[1]何才昌.非均相催化臭氧氧化技术用于高盐废水零排放工程[J].中国给水排水,2023,39(6):55-59.
HECai-chang.Application of Heterogeneous Catalytic Ozonation Technology in High Salt Wastewater Zero Discharge Project[J].China Water & Wastewater,2023,39(6):55-59.
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HECai-chang.Application of Heterogeneous Catalytic Ozonation Technology in High Salt Wastewater Zero Discharge Project[J].China Water & Wastewater,2023,39(6):55-59.
非均相催化臭氧氧化技术用于高盐废水零排放工程
中国给水排水[ISSN:1000-4062/CN:12-1073/TU]
卷:
第39卷
期数:
2023年第6期
页码:
55-59
栏目:
出版日期:
2023-03-17
- Title:
- Application of Heterogeneous Catalytic Ozonation Technology in High Salt Wastewater Zero Discharge Project
- 摘要:
- 内蒙古某化工有限公司200 m3/h高盐废水零排放项目，采用非均相催化臭氧氧化工艺对系统中以聚烯类、二氯乙烷等有机物为主要污染物的高稳定性、难降解的高倍浓缩液进行处理，将COD从350 mg/L左右降至175 mg/L以下，去除率在50%以上，O3/C（臭氧投加量与有机物去除量比耗）为2.5，催化接触反应时间为40 min。浓缩液结晶产品氯化钠的质量满足国标《工业盐》（GB/T 5462—2015）中的日晒工业盐一级标准，并能有效解决零排放系统因长期运行后有机污染物的富集而影响工艺稳定性的问题。非均相催化臭氧氧化工艺设备总投资586万元，运行费用为4.19元/m3。
- Abstract:
- Heterogeneous catalytic ozonation process was applied to treat the high concentrated liquid from a 200 m3/h high salt wastewater zero discharge project of a chemical company in Inner Mongolia. The concentrated liquid was stable and contained refractory compounds such as polyalene and dichloroethane. The COD was decreased from about 350 mg/L to less than 175 mg/L with the removal efficiency over 50%. The ratio of ozone dosage to the removed amount of organic matter (O3/C) was 2.5, and the catalytic contact reaction time was 40 min. The quality of concentrated liquid crystallization product (sodium chloride) met the solar industrial salt first level limit specified in national standard Salt Standard (GB/T 5462-2015), and the problem that the process stability was affected by the accumulation of organic pollutants after long-term operation of the zero-emission system was effectively solved. The total investment of heterogeneous catalytic ozonation process equipment was 5.86 million yuan, and the operating cost was 4.19 yuan/m3.
更新日期/Last Update:
2023-03-17