为处理长链二元酸生物发酵工艺产生的高硫酸盐有机废水，筛选分离出一株具有优异耐盐性能的菌株GXNYJ-12，其可有效处理COD质量浓度为6 512 mg/L、硫酸盐质量浓度为20 200 mg/L、全盐量质量浓度为31 100 mg/L的长链二元酸工艺废水，经120 h好氧生化，COD去除率高达95%。其生化出水经臭氧催化氧化进一步处理，在采用自研活性炭复合材料负载催化剂（Fe₂O₃/ACNT）、液体空速为0.5 h^-1、臭氧相对投加量为2.3 g（O₃）/g（COD）条件下，出水COD降至58.7 mg/L，TOC降至20.1 mg/L。GC-MS定性分析结果表明，长链二元酸工艺废水有机组分多为稳定的五元环、六元环结构，仅生化处理很难实现COD达标排放。

GXNYJ-12,a strain which has excellent salt tolerance,is screened out and isolated to treat with high sulfates-containing organic wastewater generated from the long chain dibasic acid biological fermentation process.It can effectively treat with the long chain dibasic acid process wastewater with 6 512 mg·L^-1 of COD,20 200 mg·L^-1of sulfate,and 31 100 mg·L^-1 of total salt.After aerobic biochemical treatment by this strain for 120 h,COD removal rate can reach 95%.The biochemical effluent needs to be further treated by ozone catalytic oxidation.COD and TOC in final effluent decrease to 58.7 mg·L^-1 and 20.1 mg·L^-1,respectively when a self-made activated carbon composite supported catalyst (Fe₂O₃/ACNT) is employed,liquid space velocity is 0.5 h^-1,and relative ozone dosage is 2.3 g per gram of COD.GC-MS qualitative analysis results show that most of organic components in long-chain diacid process wastewater contain stable five-membered ring and six-membered ring structure,which is difficult to achieve COD emission standard only by biochemical treatment.