间、无机盐等对Fe(〖KG-*5〗Ⅵ)/H2O2体系氧化煤颗粒的影响。采集焦化厂生产废水，考察pH对Fe(〖KG-*5〗Ⅵ)/H2O2体系处理实际焦化废水的影响以及该体系对实际焦化废水中COD、氨氮和SS（悬浮颗粒物）的协同处理效果。结果表明:Fe(〖KG-*5〗Ⅵ)与H2O2可形成优势互补，Fe(〖KG-*5〗Ⅵ)氧化煤颗粒40 s后加入H2O2，再反应15 min后，煤颗粒表面Zeta绝对值显著降低，达到较好絮凝沉降效果，且与该体系氧化菲的最佳条件基本一致。无机阳离子的压缩双电层作用使得煤颗粒表面的Zeta电位值更加接近于0，可提高煤颗粒的沉降效果。采用Fe(〖KG-*5〗Ⅵ)/H2O2体系处理实际焦化废水原水水样后，COD、氨氮、SS的去除率分别达到了69.27%、75.95%和89.81%，且有一定的脱色效果。

Although the existing coking wastewater treatment technology can make the final discharge wastewater meet the national standard of China,the effluent COD from more than 90% of coking wastewater treatment during actual operation cannot really meet the standard.  The high removal cost of refractory organic pollutants is one of the main reasons.  In order to coordinately solve both problems of high cost and low efficiency of organic matter and the poor settlement of coal particles with small size in coking wastewater treatment,a Fe(〖KG-*5〗Ⅵ)/H2O2 system was established,by combining the advantages of both the Fe(〖KG-*5〗Ⅵ)oxidation method and Fenton like method,and the flocculability of the reaction product Fe(Ⅲ)together,to investigate the rapid oxidation flocculation effect of coal particles in aqueous solution,and collaborative removal of coal particles and organic matter in the actual coking wastewater by the Fe(〖KG-*5〗Ⅵ)/H2O2system,in order to provide an important theoretical basis for the further development of coking wastewater treatment technology with high efficiency and low consumption. The Zeta potential value on the particle surface was selected as the main index reflecting the settling property of coal particles,and the single-factor experiment was used to investigate the effects of the addition amount of H2O2,the reaction time of Fe(〖KG-*5〗Ⅵ)and H2O2,respectively,and inorganic salts on the oxidized coal particles by Fe(〖KG-*5〗Ⅵ)/H2O2 system. The actual coking wastewater was collected,and the synergism effect of Fe(〖KG-*5〗Ⅵ)/H2O2 system on COD,ammonia nitrogen and SS was studied. The results showed that Fe(〖KG-*5〗Ⅵ)and H2O2 could form complementary advantages,which improved the flocculation and settlement performance of coal particles to some extent. After coal particles oxidized by Fe(〖KG-*5〗Ⅵ)for 40 s,H2O2 was added to react for another 15 min,and then,the absolute value of Zeta potential on the surface of coal particles decreased significantly,achieving a better flocculation and settlement effect. Inorganic cations could compress the double electric layers on the surface of coal particles,thus reducing the absolute Zeta potential and improving the settlement of coal particles. After using Fe(〖KG-*5〗Ⅵ)/H2O2 system to treat actual coking wastewater,the removal rates of COD,ammonia nitrogen and SS reached 69.27%,75.95% and 89.81%,respectively,with certain decolorization effect.