二价铁离子对糖蜜酒精废水厌氧发酵的影响  

Effect of Fe^(2+) on Anaerobic Digestion of Molasses Alcohol Wastewater

作　　者：张佳[1,2,3,4] 孙永明[1,2,3] 李金平[4] 孔晓英[1,2,3] 任守军[1,2,3,4] 陈晓洁[1,2,3,4] ZHANG Jia;SUN Yong-ming;LI Jin-ping;KONG Xiao-ying;REN Shou-jun;CHEN Xiao-jie(Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China;Key Laboratory of Renewable Energy, Chinese Academy of Sciences, Guangzhou 510640, China;Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, China;China Western Energy & Environment Research Center, Lanzhou University of Technology, Lanzhou 730050, China)

机构地区：[1]中国科学院广州能源研究所,广州510640 [2]中国科学院可再生能源重点实验室,广州510640 [3]广东省新能源和可再生能源研究开发与应用重点实验室,广州510640 [4]兰州理工大学,西部能源与环境研究中心,兰州730050

出　　处：《新能源进展》2016年第6期431-435,共5页Advances in New and Renewable Energy

基　　金：国家科技支撑计划项目(2014BAD02B04);广东省科技计划项目(2015B020215011)

摘　　要：为提高糖蜜酒精废水的厌氧发酵效率,实现其资源化再利用,本文研究了添加一定量Fe^(2+)对糖蜜酒精废水厌氧发酵处理过程的影响。结果表明:添加Fe^(2+)后发酵液中SO_4^(2-)的去除率由77.12%提高至90.79%;COD去除率由57.34%提高至81.14%;累积沼气产量由386 m L·g-1 VS提高至475 m L·g-1 VS;产气周期由29天缩短为26天;其氧化还原电位(ORP)升高,p H值降低。In order to improve the anaerobic digestion efficiency and realize the recycle of molasses alcohol wastewater,the effects of Fe2+ on the digestion process were investigated. The results showed that with the addition of Fe2+, the SO42?removal rate increased from 77.12% to 90.79%, the COD removal rate increased from 57.34% to 81.14%, the accumulativebiogas yield increased from 386 mL·g?1VS to 475 mL·g?1VS, and the biogas production period was shortened from 29 d to26 d, respectively; in addition, the oxidation-reduction potential (ORP) rose and the pH value decreased.

关 键 词：二价铁离子 SO42.去除率 COD去除率 产气量 

分 类 号：TK6[动力工程及工程热物理—生物能]