Water management as a vital factor for a sustainable school

EL-Nwsany, Rabab I.; Maarouf, Ibrahim; el-Aal, Waled Abd

doi:10.1016/j.aej.2018.12.012

Cited by 55 publications

(29 citation statements)

References 4 publications

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“…Therefore, the metacoupling framework is conducive to uncovering the complex interactions between water resources and environmental sustainability. In advancing the sustainable development of SNWTP-MR, joint actions can be taken to reduce costs, improve water quality, reduce pressure on water use and environment, promote social technological innovation and the implementation of the payments for watershed service plans, and enhance the complementarity of water resources [ 48 ].…”

Section: Discussion—the Impact Of the Metacoupling On The Sustainabil...mentioning

confidence: 99%

Metacoupling of Water Transfer: The Interaction of Ecological Environment in the Middle Route of China’s South-North Project

Chang

Chen

et al. 2022

IJERPH

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At present, nearly half of the population of China live in water-deficient areas where water needs to be transferred from surrounding or remote water sources to meet local water demands. Although the water transfer project has alleviated the demands for water in the water-deficient areas, and brought water-supply income to water source regions, it has also posed some cross-regional negative impacts, including the changes in the original ecology within the water source, the impacts on the downstream water demands, and the risk of biological invasion in the distant water receiving areas. Therefore, it can be seen that the impact of water transfer is complicated and will be manifested in various aspects. The Middle Route of China’s South–North Water Transfer Project (SNWTP-MR), as the world’s largest cross-watershed water transfer project, exerts particularly important effects on regional sustainable development; however, it also produces complex interactions within the ecological environment itself, downstream and in the distant water receiving cities. Thus, this work attempts to apply a metacoupling analysis framework of water transfer to explore the ecological interaction of water transfer in SNWTP-MR on each system. The metacoupling framework can be divided into intracoupling, pericoupling and telecoupling. This study focuses on the analysis of the causes and effects of the intracoupling, pericoupling and telecoupling of SNWTP-MR from the perspective of ecological values and ecological risks. We found that the coupling of water transfer brings about 23 billion yuan of ecological service value to the water source annually, but also increases the internal ecological risk index by 9.31%, through the calculation of changes in land use; secondly, the power generation benefit significantly increases, and the flood control standards have shifted from once-in-20 years to once-in-a-century. However, the ecological risks are also significant, such as poor water quality, eutrophication of water resources, competition for water between industry and agriculture, deterioration of waterway shipping, and threats to biodiversity, etc. Considering only water supply, the population carrying capacity of the water resource in distant water receiving cities is increased by 16.42 million people, which enhances the value of water resources and creates a cross-regional green ecological landscape belt. Nevertheless, the biological invasion and water pollution have greatly affected the safety of water supply. It can be seen that the cross-regional water transfer does not always damage the interests of the sending system and the spillover system while benefiting the receiving system; its impacts are complex and variable. Through this paper, it is hoped to provide a reference for the analysis of the ecological compensation, resource development and allocation in SNWTP-MR by revealing the metacoupling relationship of SNWTP-MR. This paper will provide new ideas for researching the metacoupling relationship, thereby offering valuable reference for the study of the interaction generated by large-scale water transfer.

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Section: Discussion—the Impact Of the Metacoupling On The Sustainabil...mentioning

confidence: 99%

Metacoupling of Water Transfer: The Interaction of Ecological Environment in the Middle Route of China’s South-North Project

Chang

Chen

et al. 2022

IJERPH

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“…The third phase of the research was characterized by actions that are the result of practices aiming sustainability which represented positive impacts for the school, the residence and the neighborhood of each person involved in this research. Some authors reinforce the importance of research focused on education for sustainability to achieve sustainable development (Jacobi, 2004;Netto et al, 2012;EL-Nwsany et al, 2019;Goldman et al, 2018).…”

Section: Phase Threeactionmentioning

confidence: 99%

Climate change education in school: knowledge, behavior and attitude

Rocha

Brandli

Kalil

2020

IJSHE

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Purpose The purpose of this paper is to present an experience of inclusion of the theme “climate change” in a Brazilian public school through training conducted with teachers. Design/methodology/approach The methodology was based on three specific phases: reflection, focusing on the application of a pretest with 45 questions directed to three domains (knowledge, attitude and behavior); climate change education (CCE) training; and application of a post-test and action, regarding the insertion in the school space. Findings The survey results highlight the difficulty teachers have in understanding and applying CCE in the classroom and it underscores the importance of this approach. Research limitations/implications The research approach is related to a specific case in a school located in south of Brazil. Although the school has its own context, the reported experience can be considered elsewhere. Practical implications This case study reinforces that CCE presents broad challenges for the scientific community. For the reason that the understanding of the topic (CCE) is complex, considering the global context and the divergent opinions on the subject. Social implications The paper reinforces that for today’s society, sustainable development is no longer a choice but a necessity, underpinned by global Agenda 2030 discussions. In this context, teachers are essential to the transformation toward a better future. Originality/value The difficulties and facilities encountered during the experience serve to enhance new actions at national or even global level, respecting each new context of study and insertion of research directed to the theme – CCE.

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“…Basicity gives a general idea of the amount of polynuclear material in the PAC. PAC is a highly efficient coagulant in a quite wide pH range (5)(6)(7)(8), even at low temperatures, with a low generation of waste sludge, compared to other more conventional coagulants (i.e., alum). Because of the capacity of PAC to perform well also at slightly alkali pH values [16], tests were carried out at the natural pH value of the wastewater, thus meaning without pH correction.…”

Section: Coagulation Jar Testsmentioning

confidence: 99%

Water Recovery from Floor Cleaning Operations of Industrial or Public Areas: The Results of a Field Test

Ruffino¹

2020

Resources

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Water resources are increasingly under pressure because of human activities and economic development. Moreover, accelerated urbanization and the expansion of drinking water supply and sanitation systems contribute to this rising demand. The development of water reuse solutions is an urgent issue. This study presents a solution for the reuse of wastewaters generated from floor cleaning operations of industrial or public areas. A portable device containing a grid, for coarse filtration, and a 300-L reaction chamber to carry out the sequential processes of coagulation, flocculation and settling, was employed for a field test. In the field test the wastewater coming from the tank of a cleaning machine, used for floor cleaning in an industrial site, was treated and reused for the same purpose for a total of 110 times. The quality of the treated wastewater was monitored cycle after cycle and the results of the test demonstrated that the treated water was suitable to be reused for the same purpose, even after a large number of cycles, provided that a finishing treatment was eventually supplemented in order to reduce the residual concentration of organic substances. It was demonstrated that, under standard operating conditions, that is a wastewater with a total suspended solid (TSS) content of 800 mg/L, and on the grounds of the results found in the test, that is a TSS removal efficiency of 98% and a sludge total solid (TS) content of 6%, the whole volume of the cleaning machine tank was completely renewed with fresh water after 60 cycles. Eventually, the combination of treatment and reuse operations allowed to save approximately 18,000 L of fresh water over a series of 60 cleaning cycles. The proposed treatment allowed not only to save fresh water but even to reduce the cost of water usage by approximately 50%. In fact, thanks to this treatment, the cost of a single cubic meter of water decreased from approximately 6 €/m3, which included supply of fresh water and discharge to the public sewer, to approximately 3 €/m3.

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Water management as a vital factor for a sustainable school

Cited by 55 publications

References 4 publications

Metacoupling of Water Transfer: The Interaction of Ecological Environment in the Middle Route of China’s South-North Project

Metacoupling of Water Transfer: The Interaction of Ecological Environment in the Middle Route of China’s South-North Project

Climate change education in school: knowledge, behavior and attitude

Water Recovery from Floor Cleaning Operations of Industrial or Public Areas: The Results of a Field Test

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