表面活性剂环烷酸钠生化降解条件优化及碳排放分析  

Optimization of Biodegradation Conditions of Surfactant Sodium Naphthenate and Analysis of Carbon Emission

作　　者：朱莹 刘国华 席文昌 田莹莹 ZHU Ying;LIU Guohua;XI Wenchang;TIAN Yingying(School of Materials,Henan Institute of Technology,Xinxiang 453003,China;Xinxiang Engineering Research Center for Wastewater Treatment Energy Saving and Emis sion Reduction,Xinxiang 453003,China)

机构地区：[1]河南工学院材料科学与工程学院,河南新乡453003 [2]新乡市水处理节能减排工程技术研究中心,河南新乡453003

出　　处：《河南工学院学报》2024年第4期32-37,共6页Journal of Henan Institute of Technology

基　　金：河南省自然科学基金面上项目(232300420143)。

摘　　要：通过试验,对环烷酸钠的可生化性进行了研究,以减少其对环境的不良影响。使用20mg/L浓度的环烷酸钠进行试验,结果表明,在采用城市污水处理厂耗氧池中的活性污泥作为接种物的情况下,其最佳可生化性环境为:曝气量8L/h,接种物浓度75mgMLSS/L,生化反应液pH=7,温度25℃。此时,环烷酸钠10d的可生化性为37.11%,28d的可生化性为69.85%。根据OECD化学品测试标准,环烷酸钠可生化性良好,且碳排放量在规定范围内,因此可推广使用。Through experiments,the biodegradability of sodium naphthenate was studied in order to reduce its adverse effects on the environment.Using sodium naphthenate at 20 mg/L concentration,the results showed that the optimal biodegradability environment was as follows:aeration rate of 8 L/h,inoculant concentration of 75 mgMLSS/L,biochemical reaction solution pH=7,temperature 25 ℃ when activated sludge was used as inoculant in the oxygen consumption tank of municipal sewage treatment plant.At this time,the biodegradability of sodium naphthenate for 10 days was 37.11%,and that for 28 days was 69.85%.According to chemical testing guidelines,sodium naphthenate has good biodegradability and carbon emissions are within the prescribed range,so it can be popularized.

关 键 词：表面活性剂 环烷酸钠 可生化性 最佳环境条件 碳排放 

分 类 号：X592[环境科学与工程—环境工程]