[1]徐衍超,王亚军,王进喜.基于多元回归的四环素胁迫下生物滞留池碳排放核算[J].中国给水排水,2023,39(15):34-44.
　XUYan-chao,WANGYa-jun,WANGJin-xi.Carbon Emission Accounting of Bioretention Cell under Tetracycline Stress Based on Minitab Multiple Regression Analysis[J].China Water & Wastewater,2023,39(15):34-44.
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基于多元回归的四环素胁迫下生物滞留池碳排放核算

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第39卷 期数: 2023年第15期 页码: 34-44 栏目: 出版日期: 2023-08-01
Title:
Carbon Emission Accounting of Bioretention Cell under Tetracycline Stress Based on Minitab Multiple Regression Analysis
作者:
徐衍超1,2， 王亚军1,2， 王进喜3
（1.兰州理工大学 土木工程学院，甘肃 兰州 730050；2.兰州理工大学 西部土木工程防灾减灾教育部工程研究中心，甘肃 兰州 730050；3.兰州文理学院 化工学院，甘肃 兰州 730000）
Author(s):
XU　Yan-chao1，2， WANG　Ya-jun1，2， WANG　Jin-xi3
（1. School of Civil Engineering， Lanzhou University of Technology， Lanzhou 730050， China； 2. Western Engineering Research Center of Disaster Mitigation in Civil Engineering ， Lanzhou University of Technology， Lanzhou 730050， China； 3. School of Chemical Engineering， Lanzhou University of Arts and Science， Lanzhou 730000， China）
关键词:
碳排放核算;  生物滞留池;  污水处理;  四环素;  多元回归
Keywords:
carbon emission accounting;  bioretention cell;  sewage treatment;  tetracycline;  multiple regression
摘要:
为探究四环素胁迫下哪种植物可以使生物滞留池（BRC）在保证最佳处理效果的前提下碳排放量最小，通过构建3个试验反应组、共计8个填充完全相同的生物滞留池处理不同浓度的四环素污水，经过为期147 d的试验，初步阐明了生物滞留池的温室气体产生机理，并构建了其碳足迹模型。在此基础上借助IPCC排放因子法对不同四环素浓度水平下生物滞留池的CH4和N2O排放量进行了估算，并利用Minitab以装置在不同浓度四环素胁迫运行时长下的碳排放量为因变量，四环素浓度、COD去除率和TN去除率为自变量进行多元回归分析，建立了回归模型，并通过补充试验验证了模型的可靠性。经分析，当四环素浓度较高时（1.2~1.8 mg/L）种植菖蒲的BRC处理效能最佳：COD去除率可达89%以上，TN去除率可达60%以上，碳排放量（以CO2eq计）最低约为0.123 9 kg；其次为虉草。四环素浓度较低时（0~0.6 mg/L）种植虉草的BRC处理效能最佳：COD去除率可达89%以上，TN去除率可达66%以上，碳排放量最低约为0.105 4 kg；其次为菖蒲。因此，在确保BRC出水水质的同时又使碳排放量最小，较高浓度四环素胁迫下选择种植菖蒲，较低浓度四环素胁迫时选择种植虉草。
Abstract:
In order to explore the plant which can minimize the carbon footprint of bioretention cell (BRC) under tetracycline stress, a total of 8 bioretention cell filled with the same packing were constructed to treat tetracycline wastewater for a period of 147 days. The mechanism of greenhouse gas production during the operation of bioretention cell was preliminarily expounded, and the carbon footprint model of bioretention cell was constructed. On this basis, the emissions of CH4 and N2O in the process of wastewater treatment with different concentrations of tetracycline were estimated by means of IPCC emission factor method.Taking the carbon emission under different tetracycline concentration stress operation duration as the dependent variable and tetracycline concentration, COD removal rate and TN removal rate as the independent variable, multiple regression analysis was conducted using Minitab. Then the regression model was established. The reliability of the model was verified by supplementary experiments. According to the analysis, when the tetracycline concentration was at a high level (1.2-1.8 mg/L), the BRC treatment efficiency of planting Acorus calamus was the best: the COD removal rate could reach more than 89%, the TN removal rate could reach more than 60%, and the lowest carbon emission (in CO2 equivalent) was about 0.123 9 kg, followed by Phalaris arundinacea. When the tetracycline concentration was at a low level (0-0.6 mg/L), the BRC treatment efficiency of planting Phalaris arundinacea was the best: COD removal rate could reach above 89%, TN removal rate could reach above 66%, and the lowest carbon emission was about 0.105 4 kg, followed by Acorus calamus.Therefore, in order to ensure the quality of BRC effluent and minimize carbon emissions, it is recommended to palnt Acorus calamus under the stress of higher concentration of tetracycline, and Phalaris arundinacea under the stress of lower concentration of tetracycline.

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更新日期/Last Update: 2023-08-01