Third generation in bio-electrochemical system research – A systematic review on mechanisms for recovery of valuable by-products from wastewater

Jadhav, Dipak A.; Ray, Soumen; Ghangrekar, Makarand M.

doi:10.1016/j.rser.2017.03.096

Cited by 147 publications

(28 citation statements)

References 102 publications

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“…BESs are aimed at bio-energy generation in the form of methane and bio-hydrogen while treating wastewater in an anodic chamber. The potential of BES to produce intermittent chemicals and high-value derivatives has immensely been explored since last decade by adopting modified reaction kinetics (Jadhav et al 2017). The MFC is capable of converting the chemical energy of dissolved organic materials directly into electrical energy, while MEC is capable of generating a product (e.g.…”

Section: Bioelectrochemical Systemsmentioning

confidence: 99%

Achieving energy neutrality in wastewater treatment plants through energy savings and enhancing renewable energy production

Maktabifard

Zaborowska

Mąkinia

2018

Rev Environ Sci Biotechnol

217

106

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Wastewater treatment plants (WWTPs) consume high amounts of energy which is mostly purchased from the grid. During the past years, many ongoing measures have taken place to analyze the possible solutions for both reducing the energy consumption and increasing the renewable energy production in the plants. This review contains all possible aspects which may assist to move towards energy neutrality in WWTPs. The sources of energy in wastewater were introduced and different indicators to express the energy consumption were discussed with examples of the operating WWTPs worldwide. Furthermore, the pathways for energy consumption reductions were reviewed including the operational strategies and the novel technological upgrades of the wastewater treatment processes. Then the methods of recovering the potential energy hidden in wastewater were described along with application of renewable energies in WWTPs. The available assessment methods, which may help in analyzing and comparing WWTPs in terms of energy and greenhouse gas emissions were introduced. Eventually, successful case studies on energy self-sufficiency of WWTPs were listed and the innovative projects in this area were presented.

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Section: Bioelectrochemical Systemsmentioning

confidence: 99%

Achieving energy neutrality in wastewater treatment plants through energy savings and enhancing renewable energy production

Maktabifard

Zaborowska

Mąkinia

2018

Rev Environ Sci Biotechnol

217

106

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“…After the inoculation, the BES-FC was operated in a continuation of five experimental phases with their key operating parameters shown in Table 1. 1 Air-cathode of the FC replaced. 2 A non-porous rubber separator was added as physical separation between biocathode and anode, although both chambers remained fluidically connected through the recirculation line (Figure 1).…”

Section: Operational Conditionsmentioning

confidence: 99%

“…Bio-electrochemical systems (BES) are a novel technology based on electrochemical processes where the oxidation and/or reduction reactions are catalyzed by microorganisms [ 1 ]. BES allow for the treatment of various domestic and industrial wastewaters with concomitant recovery of reusable products such as heavy metals [ 2 , 3 ], nutrients [ 4 , 5 ] and organic compounds [ 6 , 7 ].…”

Section: Introductionmentioning

confidence: 99%

Implementation of a Sulfide–Air Fuel Cell Coupled to a Sulfate-Reducing Biocathode for Elemental Sulfur Recovery

Blázquez

Gabriel

Baeza

et al. 2021

IJERPH

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Bio-electrochemical systems (BES) are a flexible biotechnological platform that can be employed to treat several types of wastewaters and recover valuable products concomitantly. Sulfate-rich wastewaters usually lack an electron donor; for this reason, implementing BES to treat the sulfate and the possibility of recovering the elemental sulfur (S0) offers a solution to this kind of wastewater. This study proposes a novel BES configuration that combines bio-electrochemical sulfate reduction in a biocathode with a sulfide–air fuel cell (FC) to recover S0. The proposed system achieved high elemental sulfur production rates (up to 386 mg S0-S L−1 d−1) with 65% of the sulfate removed recovered as S0 and a 12% lower energy consumption per kg of S0 produced (16.50 ± 0.19 kWh kg−1 S0-S) than a conventional electrochemical S0 recovery system.

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“…Bio-electrochemical conversion process is involved in production of electricity from wastewater and effluent, in which catalytic commotion of microorganisms utilize the organic matter and produce the electrons that may be received by cathodes to generate the electricity [57,78]. Organic electron donors are catalyzed for oxidation in the anodic chamber by electrochemical bacteria, and electrons are supplied to the anode, which can be arrested in the form of bio-electricity [79]. In this process, exchange of protons, generated from anodic chamber to cathodic chamber, where these protons are involved in the production of cherished products [69].…”

Section: Bioelectricitymentioning

confidence: 99%

Renewable Energy Products through Bioremediation of Wastewater

et al. 2020

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Due to rapid urbanization and industrialization, the population density of the world is intense in developing countries. This overgrowing population has resulted in the production of huge amounts of waste/refused water due to various anthropogenic activities. Household, municipal corporations (MC), urban local bodies (ULBs), and industries produce a huge amount of waste water, which is discharged into nearby water bodies and streams/rivers without proper treatment, resulting in water pollution. This mismanaged treatment of wastewater leads to various challenges like loss of energy to treat the wastewater and scarcity of fresh water, beside various water born infections. However, all these major issues can provide solutions to each other. Most of the wastewater generated by ULBs and industries is rich in various biopolymers like starch, lactose, glucose lignocellulose, protein, lipids, fats, and minerals, etc. These biopolymers can be converted into sustainable biofuels, i.e., ethanol, butanol, biodiesel, biogas, hydrogen, methane, biohythane, etc., through its bioremediation followed by dark fermentation (DF) and anaerobic digestion (AD). The key challenge is to plan strategies in such a way that they not only help in the treatment of wastewater, but also produce some valuable energy driven products from it. This review will deal with various strategies being used in the treatment of wastewater as well as for production of some valuable energy products from it to tackle the upcoming future demands and challenges of fresh water and energy crisis, along with sustainable development.

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Third generation in bio-electrochemical system research – A systematic review on mechanisms for recovery of valuable by-products from wastewater

Cited by 147 publications

References 102 publications

Achieving energy neutrality in wastewater treatment plants through energy savings and enhancing renewable energy production

Achieving energy neutrality in wastewater treatment plants through energy savings and enhancing renewable energy production

Implementation of a Sulfide–Air Fuel Cell Coupled to a Sulfate-Reducing Biocathode for Elemental Sulfur Recovery

Renewable Energy Products through Bioremediation of Wastewater

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