【作者】 史豪杰；

【导师】 买文宁；

【作者基本信息】 郑州大学 ， 环境工程， 2013， 硕士

【摘要】 随着我国工业的全面发展,水资源短缺和水污染的环境问题已经严重阻碍了我国经济社会的可持续发展,工业废水的深度处理和回用势在必行。维生素C生产过程生产的废水COD浓度高、成分复杂、水质水量变化大、色度高且为真色,废水中所含的大量的有毒有害的微生物难降解有机污染物,通过厌氧和好氧两级生化处理之后,废水的污染物大部分为微生物难降解的有机物,BOD/COD很低,可生化降解性极差。本课题阐述了维生素C制药废水的特点,并对维生素C制药废水的处理和非均相Fenton技术的国内外研究进展进行了综述,采用非均相Fenton技术对维生素C制药废水二级生化出水进行了深度处理试验研究,其废水来源于河南某维生素C生产企业污水处理站的二级生化尾水。试验首先进行了非均相Fenton的固态催化剂有效成分的研究。探究了针铁矿、磁铁矿和硫铁矿烧渣等含铁矿物质的吸附性能和非均相Fenton技术的催化氧化性能,根据三种矿物质的非均相催化氧化性能试验结果和矿物质的来源、成本等确定了硫铁矿烧渣作为本非均相Fenton的负载催化剂。试验还探究了部分金属或金属氧化物的吸附性能和非均相Fenton技术的催化氧化性能,选择CuO、A1203、Zi02、NiO、Cr2O3、Ag20等金属氧化物作为非均相催化剂的原料,最后把硫铁矿烧渣和这些金属氧化物利用高温微孔技术制备成粒径为3cm左右的填料,试验制备的填料即为本试验选取的非均相催化剂。然后,试验以制备的固体填料作为催化剂,探究了对维生素C制药废水非均相催化氧化反应的最佳试验条件,得出如下最佳条件：H2O2投加量4.9mmo1/LFeSO4投加量3.9mmol/L,搅拌反应时间为20min,曝气时间为20min,PAM投加量为4mg/L,在此最佳条件下非均相Fenton技术对维生素C生产废水二级生化出水的COD的去除效率达到62.42%；本非均相Fenton技术若运用于工程中,吨水的药剂运行费用最高为0.98元/m3；本试验对维生素C生产废水深度处理的实际工程应用提供了一定的理论基础,同时为非均相Fenton技术的催化剂的稳定性和催化性能的研究具有一定的指导意义。更多还原

【Abstract】 As the industrial development, water shortages and pollution has been a serious obstacle to the sustainable economic and social development in China. Deep treatment and reuse of industrial wastewater is a must. The wastewater that produced in the production process of Vitamin C is with high COD concentration, complex, large changes in water quality&quantity, high chroma as well as true color. There are large amounts of hard-biodegraded and toxicant substances in the water. Through anaerobic and aerobic two-stage biological treatment, most of pollutants from wastewater is hard-biodegraded organics with the low BOD/COD. The text expounds the characteristics of the wastewater in the production process of vitamin C and summaries the treatment of the vitamin C wasterwater and the research progress of the heterogeneous Fenton technology at home and board. In this subject, we made the related experiment research on the vitamin C pharmaceutical wastewater passed biochemical treatment, which is from one production enterprise of vitamin C in Henan.In the experiment, we fistly study active ingredient of the solid catalyst for the heterogeneous Fenton technology, separately studying the adsorption of the Goethite, Magnetite and Pyrite cinder and the catalytic oxidation performance in heterogeneous Fenton technolog. Compared with the heterogeneous catalytic oxidation performance, source, cost and so on, we determine pyrite cinder as supported catalyst in the the heterogeneous Fenton technology at last. At the same time, we also study the adsorption and the catalytic oxidation performance of some metals and metal oxides in heterogeneous Fenton technolog. We choose CuO、AL2o3、TiO2、Nio、Cr2O3and Ag2O as the raw material of heterogeneous catalysts separately. At last, we made pyrite cinder and these metal oxide using high temperature micro-hole technology into the filler particle size3cm. The filler is the heterogeneous catalyst in the experiment. Then, we explore the optimum conditions of the heterogeneous Fenton technology of vitamin C pharmaceutical wastewater with the fillers as catalyst. The concludes as follows:H2O24.9mmol/L, FeSO43.9mmol/L, Mixing reaction time20min, aeration time20min, PAM4mg/L as the optimum condition. In this condition, the removal efficiency of COD in vitamin C pharmaceutical wastewater reached62.42%using the heterogeneous Fenton technology; the highest cost of pharmaceutical operating is only0.98Yuan/m3, if the heterogeneous Fenton technology is applied to engineeringThis experiment provides a certain theoretical basis for practical engineering of Vitamin C production wastewater deep treatment. Meanwhile, it has a certain guiding significance for the stability and catalytic performance of the catalyst in heterogeneous Fenton technology.更多还原