组合工艺处理富马酸废水的适宜性研究  

Study on the Suitability of Combined Process for Treatment of Fumaric Acid Wastewater

作　　者：李孟玉 兰天翔 江博[1] 刘瑞强 黄河[1] 戴捷[1] LI Mengyu;LAN Tianxiang;JIANG Bo;LIU Ruiqiang;HUANG He;DAI Jie(College of Chemistry and Environment Engineering,Yangtze University,Jingzhou 434023,China)

机构地区：[1]长江大学化学与环境工程学院,湖北荆州434023

出　　处：《水处理技术》2021年第12期103-105,111,共4页Technology of Water Treatment

基　　金：国家自然科学基金(2117326);湖北省自然科学基金重点项目(2013CFA107);荆州市科技项目(2019EC61-14)。

摘　　要：为实际富马酸废水处理设计工作的需要,考察组合工艺“铁碳微电解+三维电化学+厌氧+好氧”对富马酸废水的处理效果(实验室级)。结果表明,组合工艺对废水COD、NH_(3)-N去除率分别为92.95%、96.37%,出水COD和NH_(3)-N的质量浓度仍残余707.0 mg/L和107.1 mg/L。高级氧化技术预处理有效降解了废水中的硫脲,提高了BOD_(5)/COD,生化处理后的出水三维荧光图谱仍存在荧光峰A(λ(Ex)/λ(Em)=236.5 nm/363 nm,易降解类色氨酸有机物)和峰C(λ(Ex)/λ(Em)=303.5 nm/363 nm,溶解性微生物代谢产物),提示进一步强化生物处理过程应能够提升处理效果。据此设计的实际工程采用“铁碳微电解+三维电化学+厌氧+好氧+BAF”组合工艺,运行60 d以后出水满足GB 8978-1996的三级标准。This work investigates the treatment effect of the combined process"iron-carbon microelectrolysis+three-dimensional electrochemistry+anaerobic+aerobic"on the fumaric acid wastewater(laboratory level)for the actual fumaric acid wastewater treatment design.The results showed that the removal rate of COD and ammonia nitrogen in wastewater by the combined process were 92.95%and 96.37%,respectively.The COD and ammonia nitrogen in the effluent remained 707.0 mg/L and 107.1 mg/L.The advanced oxidation technology pretreatment effectively degrades thiourea in the wastewater,and improved the BOD_(5)/COD ratio.After the biochemical treatment,the three-dimensional fluorescence spectra of effluent still have a fluorescence peak A(λ(Ex)/λ(Em)=236.5 nm/363 nm,easily degradable Tryptophan organic matter)and peak C(λ(Ex)/λ(Em)=303.5 nm/363 nm,soluble microbial metabolites),suggested that further strengthening the biological treatment process should be able to improve the treatment effect.The actual project was designed with the combination of"iron-carbon microelectrolysis+three-dimensional electrochemistry+anaerobic+aerobic+BAF"process,and the effluent achieved the three-level of discharge standard(GB 8978-1996)after 60 days of operation.

关 键 词：富马酸废水 组合工艺 三维荧光 工程实验 

分 类 号：X783[环境科学与工程—环境工程]