[1]郑安东,钱成龙,黄金杰,等.溶藻进程中菌株的生长动力学与降解动力学研究[J].中国给水排水,2023,39(23):83-90.
　ZHENG An-dong,QIAN Cheng-long,HUANGJin-jie,et al.Growth and Degradation Kinetics of Strains during Algae Lysis Process[J].China Water & Wastewater,2023,39(23):83-90.
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溶藻进程中菌株的生长动力学与降解动力学研究

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第39卷 期数: 2023年第23期 页码: 83-90 栏目: 出版日期: 2023-12-01
Title:
Growth and Degradation Kinetics of Strains during Algae Lysis Process
作者:
郑安东1， 钱成龙1， 黄金杰1， 薛静静1,2， 毛林强1， 张文艺1
（1.常州大学 环境与安全工程学院，江苏 常州 213164；2.扬州市城市规划设计研究院有限责任公司，江苏 扬州 225000）
Author(s):
ZHENG An-dong1， QIAN Cheng-long1， HUANG　Jin-jie1， XUE　Jing-jing1，2， MAO　Lin-qiang1， ZHANG　Wen-yi1
（1. School of Environmental and Safety Engineering， Changzhou University， Changzhou 213164， China； 2. Yangzhou Urban Design Institute Co. Ltd.， Yangzhou 225000， China）
关键词:
溶藻;  生长动力学;  降解动力学
Keywords:
algae lysis;  growth kinetics;  degradation kinetics
摘要:
针对近年来采用微生物法治理蓝藻这一热点问题，以铜绿微囊藻为受试对象，以浇灌蓝藻水华藻水的水稻根部土壤筛得的菌株XXG（Paenibacillus sp.）为试验对象，考察菌株的溶藻特性，研究溶藻进程中菌株的动力学，分别构建其生长、降解动力学模型。结果表明，在菌藻体积比为5.6%、温度为30 ℃且处于对数增长期的铜绿微囊藻条件下，处于对数增长期的菌株XXG 6 d的溶藻率为60.60%；菌株XXG在溶藻体系中的生长曲线符合Polynomial模型，其中第3.5天菌株的细胞密度（OD600）达到最大（0.799），菌株XXG比生长速率动力学符合一元一次线性模型；在菌藻共生状态下，指数衰减动力学模型和一级反应动力学模型均可较好地预测、模拟溶藻体系中叶绿素a浓度的变化；在溶藻过程中藻细胞的TN和TP浓度变化量与溶藻时间也都符合一元一次动力学模型。
Abstract:
The microbial treatment of cyanobacteria is a hot research issue in recent years. This paper explored the algae lysis characteristics of Microcystis aeruginosa by the strain XXG (Paenibacillus sp.) selected from rice root soil irrigated with cyanobacteria bloom water, investigated the growth and degradation kinetics of the strain during the algae lysis process and established corresponding models. The algae lysis rate of strain XXG was 60.60% within 6 days under the conditions of bacteria-algae volume ratio of 5.6%, temperature of 30 ℃ and logarithmic growth of Microcystis aeruginosa. The growth curve of strain XXG in the algae lysis system was in accordance with the Polynomial model, in which the cell density (OD600) of the strain reached the maximum 0.799 on the 3.5th day, and the specific growth rate kinetics of the strain was in line with the one-dimensional linear model. In the symbiotic state of bacteria and algae, both of the exponential decay kinetic model and primary reaction kinetic model could effectively predict and simulate the change of chlorophyll-a concentration in the algae lysis system. The changes of total nitrogen and total phosphorus in algal cells and the algae lysis time were in accordance with the one-dimensional kinetic models.
更新日期/Last Update: 2023-12-01