Constructed wetlands operated as bioelectrochemical systems for the removal of organic micropollutants

Hartl, Marco; García, Joan; Matamoros, Víctor; Fernandez-Gatell, Marta; Rousseau, Diederik P.L.; Laing, Gijs Du; Garfí, Marianna; Puigagut, Jaume

doi:10.1016/j.chemosphere.2021.129593

Cited by 32 publications

(11 citation statements)

References 67 publications

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“…For diclofenac, the removal efficiencies in the three types of reactors decreased when the voltage was increased to 0.3 V. This could be attributed to the electrosorption at the electrode with opposite charge [ 33 ], which led to diclofenac being released back when it was adsorbed and saturated by the electrode. When the voltage was increased to 0.6 V, the removal efficiencies of diclofenac in Rac (39.3%) and Rca (49.8%) were higher than that in Rop (27.9%), but still not ideal, meaning that weak electric stimulation could not promote the removal of diclofenac by microorganisms.…”

Section: Discussionmentioning

confidence: 99%

Impact of Voltage Application on Degradation of Biorefractory Pharmaceuticals in an Anaerobic–Aerobic Coupled Upflow Bioelectrochemical Reactor

Zhang

Ailijiang

et al. 2022

IJERPH

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Diclofenac, ibuprofen, and carbamazepine are frequently detected in the environment, where they pose a threat to organisms and ecosystems. We developed anaerobic–aerobic coupled upflow bioelectrochemical reactors (AO-UBERs) with different voltages, hydraulic retention times (HRTs), and types of electrode conversion, and evaluated the ability of the AO-UBERs to remove the three pharmaceuticals. This study showed that when a voltage of 0.6 V was applied, the removal rate of ibuprofen was slightly higher in the system with aerobic cathodic and anaerobic anodic chambers (60.2 ± 11.0%) with HRT of 48 h than in the control systems, and the removal efficiency reached stability faster. Diclofenac removal was 100% in the 1.2 V system with aerobic anodic and anaerobic cathodic chambers, which was greater than in the control system (65.5 ± 2.0%). The contribution of the aerobic cathodic–anodic chambers to the removal of ibuprofen and diclofenac was higher than that of the anaerobic cathodic–anodic chambers. Electrical stimulation barely facilitated the attenuation of carbamazepine. Furthermore, biodegradation-related species (Methyloversatilis, SM1A02, Sporomusa, and Terrimicrobium) were enriched in the AO-UBERs, enhancing pharmaceutical removal. The current study sheds fresh light on the interactions of bacterial populations with the removal of pharmaceuticals in a coupled system.

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Section: Discussionmentioning

confidence: 99%

Impact of Voltage Application on Degradation of Biorefractory Pharmaceuticals in an Anaerobic–Aerobic Coupled Upflow Bioelectrochemical Reactor

Zhang

Ailijiang

et al. 2022

IJERPH

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“…In urban areas, water resources are becoming increasingly polluted, mainly due to continued population growth, urbanization and industrialization (Hartl et al, 2021; Ji et al, 2022; Sanjrani MA, 2020). Currently, 54% of the world's population lives in urban areas, and this proportion is expected to increase to 66% by 2050 [108].…”

Section: Management Of Water Scarcitymentioning

confidence: 99%

Green technology for water scarcity: An entrepreneurial business may bring transformation in water management practices

Siddique

Ahmed

Rani

2023

Irrigation and Drainage

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Despite the contributions of modern business practices to environmentally sustainable transformation, there is not enough information on different types of green technologies and their applications. Therefore, it is essential to identify and classify business models that focus on the management practices of green technology. While the literature on green technology business models has received increasing attention over the last decade, interdisciplinary research into this growing phenomenon is still in its infancy and fragmented. The study focuses on the need for green technology for water management worldwide. Such management practices for green technology represent a research gap in the study area because no one has worked in this field before. There should be research to address people's management practices of green entrepreneurial business. The literature highlights that the issue of water crises may be minimized with the management practices of green entrepreneurial business and by applying global green water treatment techniques. The authors believe that this study would be very beneficial for future research on policymaking based on management practices of green technology that promote environmental sustainability through a green business environment.

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“…The removal of some micropollutants has been demonstrated using BES in several previous studies. In a study conducted by [64], it was demonstrated that constructed wetland-MEC hybrid system operated at pilot-scale could successfully remove several micropollutants individually and their mixtures. The removal of four pharmaceutical compounds carbamazepine (CBZ), diclofenac (DCF), ibuprofen (IBU) and naproxen (NPX) were monitored in a constructed wetland -BES hybrid environment and the removal of all of these micropollutant compounds was observed (Table 5) [64].…”

Section: Removal Of Micropollutants Using Besmentioning

confidence: 99%

Expedited Biodegradation of Organic Pollutants and Refractory Compounds Using Bio-Electrochemical Systems

Fernando¹,

Kyazze²,

Ahmed³

et al. 2022

Biodegradation Technology of Organic and Inorganic Pollutants

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Biodegradation of xenobiotics is often considered to be a slow process. This is especially true if the xenobiotic in question is polymeric in nature, contains many chemical substituent groups or generally exhibits high level of toxicity to environmental microbiota. Due to this observed slow kinetics of degradation, removal of many xenobiotics from contaminated environments using conventional bioremediation technologies is a difficult problem. To alleviate this, alternative technologies showing improved kinetics of biodegradation are sought by the scientific community. One such promising approach is the usage of the novel technology of bio-electrochemical systems for improved degradation of xenobiotics. Due to the newness of this technology and affiliated methods, not much information about its usage for biodegradation of xenobiotics is available in literature. Therefore, this chapter aims to address that gap and bring about a comprehensive analysis on the usage of bio-electrochemical systems for rapid removal of xenobiotic contaminants from the environment.

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Constructed wetlands operated as bioelectrochemical systems for the removal of organic micropollutants

Cited by 32 publications

References 67 publications

Impact of Voltage Application on Degradation of Biorefractory Pharmaceuticals in an Anaerobic–Aerobic Coupled Upflow Bioelectrochemical Reactor

Impact of Voltage Application on Degradation of Biorefractory Pharmaceuticals in an Anaerobic–Aerobic Coupled Upflow Bioelectrochemical Reactor

Green technology for water scarcity: An entrepreneurial business may bring transformation in water management practices

Expedited Biodegradation of Organic Pollutants and Refractory Compounds Using Bio-Electrochemical Systems

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