[1]白强,李伟,董丛健,等.PAEs和PAHs在DE氧化沟中的降解特征[J].中国给水排水,2023,39(7):89-94.
　BAIQiang,LIWei,DONGCong-jian,et al.Degradation Characteristics of Phthalates and Polycyclic Aromatic Hydrocarbons in DE Oxidation Ditch[J].China Water & Wastewater,2023,39(7):89-94.
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PAEs和PAHs在DE氧化沟中的降解特征

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第39卷 期数: 2023年第7期 页码: 89-94 栏目: 出版日期: 2023-04-01
Title:
Degradation Characteristics of Phthalates and Polycyclic Aromatic Hydrocarbons in DE Oxidation Ditch
作者:
白强1， 李伟1， 董丛健1， 杨学福2， 赵凯3
（1.西安建筑科技大学环境与市政工程学院 西北水资源与环境生态教育部重点实验室，陕西 西安 710055；2.西安工业大学 建筑工程学院，陕西 西安 710032；3.西安创业水务有限公司，陕西 西安 710086）
Author(s):
BAI　Qiang1， LI　Wei1， DONG　Cong-jian1， YANG　Xue-fu2， ZHAO　Kai3
（1. Northwest China Key Laboratory of Water Resources and Environment Ecology， School of Environmental and Municipal Engineering， Xi’an University of Architecture and Technology， Xi’an 710055， China； 2. School of Civil and Architecture Engineering， Xi’an Technological University， Xi’an 710032， China； 3. Xi’an Capital Water Company Limited， Xi’an 710086， China）
关键词:
邻苯二甲酸酯;  多环芳烃;  DE氧化沟;  降解特征
Keywords:
phthalates;  polycyclic aromatic hydrocarbons;  DE oxidation ditch;  degradation characteristics
摘要:
以邻苯二甲酸酯（PAEs）和多环芳烃（PAHs）作为研究对象，使用气相色谱-三重四级杆质谱联用仪（GC-MS/MS）对其在西安市北石桥污水净化中心各级构筑物及DE氧化沟1个周期内水相和泥相中的浓度进行检测。结果显示，污水厂进水中能够检出5种PAEs和6种PAHs，生物处理单元是其去除的主要场所。其中，厌氧选择池对水相中PAEs的去除率为DEHA（33.6%）>DEHP（33.1%）>DEP（25.7%）>DBP（24.6%）>DMP（17.5%），对PAHs的去除率为Chr（35.9%）>Pyr（35.0%）>Flu（32.7%）>Phe（30.3%）>Ant（28.0%）>Nap（27.3%），主要是二沉池回流污泥的稀释作用和吸附作用所致。在后续DE氧化沟处理过程中，水相中对PAEs的去除率为DEP（89.3%）>DMP（86.4%）>DBP（58.0%）>DEHP（29.4%）>DEHA（19.0%），对PAHs的去除率为Nap（68.8%）>Ant（58.3%）>Flu（48.6%）>Phe（45.7%）>Pyr（12.3%）>Chr（8.5%）。在泥相中这两类物质的浓度基本保持不变，表明生物降解是PAEs和PAHs去除的主要原因。
Abstract:
The concentrations of phthalates (PAEs) and polycyclic aromatic hydrocarbons (PAHs) in water phase and sludge phase in each structure and DE oxidation ditch of Beishiqiao Wastewater Treatment Plant in Xi’an was detected by gas chromatography-triple quadrupole mass spectrometry (GC-MS/MS). Five kinds of PAEs and six kinds of PAHs were detected in the influent from the wastewater treatment plant, and the biological treatment unit was the main place for their removal. In anaerobic selector, the removal rate of PAEs in water phase in descending order was DEHA (33.6%), DEHP (33.1%), DEP (25.7%), DBP (24.6%) and DMP (17.5%), and that of PAHs in water phase in descending order was Chr (35.9%), Pyr (35.0%), Flu (32.7%), Phe (30.3%), Ant (28.0%) and Nap (27.3%), which was mainly caused by the dilution and adsorption of the returned sludge from the secondary sedimentation tank. After the treatment of the subsequent DE oxidation ditch, the removal rate of PAEs in water phase in descending order was DEP (89.3%), DMP (86.4%), DBP (58.0%), DEHP (29.4%) and DEHA (19.0%), and that of PAHs in water phase in descending order was Nap (68.8%), Ant (58.3%), Flu (48.6%), Phe (45.7%), Pyr (12.3%) and Chr (8.5%). In the sludge phase, the concentrations of these two substances remained basically unchanged, indicating that biodegradation was the main reason for the removal of PAEs and PAHs.

相似文献/References:

[1]张海婧,胡小键.输配水材料中环境雌激素的溶出研究[J].中国给水排水,2021,37(19):47.
　ZHANG Hai-jing,HU Xiao-jian.Dissolution of Environmental Estrogen in Water Delivery and Distribution Materials[J].China Water & Wastewater,2021,37(7):47.

更新日期/Last Update: 2023-04-01