催化湿式氧化处理助剂废水工程及过程模拟  

Engineering and process simulation of auxiliary wastewater treated by catalytic wet air oxidation

作　　者：孙文静[1,2] 卫皇曌 李先如[3] 熊子昂[4] 孙承林 SUN Wenjing;WEI Huangzhao;LI Xianru;XIONG Ziang;SUN Chenglin(Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian 116023,China;University of Chinese Academy of Sciences,Beijing 100049,China;Zhangjiagang Industrial Technology Research Institute Co.Ltd.,Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Zhangjiagang 215600,China;Faculty of Chemical,Environmental and Biological Science and Technology,Dalian University of Technology,Dalian 116024,China)

机构地区：[1]中国科学院大连化学物理研究所,大连116023 [2]中国科学院大学,北京100049 [3]中国科学院大连化学物理研究所张家港产业技术研究院有限公司,张家港215600 [4]大连理工大学化工与环境生命学部,大连116024

出　　处：《环境工程学报》2018年第8期2421-2428,共8页Chinese Journal of Environmental Engineering

基　　金：山东省科技重大专项(2015ZDXX0402B01);中国科学院重点部署项目(ZDRW-ZS-2016-5);中国科学院大连化学物理研究所科研创新基金项目(DICP ZZBS201614)

摘　　要：助剂废水是一种高浓度难降解有机废水,以催化湿式氧化(CWAO)为主体的CWAO-UASB-AOA-接触氧化-混凝沉淀工艺能够对其进行有效降解。在CWAO工业化装置设计中,床层温升(Tg)和换热器总传热系数(K)是换热器设计的2个重要参数。采用Aspen Plus对CWAO过程进行稳态模拟,Aspen Plus对Tg模拟结果同分布式控制系统(DCS)实测结果相对误差在±2.0%以内。根据计算结果可知,K为800 W·(m^2·℃)^(-1)。结合K和Tg可以用来估算换热面积,进而指导CWAO过程系统工程的工业化设计。Auxiliary wastewater is a kind of wastewater containing high-concentration and hard-degraded organic pollutants. Catalytic wet air oxidation（CWAO） is the main process of CWAO-UASB-AOA-contact oxidationcoagulation method, which can effectively treat hard-degraded organic pollutants in auxiliary wastewater. In this CWAO industrialization apparatus, the temperature gradient between the reactor inlet and outlet（Tg） and heat transfer coefficient（K） are two important parameters for heat exchanger design. To this end, we carried out the steady-state simulation of CWAO process by Aspen Plus, and revealed that the relative error Tgof between the simulation and testing results of distributed control system（DCS） was less than 2.0%. Then, the K factor was calculated to be 800 W·（m^2·℃）^-1. As a consequence, the heat exchanger area was readily estimated in term of Tg and K, and then provided an insightful engineering design guideline of CWAO industrialization system.

关 键 词：助剂废水 催化湿式氧化 工程实例 过程模拟 

分 类 号：X592[环境科学与工程—环境工程]