scholarly journals Bibliometric Analysis of Hydrocarbon Bioremediation in Cold Regions and a Review on Enhanced Soil Bioremediation

Biology ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 354
Author(s):  
How Swen Yap ◽  
Nur Nadhirah Zakaria ◽  
Azham Zulkharnain ◽  
Suriana Sabri ◽  
Claudio Gomez-Fuentes ◽  
...  
Keyword(s):  
Bibliometric Analysis ◽  
Cost Effective ◽  
Ex Situ ◽  
Soil Bioremediation ◽  
Cold Regions ◽  
Cold Environments ◽  
Enhanced Bioremediation ◽  
Hydrocarbon Removal ◽  
Cold Condition ◽  
Microbial Bioremediation

The increased usage of petroleum oils in cold regions has led to widespread oil pollutants in soils. The harsh environmental conditions in cold environments allow the persistence of these oil pollutants in soils for more than 20 years, raising adverse threats to the ecosystem. Microbial bioremediation was proposed and employed as a cost-effective tool to remediate petroleum hydrocarbons present in soils without significantly posing harmful side effects. However, the conventional hydrocarbon bioremediation requires a longer time to achieve the clean-up standard due to various environmental factors in cold regions. Recent biotechnological improvements using biostimulation and/or bioaugmentation strategies are reported and implemented to enhance the hydrocarbon removal efficiency under cold conditions. Thus, this review focuses on the enhanced bioremediation for hydrocarbon-polluted soils in cold regions, highlighting in situ and ex situ approaches and few potential enhancements via the exploitation of molecular and microbial technology in response to the cold condition. The bibliometric analysis of the hydrocarbon bioremediation research in cold regions is also presented.

scholarly journals Microbial Bioremediation Technology of Some Agro Industrial Wastes and Pesticides

2021 ◽  
Vol 4 (1) ◽  
Keyword(s):  
Cost Effective ◽  
Biodiversity Loss ◽  
Industrial Wastes ◽  
Ex Situ ◽  
Process Understanding ◽  
Metabolic Capability ◽  
Cost Effective Alternative ◽  
Land Farming ◽  
Microbial Bioremediation ◽  
Sensitive Issues

Environmental pollution is the global sensitive issues currently resulting ecological crises, drastic climate change and biodiversity loss. Bioremediation is one of an ecofriendly and cost effective alternative strategy for removing different pollutant waste using microorganisms. Different types of ex-situ and in-situ bioremediation service these are biopiling, composting, Land farming, bioventing, biosparging, biostimulation, bioagumention are employed to treat heavy metal waste, Petroleum hydrocarbon, agro-industreal, dyestuff, agrochemicals, organic and volatile compound, lignocellulose biomass and nuclear waste. Several microorganisms (natural/exotic/ engineered) having specific metabolic capability and various enzyme production ability which fall under six main divisions include Oxidoreductases, Transferases, Hydrolases, Lyases, Isomerases and Ligases (synthetases) are used during bioremediation process. Understanding the mechanism, mode of action and role of microorgsnism in bioremediation process is essential to utilize microorganism potential and designe waste management strategy.

scholarly journals Transformation of a petroleum pollutant during soil bioremediation experiments

2008 ◽  
Vol 73 (5) ◽  
pp. 577-583 ◽  
Author(s):  
B. Jovancicevic ◽  
M. Antic ◽  
M. Vrvic ◽  
M. Ilic ◽  
M. Novakovic ◽  
...  
Keyword(s):  
Microbial Consortium ◽  
Polluted Soil ◽  
Oil Refinery ◽  
Danube River ◽  
Ex Situ ◽  
Insoluble Residue ◽  
Soil Bioremediation ◽  
Alluvial Formation ◽  
Oil Type ◽  
Petroleum Pollutant

The experiment of ex situ soil bioremediation was performed at the locality of the Oil Refinery in Pancevo (alluvial formation of the Danube River, Serbia) polluted with an oil type pollutant. The experiments of biostimulation, bioventilation and reinoculation of an autochthonous microbial consortium were performed during the six-month period (May-November 2006). The changes in the quantity and composition of the pollutant, or the bioremediation effect, were monitored by analysis of the samples of the polluted soil taken in time spans of two weeks. In this way, from the beginning until the end of the experiment, 12 samples were collected and marked as P1-P12 (Pancevo 1-Pancevo 12). The results obtained showed that more significant changes in the composition of the oil pollutant occurred only during the last phases of the experiment (P8-P12). The activity of microorganisms was reflected in the increase of the quantity of polar oil fractions, mainly fatty acid fractions. In this way, the quantity of total eluate increased, and the quantity of the insoluble residue was reduced to a minimum, whereby the oil pollutant was transformed to a form that could be removed more efficiently and more completely from the soil, as a segment of the environment.

scholarly journals Building a Global System for the Conservation of all Plant Diversity

2016 ◽  
pp. 5-13
Author(s):  
Paul Smith
Keyword(s):  
Plant Species ◽  
Plant Diversity ◽  
Plant Conservation ◽  
Professional Community ◽  
Cost Effective ◽  
Global Network ◽  
Ex Situ ◽  
Botanic Gardens ◽  
Global System ◽  
Wide Range

Botanic gardens and arboreta offer the opportunity to conserve and manage a wide range of plant diversity ex situ, and in situ in the broader landscape. The rationale that botanic gardens have a major role to play in preventing plant species extinctions is based on the assumptions that (1) there is no technical reason why any plant species should become extinct, and (2) that, as a professional community, botanic gardens possess a unique set of skills that encompass finding, identifying, collecting, conserving and growing plant diversity across the entire taxonomic spectrum. Botanic Gardens Conservation International (BGCI) is the pivotal centre of a global network of c. 2,600 botanic gardens and arboreta, which includes living collections representing at least one-third of known plant diversity; world class seed banks, glasshouses and tissue culture infrastructures; and technical knowledge networks covering all aspects of plant conservation. Following the example of the crop conservation community, BGCI is promoting the concept of a cost-effective, rational,botanic garden-centred Global System for the conservation and management of plant diversity.This system will aim to collect, conserve, characterise and cultivate samples from all of the world’s rare and threatened plants as an insurance policy against their extinction in the wild and as a source of plant material for human innovation, adaptation and resilience.

Key issues facing genebanks in preserving crop genetic diversity ex situ: overview of the range of challenges

2021 ◽  
pp. 139-154
Author(s):  
Paula Bramel ◽  
Keyword(s):  
Genetic Diversity ◽  
Genetic Resources ◽  
Plant Genetic Resources ◽  
Cost Effective ◽  
Ex Situ ◽  
Crop Genetic Diversity ◽  
Ex Situ Collections ◽  
Key Issues ◽  
Market Preference ◽  
The Impact

This chapter reviews the key issues and challenges facing genebanks in preserving crop genetic diversity ex situ. Local crop genetic diversity is challenged with changes in land use, urbanization, land degradation, changes in agricultural practises, availability of improved varieties, changes in market preference, and the impact of climate change. Efforts have been made to secure plant genetic resources ex situ for future use but there are significant issues related to cost effective, efficient, secure, rational, and sustainable long-term ex situ conservation. It begins by addressing issues for the composition of ex situ collections and moves on to discuss issues for routine operations for conservation. The chapter also highlights issues for the use of conserved genetic resources, before concluding with a summary of why the development of sustainable genebank systems is so important.

scholarly journals Soil Bioremediation: Overview of Technologies and Trends

Energies ◽  
2020 ◽  
Vol 13 (18) ◽  
pp. 4664
Author(s):  
Israel Gonçalves Sales da Silva ◽  
Fabíola Carolina Gomes de Almeida ◽  
Nathália Maria Padilha da Rocha e Silva ◽  
Alessandro Alberto Casazza ◽  
Attilio Converti ◽  
...  
Keyword(s):  
Contaminated Soils ◽  
Petroleum Hydrocarbons ◽  
Ex Situ ◽  
Soil Bioremediation ◽  
Application Of Surfactants ◽  
Agricultural Pesticides ◽  
Advantages And Disadvantages ◽  
Microbiological Characteristics ◽  
Extent Of Damage

Petroleum hydrocarbons, heavy metals and agricultural pesticides have mutagenic, carcinogenic, immunotoxic and teratogenic effects and cause drastic changes in soil physicochemical and microbiological characteristics, thereby representing a serious danger to health and environment. Therefore, soil pollution urgently requires the application of a series of physicochemical and biological techniques and treatments to minimize the extent of damage. Among them, bioremediation has been shown to be an alternative that can offer an economically viable way to restore polluted areas. Due to the difficulty in choosing the best bioremediation technique for each type of pollutant and the paucity of literature on soil bioremediation enhanced by the use of specific additives, we reviewed the main in situ and ex situ methods, their current properties and applications. The first section discusses the characteristics of each class of pollutants in detail, while the second section presents current bioremediation technologies and their main uses, followed by a comparative analysis showing their respective advantages and disadvantages. Finally, we address the application of surfactants and biosurfactants as well as the main trends in the bioremediation of contaminated soils.

scholarly journals The use of vinasse as an amendment to ex-situ bioremediation of soil and groundwater contaminated with diesel oil

2009 ◽  
Vol 52 (4) ◽  
pp. 1043-1055 ◽  
Author(s):  
Adriano Pinto Mariano ◽  
Sérgio Henrique Rezende Crivelaro ◽  
Dejanira de Franceschi de Angelis ◽  
Daniel Marcos Bonotto
Keyword(s):  
Contaminated Soils ◽  
Petroleum Hydrocarbons ◽  
Microbial Population ◽  
Diesel Oil ◽  
Ex Situ ◽  
Total Petroleum Hydrocarbons ◽  
Co2 Production ◽  
Soil Bioremediation ◽  
Negative Effects ◽  
Labile Carbon

This work investigated the possibility of using vinasse as an amendment in ex-situ bioremediation processes. Groundwater and soil samples were collected at petrol stations. The soil bioremediation was simulated in Bartha biometer flasks, used to measure the microbial CO2 production, during 48 days, where vinasse was added at a concentration of 33 mL.Kg-1of soil. Biodegradation efficiency was also measured by quantifying the total petroleum hydrocarbons (TPH) by gas chromatography. The groundwater bioremediation was carried out in laboratory experiments simulating aerated (bioreactors) and not aerated (BOD flasks) conditions. In both the cases, the concentration of vinasse was 5 % (v/v) and different physicochemical parameters were evaluated during 20 days. Although an increase in the soil fertility and microbial population were obtained with the vinasse, it demonstrated not to be adequate to enhance the bioremediation efficiency of diesel oil contaminated soils. The addition of the vinasse in the contaminated groundwaters had negative effects on the biodegradation of the hydrocarbons, since vinasse, as a labile carbon source, was preferentially consumed.

Weathering in cold regions: some thoughts and perspectives

2002 ◽  
Vol 26 (4) ◽  
pp. 577-603 ◽  
Author(s):  
Kevin Hall ◽  
Colin E. Thorn ◽  
Norikazu Matsuoka ◽  
Angelique Prick
Keyword(s):  
Arid Regions ◽  
Chemical Weathering ◽  
Current Theory ◽  
Chemical Processes ◽  
Frame Of Reference ◽  
Cold Environment ◽  
Cold Regions ◽  
Freeze Thaw ◽  
Cold Environments ◽  
Palaeoenvironmental Reconstructions

Weathering in cold regions has primarily focused on the notion of ‘cold’, such that process and landform theory have generally used this both as the developmental criterion and as the outcome of palaeoenvironmental reconstructions based on landforms or sediments. As a result of this approach, the process focus in terms of weathering has been that mechanical processes predominate, with freeze-thaw weathering as the prime agent, and that chemical processes are temperature-inhibited, often to the point of nonoccurrence. Here a reconsideration of the whole conceptual framework of weathering in cold environments is undertaken. It is shown that, contrary to popular presentations, weathering, including chemical weathering, is not temperature-limited but rather is limited by moisture availability. Indeed, summer, and oft-times even winter, rock temperatures are more than adequate to support mechanical and chemical weathering if water is present. Where water is available it is clearly shown that chemical weathering can be a major component of the weathering regime. The argument is made that there is no zonality to cold environment weathering as none of the processes or process associations are unique to cold regions; indeed, many cold regions show similar weathering assemblages to those in hot arid regions. Process-form relationships are also questioned. The assumption of angularity with weathering in cold regions is questioned, all the more so as hot arid studies identify exactly the same angularity of debris form. Further, that all forms have to be angular is shown by field examples to be no more than an artefact of original unquestioning and oft-repeated assumptions, now over a century or more old. The argument is made that there is a strong need for the reconsideration of the nature of weathering in cold environments, that current theory should be questioned and challenged, and field observation undertaken within this revised frame of reference.

scholarly journals Bio Remedial Potential for the Treatment of Contaminated Soils

2021 ◽  
Vol 2 (4) ◽  
pp. 53-58
Author(s):  
Hasnain Raza ◽  
Keyword(s):  
Heavy Metal ◽  
Contaminated Soil ◽  
Contaminated Soils ◽  
Anthropogenic Activities ◽  
Cost Effective ◽  
Polluted Soil ◽  
Soil Bioremediation ◽  
Environmental Threat ◽  
The World

As anthropogenic activities rise over the world, representing an environmental threat, soil contamination and treatment of polluted areas have become a worldwide concern. Bioremediation is a sustainable technique that could be a cost-effective mitigating solution for heavy metal-polluted soil regeneration. Due to the difficulties in determining the optimum bioremediation methodology for each type of pollutant and the lack of literature on soil bioremediation, we reviewed the main in-situ type, their current properties, applications, and techniques, plants, and microbe’s efficiency for treatment of contaminated soil. In this review, we describe the deeper knowledge of the in-situ types of bioremediation and their different pollutant accumulation mechanisms.

scholarly journals Sustainable Development of Smart Manufacturing Driven by the Digital Twin Framework: A Statistical Analysis

2021 ◽  
Vol 13 (18) ◽  
pp. 10139
Author(s):  
Vivek Warke ◽  
Satish Kumar ◽  
Arunkumar Bongale ◽  
Ketan Kotecha
Keyword(s):  
Bibliometric Analysis ◽  
Industrial Revolution ◽  
Cost Effective ◽  
Smart Manufacturing ◽  
Future Research ◽  
Digital Twin ◽  
Network Analyses ◽  
Research Areas ◽  
Enabling Technologies ◽  
Research Theme

The Fourth Industrial Revolution drives industries from traditional manufacturing to the smart manufacturing approach. In this transformation, existing equipment, processes, or devices are retrofitted with some sensors and other cyber-physical systems (CPS), and adapted towards digital production, which is a blend of critical enabling technologies. In the current scenario of Industry 4.0, industries are shaping themselves towards the development of customized and cost-effective processes to satisfy customer needs with the aid of a digital twin framework, which enables the user to monitor, simulate, control, optimize, and identify defects and trends within, ongoing process, and reduces the chances of human prone errors. This paper intends to make an appraisal of the literature on the digital twin (DT) framework in the domain of smart manufacturing with the aid of critical enabling technologies such as data-driven systems, machine learning and artificial intelligence, and deep learning. This paper also focuses on the concept, evolution, and background of digital twin and the benefits and challenges involved in its implementation. The Scopus and Web of Science databases from 2016 to 2021 were considered for the bibliometric analysis and used to study and analyze the articles that fall within the research theme. For the systematic bibliometric analysis, a novel approach known as Proknow-C was employed, including a series of procedures for article selection and filtration from the existing databases to get the most appropriate articles aligned with the research theme. Additionally, the authors performed statistical and network analyses on the articles within the research theme to identify the most prominent research areas, journal/conference, and authors in the field of a digital twin. This study identifies the current scenarios, possible research gaps, challenges in implementing DT, case studies and future research goals within the research theme.

3D-Printed Samples For EXLO/INLO Practice and Training

2019 ◽  
Author(s):  
Zachary A. Giannuzzi ◽  
Lucille A. Giannuzzi ◽  
Kathleen A. Gehoski ◽  
William J. Mahoney
Keyword(s):  
3D Printing ◽  
Focused Ion Beam ◽  
Ion Beam ◽  
Deliberate Practice ◽  
Cost Effective ◽  
Ex Situ ◽  
Training Samples ◽  
3D Printed ◽  
And Training

Abstract Practice and training samples have been manufactured using 3D-printing methods. These 3D-printed samples mimic the exact geometry of focused ion beam (FIB) prepared specimens and can be used to help master ex situ and in situ lift out micromanipulation methods. An additively manufactured array of samples yields numerous samples needed for repetition and deliberate practice necessary to master the lift out and micromanipulation steps. The 3D-printed samples are cost effective and negates expensive FIB time needed to prepare FIB specimens.

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