Energy and water autarky of wastewater treatment and power generation systems

Gude, Veera Gnaneswar

doi:10.1016/j.rser.2015.01.055

Cited by 267 publications

(104 citation statements)

References 55 publications

(76 reference statements)

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“…(2) added with the average fixed cost (Yellow line). Comparing with the average total water cost of the system without the proposed cyber-physical cloud computing (Red line) [28], the total water cost (Blue line) was decreased by the major impact of chemical dosing cost reduction as well as energy consumption cost optimization. Furthermore, the results in Fig.…”

Section: Resultsmentioning

confidence: 99%

Improving the Efficiency of Water Management System in Biomass Power Plant Using Cyber-Physical Cloud Computing

Kungwalrut¹,

Kongratana²,

Trisuwannawat³

et al. 2018

IJIES

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Abstract:Optimized water management strategies are among the most crucial concerns in a biomass power plant. Especially during the times of water scarcity, an improper water supply planning and operation result in a detrimental power generation or shut down processes. This paper aims to propose the cyber-physical cloud computing (CPCC), a mechanism of analysis and control physical process using cloud-based framework, in order to improve the efficiency of water management system in a biomass power plant. In this study, a 9.9 MW biomass power plant is implemented to investigate the performance of CPCC. The architecture of the proposed system consists of three physical tiers. The first tier is a tier of physical devices included with pressure, flow, pH sensors, water pumps and valves that are responsible for detecting the physical data and interacting with the water production process. The second tier is an edge computing device which functions as a controller, embedded server, data storage, gateway and switch to manage all operational tasks in an intranet area. The third tier is a cloud computing system which enables big data applications such as online monitoring and visualization of process operation, adaptive filtration fouling control, consuming water and total water cost analysis. The results validate the effectiveness of the proposed system as the ability of an adaptive fouling control system to adjust backwash scheduling and chemical dosing so that achieving the target of purified water quality even during the fluctuation of raw water qualities. Subsequently, the water treatment system can achieve the capability for optimal total water cost operations under a target permeate flow rate and the percent of the recovery. Significantly, the data analytics in the CPCC reflect current operational requirements of water under local climate conditions, likewise contribute to the practical solution for sustainable water resource planning in the energy production.

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Section: Resultsmentioning

confidence: 99%

Improving the Efficiency of Water Management System in Biomass Power Plant Using Cyber-Physical Cloud Computing

Kungwalrut¹,

Kongratana²,

Trisuwannawat³

et al. 2018

IJIES

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“…The peak load would be high if a large number of GVs are connected to the electric grid randomly. Future developments should consider an integrated design approach to enhance the overall system autarky by collaborating resources planning and energy-water infrastructure synergies supported by policies and regulations (Gude, 2015). Saber and Venayagamoorthy (2011) concluded that the intelligent scheduling and control of GVs as loads and/or sources has great potential for evolving a sustainable integrated electricity and transportation infrastructure.…”

Section: 1029/2018ef001117mentioning

confidence: 99%

Research Development on Sustainable Urban Infrastructure From 1991 to 2017: A Bibliometric Analysis to Inform Future Innovations

Liu

et al. 2019

Earth's Future

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Studies of sustainable urban infrastructure are expanding since the United Nations proposed the concept of sustainability in 1982. The need for more sustainable urban infrastructures led to many research efforts on innovative technologies and development strategies. We analyzed research progress on sustainable urban infrastructure from 1991 to 2017 using bibliometric, keyword co-occurrence and document cocitation network analysis. An increasing publication number suggests a rapid development of the sustainable urban infrastructure research area, but the development is still in an emerging stage. With respect to the analysis of research themes, we analyzed keyword co-occurrence networks in the three stages of . We observed substantial expansions and intensive interconnections of research theme clusters on sustainable urban infrastructure. The themes from 2009 to 2017 include "critical infrastructure," "urban planning and design," "development need," "technology innovation," and "cyber-physical system." The United States produced 28.93% of the publications and played a core role in the international collaboration network. We further compared national interests among top productive countries, which highlights different priorities of investing more sustainable urban infrastructures. Finally, we presented an in-depth analysis of four emerging technology innovations, namely, renewable energy, smart grid, green infrastructure, and cloud computing regarding research directions and challenges. Our results not only provide a valuable reference for researchers who are interested in sustainable urban infrastructures but also put forward the emphasis and orientations of future studies.Plain Language Summary More than a half of world population are currently living in urban areas for decent work and high-quality services. How we develop cities and infrastructures affects resource needs, quality of life, and the impact of natural environment. Considering the increasing pressure from resource depletion, ecosystem degradation, and climate change, it is critical and urgent to foresee what future cities and infrastructures should be and the gaps we should overcome. Our study provided an overview for a broad audience to recognize the current research progress of sustainable urban infrastructure. Our study shows that this topic is still in an emerging stage with a steady growth of publications. The research themes have expanded dramatically to cover critical infrastructure, development need, technological innovation, urban planning design, and cyber-physical system. United States is currently leading this research area, but countries have their own interests in sustainable urban infrastructure depending on economic development. In the end, we provided an in-depth analysis about renewable energy, smart grid, green infrastructures, and cloud computing in terms of research themes and challenges. The testing and validation of these technologies will be required that can fulfill the complex needs of urban citizens in a sustainable and rel...

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“…It is estimated that by 2025, two-thirds of the world's population will be subjected to shortage of water (UNEP 2007), mainly due to water pollution (Conserve Energy Future 2014). One of the major challenges within several regions has become the provision of affordable drinking water sources and adequate waste water treatment (Gude 2015). For these reasons, WF evaluation and minimisation should be one of the priorities for sustainability.…”

Section: Water Footprintmentioning

confidence: 99%

Significance of environmental footprints for evaluating sustainability and security of development

Čuček

Klemeš

Kravanja

2015

Clean Techn Environ Policy

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This contribution presents the selected categories of environmental footprints related to the planetary boundaries and threats to human security. The analysis covers the footprint family of indicators that usually consists of ecological, carbon or more precisely greenhouse gas and water footprints and also sometimes the energy footprint. The other assessed footprints that are important for ecosystem health in regard to water, health, food, and land and species security are nitrogen, phosphorus, biodiversity and land footprints, which have already transgressed the planetary boundaries and are therefore outside the safe operating space. The importance of the various footprints is discussed and the simultaneous analysis of footprints is emphasised as a major direction of research and practice. The comprehensive set of environmental impacts, e.g. set of presented footprints in this contribution, should be considered and should incorporate the burdening and unburdening concept from the life cycle perspective. Some applications of the presented environmental footprints are offered, and conclusions and remarks provided for future observation.

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Energy and water autarky of wastewater treatment and power generation systems

Cited by 267 publications

References 55 publications

Improving the Efficiency of Water Management System in Biomass Power Plant Using Cyber-Physical Cloud Computing

Improving the Efficiency of Water Management System in Biomass Power Plant Using Cyber-Physical Cloud Computing

Research Development on Sustainable Urban Infrastructure From 1991 to 2017: A Bibliometric Analysis to Inform Future Innovations

Significance of environmental footprints for evaluating sustainability and security of development

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