Search results

The new campus of Tianjin University was designed, built and now operates following a green and sustainable concept. The campus’ eco-friendly water environment was formed by establishing a water recycling system. The campus is divided into three drainage sections based on the masterplan. Each drainage section adopts different methods of collecting, utilizing and discharging water according to specific conditions, aimed at achieving both high drainage capability and the efficient utilisation of rainwater. The campus was designed so runoff pollution is reduced through the utilisation of low-impact development methods, ensuring the quality of the recharge water. Through studying the fundamentals of treatment measures and models for simulating water quality, water circulation, constructed wetlands and pollution control of rain runoff, parameters for efficient water recycling could be mathematically forecast, ensuring that stakeholders can be continuously engaged in improving and preserving the water quality of landscaped water on campus. The overall system integrates a variety of measures being implemented into one cohesive entity, which contributes to establishing the sustainable and healthy water cycling system of the green campus.

Water is a very common word for every human and a very common element for every life on earth. But underneath a very common meaning, a critical element and path for life being and existence lay placidly. Through various interactions between human and water, the intrinsic perceptive meaning is developed and varied in different place and time. It can mean life or death, strength or weakness, rich or poor, peace or conflict, and rise or fall. And this perceptive intrinsic meaning can be captured in one mind or extended to or shared with many thoughts. Sharing or extending from one to many or from an individual to an assemblage represent the evolution and development in complexity of relationship or social structure and function among all associates through space and time.

In industrialised countries water service providers (WSPs) must provide an appropriate level of service with an acceptable performance at an acceptable cost to customers. In the UK a move towards sustainable development is now also a major goal for WSPs. However, the imposition of institutional systems and regulatory targets still encourage the adoption of less sustainable technologies or solutions by the water industry. It is within this context, that the Sustainable Water industry Asset Resource Decisions (SWARD) project has developed a set of decision support processes that allow WSPs to assess the relative sustainability of water/wastewater system asset development decisions. A Guidebook has been produced that takes the WSP and its stakeholders through the processes essential to incorporating sustainability in asset investment decision‐making. Several case studies that demonstrate the SWARD principles in application are included within the Guidebook, the experience of which is described in this paper.

Nowadays, sustainable, clean, inclusive, innovative, and smart mobility in addition to urban transformation is required to achieve sustainable development as a path to preserve the world for future concerns and improve quality of life at the present, even to be kept up with growing citizens' needs. Mobility as an infrastructure component plays fundamental roles in urban transformation, and economic development. In this chapter, and based on the 5^th wave theory, related theories, models, and concepts, modern, clean, and inclusive mobility founded on high future of 4th technologies (which is called 5th technologies), digitalization, smartness, sustainability, and CSR 2.0 strategies is declared as proper clean mobility technologies to create sustainable and smart cities. Such smart cities are able to deal with challenges made by rapid, unplanned urbanization and globalization to achieve sustainable development. In this research, roles of inclusive and smart mobility systems as path to create modern and sustainable urban areas to make the world more sustainable and livable for living are declared. Literature reviews, case studies, interviews, and questionaries are applied as main methods to recognize inclusive and modern mobility and its roles in urban transformation to achieve sustainable development. This chapter is based on know-how and do-how of the author Prof. Hamid Doost on sustainability such as cooperating with Danish Sustainable Platforms Company, working with Erasmus Plus as an academic leader in Germany since 2017, cooperating with Copenhagen's former mayor and researching on sustainability. In this chapter, impact of sustainable mobility, sustainable buildings, and smart cities on CSR 2.0 and social responsibility, how these parameters improve sustainable development and sustainability in social responsibility, corporate social responsibility (CSR), and how social responsibility could influence humanities are explored.

The purpose of this paper is to investigate design alternatives for pump‐included water distribution networks considering sustainability and reliability aspects. The aim is to demonstrate that CO₂ emissions could be reduced at a reasonable cost. The paper also investigates the trade‐offs between cost and reliability of water distribution networks.

An existing genetic algorithm optimization tool is customized in this research to perform multi‐objective optimization with various objectives and constraints. The developed model is demonstrated using a benchmark water distribution network.

The results from this research suggest that CO₂ emissions from water distribution networks could be reduced at a reasonable cost by choosing better objectives during the design stage. High system reliability could also be ensured for the lifetime by paying reasonable additional cost. This research presents various design alternatives for an engineer to choose from.

The design of water distribution networks is a computationally complex process and often requires significant CPU time to arrive at an optimal solution. This problem is significant in the case of larger networks, especially when all the failed states need to be simulated. Simpler measures of reliability could be adopted in the future.

Although a significant amount of research had been undertaken in the area of optimal water distribution network design, only limited research includes environmental impacts as a design objective. This paper not only includes environmental aspects but also considers reliability. The model proposed in this research is a useful tool for engineers for considering various alternatives before choosing the best design.

The purpose of this paper is to develop an investment valuation model using the mezzanine debt mechanism based on blue bonds that explicitly allude to public–private partnerships (P3s) and project finance (PF). Additionally, this study proposes the financial captured value (FCV) theory for measuring how much financial value lenders may capture by becoming sponsors through financing of sustainable infrastructure systems (SIS).

The investment valuation model was validated through the Aguas Claras wastewater treatment plant as a case study.

The empirical results show that lenders may capture financial value by converting outstanding debt into equity shares throughout the operation and maintenance stage. Furthermore, case study results provide new insights into the implications of the debt–equity conversion ratio on the relationship between the sponsors’ internal rate of return and the FCV.

The most significant limitation is the lack of primary and secondary information on blue bonds. Thus, robust statistical analyses to contrast results were not possible.

Researchers and practising professionals can improve their understanding of how mezzanine debt, P3s and PF into an investment valuation model allows financing SIS using a non-conventional financial mechanism. The recommendations will benefit both the academia as well infrastructure industry in bridging the gap between design theory and practice.

Sustainability components have not been addressed explicitly or combined in the financing’s structuring. Therefore, the investment valuation model could be considered a novel methodology for decision making related to financing and investment of SIS.

This paper aims to develop a framework to examine corporate water reporting (CWR) that considers the context in emerging economies and determine if and how companies are addressing the distinct water-related challenges and opportunities that they face in any given location.

This study combines a concise profile of the context of water resources management in Peru with a review of CWR guidelines and thematic content analysis of water information in sustainability reports for 34 companies operating in Peru. These data are then used to inform the development of a CWR typology via the use of a cluster analysis complemented by within-case and cross-case qualitative analysis of companies.

This study highlights the incomplete nature of most CWR practices of companies in Peru, with an emphasis on internal firm operations. Where companies do provide information on water risk and stakeholder engagement, there is insufficient detail to provide a clear picture of contributions to sustainable water management at the local level. The main drivers for CWR in Peru appear to be pressure from international markets, regulation and other normative issues.

The findings indicate that companies need to place more emphasis on the local context when reporting on water risks and activities, which could be achieved through the use of CWR frameworks that integrate both international and sectoral CWR guidelines, along with indicators related to good water governance, water, sanitation and hygiene service delivery and the sustainable development goals, as together they provide a more comprehensive reflection of the broader challenges and opportunities related to corporate water management.

This paper presents the first framework specifically developed to evaluate CWR practices with consideration of the context of an emerging economy.

The utilisation of renewable energy sources for generating electricity and potable water is one of the most sustainable approaches in the current scenario. Therefore, the current research aims to design and develop a novel co-generation system to address the electricity and potable water needs of rural areas.

The cogeneration system mainly consists of a solar parabolic dish concentrator (SPDC) system with a concentrated photo-voltaic module at the receiver for electricity generation. It is further integrated with a low-temperature thermal desalination (LTTD) system for generating potable water. Also, a novel corn cob filtration system is introduced for the pre-treatment to reduce the salt content in seawater before circulating it into the receiver of the SPDC system. The designed novel co-generation system has been numerically and experimentally tested to analyse the performance at Karaikal, U.T. of Puducherry, India.

Because of the pre-treatment with a corn cob, the scale formation in the pipes of the SPDC system is significantly reduced, which enhances the efficiency of the system. It is observed that the conductivity, pH and TDS of seawater are reduced significantly after the pre-treatment by the corncob filtration system. Also, the integrated system is capable of generating 6–8 litres of potable water per day.

The integration of the corncob filtration system reduced the scaling formation compared to the general circulation of water in the hoses. Also, the integrated SPDC and LTTD systems are comparatively economical to generate higher yields of clean water than solar stills.

In spite of the growing usage of “water security” as a policy template, the sustainable delivery of adequate quantity/quality of water remains a major challenge, specifically in the rural areas of developing countries. Focusing on the specific case of Nagpur (India), this study aims to establish a broader understanding of rural water security and (water supply) system sustainability issues at grassroots-level.

Taking due account of the existing assessment methods and the study context of Nagpur, contextualized indicator-based frameworks have been developed for conjointly assessing both the research subjects. Within the identified eight rural clusters (comprising 72 settlements), focus group discussions (with the residents) and semi-structured interviews [with the members of village water and sanitation committees) (VWSCs)] are then conducted to methodically investigate the local stakeholder perception.

Through the rural water security (state change) assessment in selected settlements, the water accessibility indicators are consistently reported to have witnessed mostly positive changes, whereas contrasting changes have been reported for various indicators of availability, quality and risks. Superimposing these findings with those of system sustainability assessment (e.g. only 56% VWSCs are reported to be actively functioning), it has been realized that the sustainability of water supply systems is imperative to attain water security goals in the long term.

Through the conjoint assessment of water security and system sustainability issues, this research responds to the growing call for a broader consideration of these concepts. Moreover, it reports practical ground-level challenges based on primary surveys.