[1]郝润秋,寿欢欢,张成凯,等.冷却—紫外高级氧化法处理零排系统的蒸发母液[J].中国给水排水,2022,38(21):72-75.
　HAORun-qiu,SHOUHuan-huan,ZHANGCheng-kai,et al.Cooling and UV Advanced Oxidation Process for Treatment of Evaporation Mother Liquor from Zero-discharge System[J].China Water & Wastewater,2022,38(21):72-75.
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冷却—紫外高级氧化法处理零排系统的蒸发母液

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第38卷 期数: 2022年第21期 页码: 72-75 栏目: 出版日期: 2022-11-01
Title:
Cooling and UV Advanced Oxidation Process for Treatment of Evaporation Mother Liquor from Zero-discharge System
作者:
郝润秋1， 寿欢欢2， 张成凯1， 付春明1， 郝亚超1， 肖彩英1， 李亮1， 周立山1
（1.中海油天津化工研究设计院有限公司，天津 300131；2.中海石油舟山石化有限公司，浙江 舟山 316000）
Author(s):
HAO　Run-qiu1， SHOU　Huan-huan2， ZHANG　Cheng-kai1， FU　Chun-ming1， HAO　Ya-chao1， XIAO　Cai-ying1， LI　Liang1， ZHOU　Li-shan1
（1. CenerTech Tianjin Chemical Research and Design Institute Co. Ltd.， Tianjin 300131， China； 2. CNOOC Zhoushan Petrochemical Co. Ltd.， Zhoushan 316000， China）
关键词:
冷却;  紫外;  高级氧化;  蒸发母液
Keywords:
cooling;  ultraviolet(UV);  advanced oxidation;  evaporation mother liquor
摘要:
废水零排放是目前我国工厂和园区发展的趋势。废水经过处理后主要部分被回用到生产系统中，还有一小部分被作为危险废弃物处理。零排项目最终的处理工艺一般为蒸发或者焚烧。采用蒸发工艺会产生母液，蒸发母液因为高COD、高盐而无法回到蒸发系统中，只能作为危废进行处理，且处理成本较高。采用冷却—紫外高级氧化联合工艺处理零排系统蒸发母液，可以解决目前存在的问题。研究结果表明，当冷却温度为-5 ℃时，脱盐效果较好，脱盐率可达65.23%；在臭氧投加量为600 mg/L、H2O2投加量为0.75 g/L、辐照时间为3 h的条件下，对COD的去除率为48.2%，对TOC的去除率为44.8%。处理后污水的盐含量和COD均大幅降低，可回到原蒸发系统，从而实现零排放。
Abstract:
Wastewater zero-discharge is a contemporary developing trend of factories and industrial parks in China. The majority of the wastewater is reused into the production system after treatment, and a small part is treated as hazardous waste. The final disposal process for zero-discharge projects is usually evaporation or incineration. The evaporation process will produce mother liquor, which cannot be returned to the evaporation system because of high COD and salt content. It can only be treated as hazardous waste, which leads to high treatment cost. The combined process of cooling and ultraviolet advanced oxidation is capable of treating the mother liquor and solves the existing problems. When the cooling temperature was -5 ℃, the desalting performance was better, and the desalting rate reached 65.23%. When the ozone dosage, hydrogen peroxide dosage and irradiation time were 600 mg/L, 0.75 g/L and 3 h, the COD removal rate was 48.2%, and the TOC removal rate was 44.8%. The salt content and COD of the wastewater were greatly reduced after the treatment. The wastewater could be returned to the original evaporation system, so as to achieve zero-discharge.
更新日期/Last Update: 2022-11-01