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Singh NK, Mathuriya AS, Mehrotra S, Pandit S, Singh A, Jadhav D. Advances in bioelectrochemical systems for bio-products recovery. ENVIRONMENTAL TECHNOLOGY 2024; 45:3853-3876. [PMID: 37491760 DOI: 10.1080/09593330.2023.2234676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Accepted: 06/28/2023] [Indexed: 07/27/2023]
Abstract
Bioelectrochemical systems (BES) have emerged as a sustainable and highly promising technology that has garnered significant attention from researchers worldwide. These systems provide an efficient platform for the removal and recovery of valuable products from wastewater, with minimal or no net energy loss. Among the various types of BES, microbial fuel cells (MFCs) are a notable example, utilizing microbial biocatalytic activities to generate electrical energy through the degradation of organic matter. Other BES variants include microbial desalination cells (MDCs), microbial electrolysis cells (MECs), microbial electrosynthesis cells (MXCs), microbial solar cells (MSCs), and more. BESs have demonstrated remarkable potential in the recovery of diverse products such as hydrogen, methane, volatile fatty acids, precious nutrients, and metals. Recent advancements in scaling up BESs have facilitated a more realistic assessment of their net energy recovery and resource yield in real-world applications. This comprehensive review focuses on the practical applications of BESs, from laboratory-scale developments to their potential for industrial commercialization. Specifically, it highlights successful examples of value-added product recovery achieved through various BES configurations. Additionally, this review critically evaluates the limitations of BESs and provides suggestions to enhance their performance at a larger scale, enabling effective implementation in real-world scenarios. By providing a thorough analysis of the current state of BES technology, this review aims to emphasize the tremendous potential of these systems for sustainable wastewater treatment and resource recovery. It underscores the significance of bridging the gap between laboratory-scale achievements and industrial implementation, paving the way for a more sustainable and resource-efficient future.
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Affiliation(s)
- Neeraj Kumar Singh
- Bio-POSITIVE, Department of Life Sciences, School of Basic Sciences and Research, Sharda University, Greater Noida, India
| | - Abhilasha Singh Mathuriya
- Bio-POSITIVE, Department of Life Sciences, School of Basic Sciences and Research, Sharda University, Greater Noida, India
- Ministry of Environment, Forest and Climate Change, New Delhi, India
| | - Smriti Mehrotra
- Bio-POSITIVE, Department of Life Sciences, School of Basic Sciences and Research, Sharda University, Greater Noida, India
| | - Soumya Pandit
- Bio-POSITIVE, Department of Life Sciences, School of Basic Sciences and Research, Sharda University, Greater Noida, India
| | - Anoop Singh
- Department of Scientific and Industrial Research (DSIR), Government of India, New Delhi, India
| | - Deepak Jadhav
- Department of Agricultural Engineering, Maharashtra Institute of Technology Aurangabad, Maharashtra, India
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2
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Wang H, Zhou Q. Potential application of bioelectrochemical systems in cold environments. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 927:172385. [PMID: 38604354 DOI: 10.1016/j.scitotenv.2024.172385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 03/17/2024] [Accepted: 04/08/2024] [Indexed: 04/13/2024]
Abstract
Globally, more than half of the world's regions and populations inhabit psychrophilic and seasonally cold environments. Lower temperatures can inhibit the metabolic activity of microorganisms, thereby restricting the application of traditional biological treatment technologies. Bioelectrochemical systems (BES), which combine electrochemistry and biocatalysis, can enhance the resistance of microorganisms to unfavorable environments through electrical stimulation, thus showing promising applications in low-temperature environments. In this review, we focus on the potential application of BES in such environments, given the relatively limited research in this area due to temperature limitations. We select microbial fuel cells (MFC), microbial electrolytic cells (MEC), and microbial electrosynthesis cells (MES) as the objects of analysis and compare their operational mechanisms and application fields. MFC mainly utilizes the redox potential of microorganisms during substance metabolism to generate electricity, while MEC and MES promote the degradation of refractory substances by augmenting the electrode potential with an applied voltage. Subsequently, we summarize and discuss the application of these three types of BES in low-temperature environments. MFC can be employed for environmental remediation as well as for biosensors to monitor environmental quality, while MEC and MES are primarily intended for hydrogen and methane production. Additionally, we explore the influencing factors for the application of BES in low-temperature environments, including operational parameters, electrodes and membranes, external voltage, oxygen intervention, and reaction devices. Finally, the technical, economic, and environmental feasibility analyses reveal that the application of BES in low-temperature environments has great potential for development.
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Affiliation(s)
- Hui Wang
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Qixing Zhou
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China.
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Lee H, Hyun J. Biophotovoltaic living hydrogel of an ion-crosslinked carboxymethylated cellulose nanofiber/alginate. Carbohydr Polym 2023; 321:121299. [PMID: 37739532 DOI: 10.1016/j.carbpol.2023.121299] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 08/02/2023] [Accepted: 08/13/2023] [Indexed: 09/24/2023]
Abstract
Due to the low electrical power generation in liquid cultures of photosynthetic microalgae, a solid medium culture is demanded for the efficient design of biophotovoltaic (BPV) cells. In particular, the conductivity of the culture medium and the contact of microalgae with an electrode are crucial in harvesting electrons in BPV cells. Here, an ion-crosslinked carboxymethylated cellulose nanofiber (CM-CNF)/alginate is proposed as a living hydrogel for the green power generation of Chlorella vulgaris embedded in the hydrogel. The hydrogel crosslinked with Ca2+ and Fe3+ ions showed more efficient BPV properties than the hydrogel crosslinked with only Ca2+ due to the increase of conductivity. The efficient transport of electrons generated by C. vulgaris improves the power generation of BPV cells. Moreover, the fluid channels imprinted in the living hydrogel maintain the viability of C. vulgaris even under the ambient environment by preventing the solid medium from being dried out.
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Affiliation(s)
- Hwarueon Lee
- Department of Biosystems and Biomaterials Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea; Department of Agriculture, Forestry, and Bioresources, Seoul National University, Seoul 08826, Republic of Korea
| | - Jinho Hyun
- Department of Biosystems and Biomaterials Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea; Department of Agriculture, Forestry, and Bioresources, Seoul National University, Seoul 08826, Republic of Korea; Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea.
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Zhang C, Zhao G, Jiao Y, Quan B, Lu W, Su P, Tang Y, Wang J, Wu M, Xiao N, Zhang Y, Tong J. Critical analysis on the transformation and upgrading strategy of Chinese municipal wastewater treatment plants: Towards sustainable water remediation and zero carbon emissions. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 896:165201. [PMID: 37406711 DOI: 10.1016/j.scitotenv.2023.165201] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 06/13/2023] [Accepted: 06/27/2023] [Indexed: 07/07/2023]
Abstract
In the light of circular economy aspects, processing of large-scale municipal wastewater treatment plants (WWTPs) needs reconsideration to limit the overuse of energy, implement of non-green technologies and emit abundant greenhouse gas. Along with the huge increase in the worldwide population and agro-industrial activities, global environmental organizations have issued several recent roles to boost scientific and industrial communities towards sustainable development. Over recent years, China has imposed national and regional standards to control and manage the discharged liquid and solid waste, as well as to achieve carbon peaking and carbon neutrality. The aim of this report is to analyze the current state of Chinese WWTPs routing and related issues such as climate change and air pollution. The used strategies in Chinese WWTPs and upgrading trends were critically discussed. Several points were addressed including the performance, environmental impact, and energy demand of bio-enhanced technologies, including hydrolytic acidification pretreatment, efficient (toxic) strain treatment, and anaerobic ammonia oxidation denitrification technology, as well as advanced treatment technologies composed of physical and chemical treatment technologies, biological treatment technology and combined treatment technology. Discussion and critical analysis based on the current data and national policies were provided and employed to develop the future development trend of municipal WWTPs in China from the construction of sustainable and "Zero carbon" WWTPs.
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Affiliation(s)
- Chunhui Zhang
- College of Chemistry and Environmental Engineering, China University of Mining and Technology-Beijing, Beijing 100083, China.
| | - Guifeng Zhao
- College of Chemistry and Environmental Engineering, China University of Mining and Technology-Beijing, Beijing 100083, China
| | - Yanan Jiao
- College of Chemistry and Environmental Engineering, China University of Mining and Technology-Beijing, Beijing 100083, China
| | - Bingxu Quan
- College of Chemistry and Environmental Engineering, China University of Mining and Technology-Beijing, Beijing 100083, China
| | - Wenjing Lu
- College of Chemistry and Environmental Engineering, China University of Mining and Technology-Beijing, Beijing 100083, China
| | - Peidong Su
- College of Chemistry and Environmental Engineering, China University of Mining and Technology-Beijing, Beijing 100083, China.
| | - Yuanhui Tang
- College of Chemistry and Environmental Engineering, China University of Mining and Technology-Beijing, Beijing 100083, China
| | - Jianbing Wang
- College of Chemistry and Environmental Engineering, China University of Mining and Technology-Beijing, Beijing 100083, China
| | - Mengmeng Wu
- Zhongguancun Summit Enviro-Protection Co., Ltd., Beijing 100081, China
| | - Nan Xiao
- Zhongguancun Summit Enviro-Protection Co., Ltd., Beijing 100081, China
| | - Yizhen Zhang
- Zhongguancun Summit Enviro-Protection Co., Ltd., Beijing 100081, China
| | - Jinghua Tong
- Zhongguancun Summit Enviro-Protection Co., Ltd., Beijing 100081, China
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Syed Z, Sogani M, Rajvanshi J, Sonu K. Microbial Biofilms for Environmental Bioremediation of Heavy Metals: a Review. Appl Biochem Biotechnol 2023; 195:5693-5711. [PMID: 36576654 DOI: 10.1007/s12010-022-04276-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/16/2022] [Indexed: 12/29/2022]
Abstract
Heavy metal pollution caused due to various industrial and mining activities poses a serious threat to all forms of life in the environment because of the persistence and toxicity of metal ions. Microbial-mediated bioremediation including microbial biofilms has received significant attention as a sustainable tool for heavy metal removal as it is considered safe, effective, and feasible. The biofilm matrix is dynamic, having microbial cells as major components with constantly changing and evolving microenvironments. This review summarizes the bioremediation potential of bacterial biofilms for different metal ions. The composition and mechanism of biofilm formation along with interspecies communication among biofilm-forming bacteria have been discussed. The interaction of biofilm-associated microbes with heavy metals takes place through a variety of mechanisms. These include biosorption and bioaccumulation in which the microbes interact with the metal ions leading to their conversion from a highly toxic form to a less toxic form. Such interactions are facilitated via the negative charge of the extracellular polymeric substances on the surface of the biofilm with the positive charge of the metal ions and the high cell densities and high concentrations of cell-cell signaling molecules within the biofilm matrix. Furthermore, the impact of the anodic and cathodic redox potentials in a bioelectrochemical system (BES) for the reduction, removal, and recovery of numerous heavy metal species provides an interesting insight into the bacterial biofilm-mediated bioelectroremediation process. The review concludes that biofilm-linked bioremediation is a viable option for the mitigation of heavy metal pollution in water and ecosystem recovery.
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Affiliation(s)
- Zainab Syed
- Department of Biosciences, Manipal University Jaipur, Jaipur, 303007, Rajasthan, India
| | - Monika Sogani
- Department of Biosciences, Manipal University Jaipur, Jaipur, 303007, Rajasthan, India.
| | - Jayana Rajvanshi
- Department of Biosciences, Manipal University Jaipur, Jaipur, 303007, Rajasthan, India
| | - Kumar Sonu
- Department of Mechanical Engineering, Kashi Institute of Technology, Varanasi, 221307, Uttar Pradesh, India
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6
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Ge-Zhang S, Cai T, Song M. Life in biophotovoltaics systems. FRONTIERS IN PLANT SCIENCE 2023; 14:1151131. [PMID: 37615025 PMCID: PMC10444202 DOI: 10.3389/fpls.2023.1151131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 07/03/2023] [Indexed: 08/25/2023]
Abstract
As the most suitable potential clean energy power generation technology, biophotovoltaics (BPV) not only inherits the advantages of traditional photovoltaics, such as safety, reliability and no noise, but also solves the disadvantages of high pollution and high energy consumption in the manufacturing process, providing new functions of self-repair and natural degradation. The basic idea of BPV is to collect light energy and generate electric energy by using photosynthetic autotrophs or their parts, and the core is how these biological materials can quickly and low-loss transfer electrons to the anode through mediators after absorbing light energy and generating electrons. In this mini-review, we summarized the biological materials widely used in BPV at present, mainly cyanobacteria, green algae, biological combinations (using multiple microorganisms in the same BPV system) and isolated products (purified thylakoids, chloroplasts, photosystem I, photosystem II), introduced how researchers overcome the shortcomings of low photocurrent output of BPV, pointed out the limitations that affected the development of BPV' biological materials, and put forward reasonable assumptions accordingly.
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Affiliation(s)
| | - Taoyang Cai
- Aulin College, Northeast Forestry University, Harbin, China
| | - Mingbo Song
- College of Forestry, Northeast Forestry University, Harbin, China
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7
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Bayode AA, Olisah C, Emmanuel SS, Adesina MO, Koko DT. Sequestration of steroidal estrogen in aqueous samples using an adsorption mechanism: a systemic scientometric review. RSC Adv 2023; 13:22675-22697. [PMID: 37502828 PMCID: PMC10369132 DOI: 10.1039/d3ra02296j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 07/13/2023] [Indexed: 07/29/2023] Open
Abstract
Steroidal estrogens (SEs) remain one of the notable endocrine disrupting chemicals (EDCs) that pose a significant threat to the aquatic environment in this era owing to their interference with the normal metabolic functions of the human body systems. They are currently identified as emerging contaminants of water sources. The sources of SEs are either natural or synthetic active ingredients in oral contraceptive and hormonal replacement therapy drugs and enter the environment primarily from excretes in the form of active free conjugate radicals, resulting in numerous effects on organisms in aquatic habitats and humans. The removal of SEs from water sources is of great importance because of their potential adverse effects on aquatic ecosystems and human health. Adsorption techniques have gained considerable attention as effective methods for the removal of these contaminants. A systemic review and bibliometric analysis of the application of adsorption for sequestration were carried out. Metadata for publications on SE removal utilizing adsorbents were obtained from the Web of Science (WoS) from January 1, 1990, to November 5, 2022 (107 documents) and Scopus databases from January 1, 1949, to November 5, 2022 (77 documents). In total, 137 documents (134 research and 4 review articles) were used to systematically map bibliometric indicators, such as the number of articles, most prolific countries, most productive scholars, and most cited articles, confirming this to be a growing research area. The use of different adsorbents, include activated carbon graphene-based materials, single and multi-walled carbon nanotubes, biochar, zeolite, and nanocomposites. The adsorption mechanism and factors affecting the removal efficiency, such as pH, temperature, initial concentration, contact time and adsorbent properties, were investigated in this review. This review discusses the advantages and limitations of different adsorbents, including their adsorption capacities, regenerative potential, and cost-effectiveness. Recent advances and innovations in adsorption technology, such as functionalized materials and hybrid systems, have also been highlighted. Overall, the bibliographic analysis provides a comprehensive overview of the adsorption technique for the removal of SEs from other sources, serving as a valuable resource for researchers and policymakers involved in the development of efficient and sustainable strategies to mitigate the effects of these emerging contaminants.
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Affiliation(s)
- Ajibola A Bayode
- Department of Chemical Sciences, Faculty of Natural Sciences, Redeemer's University P.M.B. 230 232101 Ede Nigeria
| | - Chijioke Olisah
- Institute for Coastal and Marine Research, Nelson Mandela University P. O Box 77000 Gqeberha 6031 South Africa
| | - Stephen Sunday Emmanuel
- Department of Industrial Chemistry, Faculty of Physical Sciences, University of Ilorin P.M.B. 1515 Ilorin Nigeria
| | | | - Daniel Terlanga Koko
- Department of Chemical Sciences, Faculty of Natural Sciences, Redeemer's University P.M.B. 230 232101 Ede Nigeria
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Narayanan M, Ali SS, El-Sheekh M. A comprehensive review on the potential of microbial enzymes in multipollutant bioremediation: Mechanisms, challenges, and future prospects. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 334:117532. [PMID: 36801803 DOI: 10.1016/j.jenvman.2023.117532] [Citation(s) in RCA: 28] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 02/07/2023] [Accepted: 02/15/2023] [Indexed: 06/18/2023]
Abstract
Industrialization and other human activity represent significant environmental hazards. Toxic contaminants can harm a comprehensive platform of living organisms in their particular environments. Bioremediation is an effective remediation process in which harmful pollutants are eliminated from the environment using microorganisms or their enzymes. Microorganisms in the environment often create a variety of enzymes that can eliminate hazardous contaminants by using them as a substrate for development and growth. Through their catalytic reaction mechanism, microbial enzymes may degrade and eliminate harmful environmental pollutants and transform them into non-toxic forms. The principal types of microbial enzymes which can degrade most hazardous environmental contaminants include hydrolases, lipases, oxidoreductases, oxygenases, and laccases. Several immobilizations, genetic engineering strategies, and nanotechnology applications have been developed to improve enzyme performance and reduce pollution removal process costs. Until now, the practically applicable microbial enzymes from various microbial sources and their ability to degrade multipollutant effectively or transformation potential and mechanisms are unknown. Hence, more research and further studies are required. Additionally, there is a gap in the suitable approaches considering toxic multipollutants bioremediation using enzymatic applications. This review focused on the enzymatic elimination of harmful contaminants in the environment, such as dyes, polyaromatic hydrocarbons, plastics, heavy metals, and pesticides. Recent trends and future growth for effectively removing harmful contaminants by enzymatic degradation are also thoroughly discussed.
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Affiliation(s)
- Mathiyazhagan Narayanan
- Division of Research and Innovations, Department of Biotechnology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Science, Chennai, 602 105, Tamil Nadu, India
| | - Sameh Samir Ali
- Botany Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt; Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Mostafa El-Sheekh
- Botany Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt.
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Moghiseh Z, Xiao Y, Kalantar M, Barati B, Ghahrchi M. Role of bio-electrochemical technology for enzyme activity stimulation in high-consumption pharmaceuticals biodegradation. 3 Biotech 2023; 13:119. [PMID: 37025753 PMCID: PMC10070591 DOI: 10.1007/s13205-023-03539-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 03/28/2023] [Indexed: 04/05/2023] Open
Abstract
Active pharmaceutical ingredients (APIs) and their intermediate residues have recently been considered a serious concern. Among technologies, bio-electrochemical technologies (BETs) have stimulated the production of bio-electrical energy. This review aims to examine the benefit and mechanism of BETs on the degradation of high-consumption pharmaceutical compounds, including antibiotic, anti-inflammatory, and analgesic drugs, and the stimulation of enzymes induced in a bioreactor. Moreover, intermediates and the proposed pathways of pharmaceutical compound biodegradation in BETs are to be explained in this review. According to studies performed exclusively, the benefit of BETs is using bio-electroactive microbes to mineralize recalcitrant pharmaceutical contaminants by promoting enzyme activity and energy. Since BETs use the electron transfer chain between bio-anode/-cathode and pharmaceuticals, the enzyme activity is essential in the oxidation and reduction of phenolic rings of drugs and the ineffective detoxification of effluent from the treatment plant. This study is suggested a vital and influential role of BETs in mineralizing and enzyme induction in bioreactors. Eventually, a content of future developments or outlooks of BETs are propounded to improve the pharmaceutical industries' wastewater problems.
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Affiliation(s)
- Zohreh Moghiseh
- Department of Environmental Health Engineering, Shoushtar Faculty of Medical Sciences, Shoushtar, Iran
| | - Yong Xiao
- CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, Fujian 361021 People’s Republic of China
| | - Mojtaba Kalantar
- Department of Occupational Health, Shoushtar Faculty of Medical Sciences, Shoushtar, Iran
| | - Barat Barati
- Department of Radiologic Technology, Shoushtar Faculty of Medical Sciences, Shoushtar, Iran
| | - Mina Ghahrchi
- Department of Environmental Health Engineering, Torbat Jam Faculty of Medical Sciences, Torbat Jam, Iran
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Davarnejad R, Sarvmeili K, Safari Z, Kennedy JF. Estrogen adsorption from an aqueous solution on the chitosan nanoparticles. Int J Biol Macromol 2023; 237:124224. [PMID: 36990402 DOI: 10.1016/j.ijbiomac.2023.124224] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 03/14/2023] [Accepted: 03/24/2023] [Indexed: 03/29/2023]
Abstract
In this research, chitosan nanoparticles as an efficient and reusable adsorbent with adsorption capacity of 5.79 mg/g, surface area of 62 m2/g and pHpzc of 8.07 were applied to remove the ethinylestradiol (as a sample of estrogen) from an aqueous wastewater. The chitosan nanoparticles were characterized by SEM, XRD and FT-IR analyses. Four independent variables involving contact time, adsorbent dosage, pH, and initial concentration of estrogen were applied to design the experiments by Design Expert software (CCD under RSM). In fact, number of experiments was minimized and the operating conditions were optimized for the maximum estrogen removal. The results indicated that three independent variables (contact time, adsorbent dosage, and pH) increment increased the estrogen removal while the estrogen initial concentration enhancement decreased the removal due to the concentration polarization phenomenon. The optimum conditions for the estrogen removal (92.50 %) on the chitosan nanoparticles were found at contact time of 220 min, adsorbent dosage of 1.45 g/l, pH of 7.3 and estrogen initial concentration of 5.7 mg/l. Moreover, the Langmuir isotherm and pseudo-second order models could properly legitimize estrogen adsorption process on the chitosan nanoparticles.
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Jadhav DA, Chendake AD, Vinayak V, Atabani A, Ali Abdelkareem M, Chae KJ. Scale-up of the bioelectrochemical system: Strategic perspectives and normalization of performance indices. BIORESOURCE TECHNOLOGY 2022; 363:127935. [PMID: 36100187 DOI: 10.1016/j.biortech.2022.127935] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 09/03/2022] [Accepted: 09/06/2022] [Indexed: 06/15/2023]
Abstract
Electrochemists and ecological engineers find environmental bioelectrochemistry appealing; however, there is a big gap between expectations and actual progress in bioelectrochemical system (BES). Implementing such technology opens new opportunities for novel electrochemical reactions for resource recovery and effective wastewater treatment. Loopholes of BES exist in its scaling-up applications, and numerous attempts toward practical applications (200, 1000, and 1500 L) are key successive indicators toward its commercialization. This review emphasized the critical rethinking of standardization of performance indices i.e. current generation (A/m2), net energy recovery (kWh/kg·COD), product/resource yield (mM), and economic feasibility ($/kWh) to make fair comparison with the existing treatment system. Therefore, directional perspectives, including modularity, energy-cost balance, energy and resource recovery, have been proposed for the sustainable market of BES. The current state of the art and up-gradation in resource recovery and contaminant removal warrants a systematic rethinking of functional worth and niches of BES for practical applications.
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Affiliation(s)
- Dipak A Jadhav
- Department of Environmental Engineering, College of Ocean Science and Engineering, Korea Maritime and Ocean University, 727 Taejong-ro, Yeongdo-gu, Busan 49112, Republic of Korea; Interdisciplinary Major of Ocean Renewable Energy Engineering, Korea Maritime and Ocean University, 727 Taejong-ro, Yeongdo-gu, Busan 49112, Republic of Korea
| | - Ashvini D Chendake
- Department of Agricultural Engineering, Maharashtra Institute of Technology, Aurangabad, Maharashtra 431010, India
| | - Vandana Vinayak
- Diatom Nanoengineering and Metabolism Laboratory (DNM), School of Applied Science, Dr. Harisingh Gour Central University, Sagar, Madhya Pradesh 470003, India
| | - Abdulaziz Atabani
- Alternative Fuels Research Laboratory (AFRL), Energy Division, Department of Mechanical Engineering, Erciyes University, Turkey
| | - Mohammad Ali Abdelkareem
- Department of Sustainable and Renewable Energy Engineering, University of Sharjah, P.O. Box 27272, Sharjah, United Arab Emirates; Center for Advanced Materials Research, University of Sharjah, 27272 Sharjah, United Arab Emirates; Chemical Engineering Department, Faculty of Engineering, Minia University, AlMinya, Egypt
| | - Kyu-Jung Chae
- Department of Environmental Engineering, College of Ocean Science and Engineering, Korea Maritime and Ocean University, 727 Taejong-ro, Yeongdo-gu, Busan 49112, Republic of Korea; Interdisciplinary Major of Ocean Renewable Energy Engineering, Korea Maritime and Ocean University, 727 Taejong-ro, Yeongdo-gu, Busan 49112, Republic of Korea.
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Ahmad A, Priyadarshini M, Yadav S, Ghangrekar MM, Surampalli RY. The potential of biochar-based catalysts in advanced treatment technologies for efficacious removal of persistent organic pollutants from wastewater: A review. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2022.09.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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13
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Chin MY, Phuang ZX, Woon KS, Hanafiah MM, Zhang Z, Liu X. Life cycle assessment of bioelectrochemical and integrated microbial fuel cell systems for sustainable wastewater treatment and resource recovery. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 320:115778. [PMID: 35952559 DOI: 10.1016/j.jenvman.2022.115778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 07/08/2022] [Accepted: 07/15/2022] [Indexed: 06/15/2023]
Abstract
Bioelectrochemical system (BES) is an emerging technology that can treat wastewater via microbial activity while producing energy simultaneously. The system can couple with conventional systems to improve system performance. This study aims to compare the environmental performance of BES and the integrated microbial fuel cell (MFC) systems via a life cycle assessment methodology and identify the major environmental hotspots of the system. Fifteen treatment options are assessed with the ReCiPe 2016 characterization method using SimaPro 9.2 software. The results show double chamber air-cathode microbial electrolysis cell (MEC1) and membrane distillation integrated MFC (MD + MFC) treatment options present as the most environmental favourable among the BES and integrated MFC systems, respectively, due to the offset of the environmental loads from the avoided impacts contributed by their value-added by-product, which is hydrogen fuel for MEC1 and tap water for MD + MFC. Electricity consumption dominates the environmental loads of all the BES options for up to 90% of the global warming impact category. The environmental benefits from the electricity generation of BES are minor (i.e., MFC: 0.01-2% while microbial desalination cell: 0.01-7% of the total environmental impact in a system) to offset the environmental loads incurred by the system. Platinum-based cathode incurs 2.5-24 times higher environmental burdens than non-platinum configurations in MFC under the human carcinogenic toxicity impact category. In line with Sustainable Development Goals 6 and 13, this study provides scientific references to wastewater treatment stakeholders in selecting suitable BES and integrated MFC systems to improve water sanitation and address climate change simultaneously.
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Affiliation(s)
- Min Yee Chin
- School of Energy and Chemical Engineering, Xiamen University Malaysia, Jalan Sunsuria, Bandar Sunsuria, 43900, Sepang, Selangor, Malaysia
| | - Zhen Xin Phuang
- School of Energy and Chemical Engineering, Xiamen University Malaysia, Jalan Sunsuria, Bandar Sunsuria, 43900, Sepang, Selangor, Malaysia
| | - Kok Sin Woon
- School of Energy and Chemical Engineering, Xiamen University Malaysia, Jalan Sunsuria, Bandar Sunsuria, 43900, Sepang, Selangor, Malaysia.
| | - Marlia M Hanafiah
- Department of Earth Sciences and Environment, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia; Centre for Tropical Climate Change System, Institute of Climate Change, Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia
| | - Zhen Zhang
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou, 510642, China
| | - Xiaoming Liu
- School of Materials and Environmental Engineering, Shenzhen Polytechnic, Guangdong, 518055, China
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14
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Ivshina I, Bazhutin G, Tyumina E. Rhodococcus strains as a good biotool for neutralizing pharmaceutical pollutants and obtaining therapeutically valuable products: Through the past into the future. Front Microbiol 2022; 13:967127. [PMID: 36246215 PMCID: PMC9557007 DOI: 10.3389/fmicb.2022.967127] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Accepted: 09/12/2022] [Indexed: 11/18/2022] Open
Abstract
Active pharmaceutical ingredients present a substantial risk when they reach the environment and drinking water sources. As a new type of dangerous pollutants with high chemical resistance and pronounced biological effects, they accumulate everywhere, often in significant concentrations (μg/L) in ecological environments, food chains, organs of farm animals and humans, and cause an intense response from the aquatic and soil microbiota. Rhodococcus spp. (Actinomycetia class), which occupy a dominant position in polluted ecosystems, stand out among other microorganisms with the greatest variety of degradable pollutants and participate in natural attenuation, are considered as active agents with high transforming and degrading impacts on pharmaceutical compounds. Many representatives of rhodococci are promising as unique sources of specific transforming enzymes, quorum quenching tools, natural products and novel antimicrobials, biosurfactants and nanostructures. The review presents the latest knowledge and current trends regarding the use of Rhodococcus spp. in the processes of pharmaceutical pollutants’ biodegradation, as well as in the fields of biocatalysis and biotechnology for the production of targeted pharmaceutical products. The current literature sources presented in the review can be helpful in future research programs aimed at promoting Rhodococcus spp. as potential biodegraders and biotransformers to control pharmaceutical pollution in the environment.
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15
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Tao Z, Jing Z, Tao M, Chen R. Recycled utilization of ryegrass litter in constructed wetland coupled microbial fuel cell for carbon-limited wastewater treatment. CHEMOSPHERE 2022; 302:134882. [PMID: 35551945 DOI: 10.1016/j.chemosphere.2022.134882] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 04/22/2022] [Accepted: 05/05/2022] [Indexed: 06/15/2023]
Abstract
To solve wetland plant litter disposal and improve the nitrogen removal of carbon-limited wastewater, the integration of microbial fuel cell (MFC) and recycled utilization of ryegrass litter planted in constructed wetland (CW) may be effective. CW and MFC-CW with periodical ryegrass litter addition (10 days one cycle) were constructed to study the effects of ryegrass litter on nitrogen removal, electricity production and microorganism community. The results showed that total nitrogen removal of CW and MFC-CW after ryegrass litter addition reached 80.54 ± 10.99% and 81.94 ± 7.30%, increased by 22.19% and 17.50%, respectively. Three-dimensional excitation emission matrix fluorescence spectroscopy results revealed that the soluble organic matters produced by the hydrolyzed ryegrass litter were mainly tryptophan, tyrosine and fulvic acid, which promoted the growth of microorganisms and denitrification. The dosage of 200 g m-2 did not cause the rise of refractory organic matter in the effluent. The ryegrass litter addition promoted the average voltage and power density slightly in MFC-CW, but the internal resistance also increased temporarily. Compared to the sole CW, current stimulation caused by MFC not only helped to increase the denitrification, but also accelerated the biomass hydrolysis. MFC could contribute to the enrichment and growth of functional microorganisms related to denitrification and organic degradation, such as Vogesella, Devosia, Thermomonas and Brevibacterium. The bacterial genera involved in the ryegrass litter degradation were mainly Thermomonas, Propionicimonas, TM7a, Clostridium_sensu_stricto_1 and so on. This study provided a promising way for practical applications of MFC-CW in the treatment of carbon-limited wastewater, especially in small ecological facilities.
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Affiliation(s)
- Zhengkai Tao
- College of Civil Engineering, Nanjing Forestry University, Nanjing, 210037, China
| | - Zhaoqian Jing
- College of Civil Engineering, Nanjing Forestry University, Nanjing, 210037, China.
| | - Mengni Tao
- College of Civil Engineering, Nanjing Forestry University, Nanjing, 210037, China
| | - Renjie Chen
- College of Civil Engineering, Nanjing Forestry University, Nanjing, 210037, China
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16
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Syed Z, Sogani M, Sharma G, Sonu K, Rajvanshi J, Gupta NS. Framework to improve biohydrogen generation with estrogen co-metabolism under complete suppression of nitrogen source. BIORESOURCE TECHNOLOGY 2022; 360:127595. [PMID: 35803446 DOI: 10.1016/j.biortech.2022.127595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 07/01/2022] [Accepted: 07/03/2022] [Indexed: 06/15/2023]
Abstract
The current work provides insights for improving the hydrogen output while degrading emerging contaminants using Rhodopseudomonas palustris. The changes in the growth rate of a microorganism due to different substrate inputs affects the hydrogen production due to metabolic route changes. The different ratios of glutamate and glycerol as nitrogen and carbon sources along with the presence of ethinylestradiol (EE2) in the photofermenter affected the flux of electrons being directed towards biosynthesis and biohydrogen generation. The combination of glutamate and glycerol in different ratios (Glu:Gly; 0, 0.20 and 0.54) along with estrogen showed no significant difference in the bacteriochlorophyll concentrations. The highest biomass concentration (0.013 h-1) was in ratio of 0.54 while maximum specific hydrogen production (1.9 ± 0.05 ml g-1 biomass h-1) was observed under complete suppression of nitrogen (0; without Glu; non-growing condition) with resultant improved estrogen degradation of about 78% in 168 h by R. palustris strain MDOC01.
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Affiliation(s)
- Zainab Syed
- Department of Biosciences, Manipal University Jaipur, Jaipur 303007, Rajasthan, India
| | - Monika Sogani
- Department of Biosciences, Manipal University Jaipur, Jaipur 303007, Rajasthan, India.
| | - Gopesh Sharma
- Department of Biosciences, Manipal University Jaipur, Jaipur 303007, Rajasthan, India
| | - Kumar Sonu
- Department of Mechanical Engineering, Kashi Institute of Technology, Varanasi 221307, Uttar Pradesh, India
| | - Jayana Rajvanshi
- Department of Biosciences, Manipal University Jaipur, Jaipur 303007, Rajasthan, India
| | - Nishan Sen Gupta
- Department of Biosciences, Manipal University Jaipur, Jaipur 303007, Rajasthan, India
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17
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Peng XX, Gai S, Cheng K, Yang F. Roles of humic substances redox activity on environmental remediation. JOURNAL OF HAZARDOUS MATERIALS 2022; 435:129070. [PMID: 35650747 DOI: 10.1016/j.jhazmat.2022.129070] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 05/01/2022] [Accepted: 05/02/2022] [Indexed: 06/15/2023]
Abstract
Humic substances (HS) as representative natural organic matters and the most common organic compounds existing in the environment, has been applied to the treatment and remediation of environmental pollution. This review systematically introduces and summarizes the redox activity of HS for the remediation of environmental pollutants. For inorganic pollutants (such as silver, chromium, mercury, and arsenic), the redox reaction of HS can reduce their toxicity and mobilization, thereby reducing the harm of these pollutants to the environment. The concentration and chemical composition of HS, environmental pH, ionic strength, and competing components affect the degree and rate of redox reactions between inorganic pollutants and HS significantly. With regards to organic pollutants, HS has photocatalytic activity and produces a large number of reactive oxygen species (ROS) under the light which reacts with organic pollutants to accelerate the degradation of organic pollutants. Under the affection of HS, the redox of Fe(III) and Fe(II) can enhance the efficiency of Fenton-like reaction to degrade organic pollutants. Finally, the research direction of HS redox remediation of environmental pollution is prospected.
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Affiliation(s)
- Xiong-Xin Peng
- School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin 150030, China; Joint Laboratory of Northeast Agricultural University and Max Planck Institute of Colloids and Interfaces (NEAU-MPICI), Harbin 150030, China
| | - Shuang Gai
- School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin 150030, China; Joint Laboratory of Northeast Agricultural University and Max Planck Institute of Colloids and Interfaces (NEAU-MPICI), Harbin 150030, China
| | - Kui Cheng
- Joint Laboratory of Northeast Agricultural University and Max Planck Institute of Colloids and Interfaces (NEAU-MPICI), Harbin 150030, China; College of Engineering, Northeast Agricultural University, Harbin 150030, China
| | - Fan Yang
- School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin 150030, China; Joint Laboratory of Northeast Agricultural University and Max Planck Institute of Colloids and Interfaces (NEAU-MPICI), Harbin 150030, China.
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18
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Syed Z, Sogani M, Kumar A, Rajvanshi J, Sharma G, Sonu K. Biodegradation of synthetic estrogen using bioelectrochemical system and degradation pathway analysis through Quadrupole-time-of-flight-mass spectrometry. BIORESOURCE TECHNOLOGY 2022; 349:126857. [PMID: 35183727 DOI: 10.1016/j.biortech.2022.126857] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 02/11/2022] [Accepted: 02/12/2022] [Indexed: 06/14/2023]
Abstract
Synthetic estrogenic compounds such as 17α-ethinylestradiol (EE2) are significant environmental contaminants. This research studied the biodegradation of EE2 utilizing the EE2 adapted cells isolated from a dairy farm waste site in suspension flask vis-a-vis Bioelectrochemical System (BES) and compared the power output in the BES with and without EE2 as a co-substrate. 78% removal of EE2 was observed in the BES as against 60% removal in suspension flasks. The maximum power density in the BES increased about 53% when EE2 is used as a co-substrate. The EE2 biodegradation studied using HPLC and Q-TOF methods, also proposes a hypothetical pathway for EE2 degradation by the newly isolated strain Rhodopseudomonas palustris MDOC01 and reports the significant metabolites like nicotinic acid and oxoproline being detected during bioelectrochemical treatment process of EE2. Study also suggests that Plasma peroxide treatment of anode material enhanced the overall performance in terms of biodegradation efficiency and power output.
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Affiliation(s)
- Zainab Syed
- Department of Biosciences, Manipal University Jaipur, Jaipur 303007, Rajasthan, India
| | - Monika Sogani
- Department of Biosciences, Manipal University Jaipur, Jaipur 303007, Rajasthan, India.
| | - Anu Kumar
- The Commonwealth Scientific and Industrial Research Organisation (CSIRO), L&W, Waite Campus, Urrbrae, SA 5064, Australia
| | - Jayana Rajvanshi
- Department of Biosciences, Manipal University Jaipur, Jaipur 303007, Rajasthan, India
| | - Gopesh Sharma
- Department of Biosciences, Manipal University Jaipur, Jaipur 303007, Rajasthan, India
| | - Kumar Sonu
- Department of Mechanical Engineering, Kashi Institute of Technology, Varanasi 221307, Uttar Pradesh, India
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19
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Amanze C, Zheng X, Man M, Yu Z, Ai C, Wu X, Xiao S, Xia M, Yu R, Wu X, Shen L, Liu Y, Li J, Dolgor E, Zeng W. Recovery of heavy metals from industrial wastewater using bioelectrochemical system inoculated with novel Castellaniella species. ENVIRONMENTAL RESEARCH 2022; 205:112467. [PMID: 34863983 DOI: 10.1016/j.envres.2021.112467] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 11/27/2021] [Accepted: 11/28/2021] [Indexed: 06/13/2023]
Abstract
Water pollution is a global issue that has drastically increased in recent years due to rapid industrial development. Different technologies have been designed for the removal of pollutants from wastewater. However, most of these techniques are expensive, generate new waste, and focus solely on metal removal instead of metal recovery. In this study, novel facultative exoelectrogenic strains designated Castellaniella sp. A5, Castellaniella sp. B3, and Castellaniella sp. A3 were isolated from a microbial fuel cell (MFC). These isolates were utilized as pure and mixed culture inoculums in a bioelectrochemical system (BES) to produce bioelectricity and treat simulated industrial wastewater. A single-chamber MFC inoculated with the mixed culture attained the highest electricity generation (i.e., 320 mW/m2 power density and 3.19 A/m2 current density), chemical oxygen demand removal efficiency (91.15 ± 0.05%), and coulombic efficiency (54.81 ± 4.18%). In addition, the BES containing biofilms of the mixed culture achieved the highest Cu, Cr, and Cd removal efficiencies of 99.89 ± 0.07%, 99.59 ± 0.53%, and 99.91 ± 0.04%, respectively. The Cr6+ and Cu2+ in the simulated industrial wastewater were recovered via microbial electrochemical reduction as Cr3+ and Cu0, respectively. However, Cd2+ precipitated as Cd (OH)2 or CdCO3 on the surface of the cathodes. These results suggest that a mixed culture inoculum of Castellaniella sp. A5, Castellaniella sp. B3, and Castellaniella sp. A3 has great potential as a biocatalyst in BES for heavy metals recovery from industrial wastewater.
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Affiliation(s)
- Charles Amanze
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China
| | - Xiaoya Zheng
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China
| | - Meilian Man
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China
| | - Zhaojing Yu
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China
| | - Chenbing Ai
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China
| | - Xiaoyan Wu
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China
| | - Shanshan Xiao
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China
| | - Mingchen Xia
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China
| | - Runlan Yu
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China; Key Laboratory of Biometallurgy, Ministry of Education, Changsha, 410083, China
| | - Xueling Wu
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China; Key Laboratory of Biometallurgy, Ministry of Education, Changsha, 410083, China
| | - Li Shen
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China; Key Laboratory of Biometallurgy, Ministry of Education, Changsha, 410083, China
| | - Yuandong Liu
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China; Key Laboratory of Biometallurgy, Ministry of Education, Changsha, 410083, China
| | - Jiaokun Li
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China; Key Laboratory of Biometallurgy, Ministry of Education, Changsha, 410083, China
| | - Erdenechimeg Dolgor
- Department of Chemical and Biological Engineering, School of Engineering and Applied Sciences, National University of Mongolia, 14200, Mongolia
| | - Weimin Zeng
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China; Key Laboratory of Biometallurgy, Ministry of Education, Changsha, 410083, China.
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20
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Li S, Wu Y, Li X, Liu Q, Li H, Tu W, Luo X, Luo Y. Enhanced remediation of Cd-contaminated soil using electrokinetic assisted by permeable reactive barrier with lanthanum-based biochar composite filling materials. ENVIRONMENTAL TECHNOLOGY 2022:1-13. [PMID: 35244499 DOI: 10.1080/09593330.2022.2049891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 02/24/2022] [Indexed: 06/14/2023]
Abstract
Electrokinetic remediation (EK) combined with a permeable reactive barrier (PRB) is a relatively new technique for efficiently remediating Cd-contaminated soil in situ. Eupatorium adenophorum, which is a malignant invasive plant, was used to synthesise biochar and a novel lanthanum-based biochar composite (LaC). The biochar and LaC were used as cheap and environmentally benign PRB filling materials to remediate simulated and real Cd-contaminated soils. The pH and residual Cd concentration in the simulated contaminated soil during remediation gradually increased from the anode to the cathode used to apply an electric field to the EK-PRB system. However, the soil conductivity changed in the opposite way, and the current density first increased and then decreased. For simulated contaminated soils with initial Cd concentrations of 34.9 and 100.6 mg kg-1, the mean Cd removal rates achieved using LaC were 90.6% and 89.3%, respectively, which were significantly higher than those of biochar (P < 0.05). Similar results were achieved using natural soils from mining area and polluted farmland, and the Cd removal rates were 66.9% and 72.0%, respectively. Fourier-transform infrared and X-ray photoelectron spectroscopy indicated that there were many functional groups on the LaC surfaces. The removal mechanism of EK-PRB for Cd in contaminated soil includes electromigration, electroosmotic flow, surface adsorption, and ion exchange. The results indicated that the LaC could be used in the EK-PRB technique as a cheap and 'green' material to efficiently decontaminate soil polluted with heavy metals.
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Affiliation(s)
- Sen Li
- College of Environment and Civil Engineering, Chengdu University of Technology, Chengdu, People's Republic of China
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu, People's Republic of China
- Sichuan Provincial Academy of Natural Resource Sciences, Chengdu, People's Republic of China
| | - Yong Wu
- College of Environment and Civil Engineering, Chengdu University of Technology, Chengdu, People's Republic of China
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu, People's Republic of China
| | - Xueling Li
- College of Environment and Civil Engineering, Chengdu University of Technology, Chengdu, People's Republic of China
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu, People's Republic of China
| | - Qin Liu
- College of Environment and Civil Engineering, Chengdu University of Technology, Chengdu, People's Republic of China
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu, People's Republic of China
| | - Hongtao Li
- College of Environment and Civil Engineering, Chengdu University of Technology, Chengdu, People's Republic of China
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu, People's Republic of China
| | - Weiguo Tu
- Sichuan Provincial Academy of Natural Resource Sciences, Chengdu, People's Republic of China
| | - Xuemei Luo
- Sichuan Provincial Academy of Natural Resource Sciences, Chengdu, People's Republic of China
| | - Yong Luo
- Sichuan Provincial Academy of Natural Resource Sciences, Chengdu, People's Republic of China
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21
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Sun S, Abdellah YAY, Miao L, Wu B, Ma T, Wang Y, Zang H, Zhao X, Li C. Impact of microbial inoculants combined with humic acid on the fate of estrogens during pig manure composting under low-temperature conditions. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127713. [PMID: 34815123 DOI: 10.1016/j.jhazmat.2021.127713] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 10/25/2021] [Accepted: 11/03/2021] [Indexed: 06/13/2023]
Abstract
To investigate the efficiency of psychrotrophic cellulose-degrading fungal strains (PCDFSs) and estrogen-degrading bacteria (EDBs) combined with humic acid (HA) on estrone (E1) and 17-β-estradiol (E2) degradation, five compost groups (T, HA, EDB, PCDFS, and CK) were prepared and composted for 32 days at 11-14°C. The results indicated that inoculation increased the temperature to 62.2°C and promoted E1 degradation to the lowest level of 100.1 ng/kg, while E2 was undetected from day 16. Metagenomic analysis revealed that inoculation altered the microbial community structure by increasing the abundance of cellulose-degrading fungi, especially Meyerozyma (16.7%) (among PCDFSs), and of estrogen-degrading bacteria, particularly Microbacterium (13.4%) (involved in EDBs). Moreover, inoculation increased the levels (>0.500%) of Gene Ontology (GO) associated with estrogen degradation, like 3-β-hydroxy-delta 5-steroid dehydrogenase and monooxygenase. Redundancy analysis demonstrated that temperature and Microbacterium were positively correlated with estrogen degradation. Structural equation model indicated that temperature and estrogen-degrading bacterial genera exhibited positive, significant (p < 0.001) and direct impacts on estrogen degradation. This is the first study to suggest that applying microbial inoculants and HA could accelerate estrogen degradation during composting in cold regions. The research outcomes offer a practical reference for managing compost safety, thereby decreasing its potential environmental and human health impacts.
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Affiliation(s)
- Shanshan Sun
- College of Resources and Environment, Northeast Agricultural University, Harbin 150030, Heilongjiang, PR China
| | | | - Lei Miao
- College of Resources and Environment, Northeast Agricultural University, Harbin 150030, Heilongjiang, PR China
| | - Bowen Wu
- College of Resources and Environment, Northeast Agricultural University, Harbin 150030, Heilongjiang, PR China
| | - Tian Ma
- College of Resources and Environment, Northeast Agricultural University, Harbin 150030, Heilongjiang, PR China
| | - Yue Wang
- College of Resources and Environment, Northeast Agricultural University, Harbin 150030, Heilongjiang, PR China
| | - Hailian Zang
- College of Resources and Environment, Northeast Agricultural University, Harbin 150030, Heilongjiang, PR China
| | - Xinyue Zhao
- College of Resources and Environment, Northeast Agricultural University, Harbin 150030, Heilongjiang, PR China
| | - Chunyan Li
- College of Resources and Environment, Northeast Agricultural University, Harbin 150030, Heilongjiang, PR China.
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22
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Bilal M, Barceló D, Iqbal HMN. Occurrence, environmental fate, ecological issues, and redefining of endocrine disruptive estrogens in water resources. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 800:149635. [PMID: 34426321 DOI: 10.1016/j.scitotenv.2021.149635] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 07/27/2021] [Accepted: 08/09/2021] [Indexed: 02/05/2023]
Abstract
The growing persistence of estrogenic pollutants in water resources is a worrying concern because of their endocrine disrupting activities and potentially hazardous consequences on the environmental matrices, ecology, and human health, even at low concentration. The long-term persistence of steroidal estrogens leads to their bioaccumulation in aquatic organisms that can further reach to humans via food chain route. Considering the toxicity of steroidal estrogens, it is important to mitigate these environmentally related hazardous contaminants. So far, several treatment methods, like adsorption, oxidation, irradiation, and electrochemical techniques have been proposed to eliminate estrogens from aqueous ecosystems. Nevertheless, high operational costs, insufficient removal, generation of toxic sludge, and the necessity of skilled maintenance and operating workers are the major hindrances associated with large scale applications. Bioremediation of steroidal estrogens using enzyme-based biocatalytic system has recently emerged as a promising alternative to remove and bio-transform estrogens from aqueous systems. However, the current literature lacks a critique focusing specifically and comprehensively on steroidal estrogens. The presented review is a critical assessment of the existing literature on steroid-based endocrine disruptive estrogens. A detailed description about the occurrence and eco-fate of steroidal estrogens is given with representative examples. The later half of the review stresses on the redefining (removal) of endocrine disruptive estrogens in water resources with particular reference to enzyme-based approaches.
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Affiliation(s)
- Muhammad Bilal
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an 223003, China.
| | - Damià Barceló
- Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research (IDAEA-CSIC), Jordi Girona, 18-26, 08034 Barcelona, Spain; Catalan Institute for Water Research (ICRA-CERCA), Parc Científic i Tecnològic de la Universitat de Girona, c/Emili Grahit, 101, Edifici H(2)O, 17003 Girona, Spain; College of Environmental and Resources Sciences, Zhejiang A&F University, Hangzhou 311300, China.
| | - Hafiz M N Iqbal
- Tecnologico de Monterrey, School of Engineering and Sciences, Monterrey 64849, Mexico.
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23
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Valorisation of CO2 into Value-Added Products via Microbial Electrosynthesis (MES) and Electro-Fermentation Technology. FERMENTATION-BASEL 2021. [DOI: 10.3390/fermentation7040291] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Microbial electrocatalysis reckons on microbes as catalysts for reactions occurring at electrodes. Microbial fuel cells and microbial electrolysis cells are well-known in this context; both prefer the oxidation of organic and inorganic matter for producing electricity. Notably, the synthesis of high energy-density chemicals (fuels) or their precursors by microorganisms using bio-cathode to yield electrical energy is called Microbial Electrosynthesis (MES), giving an exceptionally appealing novel way for producing beneficial products from electricity and wastewater. This review accentuates the concept, importance and opportunities of MES, as an emerging discipline at the nexus of microbiology and electrochemistry. Production of organic compounds from MES is considered as an effective technique for the generation of various beneficial reduced end-products (like acetate and butyrate) as well as in reducing the load of CO2 from the atmosphere to mitigate the harmful effect of greenhouse gases in global warming. Although MES is still an emerging technology, this method is not thoroughly known. The authors have focused on MES, as it is the next transformative, viable alternative technology to decrease the repercussions of surplus carbon dioxide in the environment along with conserving energy.
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24
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Ahmad A, Priyadarshani M, Das S, Ghangrekar MM. Role of bioelectrochemical systems for the remediation of emerging contaminants from wastewater: A review. J Basic Microbiol 2021; 62:201-222. [PMID: 34532865 DOI: 10.1002/jobm.202100368] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 08/30/2021] [Accepted: 09/04/2021] [Indexed: 02/05/2023]
Abstract
Bioelectrochemical systems (BESs) are a unique group of wastewater remediating technology that possesses the added advantage of valuable recovery with concomitant wastewater treatment. Moreover, due to the application of robust microbial biocatalysts in BESs, effective removal of emerging contaminants (ECs) can be accomplished in these BESs. Thus, this review emphasizes the recent demonstrations pertaining to the removal of complex organic pollutants of emerging concern present in wastewater through BES. Owing to the recalcitrant nature of these pollutants, they are not effectively removed through conventional wastewater treatment systems and thereby are discharged into the environment without proper treatment. Application of BES in terms of ECs removal and degradation mechanism along with valuables that can be recovered are discussed. Moreover, the factors affecting the performance of BES, like biocatalyst, substrate, salinity, and applied potential are also summarized. In addition, the present review also elucidates the occurrence and toxic nature of ECs as well as future recommendations pertaining to the commercialization of this BES technology for the removal of ECs from wastewater. Therefore, the present review intends to aid the researchers in developing more efficient BESs for the removal of ECs from wastewater.
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Affiliation(s)
- Azhan Ahmad
- Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, India
| | - Monali Priyadarshani
- School of Environmental Science and Engineering, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, India
| | - Sovik Das
- Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, India
| | - Makarand Madhao Ghangrekar
- Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, India.,School of Environmental Science and Engineering, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, India
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