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Mollo L, Petrucciani A, Norici A. Selection of microalgae in artificial digestate: Strategies towards an effective phycoremediation. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 210:108588. [PMID: 38615438 DOI: 10.1016/j.plaphy.2024.108588] [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: 12/22/2023] [Revised: 03/01/2024] [Accepted: 03/29/2024] [Indexed: 04/16/2024]
Abstract
Digestate is a complex by-product of anaerobic digestion and its composition depends on the digestor inputs. It can be exploited as a sustainable source of nutrients for microalgae cultivation but its unbalanced composition and toxic elements make the use challenging. Screening algae in a simplified synthetic digestate which mimics the main nutrient constraints of a real digestate is proposed as a reproducible and effective method to select suitable species for real digestate valorisation and remediation. Growth performance, nutrient removal and biomass composition of eight microalgae exposed to high amounts of NH4+, PO4- and organic-C were assessed. Using a score matrix, A. protothecoides, T. obliquus, C. reinhardtii, and E. gracilis were identified as the most promising species. Thus, three strategies were applied to improve outcomes: i) establishment of an algal consortium to improve biomass production, ii) K+ addition to the medium to promote K+ uptake over NH4+ and to reduce potential NH4+ toxicity, iii) P starvation as pretreatment for enhanced P removal by luxury uptake. The consortium was able to implement a short-term response displaying higher biomass production than single species (3.77 and 1.03-1.89 mg mL-1 respectively) in synthetic digestate while maintaining similar nutrient remediation, furthermore, its growth rate was 1.6 times higher than in the control condition. However, the strategies aiming to reduce NH4+ toxicity and higher P removal were not successful except for single cases. The proposed algal screening and the resulting designed consortium were respectively a reliable method and a powerful tool towards sustainable real digestate remediation.
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Affiliation(s)
- Lorenzo Mollo
- Laboratory of Algal and Plant Physiology, Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131, Ancona, Italy
| | - Alessandra Petrucciani
- Laboratory of Algal and Plant Physiology, Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131, Ancona, Italy
| | - Alessandra Norici
- Laboratory of Algal and Plant Physiology, Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131, Ancona, Italy; CIRCC, Consorzio Interuniversitario Reattività Chimica e Catalisi, Italy.
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2
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Kalita N, Baruah PP. Copper removal efficacy and stress tolerance potential of Leptolyngbya sp. GUEco1015. Heliyon 2024; 10:e29131. [PMID: 38644834 PMCID: PMC11033120 DOI: 10.1016/j.heliyon.2024.e29131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Revised: 03/18/2024] [Accepted: 04/01/2024] [Indexed: 04/23/2024] Open
Abstract
Cyanobacteria, a group of microalgae are the potent organism having the ability to survive in the copper rich environment and recently gained too much attention for their profuse proliferation in such water bodies. Amongst the members of cyanobacteria, the current study was conducted on Leptolyngbya sp. GUEco1015, collected from hydrocarbon rich water bodies of Assam, India. Morphological images of treated samples showed a remarkable damage in the cell surface as well as the organelles over the control. Biochemical results revealed a significant increase of enzymatic and non-enzymatic antioxidants during oxidative damage of Cu2+. But, ascorbate in 1.2 ppm (p < 0.01), 1.5 ppm (p < 0.001) and catalase content 1.5 ppm (p < 0.05) showed a significant reduction after a certain level. The cells were optimized to evaluate the maximum Cu2+ removal potential by the cells related to growth. Initial metal concentration 0.1 ppm, pH 7.5, temperature 25 °C and shaking rate 100 rpm are the optimized abiotic parameters which showed maximum 83% of Cu2+ removal. FTIR spectroscopy and EDX data has identified a number of notable functional groups that were involved in Cu2+ binding mechanism and revealed a distinctive peak of Cu with 0.41 wt % which makes the species as one of the competent copper adsorbents.
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Affiliation(s)
- Nilamjyoti Kalita
- Plant Ecology Laboratory, Dept. of Botany, Gauhati University, Gopinath Bordoloi Nagar, Jalukbari, Guwahati, Assam 781014, India
| | - Partha Pratim Baruah
- Plant Ecology Laboratory, Dept. of Botany, Gauhati University, Gopinath Bordoloi Nagar, Jalukbari, Guwahati, Assam 781014, India
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3
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Aranda-Vega Y, Bhatt P, Huang JY, Brown P, Bhasin A, Hussain AS, Simsek H. Biodegradability and bioavailability of dissolved substances in aquaculture effluent: Performance of indigenous bacteria, cyanobacteria, and green microalgae. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 345:123468. [PMID: 38301819 DOI: 10.1016/j.envpol.2024.123468] [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: 11/20/2023] [Revised: 01/14/2024] [Accepted: 01/29/2024] [Indexed: 02/03/2024]
Abstract
Aquaculture is a controlled aquatic farming sector and one of the most important human food sources. Fish farming is one of the predominant, fast-growing sectors that supply seafood products worldwide. Along with its benefits, aquaculture practices can discharge large quantities of nutrients into the environment through non-treated or poorly treated wastewater. This study aims to understand the nutrient composition of fish wastewater and the use of indigenous bacteria, cyanobacteria, and microalgae as an alternative biological treatment method. Wastewater samples from a local fish farming facility were collected and treated using six different species of cyanobacteria and microalgae include Chroococcus minutus, Porphyridium cruentum, Chlorella vulgaris, Microcystis aeruginosa, Chlamydomonas reinhardtii, and Fischerella muscicola. All the samples were incubated for 21 days, and the following parameters were measured weekly: Chemical oxygen demand (COD), phosphate, total dissolved nitrogen, and dissolved inorganic nitrogen. In addition, dissolved organic nitrogen (DON), bioavailable DON (ABDON), and biodegradable DON (BDON) were calculated from the mass-balance equations. Colorimetric and digestive methods were used for the parameter measurements. The results showed that C. reinhardtii reduced the soluble COD concentration by 74.6 %, DON by 94.3 %, and phosphorous by more than 99 %. Moreover, M. aeruginosa, and C. minutus significantly reduced inorganic nitrogen species (>99 %). This alternative fish wastewater treatment method was explored to gain insight into fish wastewater nutrient composition and to create a sustainable alternative to conventional fish wastewater treatment methods.
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Affiliation(s)
- Yolanys Aranda-Vega
- Department of Agricultural & Biological Engineering, Purdue University, W. Lafayette, IN, USA
| | - Pankaj Bhatt
- Department of Agricultural & Biological Engineering, Purdue University, W. Lafayette, IN, USA
| | - Jen-Yi Huang
- Department of Food Science, Purdue University, W. Lafayette, IN, USA
| | - Paul Brown
- Department of Forestry and Natural Resources, Purdue University, W. Lafayette, IN, USA
| | - Aparajita Bhasin
- Department of Food Technology and Nutrition, Lovely Professional University, Phagwara, India
| | - Aya S Hussain
- Department of Forestry and Natural Resources, Purdue University, W. Lafayette, IN, USA; Zoology Department, Faculty of Science, Suez University, Suez, Egypt
| | - Halis Simsek
- Department of Agricultural & Biological Engineering, Purdue University, W. Lafayette, IN, USA.
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4
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Vijay Pradhap Singh M, Ravi Shankar K. Next-generation hybrid technologies for the treatment of pharmaceutical industry effluents. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 353:120197. [PMID: 38301475 DOI: 10.1016/j.jenvman.2024.120197] [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: 09/01/2023] [Revised: 01/03/2024] [Accepted: 01/20/2024] [Indexed: 02/03/2024]
Abstract
Water and industries are intangible units of the globe that are always set to meet the population's demand. The global population depends on one-third of freshwater increasing the demand. The increase in population along with urbanization has polluted the fresh water resources. The pharmaceutical industry is marked as an emerging contaminant of water pollution. The most common type of pharmaceutical drugs that are detected in the environment includes antibiotics, analgesics, NSAIDs, and pain-relieving drugs. These drugs alter the food chain of the organisms causing chaos mainly in the marine ecosystem. Pharmaceutical drugs are found only in shallow amounts (ng/mg) they have a huge impact on the living system. The consumption of water contaminated with pharmaceutical ingredients can disrupt reproduction, hormonal imbalance, cancer, and respiratory problems. Various methods are used to remove these chemicals from the environment. In this review, we mainly focused on the emerging hybrid technologies and their significance in the effective treatment of pharmaceutical wastewater. This review paper primarily elaborates on the merits and demerits of existing conventional technologies helpful in developing integrated technologies for the modern era of pharmaceutical effluent treatment. This review paper further in detail discusses the various strategies of eco-friendly bioremediation techniques namely biostimulation, bioaugmentation, bacterial degradation, mycoremediation, phytoremediation, and others for the ultimate removal of pharmaceutical contaminants in wastewater. The review makes clear that targeted and hybrid solutions are what the world will require in the future to get rid of these pharmacological prints.
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Affiliation(s)
- M Vijay Pradhap Singh
- Department of Biotechnology, Vivekanandha College of Engineering for Women (Autonomous), Namakkal, Elayampalayam, Tiruchengode, Tamil Nadu, 637 205, India.
| | - K Ravi Shankar
- Department of Biotechnology, University College of Engineering, Anna University-BIT Campus, Tiruchirappalli, Tamil Nadu, 620 024, India.
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Barone GD, Cernava T, Ullmann J, Liu J, Lio E, Germann AT, Nakielski A, Russo DA, Chavkin T, Knufmann K, Tripodi F, Coccetti P, Secundo F, Fu P, Pfleger B, Axmann IM, Lindblad P. Recent developments in the production and utilization of photosynthetic microorganisms for food applications. Heliyon 2023; 9:e14708. [PMID: 37151658 PMCID: PMC10161259 DOI: 10.1016/j.heliyon.2023.e14708] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 03/08/2023] [Accepted: 03/15/2023] [Indexed: 05/09/2023] Open
Abstract
The growing use of photosynthetic microorganisms for food and food-related applications is driving related biotechnology research forward. Increasing consumer acceptance, high sustainability, demand of eco-friendly sources for food, and considerable global economic concern are among the main factors to enhance the focus on the novel foods. In the cases of not toxic strains, photosynthetic microorganisms not only provide a source of sustainable nutrients but are also potentially healthy. Several published studies showed that microalgae are sources of accessible protein and fatty acids. More than 400 manuscripts were published per year in the last 4 years. Furthermore, industrial approaches utilizing these microorganisms are resulting in new jobs and services. This is in line with the global strategy for bioeconomy that aims to support sustainable development of bio-based sectors. Despite the recognized potential of the microalgal biomass value chain, significant knowledge gaps still exist especially regarding their optimized production and utilization. This review highlights the potential of microalgae and cyanobacteria for food and food-related applications as well as their market size. The chosen topics also include advanced production as mixed microbial communities, production of high-value biomolecules, photoproduction of terpenoid flavoring compounds, their utilization for sustainable agriculture, application as source of nutrients in space, and a comparison with heterotrophic microorganisms like yeast to better evaluate their advantages over existing nutrient sources. This comprehensive assessment should stimulate further interest in this highly relevant research topic.
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Affiliation(s)
- Giovanni D. Barone
- Institute of Molecular Biotechnology, Graz University of Technology, Petersgasse 14, 8010, Graz, Austria
- Corresponding author.
| | - Tomislav Cernava
- Institute of Environmental Biotechnology, Graz University of Technology, Petersgasse 12/I, 8010, Graz, Austria
| | - Jörg Ullmann
- Roquette Klötze GmbH & Co. KG, Lockstedter Chaussee 1, D-38486, Klötze, Germany
| | - Jing Liu
- State Key Laboratory of Marine Resource Utilization in South China Sea Hainan University, 58 Renmin Avenue, Meilan District, Haikou, Hainan Province, 570228, PR China
| | - Elia Lio
- Institute of Chemical Sciences and Technologies (SCITEC) “Giulio Natta” Italian National Research Council (CNR), via Mario Bianco 9, 20131, Milan, Italy
| | - Anna T. Germann
- Synthetic Microbiology, Department of Biology, Heinrich Heine University Düsseldorf, 40225, Düsseldorf, Germany
| | - Andreas Nakielski
- Synthetic Microbiology, Department of Biology, Heinrich Heine University Düsseldorf, 40225, Düsseldorf, Germany
| | - David A. Russo
- Friedrich Schiller University Jena, Institute for Inorganic and Analytical Chemistry, Bioorganic Analytics, Lessingstr. 8, D-07743, Jena, Germany
| | - Ted Chavkin
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, Madison, WI, USA
| | | | - Farida Tripodi
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, 20126, Milano, Italy
| | - Paola Coccetti
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, 20126, Milano, Italy
| | - Francesco Secundo
- Institute of Chemical Sciences and Technologies (SCITEC) “Giulio Natta” Italian National Research Council (CNR), via Mario Bianco 9, 20131, Milan, Italy
| | - Pengcheng Fu
- State Key Laboratory of Marine Resource Utilization in South China Sea Hainan University, 58 Renmin Avenue, Meilan District, Haikou, Hainan Province, 570228, PR China
| | - Brian Pfleger
- Knufmann GmbH, Bergstraße 23, D-38486, Klötze, Germany
| | - Ilka M. Axmann
- Synthetic Microbiology, Department of Biology, Heinrich Heine University Düsseldorf, 40225, Düsseldorf, Germany
- Cluster of Excellence on Plant Sciences (CEPLAS), Heinrich Heine University Düsseldorf, D-40001, Düsseldorf, Germany
- Corresponding author. Synthetic Microbiology, Department of Biology, Heinrich Heine University Düsseldorf, 40225, Düsseldorf, Germany.
| | - Peter Lindblad
- Microbial Chemistry, Department of Chemistry–Ångström, Uppsala University, Box 523, SE-75120, Uppsala, Sweden
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Bandara GLCL, Abeysiriwardana-Arachchige ISA, Xu X, Lin L, Jiang W, Zhang Y, Johnson DC, Nirmalakhandan N, Xu P. Impacts of seasonality and operating conditions on water quality of algal versus conventional wastewater treatment: Part 1. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 304:114291. [PMID: 34933263 DOI: 10.1016/j.jenvman.2021.114291] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Revised: 11/16/2021] [Accepted: 12/10/2021] [Indexed: 06/14/2023]
Abstract
Municipal wastewater is a reliable source from which water, renewable energy, and nutrients could be recovered for beneficial use. Our previous efforts have documented that an innovative algal-based wastewater treatment (WWT) system could recover energy and nutrients from wastewater while having a lower energy footprint than conventional WWT processes. As a biological treatment process, the algal WWT can be affected by algal species, operating conditions, and meteorological factors. This study aimed to identify suitable algal cultures to treat municipal wastewater during warm and cold weather. The algal system achieved the secondary effluent discharge standards for biochemical oxygen demand and nutrients within 2-3 days during warm weather (May to October, 25-55 °C) using an extremophilic algal strain Galdieria sulphuraria; and within 1-2 days in winter (November to April, 4-17 °C) using polyculture strains of algae with bacteria. The impact of seasonal variation and operating conditions on the water quality of pilot-scale algal bioreactors was compared with a full-scale conventional WWT system. The treatment performance of the algal system (NH4-N: 1.3 ± 1.25 mg/L in winter and not detected in summer and conventional system; PO4-P: 0.89 ± 0.6 mg/L in winter, 0.02 ± 0.03 mg/L in summer and, 5.93 ± 1.32 mg/L in conventional system) was comparable or better than that of the conventional WWT in nutrients removal and other contaminants were below the discharge standards. This study indicates that the algal system can be engineered for reliable wastewater treatment independent of seasonal variations.
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Affiliation(s)
| | | | - Xuesong Xu
- Civil Engineering Department, New Mexico State University, Las Cruces, NM, 88003, USA
| | - Lu Lin
- Civil Engineering Department, New Mexico State University, Las Cruces, NM, 88003, USA
| | - Wenbin Jiang
- Civil Engineering Department, New Mexico State University, Las Cruces, NM, 88003, USA
| | - Yanyan Zhang
- Civil Engineering Department, New Mexico State University, Las Cruces, NM, 88003, USA
| | - David C Johnson
- Civil Engineering Department, New Mexico State University, Las Cruces, NM, 88003, USA
| | | | - Pei Xu
- Civil Engineering Department, New Mexico State University, Las Cruces, NM, 88003, USA.
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7
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A Review on Promising Membrane Technology Approaches for Heavy Metal Removal from Water and Wastewater to Solve Water Crisis. WATER 2021. [DOI: 10.3390/w13223241] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Due to the impacts of water scarcity, the world is looking at all possible solutions for decreasing the over-exploitation of finite freshwater resources. Wastewater is one of the most reliable and accessible water supplies. As the population expands, so do industrial, agricultural, and household operations in order to meet man’s enormous demands. These operations generate huge amounts of wastewater, which may be recovered and used for a variety of reasons. Conventional wastewater treatment techniques have had some success in treating effluents for discharge throughout the years. However, advances in wastewater treatment techniques are required to make treated wastewater suitable for industrial, agricultural, and household use. Diverse techniques for removing heavy metal ions from various water and wastewater sources have been described. These treatments can be categorized as adsorption, membrane, chemical, or electric. Membrane technology has been developed as a popular alternative for recovering and reusing water from various water and wastewater sources. This study integrates useful membrane technology techniques for water and wastewater treatment containing heavy metals, with the objective of establishing a low-cost, high-efficiency method as well as ideal production conditions: low-cost, high-efficiency selective membranes, and maximum flexibility and selectivity. Future studies should concentrate on eco-friendly, cost-effective, and long-term materials and procedures.
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8
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Ahmad IZ. The usage of Cyanobacteria in wastewater treatment: prospects and limitations. Lett Appl Microbiol 2021; 75:718-730. [PMID: 34687552 DOI: 10.1111/lam.13587] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 09/27/2021] [Accepted: 10/14/2021] [Indexed: 11/26/2022]
Abstract
The applicability of Cyanobacteria executes various roles in the treatment of wastewater, assembling of superfluous food and, thus, produces valued biomass which has various applications. Besides this, they enrich and improve the quality of water as they are photosynthetic autotrophs. Currently, Cyanobacteria gained momentum for remediation of wastewaters because firstly, they enhances the O2 content of waters through photosynthesis and perform bioremediation of some heavy metals. Secondly, Cyanobacteria play significant roles in distressing the biological oxygen demand, chemical oxygen demand, turbidity, minerals and microbes; thirdly, they can be used either as axenic cultures or as mixed cultures both offering distinct advantages. Lastly, some species are tolerant towards extreme temperatures both low and high, acidic pH, high salt concentrations and heavy metals, which makes them outstanding candidates for the wastewater treatment plants. The suitable immobilization methods must evolve, better understanding of their morphological and biochemical parameters is required for the optimum growth, easy methods of harvesting the biomass after the treatment are required and more trials on large-scale basis are required before they can be launched on full-fledged basis for wastewater treatments.
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Affiliation(s)
- Iffat Zareen Ahmad
- Department of Bioengineering, Integral University, Lucknow, Uttar Pradesh, India
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9
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Giachino A, Focarelli F, Marles-Wright J, Waldron KJ. Synthetic biology approaches to copper remediation: bioleaching, accumulation and recycling. FEMS Microbiol Ecol 2021; 97:6021318. [PMID: 33501489 DOI: 10.1093/femsec/fiaa249] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 12/02/2020] [Indexed: 12/20/2022] Open
Abstract
One of the current aims of synthetic biology is the development of novel microorganisms that can mine economically important elements from the environment or remediate toxic waste compounds. Copper, in particular, is a high-priority target for bioremediation owing to its extensive use in the food, metal and electronic industries and its resulting common presence as an environmental pollutant. Even though microbe-aided copper biomining is a mature technology, its application to waste treatment and remediation of contaminated sites still requires further research and development. Crucially, any engineered copper-remediating chassis must survive in copper-rich environments and adapt to copper toxicity; they also require bespoke adaptations to specifically extract copper and safely accumulate it as a human-recoverable deposit to enable biorecycling. Here, we review current strategies in copper bioremediation, biomining and biorecycling, as well as strategies that extant bacteria use to enhance copper tolerance, accumulation and mineralization in the native environment. By describing the existing toolbox of copper homeostasis proteins from naturally occurring bacteria, we show how these modular systems can be exploited through synthetic biology to enhance the properties of engineered microbes for biotechnological copper recovery applications.
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Affiliation(s)
- Andrea Giachino
- Faculty of Medical Sciences, Biosciences Institute, Newcastle University, Newcastle upon Tyne, NE2 4HH, United Kingdom
| | - Francesca Focarelli
- Faculty of Medical Sciences, Biosciences Institute, Newcastle University, Newcastle upon Tyne, NE2 4HH, United Kingdom
| | - Jon Marles-Wright
- School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne, NE1 7RU, United Kingdom
| | - Kevin J Waldron
- Faculty of Medical Sciences, Biosciences Institute, Newcastle University, Newcastle upon Tyne, NE2 4HH, United Kingdom
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10
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Shaikh SMS, Tagde JP, Singh PR, Dutta S, Sangolkar LN, Kumar MS. Impact of Port and harbour activities on plankton distribution and dynamics: A multivariate approach. MARINE POLLUTION BULLETIN 2021; 165:112105. [PMID: 33549997 DOI: 10.1016/j.marpolbul.2021.112105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 01/22/2021] [Accepted: 01/24/2021] [Indexed: 06/12/2023]
Abstract
Numerous researches have been conducted to study the impact of Port activities on water quality. However, investigation on the response of the inhabiting biota to Port related extrinsic factors is extremely limited. Using Canonical Correspondence Analysis, comprehensive assessment of plankton population dynamics and distribution corresponding to the spatial heterogeneity in physico-chemical characteristics of harbour and adjacent coastal water is conducted. The results revealed resource competition for nitrate, predator mediated co-existence of species favoured by active switching and Port influenced environmental filtering due to suspended solids, and oil and grease as the predominant factor to modulate the plankton community structure and succession in harbour. The higher heterogeneity in the measured environmental variables at coast revealed dispersion of nutrient and other pollutants from harbour into the adjacent coastal water during ebb tide. Our results indicate reengineering of Port infrastructures and efficient management policies including water quality standards to facilitate proper water circulation and minimize pollution with a long term goal to reconcile economic interest with ecosystem conservation.
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Affiliation(s)
- Siratun Montaha S Shaikh
- Environmental Impact & Sustainability Division, CSIR National Environmental Engineering Institute, Nagpur 440020, India
| | - Jyoti P Tagde
- Environmental Impact & Sustainability Division, CSIR National Environmental Engineering Institute, Nagpur 440020, India
| | - Pooja R Singh
- Environmental Impact & Sustainability Division, CSIR National Environmental Engineering Institute, Nagpur 440020, India
| | - Smita Dutta
- Environmental Impact & Sustainability Division, CSIR National Environmental Engineering Institute, Nagpur 440020, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Lalita N Sangolkar
- Environmental Impact & Sustainability Division, CSIR National Environmental Engineering Institute, Nagpur 440020, India
| | - M Suresh Kumar
- Environmental Impact & Sustainability Division, CSIR National Environmental Engineering Institute, Nagpur 440020, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
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11
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Egbuikwem PN, Naz I, Saroj DP. Appraisal of suspended growth process for treatment of mixture of simulated petroleum, textile, domestic, agriculture and pharmaceutical wastewater. ENVIRONMENTAL TECHNOLOGY 2020; 41:3338-3353. [PMID: 31038403 DOI: 10.1080/09593330.2019.1609097] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 04/11/2019] [Indexed: 06/09/2023]
Abstract
The unrestricted discharge of domestic and industrial wastewaters along with agricultural runoff water into the environment as mixed-wastewater pose serious threat to freshwater resources in many countries. Mixed-wastewater pollution is a common phenomenon in the developing countries as the technologies to treat the individual waste streams at source are lacking due to high operational and maintenance costs. Therefore, the need to explore the potential of the suspended growth process which is a well-established process technology for biological wastewater treatment is the focus of this paper. Different wastewater constituents: representing domestic, pharmaceutical, textile, petroleum, and agricultural runoff were synthesized as a representative of mixed-wastewater and treated in two semi-continuous bioreactors (R1 & R2) operated at constant operating conditions, namely MLSS (mg/L): 4640-R1, 4440-R2, SRT: 21-d, HRT: 48-72 h, and uncontrolled pH. The system attained stable condition in day 97, with average COD, BOD and TSS reduction as 84.5%, 86.2%, and 72.2% for R1; and 85.1%, 87.9%, and 75.1% for R2, respectively. Phosphate removal on average was by 74.3% in R1 and 76.6% in R2, while average nitrification achieved in systems 1 and 2 were 56.8% and 54.7%, respectively. The biological treatment system has shown potential for improving the quality of mixed-wastewater to the state where reuse may be considered and tertiary treatment can be employed to polish the effluent quality.
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Affiliation(s)
- Precious N Egbuikwem
- Department of Civil and Environmental Engineering, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford, UK
- Department of Agricultural and Environmental Engineering, School of Engineering Technology, Imo State Polytechnic Umuagwo, Owerri, Nigeria
| | - Iffat Naz
- Department of Civil and Environmental Engineering, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford, UK
- Department of Biology, Scientific Unit, Deanship of Educational Services, Qassim University, Buraidah, Saudi Arabia
| | - Devendra P Saroj
- Department of Civil and Environmental Engineering, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford, UK
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12
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Arias DM, Uggetti E, García J. Assessing the potential of soil cyanobacteria for simultaneous wastewater treatment and carbohydrate-enriched biomass production. ALGAL RES 2020. [DOI: 10.1016/j.algal.2020.102042] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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13
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Peng J, Kumar K, Gross M, Kunetz T, Wen Z. Removal of total dissolved solids from wastewater using a revolving algal biofilm reactor. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2020; 92:766-778. [PMID: 31715042 DOI: 10.1002/wer.1273] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Revised: 11/02/2019] [Accepted: 11/06/2019] [Indexed: 06/10/2023]
Abstract
Total dissolved solids (TDS) comprising inorganic salts and organic matters are pollutants of concern to aquatic systems and water for human use. This work aimed to investigate the use of revolving algal biofilm (RAB) reactors as a sustainable and environmental friendly method to remove TDS from industrial effluents and municipal wastewaters. The wastewaters contained chloride, sodium, potassium, calcium, magnesium, and sulfate as the major components. The RAB reactors fed with synthetic industrial effluent with high TDS level demonstrated the best algal growth, with the highest TDS removal efficiency (27%) and removal rate (2,783 mg/L-day and 19,530 mg/m2 -day). A suspended algal culture system only removed 3% TDS from the same wastewater. The TDS removal by the RAB reactors was considered due to several mechanisms such as absorption by the algae cells, adsorption by extracellular polymeric substance of the biofilm, and/or precipitation. Collectively, this research shows that the RAB reactors can serve as an efficient system in wastewater remediation for TDS removal. PRACTITIONER POINTS: Total dissolved solids (TDS) in wastewater are pollutants of concern. The RAB reactors can remove TDS from various types of wastewater. The RAB reactors removed TDS by adsorbing ions elements such as Cl, Na, K, Ca, Mg, and S. The algal biomass absorbs ions through extracellular polymeric substance.
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Affiliation(s)
- Juan Peng
- Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, School of Marine Sciences, Sun Yat-Sen University, Guangzhou, China
- Department of Food Science and Human Nutrition, Iowa State University, Ames, Iowa
| | - Kuldip Kumar
- Metropolitan Water Reclamation District of Greater Chicago, Chicago, Illinois
| | | | - Thomas Kunetz
- Metropolitan Water Reclamation District of Greater Chicago, Chicago, Illinois
| | - Zhiyou Wen
- Department of Food Science and Human Nutrition, Iowa State University, Ames, Iowa
- Gross-Wen Technologies Inc., Ames, Iowa
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14
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Production of polymers by cyanobacteria grown in wastewater: Current status, challenges and future perspectives. N Biotechnol 2020; 55:46-57. [DOI: 10.1016/j.nbt.2019.09.001] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 09/07/2019] [Accepted: 09/13/2019] [Indexed: 11/20/2022]
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15
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Velu C, Cirés S, Brinkman DL, Heimann K. Bioproduct Potential of Outdoor Cultures of Tolypothrix sp.: Effect of Carbon Dioxide and Metal-Rich Wastewater. Front Bioeng Biotechnol 2020; 8:51. [PMID: 32117931 PMCID: PMC7026013 DOI: 10.3389/fbioe.2020.00051] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 01/22/2020] [Indexed: 11/13/2022] Open
Abstract
Rising CO2 levels, associated climatic instability, freshwater scarcity and diminishing arable land exacerbate the challenge to maintain food security for the fast growing human population. Although coal-fired power plants generate large amounts of CO2 emissions and wastewater, containing environmentally unsafe concentrations of metals, they ensure energy security. Nitrogen (N2)-fixation by cyanobacteria eliminate nitrogen fertilization costs, making them promising candidates for remediation of waste CO2 and metals from macronutrient-poor ash dam water and the biomass is suitable for phycocyanin and biofertilizer product development. Here, the effects of CO2 and metal mixtures on growth, bioproduct and metal removal potential were investigated for the self-flocculating, N2-fixing freshwater cyanobacterium Tolypothrix sp. Tolypothrix sp. was grown outdoors in simulated ash dam wastewater (SADW) in 500 L vertical bag suspension cultures and as biofilms in modified algal-turf scrubbers. The cultivation systems were aerated with air containing either 15% CO2 (v/v) or not. CO2-fertilization resulted in ∼1.25- and 1.45-fold higher biomass productivities and ∼40 and 27% increased phycocyanin and phycoerythrin contents for biofilm and suspension cultures, respectively. CO2 had no effect on removal of Al, As, Cu, Fe, Sr, and Zn, while Mo removal increased by 37% in both systems. In contrast, Ni removal was reduced in biofilm systems, while Se removal increased by 73% in suspension cultures. Based on biomass yields and biochemical data obtained, net present value (NPV) and sensitivities analyses used four bioproduct scenarios: (1) phycocyanin sole product, (2) biofertilizer sole product, (3) 50% phycocyanin and 50% biofertilizer, and (4) 100% phycocyanin and 100% biofertilizer (residual biomass) for power station co-located and not co-located 10 ha facilities over a 20-year period. Economic feasibility for the production of food-grade phycocyanin either as a sole product or with co-production of biofertilizer was demonstrated for CO2-enriched vertical and raceway suspension cultures raised without nitrogen-fertilization and co-location with power stations significantly increased profit margins.
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Affiliation(s)
- Chinnathambi Velu
- North Queensland Algal Identification Facility, Aquaculture, College of Science and Engineering, James Cook University, Townsville, QLD, Australia
| | - Samuel Cirés
- North Queensland Algal Identification Facility, Aquaculture, College of Science and Engineering, James Cook University, Townsville, QLD, Australia
- Departamento de Biología, Universidad Autónoma de Madrid, Madrid, Spain
| | - Diane L. Brinkman
- Australian Institute of Marine Science (AIMS), Townsville, QLD, Australia
| | - Kirsten Heimann
- North Queensland Algal Identification Facility, Aquaculture, College of Science and Engineering, James Cook University, Townsville, QLD, Australia
- Centre for Marine Bioproducts Development (CMBD), College of Medicine and Public Health, Flinders University, Bedford Park, SA, Australia
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16
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Predicting removal kinetics of biochemical oxygen demand (BOD) and nutrients in a pilot scale fed-batch algal wastewater treatment system. ALGAL RES 2019. [DOI: 10.1016/j.algal.2019.101643] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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17
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Zinicovscaia I, Safonov A, Ostalkevich S, Gundorina S, Nekhoroshkov P, Grozdov D. Metal ions removal from different type of industrial effluents using Spirulina platensis biomass. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2019; 21:1442-1448. [PMID: 31244333 DOI: 10.1080/15226514.2019.1633264] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The biomass of the cyanobacterium Spirulina platensis was used for metal removal from four industrial effluents with different chemical composition. The process of metal bioaccumulation (alive biomass) and biosorption (dry biomass) was studied at the native effluents pH as well as the pH 9.5. Metal uptake by S. platensis biomass was determined by means of neutron activation analysis (NNA). The obtained results show different affinity of biomass to metals presented in effluents. The results of this study have indicated that S. platensis is a very good candidate for the removal of heavy metals from complex industrial effluents.
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Affiliation(s)
- Inga Zinicovscaia
- Joint Institute for Nuclear Research, Moscow, Russia
- Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering, Bucharest, Romania
| | - Alexey Safonov
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Moscow, Russia
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18
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Mixotrophy in Synechocystis sp. for the treatment of wastewater with high nutrient content: effect of CO2 and light. Bioprocess Biosyst Eng 2019; 42:1661-1669. [DOI: 10.1007/s00449-019-02162-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Accepted: 06/14/2019] [Indexed: 12/26/2022]
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19
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Decoupling a novel Trichormus variabilis-Synechocystis sp. interaction to boost phycoremediation. Sci Rep 2019; 9:2511. [PMID: 30792472 PMCID: PMC6385349 DOI: 10.1038/s41598-019-38997-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Accepted: 12/18/2018] [Indexed: 11/24/2022] Open
Abstract
To conserve freshwater resources, domestic and industrial wastewater is recycled. Algal systems have emerged as an efficient, low-cost option for treatment (phycoremediation) of nutrient-rich wastewater and environmental protection. However, industrial wastewater may contain growth inhibitory compounds precluding algal use in phycoremediation. Therefore, extremophyte strains, which thrive in hostile environments, are sought-after. Here, we isolated such an alga - a strain of Synechocystis sp. we found to be capable of switching from commensal exploitation of the nitrogen-fixing Trichormus variabilis, for survival in nitrogen-deficient environments, to free-living growth in nitrate abundance. In nitrogen depletion, the cells are tethered to polysaccharide capsules of T. variabilis using nanotubular structures, presumably for nitrate acquisition. The composite culture failed to establish in industrial/domestic waste effluent. However, gradual exposure to increasing wastewater strength over time untethered Synechocystis cells and killed off T. variabilis. This switched the culture to a stress-acclimated monoculture of Synechocystis sp., which rapidly grew and flourished in wastewater, with ammonium and phosphate removal efficiencies of 99.4% and 97.5%, respectively. Therefore, this strain of Synechocystis sp. shows great promise for use in phycoremediation, with potential to rapidly generate biomass that can find use as a green feedstock for valuable bio-products in industrial applications.
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20
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Valorization of Microalgae Biomass by Its Use for the Removal of Paracetamol from Contaminated Water. WATER 2017. [DOI: 10.3390/w9050312] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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21
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Mehri I, Lajnef R, Rejab AB, Khessairi A, Cherif H, Ouzari H, Hassen A. Biofilms in bioremediation and wastewater treatment: characterization of bacterial community structure and diversity during seasons in municipal wastewater treatment process. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:3519-3530. [PMID: 27878485 DOI: 10.1007/s11356-016-8090-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Accepted: 11/09/2016] [Indexed: 05/02/2023]
Abstract
The bacterial community structure and diversity were assessed at the scale of rotating biodisk procedure (RB) in a semi-industrial pilot plant. As well, the Salmonella community was particularly monitored, and the effects of ultraviolet (UV-C254) on the bacterial community were studied. The identification of dominant bacteria revealed the presence of beneficial and useful species that could play an important role in the process of wastewater purification. Several species as Enterobacter agglomerans, Cronobacter sakazakii, and Pantoea agglomerans known for their bioremediation activities were revealed in the majority of biofilm samples. Common detection of Salmonella community provides evidence that the RB system did not seriously affect Salmonella. Furthermore, the investigation on the (UV)-C254 inactivation of the whole bacterial community, in secondary treated wastewater, showed variable UV resistance results. No Salmonella detection was registered at a dose of around 1440 mW s cm-2 since a total disappearance of Salmonella was recorded.
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Affiliation(s)
- Ines Mehri
- Water Research and Technology Centre (CERTE), Borj Cédria Technology Park, P.O. BOX 273, Soliman, 8020, Tunisia
| | - Rim Lajnef
- Water Research and Technology Centre (CERTE), Borj Cédria Technology Park, P.O. BOX 273, Soliman, 8020, Tunisia
| | - Asma Ben Rejab
- Water Research and Technology Centre (CERTE), Borj Cédria Technology Park, P.O. BOX 273, Soliman, 8020, Tunisia
| | - Amel Khessairi
- Water Research and Technology Centre (CERTE), Borj Cédria Technology Park, P.O. BOX 273, Soliman, 8020, Tunisia
| | - Hanene Cherif
- Water Research and Technology Centre (CERTE), Borj Cédria Technology Park, P.O. BOX 273, Soliman, 8020, Tunisia
| | - Hadda Ouzari
- Laboratoire Microorganisme and Biomolécules Actives, Département de Biologie, Faculté des Sciences de Tunis, Campus Universitaire, 2092, Tunis, Tunisia
| | - Abdennaceur Hassen
- Water Research and Technology Centre (CERTE), Borj Cédria Technology Park, P.O. BOX 273, Soliman, 8020, Tunisia
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Lau NS, Matsui M, Abdullah AAA. Cyanobacteria: Photoautotrophic Microbial Factories for the Sustainable Synthesis of Industrial Products. BIOMED RESEARCH INTERNATIONAL 2015; 2015:754934. [PMID: 26199945 PMCID: PMC4496466 DOI: 10.1155/2015/754934] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/03/2015] [Accepted: 06/16/2015] [Indexed: 11/17/2022]
Abstract
Cyanobacteria are widely distributed Gram-negative bacteria with a long evolutionary history and the only prokaryotes that perform plant-like oxygenic photosynthesis. Cyanobacteria possess several advantages as hosts for biotechnological applications, including simple growth requirements, ease of genetic manipulation, and attractive platforms for carbon neutral production process. The use of photosynthetic cyanobacteria to directly convert carbon dioxide to biofuels is an emerging area of interest. Equipped with the ability to degrade environmental pollutants and remove heavy metals, cyanobacteria are promising tools for bioremediation and wastewater treatment. Cyanobacteria are characterized by the ability to produce a spectrum of bioactive compounds with antibacterial, antifungal, antiviral, and antialgal properties that are of pharmaceutical and agricultural significance. Several strains of cyanobacteria are also sources of high-value chemicals, for example, pigments, vitamins, and enzymes. Recent advances in biotechnological approaches have facilitated researches directed towards maximizing the production of desired products in cyanobacteria and realizing the potential of these bacteria for various industrial applications. In this review, the potential of cyanobacteria as sources of energy, bioactive compounds, high-value chemicals, and tools for aquatic bioremediation and recent progress in engineering cyanobacteria for these bioindustrial applications are discussed.
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Affiliation(s)
- Nyok-Sean Lau
- Centre for Chemical Biology, Universiti Sains Malaysia, 11900 Bayan Lepas, Penang, Malaysia
| | - Minami Matsui
- Synthetic Genomics Research Team, RIKEN Centre for Sustainable Resource Science, Biomass Engineering Research Division, Yokohama, Kanagawa 230-0045, Japan
| | - Amirul Al-Ashraf Abdullah
- Centre for Chemical Biology, Universiti Sains Malaysia, 11900 Bayan Lepas, Penang, Malaysia
- School of Biological Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia
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23
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Renuka N, Sood A, Ratha SK, Prasanna R, Ahluwalia AS. Nutrient sequestration, biomass production by microalgae and phytoremediation of sewage water. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2013; 15:789-800. [PMID: 23819275 DOI: 10.1080/15226514.2012.736436] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The present work was aimed at analysing the role of inoculated microalgae in nutrient dynamics, bioremediation and biomass production of sewage water. Preliminary microscopic analyses of sewage water revealed the presence of different algal groups, with predominance of Cyanophyta. Among the inoculated strains, Calothrix showed highest dry cell weight (916.67 mg L(-1)), chlorophyll and carotenoid content in tap water + sewage water (1:1) treatment. Significant removal of NO3-N ranging from 57-78% and PO4-P (44-91%) was recorded in microalgae inoculated tap water + sewage water. The total dissolved solids and electrical conductivity of tap water + sewage water after incubation with Calothrix sp. decreased by 28.5 and 28.0%, accompanied by an increase in dissolved oxygen from 4.4 to 6.4 mg L(-1) on the 20th day. Our investigation revealed the robustness of Calothrix sp. in sequestering nutrients (N and P), improving water quality and proliferating in sewage water.
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Affiliation(s)
- N Renuka
- Department of Botany, Panjab University, Chandigarh, India
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24
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El Bestawy E, Helmy S, Hussein H, Fahmy M. Optimization and/or acclimatization of activated sludge process under heavy metals stress. World J Microbiol Biotechnol 2012; 29:693-705. [DOI: 10.1007/s11274-012-1225-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2012] [Accepted: 11/29/2012] [Indexed: 10/27/2022]
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