ABACO: A New Model of Microalgae-Bacteria Consortia for Biological Treatment of Wastewaters

被引:54
作者
Sanchez-Zurano, Ana [1 ]
Rodriguez-Miranda, Enrique [2 ]
Guzman, Jose Luis [3 ]
Acien-Fernandez, Francisco Gabriel [1 ]
Fernandez-Sevilla, Jose M. [1 ]
Grima, Emilio Molina [1 ]
机构
[1] Univ Almeria, Dept Chem Engn, CIESOL, ceia3, Ctra Sacramento S-N, Almeria 04120, Spain
[2] Univ Brescia, Dept Mech & Ind Engn, Via Branze 38, I-25123 Brescia, Italy
[3] Univ Almeria, Dept Informat, CIESOL, ceiA3, Ctra Sacramento S-N, Almeria 04120, Spain
来源
APPLIED SCIENCES-BASEL | 2021年 / 11卷 / 03期
基金
欧盟地平线“2020”;
关键词
microalgae; bacteria; modelling; wastewater treatment; nutrients; photobioreactor;
D O I
10.3390/app11030998
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Microalgae-bacteria consortia have been proposed as alternatives to conventional biological processes to treat different types of wastewaters, including animal slurry. In this work, a microalgae-bacteria consortia (ABACO) model for wastewater treatment is proposed, it being calibrated and validated using pig slurry. The model includes the most relevant features of microalgae, such as light dependence, endogenous respiration, and growth and nutrient consumption as a function of nutrient availability (especially inorganic carbon), in addition to the already reported features of heterotrophic and nitrifying bacteria. The interrelation between the different populations is also included in the model, in addition to the simultaneous release and consumption of the most relevant compounds, such as oxygen and carbon dioxide. The implementation of the model has been performed in MATLAB software; the calibration of model parameters was carried out using genetic algorithms. The ABACO model allows one to simulate the dynamics of different components in the system, and the relative proportions of microalgae, heterotrophic bacteria, and nitrifying bacteria. The percentage of each microbial population obtained with the model was confirmed by respirometric techniques. The proposed model is a powerful tool for the development of microalgae-related wastewater treatment processes, both to maximize the production of microalgal biomass and to optimize the wastewater treatment capacity.
引用
收藏
页码:1 / 24
页数:23
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