scholarly journals Screening Tool for Energy Evaluation of Projects: A Reference Guide for Assessing Water Supply and Wastewater Treatment Systems

2021 ◽  
Keyword(s):  
Wastewater Treatment ◽  
Water Supply ◽  
Energy Use ◽  
Screening Tool ◽  
Water And Wastewater Treatment ◽  
Reference Guide ◽  
Energy Evaluation ◽  
Wastewater Systems ◽  
Use Efficiency ◽  
Wastewater Treatment Systems

The Screening Tool for Energy Evaluation of Projects (STEEP) is designed to help improve energy use efficiency in water and wastewater treatment systems. This publication provides a detailed overview of STEEP and guides users on how to apply it during energy use assessments of proposed or existing water supply and wastewater systems. Since 2017, STEEP has been under continuous development based on pilot assessments carried out in various projects financed by the Asian Development Bank. STEEP is available online and can be downloaded for free.

Municipal wastewater reclamation for non-potable reuse – environmental assessments based on pilot-plant studies and system modelling

2015 ◽  
Vol 72 (9) ◽  
pp. 1635-1643 ◽  
Author(s):  
Christian Baresel ◽  
Lena Dahlgren ◽  
Mats Almemark ◽  
Aleksandra Lazic
Keyword(s):  
Wastewater Treatment ◽  
Energy Use ◽  
Municipal Wastewater ◽  
Comprehensive Evaluation ◽  
Plant Size ◽  
Environmental Benefits ◽  
System Modelling ◽  
Wastewater Reclamation ◽  
Additional Energy ◽  
Wastewater Treatment Systems

Wastewater reclamation is an upcoming approach that will significantly affect wastewater treatment systems. Despite the fact that technology for treating wastewater to an effluent water quality that meets various quality standards for reuse is already available and applied, the reuse of water is not just a simple and straightforward road. Significant additional energy and civil infrastructure is required to treat the water to a standard that allows it to be safely reused. The total impact of treating and reusing water may be higher than the environmental benefits. Thus, it is crucial the life-cycle impacts from upstream and downstream processes of various reuse technologies, i.e. production of chemicals, energy use, eutrophication, sludge handling, etc. The present paper provides a comprehensive evaluation considering different reuse purposes, treatment technologies and plant size. The results of this study suggest that all these factors are highly significant for the environmental impact of wastewater treatment systems for non-potable applications.

Energy Evaluation of Kala Zeera (Bunium persicumBios.) cultivation under Gurez valley of Temperate Kashmir

2017 ◽  
Vol 4 (03) ◽  
Author(s):  
PARMEET SINGH ◽  
M. A. RATHE ◽  
R. H. KANTH ◽  
LAL SINGH ◽  
PURSHOTAM SINGH ◽  
...  
Keyword(s):  
Energy Balance ◽  
Energy Input ◽  
Energy Use ◽  
Energy Balance Equation ◽  
Energy Output ◽  
Agricultural System ◽  
Energy Use Efficiency ◽  
Energy Evaluation ◽  
Energy Consuming ◽  
Use Efficiency

Energy being the critical aspect of agricultural production, the modern agricultural system takes into account all the agricultural operations in terms of energy input and the yield obtained as energy output. It is this energy balance equation which describes the viability of a system. Depending upon the variation in energy consumption among various agro–climatic and environmental conditions and the output therein, a wide variation exists in the viability of these systems. In the present study, the energy balance in Kala zeera management system was taken into consideration. Data and information were collected and different energy use efficiency indices were calculated. Amon the production practices in Kala zeera cultivation, consumed root tubers for sowing were the most energy consuming input (43.32%) followed by diesel fuel (20.28 %) and Nitrogen (18.30). the total energy input could be classified in Kala zeera fields as direct ( 10.80%), indirect (25.60%), renewable (43.3%) and non-renewable (20.27%). Overall in view of sustainability,it is recommended that major input consumptive processes shall be optimized to increase energy use efficiency

scholarly journals “Who Cares?”: The Acceptance of Decentralized Wastewater Systems in Regions without Water Problems

2020 ◽  
Vol 17 (23) ◽  
pp. 9060
Author(s):  
Cristina Gómez-Román ◽  
Luisa Lima ◽  
Sergio Vila-Tojo ◽  
Andrea Correa-Chica ◽  
Juan Lema ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Environmental Sustainability ◽  
Critical Factor ◽  
Focus Group Study ◽  
Advantages And Disadvantages ◽  
Decentralized Wastewater Treatment ◽  
Wastewater Systems ◽  
Water Problems ◽  
Water Issues ◽  
Wastewater Treatment Systems

There is a growing interest in decentralized wastewater treatment systems, especially in regions with water scarcity problems or water management issues. This study aims to determine whether the perceived advantages and disadvantages (leading to acceptance) of decentralized wastewater plants in such regions are the same in regions where the population is not aware of these water issues. Firstly, this study systematically reviews previous findings on public perceptions of the acceptance of decentralized wastewater treatment systems. Then, the study details the results of a focus group study to determine whether the elements identified in the literature are also relevant in a region where people are unaware of water problems. The results show that a lack of awareness of water issues seems to be a critical factor influencing acceptance. Reframing the usefulness of these systems by focusing on other aspects, such as environmental sustainability, is key.

scholarly journals Consumption of Electrical Energy in Water Supply and Wastewater Systems in Brazil

2018 ◽  
Vol 1 (1) ◽  
pp. 51
Author(s):  
Renan Barroso Soares ◽  
Ricardo Franci Gonçalves
Keyword(s):  
Energy Consumption ◽  
Water Supply ◽  
Energy Use ◽  
Current System ◽  
Electrical Energy ◽  
Anthropogenic Sources ◽  
Water Abstraction ◽  
Treated Sewage ◽  
Wastewater Systems ◽  
Government Websites

<p><em>Traditional processes adopted in water supply and wastewater systems consume large amounts of energy and generate relevant environmental impacts, since energy use is considered one of the largest anthropogenic sources of greenhouse gases. The industry consumes 7% of all energy produced in the world, increasing the costs of operations that cannot be fully passed on to users, especially in developing countries such as Brazil. The worldwide projection of rising electricity prices further aggravates the situation, motivating a mapping of the energy efficiency of the sector in order to identify points of improvement. Several articles on the topic have already been published, but information for Brazil is scarce. This paper presents a review on the energy consumption in each stage of the water and wastewater sector, including the Brazilian scenario. Searches on the site www.sciencedirect.com, using as keywords wastewater, water, energy, consumption and Brazil and government websites resulted in 20 documents that compose this work. The objective of this work was to review the energy consumption in collective water supply and wastewater systems, from raw water abstraction to the final disposal of the treated sewage, by compiling information and adding data on the Brazilian scenario. In general, the current system is inefficient and require political integration in water and energy in order to overcome the challenges.</em></p>

Research needs for developing innovative water and wastewater treatment technologies

2000 ◽  
Vol 42 (12) ◽  
pp. 61-64 ◽  
Author(s):  
E.H. Bryan
Keyword(s):  
Wastewater Treatment ◽  
Economic Value ◽  
Environmental Problems ◽  
Design Parameters ◽  
Water And Wastewater Treatment ◽  
Technical Performance ◽  
Wastewater Systems ◽  
Treatment Technologies ◽  
Water And Wastewater ◽  
Life On Earth

Research aimed at solving important environmental problems at all scales ranging from global to individual will continue to be an essential part of the process by which sustainability of life on earth may be achieved. Solutions to environmental problems that relate to water are especially critical to this process and are likely to involve use of innovative technologies that emerge from research with sufficient promise to justify their development, a process that evaluates them at a scale that will yield engineering design parameters and confidence in their technical performance and economic value. Privatization of water and wastewater systems and mergers of equipment manufacturers may provide the economic bases needed for development of innovative water and wastewater treatment technologies in the 21st Century that have emerged from research in the 19th and 20th Centuries but have not as yet been fully developed or adopted.

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