Microbially Induced Desaturation and Carbonate Precipitation through Denitrification: A Review

Microbially induced carbonate precipitation (MICP) has been proposed as a sustainable approach to solve various environmental, structural, geotechnical and architectural issues. In the last decade, a ubiquitous microbial metabolism, nitrate reduction (also known as denitrification) got attention in MICP research due to its unique added benefits such as simultaneous corrosion inhibition in concrete and desaturation of porous media. The latter even upgraded MICP into a more advanced concept called microbially induced desaturation and precipitation (MIDP) which is being investigated for liquefaction mitigation. In this paper, we present the findings on MICP through denitrification by covering applications under two main titles: (i) applications solely based on MICP, such as soil reinforcement, development of microbial self-healing concrete, restoration of artwork and historical monuments, and industrial wastewater treatment, (ii) an application based on MIDP: liquefaction mitigation. After explaining the denitrification process in detail and describing the MICP and MIDP reaction system occurring through denitrification metabolism, the most recent advances in each potential field of application are collected, addressing the novel findings and limitations, to provide insights toward the practical applications in situ. Finally, the research needs required to deal with the defined challenges in application-oriented upscaling and optimization of MICP through denitrification are suggested. Overall, collected research findings revealed that MICP through denitrification possesses a great potential to replace conventionally used petrochemical-based, labour intensive, destructive and economically unfeasible techniques used in construction industry with a bio-based, labourless, low-carbon technology. This worldwide applicable bio-based technology will facilitate the sustainable development and contribute to the carbon-emission-reduction.

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Assessment of wood industrial pollutants based on emission coefficients in China

Holzforschung ◽

10.1515/hf-2019-0201 ◽

2020 ◽

Vol 74 (11) ◽

pp. 1071-1078

Author(s):

Jie Chu ◽

Anuj Kumar

Keyword(s):

Sustainable Development ◽

Circular Economy ◽

Industrial Waste ◽

Water Discharge ◽

Medium Density Fiberboard ◽

Oxygen Demand ◽

Low Carbon ◽

The Sustainable Development ◽

Waste Gas ◽

Industrial Gases

AbstractThe implementation of circular economy in wood industries is an effective way for future sustainable development. The wood industries in China are not in the direction of circular economy approach due to less availability of assessment/calculation data of pollutants as per life cycle assessment (LCA) criteria. The present study focuses on the calculation of emission and pollutants from wood industries as per LCA; the emission and pollution data were collected from fiberboard Medium-density fiberboard (MDF), plywood and particleboard (PB) production. The comparative analysis of dust emissions, industrial waste gases and chemical oxygen demand (COD) were performed among three wood industries. The results revealed that the fiberboard industry was the highest emitter of dust, industrial waste gas and COD; and particleboard industry was the least emitter. Further, results indicated that pollutant index of wood industries were significantly changed between 2015 and 2017; the industrial waste water discharge increased five folds and the COD, dust and industrial gases increased two times. This study provides with the emission and pollutants data of wood industries as per LCA to promote the sustainable development for circular and low carbon economics.

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Research on the Sustainable Operation of Low-Carbon Tourism Supply Chain under Sudden Crisis Prediction

Sustainability ◽

10.3390/su13158228 ◽

2021 ◽

Vol 13 (15) ◽

pp. 8228

Author(s):

Lu Zhang ◽

Deqing Ma ◽

Jinsong Hu

Keyword(s):

Supply Chain ◽

Jump Processes ◽

Travel Agency ◽

Tourist Attraction ◽

Low Carbon ◽

Sustainable Operations ◽

The Sustainable Development ◽

Crisis Events ◽

Continuous Dynamic ◽

Tourism Supply Chain

This paper integrates a low-carbon tourism supply chain consisting of a low-carbon tourist attraction (LTA) providing a low-carbon service and an online travel agency (OTA) responsible for big data marketing. Consumers may also encounter sudden crisis events that occur in the tourist attraction during their visit, and the occurrence of crisis events can damage the low-carbon goodwill of the tourist attraction to the detriment of the sustainable development of the supply chain. Therefore, this paper aims to investigate how tourism firms can develop dynamic strategies in the pre-crisis environment if they envision the occurrence of a crisis event and how crisis events affect interfirm cooperation. This paper uses stochastic jump processes to portray the dynamic evolution of low-carbon goodwill in the context of crisis events and introduces the methods of the differential game and Bellman’s continuous dynamic programming theory to study the sustainable operations of low-carbon tourism supply chains. Our findings provide important managerial insights for enterprises in the tourism supply chain and suggest that they need to not only become aware of the tourist attraction crisis events, but also, more importantly, they need to adjust their appropriate input strategies based on the degree of anticipation of the crisis.

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Research on Countermeasures Used in Low-Carbon Economy to Promote the Sustainable Development in Fujian Province of China

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.347-353.2811 ◽

2011 ◽

Vol 347-353 ◽

pp. 2811-2814

Author(s):

Nan Zhu ◽

Bao Ming Li

Keyword(s):

Economic Growth ◽

Sustainable Development ◽

Legal System ◽

Low Carbon ◽

Fujian Province ◽

Conservation Of Energy ◽

The Sustainable Development ◽

Low Carbon Economy ◽

Develop Economy ◽

Carbon Economy

Low-carbon economy is a new path which our country is taking to develop economy. As one of the provinces in the southeast coast of China, Fujian develop a low-carbon economy directly relating to the transformation of its economic growth, conservation of energy, improvement of productivity, innovation of technology and so on. We can say that the development of low-carbon economy directly affects the sustainable development of economy and society in Fujian province of China. Therefore, firstly, we believe that government and enterprise should optimize the allocation of resource and improve the utilization of resource. Secondly, the tax policies are supposed to adjust to stimulate the development of environmental protection industry. Thirdly, government should accelerate the construction of infrastructures. Fourthly, the legal system needs to be built and perfected so as to promote the development of low-carbon economy. At last, the investment of techniques is supposed to increase to a certain degree, and the ability of innovation and management of enterprises should be promoted to adapt the development of low-carbon economy of Fujian province.

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A Study on Urban Low-Carbon Landscape Construction

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.129-131.42 ◽

2010 ◽

Vol 129-131 ◽

pp. 42-45

Author(s):

Li Fang Qiao ◽

Lei Feng ◽

Lian Fang Yao ◽

Xin Zheng Li

Keyword(s):

Sustainable Development ◽

Urban Landscape ◽

Landscape Planning ◽

Carbon Sink ◽

Landscape Design ◽

Ecological Environment ◽

Source Control ◽

Low Carbon ◽

The Sustainable Development ◽

Carbon Policy

The landscape industry has become one of the industries with higher resource and energy consumption, and the implementation of urban low-carbon landscape construction is of great significance to improve the ecological environment. In this study, the method of low-carbon landscape construction was studied from two aspects including the carbon source control and carbon sink, as well as both direct and indirect effect. The results showed that the low-carbon landscape construction can be controlled from five aspects including landscape planning, landscape design, low-carbon landscape technology, low-carbon landscape behavior and low-carbon policy. Through a series of low-carbon measures, carbon emissions can be controlled at a reasonable level during the urban landscape construction, which also promotes the sustainable development of urban ecological environment.

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An Optimal Model for Low-Carbon Urban Agglomeration Based on Energy Structure Reduction under Uncertainty

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.599.211 ◽

2012 ◽

Vol 599 ◽

pp. 211-215

Author(s):

Lun Wang ◽

Zhao Sun ◽

Jing Ya Wen ◽

Zhuang Li ◽

Wen Jin Zhao ◽

...

Keyword(s):

Regional Planning ◽

Energy Intensity ◽

Greenhouse Gas Emission ◽

Urban Agglomeration ◽

Carbon Intensity ◽

Energy Structure ◽

Low Carbon ◽

Optimal Model ◽

The Sustainable Development

This paper developed an optimal model of low-carbon urban agglomeration on the base of energy structure under uncertainty. The case study shows that the carbon intensity was decreased by [32.19, 41.20] (%) and energy intensity was reduced by [34.08, 43.19] (%) compared with those in 2010; meanwhile, the carbon intensity and energy intensity in the core area was reduced by [50.88, 54.11] (%) and [51.24, 54.57] (%) respectively, compared with those in 2010. The optimized scheme could not only meet the requirements of 12th Five-Year Planning Outline of Controlling Greenhouse Gas Emission, but also complied with the requirements of regional planning targets. The established model also provided more decision-making space for the sustainable development of low-carbon urban agglomeration.

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Self-Healing of SiC-Al2O3-B4C Ceramic Composites at Low Temperatures

Materials ◽

10.3390/ma15020652 ◽

2022 ◽

Vol 15 (2) ◽

pp. 652

Author(s):

Baoguo Wang ◽

Rong Tu ◽

Yinglong Wei ◽

Haopeng Cai

Keyword(s):

Flexural Strength ◽

Low Temperatures ◽

Ceramic Composite ◽

Ceramic Composites ◽

Self Healing ◽

Vickers Indentation ◽

Crack Healing ◽

Practical Applications ◽

Plasma Sintering ◽

Spark Plasma

Self-healing ceramics have been researched at high temperatures, but few have been considered at lower temperatures. In this study, SiC-Al2O3-B4C ceramic composite was compacted by spark plasma sintering (SPS). A Vickers indentation was introduced, and the cracks were healed between 600 °C and 800 °C in air. Cracks could be healed completely in air above 700 °C. The ceramic composite had the best healing performance at 700 °C for 30 min, recovering flexural strength of up to 94.2% of the original. Good crack-healing ability would make this composite highly useful as it could heal defects and flaws autonomously in practical applications. The healing mechanism was also proposed to be the result of the oxidation of B4C.

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Self-healing Co3O4@Fe3O4/cellulose Blend Membranes Efficient Degrade Perfluorooctanoic Acid in the Visible Light-driven Photo-fenton System

10.21203/rs.3.rs-862635/v1 ◽

2021 ◽

Author(s):

Wenqiang Chen ◽

Chen Hou ◽

Yang Wang ◽

Linhui Fu ◽

Sufeng Zhang ◽

...

Keyword(s):

Visible Light ◽

Self Assembly ◽

Pure Water ◽

Reaction System ◽

Degradation Pathway ◽

Cellulose Solution ◽

Self Healing ◽

Active Constituent ◽

Visible Light Driven ◽

Fenton System

Abstract Co3O4@Fe3O4/cellulose was synthesized by in-situ self-assembly strategy coating rod-like MOF-derived Fe3O4 with Co3O4 nanoparticles and blending with cellulose solution, further applied in the visible light-driven photo-Fenton system for PFOA degradation. In addition, Co3O4@Fe3O4/cellulose/Vitrimer was obtained to explore the application of self-healing property in photo-Fenton filed and the result turned out to be good self-healing capacity for small cracks. In comparison, Co3O4@Fe3O4/cellulose can degrade around 94.5% PFOA within 180 min in reaction system, which shows better degradation capacity than others catalyst. Moreover, Co3O4@Fe3O4/cellulose was reused by rinsing with ultra-pure water and the degradation capacity was still 80.4% after five cycles. In this system, the results of Electron paramagnetic resonance analysis (EPR) and scavenger experiment suggested that PFOA degradation was a co-dependent mechanism via photogenerated electrons, photogenerated holes (h+) and various radical species, rather than a single active constituent. The degradation pathway of PFOA also was proposed based on UHPLC-MS analysis.

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Industry Revolution IR 4.0: Future Opportunities and Challenges in Construction Industry

MATEC Web of Conferences ◽

10.1051/matecconf/201820302010 ◽

2018 ◽

Vol 203 ◽

pp. 02010 ◽

Cited By ~ 11

Author(s):

Wesam S Alaloul ◽

Mohd Shahir Liew ◽

Noor Amila Wan Abdullah Zawawi ◽

Bashar S Mohammed

Keyword(s):

Construction Industry ◽

Industrial Revolution ◽

Recent Literature ◽

General Idea ◽

The Sustainable Development ◽

Practical Applications ◽

Know How ◽

Research Areas ◽

Identical Construction ◽

Special Rules

The future of construction industry development is the approach of the component-industrialization, the construction-breakdown, design-identical, construction-assembled, operation-data technique to maximize the life cycle value. This paper presents a general idea of Industrial Revolution (IR) 4.0 with the introduction descriptions of important aspects in Construction Industry (CI) development. The aim is to define and show possible research areas connected with the IR 4.0 into the CI. For this purpose, an analysis was made, based on the most recent literature, to point out actual needs in the CI in terms of its evolution into IR 4.0 level. It is shown that multidiscipline approaches are not investigated to create special rules, procedures and methods and know-how designed for introducing the principles of IR 4.0 in the CI. A popular from stakeholders in the CI understand how digitization is affecting each part of their trade, however, its practical applications are still in infancy stage. IR 4.0 concepts should be combined with construction production, novel expertise must be applied to the intellectual engineering of modern construction, enhance the level of incorporation, to achieve the sustainable development.

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Constructing an Environmental Friendly Low-Carbon-Emission Intelligent Transportation System Based on Big Data and Machine Learning Methods

Sustainability ◽

10.3390/su12198118 ◽

2020 ◽

Vol 12 (19) ◽

pp. 8118

Author(s):

Tu Peng ◽

Xu Yang ◽

Zi Xu ◽

Yu Liang

Keyword(s):

Sustainable Development ◽

Environmental Pollution ◽

Carbon Emissions ◽

Carbon Emission ◽

Intelligent Transportation ◽

Exhaust Emissions ◽

Low Carbon ◽

Vehicle Exhaust ◽

The Sustainable Development ◽

Low Carbon Emission

The sustainable development of mankind is a matter of concern to the whole world. Environmental pollution and haze diffusion have greatly affected the sustainable development of mankind. According to previous research, vehicle exhaust emissions are an important source of environmental pollution and haze diffusion. The sharp increase in the number of cars has also made the supply of energy increasingly tight. In this paper, we have explored the use of intelligent navigation technology based on data analysis to reduce the overall carbon emissions of vehicles on road networks. We have implemented a traffic flow prediction method using a genetic algorithm and particle-swarm-optimization-enhanced support vector regression, constructed a model for predicting vehicle exhaust emissions based on predicted road conditions and vehicle fuel consumption, and built our low-carbon-emission-oriented navigation algorithm based on a spatially optimized dynamic path planning algorithm. The results show that our method could help to significantly reduce the overall carbon emissions of vehicles on the road network, which means that our method could contribute to the construction of low-carbon-emission intelligent transportation systems and smart cities.

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Conservation for Sustainable Development: The Sustainability Evaluation of the Xijie Historic District, Dujiangyan City, China

Sustainability ◽

10.3390/su10124645 ◽

2018 ◽

Vol 10 (12) ◽

pp. 4645 ◽

Cited By ~ 8

Author(s):

Huaiyun Kou ◽

Jian Zhou ◽

Jie Chen ◽

Sichu Zhang

Keyword(s):

Sustainable Development ◽

Stakeholder Participation ◽

Evaluation Model ◽

Historic District ◽

Sustainability Evaluation ◽

The Sustainable Development ◽

Historic Districts ◽

Practical Applications ◽

Questionnaire Surveys ◽

Using Data

Historic districts have become a significant aspect of urban diversity and sustainable development, due to their dual attributes of cultural heritage and living community. This study aims to assess the influence of conservation efforts on the sustainable development of historic districts. Based on a literature review, this study designed a sustainability evaluation model that included twelve indicators and twenty-seven sub-indicators, in reference to heritage conservation, stakeholder participation, economic development, and planning and governance. The case study of the Xijie Historic District in Dujiangyan City, China, was selected to apply the model. Using data collected via questionnaire surveys and in-depth interviews, and using qualitative and quantitative combined methods and weighted averages, the model produced the sustainability index of the Xijie Historic District. Further examinations were performed and findings were explored, regarding the conservation efforts for the Xijie Historic District. Despite the research limitation of a lack of multi-sample verification, the results of the assessment are consistent with what is found in practice, demonstrating the validity of the model. The sustainability evaluation model can be applied to various historic districts and regions, by reassigning indicator weights to the different cases; the indicators system also provides references for research and practical applications for the conservation and sustainable development of other heritage types.

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