Water resource R&amp;D efficiency in Korea – toward sustainable integrated water resources management

Cho, Inkyung; Heo, Eunnyeong; Park, Jungkyu

doi:10.2166/wp.2021.227

Cited by 8 publications

(4 citation statements)

References 47 publications

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“…Treating wastewater can minimize pollution, protect ecosystems, and conserve water resources for present and future generations. It promotes the efficient use of water resources, reduces environmental impacts, and supports social and economic development in a sustainable manner [14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Wastewater Treatment Utilizing Industrial Waste Fly Ash as a Low-Cost Adsorbent for Heavy Metal Removal: Literature Review

Jadaa

2024

Clean Technol.

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Wastewater discharges from industrial processes typically include elevated concentrations of contaminants, which largely consist of potentially harmful chemicals such as heavy metals. These contaminants are characterized by their slow rate of decomposition. Hence, the removal of these metallic ions from effluents poses a challenge. Among different treatments, the adsorption approach has considerable potential due to its ability to effectively eliminate both soluble and insoluble pollutants from effluent, even at lower levels of concentration. Of various wastes, fly ash (FA) material has been the subject of attention because it is abundant, has favorable qualities, and contains a high percentage of minerals. This review investigates multiple facets, with a specific focus on the application of FA, an industrial byproduct, as an adsorbent in removing heavy metals. A comprehensive examination was conducted on a range of concerns pertaining to the pollution caused by metallic ions, including the underlying causes, levels of contamination, health implications of heavy metals, and removal methods. Multiple factors were found to affect the adsorption process. Of all the factors, the pH value considerably influences the elimination of heavy metals. An acidic pH range of 2.5–4.5 was found to be optimal for achieving the highest possible elimination of As(V), Cu(II), Hg(II), and Cr(VI). The latter elimination rate reached 89% at the optimal pH level. Most heavy metals’ adsorption isotherms conformed to the Langmuir or Freundlich models, while the pseudo-second-order kinetics provided a satisfactory match for their removal. Using a raw FA, adsorption capacities were achieved in the removal of metallic ions, Ni(II), Pb(II), and Cr(VI), that ranged from 14.0 to 23.9 mg g−1. Meanwhile, the FA-zeolite showed a remarkable capacity to adsorb ions Mn(II), Ni(II), Cd(II), Cu(II), and Pb(II), with values ranging from about 31 to 66 mg g−1. The cost analysis showed that the treatment of FA is economically advantageous and may result in significant cost reductions in comparison to commercial adsorbents. In summary, FA is an inexpensive waste material with potential for water treatment applications and several other purposes due to its excellent chemical and mineralogical composition.

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Section: Introductionmentioning

confidence: 99%

Wastewater Treatment Utilizing Industrial Waste Fly Ash as a Low-Cost Adsorbent for Heavy Metal Removal: Literature Review

Jadaa

2024

Clean Technol.

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“…The super-efficiency DEA model [17], three-stage DEA model [18], slacks-based measure (SBM) model [19], undesirable output super efficiency slacks-based measure (SE-SBM) model [20], network DEA model [21], and other various DEA improvement methods have been developed. In the spatial dimension, WRUE has been measured at the urban [22], provincial [23,24], basin [19,25], and national [21,26] levels. Scholars have evaluated WRUE in different water use sectors of agriculture, industry, the domestic sphere, and ecology.…”

Section: Introductionmentioning

confidence: 99%

A Comparative Study of the Driving Factors of Water Resources Use Efficiency in China’s Agricultural and Industrial Sectors

Li,

Huang,

Zhou

et al. 2024

Water

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The efficient use of water resources has become an important topic in China. Research on measurement and driving factors is the foundation for improving water resources use efficiency (WRUE). In this paper, the super-efficiency slacks-based measure (SE-SBM) model is used to measure the WRUE of China from 2005 to 2021. The agricultural carbon emissions and chemical oxygen demand (COD) in industrial wastes are taken as undesirable by-products. The driving factors of WRUE are discussed with use of the Tobit regression model. The results show that China’s agricultural WRUE ranges from 1.185 in Jilin to 0.687 in Ningxia. In the industrial sector, the WRUE ranges from 1.399 in Beijing to Jiangxi 0.212. The economic structure and development level, water resources endowment, government influence and environmental regulation, agricultural planting scale and urbanization rate have impacts on WRUE. Precautionary measures need to be applied to prevent inefficient WRUE caused by the declining share of the industrial sector in the economic structure. More financial support should be focused on water-saving irrigation in agriculture and energy and resource efficiency in industry. The organizational structure and technological advantages of urbanization should also be emphasized in efforts to improve water efficiency.

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“…Water as an essential resource for environmental and socio-economic progress, is under growing strain by population increase and economic expansion, unequal allocation of land, and climate change [1]. In addition, water is an essential component in manufacturing processes, and expenditures on water research and development raise the water technology standard, directly and indirectly contributing to the expansion of national growth [2,3]. Around 4 billion of humanity endures to live in extreme conditions of water deprivation at present at least one month a year [4].…”

Section: Introductionmentioning

confidence: 99%

Strategic Implementation of Integrated Water Resource Management in Selected Areas of Palawan: SWOT-AHP Method

2023

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In the recent past, Integrated Water Resource Management (IWRM) has emerged as the method of choice for resolving a wide range of water-related conflicts that arise between governments and stakeholders all over the globe. Despite a variety of regulations and initiatives being put into place, there is still skepticism over their actual execution. In 2006, the Philippine government began updating the water policy and regulatory framework to promote IWRM as a foundation for sustainable development. However, implementation of this national and subnational structure is still in process. This study intends to identify and rank the key elements likely to affect IWRM changes at the subnational level in Palawan Province. Specifically, this study aims to identify the elements that might improve the result of adopting IWRM, which is as important as designing policies, institutions, and instruments for putting the approach into action. This approach combined the Strengths, Weaknesses, Opportunities, and Threats (SWOT) and Analytic Hierarchy Process (AHP) techniques, a hybrid multi-criteria decision procedure, SWOT-AHP. Expert group discussion revealed the essential elements impacting IWRM implementation in this research, and these elements were categorized into SWOT categories. The AHP approach was used to determine the relative relevance of each component identified in the SWOT analysis. The results show that the following ranking groups have a higher priority for Puerto Princesa: threats (group weight 48.8%), strengths (35.4%), weaknesses (10.7%), and opportunities (5.1%). The ranking group for Roxas is the following: opportunities (36.8%), strengths (27.4%), weaknesses (21.5%), and threats (14.3%). Taytay has the following ranking group: opportunities (27.9%), weaknesses (27.1%), threats (24.7%), and strengths (20.3%). While El Nido has the following ranking group: strengths (33.5%), weaknesses (24.3%), opportunities (24%), and threats (18.2%). This research identified and prioritized the key components essential to the effectiveness of the IWRM concept in the research sites. This study recommends evaluating IWRM implementation using the upgraded element framework, enhancing the strategic framework to assess state, federal, and local IWRM governance performance.

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Water resource R&D efficiency in Korea – toward sustainable integrated water resources management

Cited by 8 publications

References 47 publications

Wastewater Treatment Utilizing Industrial Waste Fly Ash as a Low-Cost Adsorbent for Heavy Metal Removal: Literature Review

Wastewater Treatment Utilizing Industrial Waste Fly Ash as a Low-Cost Adsorbent for Heavy Metal Removal: Literature Review

A Comparative Study of the Driving Factors of Water Resources Use Efficiency in China’s Agricultural and Industrial Sectors

Strategic Implementation of Integrated Water Resource Management in Selected Areas of Palawan: SWOT-AHP Method

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