Fe^(2+)-Al^(3+)紫外催化臭氧法降解腈纶废水研究  

Degradation of Acrylic Fiber Wastewater with Fe^(2+)-Al^(3+) and Ultraviolet Catalyzed Ozonation Processes

作　　者：于忠臣[1,2] 张雪娇[2] 王松[3] 马冬[2] 钟柳波 孙聪[2] 

机构地区：[1]黑龙江省防灾减灾及防护工程重点实验室,黑龙江大庆163318 [2]东北石油大学土木建筑工程学院,黑龙江大庆163318 [3]东北石油大学地球科学学院,黑龙江大庆163318

出　　处：《高校化学工程学报》2015年第2期465-470,共6页Journal of Chemical Engineering of Chinese Universities

基　　金：中国石油天然气股份有限公司科技风险创新基金(0706D01040405);黑龙江省自然科学基金(15048B0611)

摘　　要：采用Fe2+-Al3+紫外催化臭氧工艺处理生化后腈纶废水,实现废水中有机组分的有效化和矿化作用,使其达标排放。分析了金属离子和紫外光催化臭氧顺序及协同作用,考察了氨氮及有机物的COD去除率,最后通过p H转化特征和傅里叶红外光谱分析处理前后有机物的形态演化。结果表明,水力停留时间2.0 h时,Fe2+-Al3+和紫外光协同催化臭氧的氧化作用最好,COD去除率达77.4%;氨氮减少缓慢,去除率为8.87%;有机物的去除效率为60%时,BOD/COD提高到0.277,产生大量微生物可接受的小分子有机物。生化后的腈纶废水经工艺氧化后有机物转化为有机酸,溶液p H值降低。经红外光谱分析,影响生物降解性的惰性基团减弱或消失。Acrylic fiber wastewater was treated by heterogeneous catalytic ozone process combined with Fe^2＋-Al^3＋ and UV. Affecting factors of oxidation capacity were discussed in detail and organic transition was inspected by FTIR and p H transition study before and after the catalytic ozone process. The result shows that Fe^2＋-Al^3＋ and UV catalyzation have the best oxidation efficiency with COD removal rate up to 77.4%. The content of ammonia nitrogen decreases slowly and the removal rate is only 8.87%. Large amounts of microbial acceptable organic molecules were generated when organic removal rate was 60% along with the BOD/COD rate of 0.277. The acrylic fiber wastewater after the treatments has low pH and organic acids are formed from the oxidation of organic compounds. Moreover, fewer inert groups exist that can influence biological degradability.

关 键 词：臭氧 紫外光 金属离子 高级氧化 腈纶废水 

分 类 号：X172[环境科学与工程—环境科学]