摘要
针对内蒙古自治区以市政出水为原水的某电厂,研究了混凝、活性炭吸附、臭氧氧化工艺对进厂原水中有机物的去除效率,同时采取荧光光谱和分子量分级分析了不同处理工艺对废水中有机物的影响。研究显示,原水中主要的有机物为腐殖酸和富里酸、微生物代谢产物,分子量大部分在<1 kDa这个区间。混凝和臭氧氧化工艺去除水中有机物效果较好,吸附工艺去除有机物效果略差。此外,混凝对原水中存在的颗粒性有机物以及大分子有机物有着很好的去除效果,TOC去除率达43.6%,而臭氧对UV_(254)有较强的去除率,去除率可达65%。混凝对分子量较大的有机物有较好的去除,臭氧去除大分子有机物的同时形成了新的小分子有机物。
The removal efficiencies of organics in the inlet water treatment process of a power plant in Inner Mongolia using municipal effluent as raw water by coagulation,activated carbon adsorption and ozone oxidation processes were studied.Meanwhile,the effects of different technologies on the organic compounds in waste water were analyzed through fluorescence spectrum and molecular weight classification.The results show that humic acid,fulvic acid and microbial metabolism acid were the main organic compounds in the reclaimed water,and the molecular weight was in the<1 kDa range.Coagulation and ozone were better in removing organic matter in water,while adsorption was a little worse.Moreover,coagulation possessed a good removal effect on particulate organic matter and macromolecular organic matter,and the TOC removal rate was 43.6%.Besides,the removal rate of UV_(254)by ozone was 65%.In addition,it was found that coagulation could efficiently remove macromolecule organic matter,and ozone could remove macromolecule organic matter and form new small molecule organic matter.
作者
治卿
李牧之
王焕伟
康谦
沈天琪
王楚亚
朱光灿
ZHI Qing;LI Muzhi;WANG Huanwei;KANG Qian;SHEN Tianqi;WANG Chuya;ZHU Guangcan(Electric Power Research Institute,Inner Mongolia,Hohhot 010020,China;School of Energy and Environment,Southeast University,Jiangsu,Nanjing 210096,China)
出处
《给水排水》
CSCD
北大核心
2022年第S01期609-614,共6页
Water & Wastewater Engineering
基金
内蒙古电力科学研究院科技项目(2020-ZC-02)
关键词
再生水
混凝
活性炭
臭氧
三维荧光
有机物
Reclaimed water
Coagulation
Activated carbon
Ozone
Three-dimensional fluorescence spectra
Organic matter
