Multiphase partitioning airlift bioreactors: An alternative for hydrocarbon biodegradation in contaminated environments

Valdivia-Rivera, Sergio; Lizardi-Jiménez, Manuel Alejandro; Medina-Moreno, S.A.; Sánchez-Vázquez, Victor

doi:10.1016/bs.ache.2019.01.006

Cited by 5 publications

(3 citation statements)

References 48 publications

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“…A photobioreactor is a device that carries out the growth of microalgae dependent on variables such as light intensity, pH, and dissolved oxygen, as in rivers or lakes; however, in photobioreactors, it is done in a controlled way, whose primary objective is the guided removal of nutrients [45]. In this sense, the treatment of wastewater employing bioreactors is a potentially useful alternative for the control of water quality parameters since these bioreactors are a subsystem of water sources [46]. For this reason, microalgae are usually produced in photobioreactors in a controlled manner as a way of controlling the contamination of water sources [47,48].…”

Section: Problem Statementmentioning

confidence: 99%

A turbidity sensor development based on NL-PI observers: Experimental application to the control of a Sinaloa’s River Spirulina maxima cultivation

et al. 2020

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This article addresses the problem of controlling the growth of microalgae originating in Mexican rivers, especially in the state of Sinaloa, Culiacan River. For this purpose, a robust, high-gain nonlinear observer is proposed to estimate the unknown disturbance in the cultivation of mixotrophic microalgae with the presence of organic nutrients. Once a perturbation function related to the change of ambient light is estimated, an output feedback control for the photobioreactor is proposed, in which through Lyapunov’s convergence functions, the final boundary stability conditions are obtained. Thus, a turbidity sensor was designed for Spirulina platensis, a native microalgae of Culiacan River, which is presented using the MATLAB-Arduino programming environment. This sensor is calibrated using biomass culture and is a low-cost device. Through the numerical study, the feasibility and performance of the control and the observer are evaluated. Finally, real-time experimental evaluations are made based on the literature, studying the use of robust controllers in a photobioreactor with a mixed culture, in the presence of environmental changes in lighting.

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Section: Problem Statementmentioning

confidence: 99%

A turbidity sensor development based on NL-PI observers: Experimental application to the control of a Sinaloa’s River Spirulina maxima cultivation

et al. 2020

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“…Due to the absence of mechanical moving parts, both EL-ALRs and IL-ALRs are considered lowshear mixing devices, and therefore, are widely used as aerobic fermenters in many shear-sensitive biochemical processes, e.g., the production of enzymes, antibiotics, proteins, biomass, and other biotechnology products (Chisti, 1989), and in other treatment processes as degradation of hydrocarbons (Lizardi-Jiménez & Gutiérrez-Rojas, 2011;Lizardi-Jiménez et al, 2015;Sánchez-Vázquez et al, 2017;Valdivia-Rivera et al, 2019;Medina-Moreno et al, 2020;Sandoval-Herazo et al, 2020). However, one of the main advantages of IL-ALRs with respect to EL-ALRs is their simplicity in mechanical design and geometry (Verlaan, 1987).…”

Section: Introductionmentioning

confidence: 99%

Hydrodynamics evaluation of an internal-loop airlift reactor with Newtonian and shear-thinning fluids: Experimentation vs CFD simulation

Guadarrama-Pérez

Márquez-Baños²,

Valencia-López³

et al. 2022

RMIQ

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“…Petroleum pollution is one of the most important pollutants that affect water quality in different parts of the world (Xu et al, 2018). In recent decades, the increasing development of industrial activities on the one hand, and non-compliance with environmental requirements on the other hand has caused considerable amounts of hydrocarbon pollutants to enter the environment especially in aquatic environments (Valdivia-Rivera et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Role of Composite Adsorbents Based on Polyurethane/nanoclay Foam in Removing Organic Contaminants in a Continuous Treatment Process.

khorsi

2021

Preprint

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This study was conducted to use nanoclay as an adsorbent for waste oil treatment and removal of oil contaminants from aquatic environments. Nanoclay was dispersed in a polyurethane foam bed. The results of morphological and structural investigation revealed that by adding nanoclay, the regular structure of the foam was decreased compared with the pure polyurethane foam and the diameter of the cells was increased. The presence of the nanoclay was also confirmed by the FTIR analysis, and the possibility of nanoparticle distribution was analyzed by XRD. To perform the experiments, a vessel was built to hold the adsorbent. The emulsions of crude oil with different concentrations were made and passed through the vessel containing 35 g of adsorbent with different flow rates. The proper flow rate and concentration of crude oil in the input feed were optimized by 50 L/hour and 500 mg/L, respectively. After performing the adsorption process, the turbidity analysis was firstly performed on the samples and the proper samples were then analyzed by COD, TOC, and TOG/TPH. The results of the LPSA analysis indicated that the diameter of the dispersed phase particles in the input feed was between 0.3 and 5 μm. The results of TOG/TPH analysis showed that the removal efficiency of oil, grease, and hydrocarbons both reached about 99% and the efficiency of COD and TOC both reached 94%. The experiment was also performed on the removal of diesel fuel from the aquatic environment, and the results of COD and turbidity analyses showed an efficiency of 96% and 98%, respectively.

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Multiphase partitioning airlift bioreactors: An alternative for hydrocarbon biodegradation in contaminated environments

Cited by 5 publications

References 48 publications

A turbidity sensor development based on NL-PI observers: Experimental application to the control of a Sinaloa’s River Spirulina maxima cultivation

A turbidity sensor development based on NL-PI observers: Experimental application to the control of a Sinaloa’s River Spirulina maxima cultivation

Hydrodynamics evaluation of an internal-loop airlift reactor with Newtonian and shear-thinning fluids: Experimentation vs CFD simulation

Role of Composite Adsorbents Based on Polyurethane/nanoclay Foam in Removing Organic Contaminants in a Continuous Treatment Process.

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