Trends In Water Management Research Articles

Environmentally safe biopolymer-clay composite for efficient adsorption of ciprofloxacin in fresh and saline solutions

In alignment with the sustainable development goals (SDGs), recent trends in water management have been directed toward using environmentally friendly bio-based materials for removing contaminants. In this work, we prepared a biocomposite of chitosan (CS) intercalated into acid activated calcium bentonite (Bent). A thermally stable mesoporous CS-Bent composite was prepared with a zeta potential of 15.5 to −34.4 mV in the pH range of 2.22–10. The biocomposite successfully removed up to 99.2% and 50 mg/g of the antibiotic ciprofloxacin HCl (CPX) at pH 5.5 via electrostatic and hydrogen bonding forces. In a multi-component aqueous system of heavy metal and CPX, the composite was more selective to CPX than to the heavy metals and removal of CPX in this system was comparable to that in a single-component system. The composite also maintained its high adsorption efficiency in NaCl solutions which makes it suitable for treating fresh and saline solutions. The combination of CS and bent produced a biodegradable eco-friendly composite characterized with good thermal and surface properties along with efficient and selective adsorption performance.

Bibliometric Analysis of Research Trends in Water Management Aimed at Increasing the Sustainability of the Socio-Economic Development of a Region

The growing negative anthropogenic impact on the environment causes scientific interest in the problems of water management. The increasing number of publications in this scientific field requires their intellectual systematization. The purpose of this study is to conduct a bibliometric review of scientific publications related to water management issues in the context of solving the problems of increasing the sustainability of the socio-economic development of a region for better understanding of current research trends. To achieve this goal, bibliometric analysis using the VOSviewer software product (Manual for VOSviewer version 1.6.17) was used. The international database Scopus was taken as the source of information. This study examined 10,208 articles on water management issues from 2012 to 2022. The basic criterion for including a publication in the selection was that the topic of the work belongs to the subject areas of economics, econometrics and finance and business, management and accounting. As a result of the analysis, it was determined that the problems of water resources management have not lost their popularity in the global research community and the research methodology is evolving towards the concept of “water–energy–food”. The centers of knowledge forming the vector of scientific research are the USA and the Netherlands; however, in recent years, the research of Chinese scientists has become increasingly important. It is concluded that the potential for the development of research in the field of water resources management in the context of solving the problems of the sustainable development of regions is associated with the search for opportunities for revealing the synergy of intersectoral interactions while taking into account their sectoral and regional specifics.

Perception of ecological aspects as part of flood protection

Modern trends in water management are more than ever inclined towards ecological solutions to avoid technical stream-channel regulation of riverbeds in the design of flood defence measures. Modifications to straighten the riverbeds that were considered in the past, removed the natural meanders of the river, increased the longitudinal slope of the riverbed, and accelerated the outflow from the threatened area. The goals of building protective dams and controlled floodplains are also limited by the negative perception of conservationists and ecologists, which leads to stagnation and discouragement from the proposals. The aim of this article is to compare the given perception of ecological aspects in different countries, how they approach them and how they are applied in studies of flood solutions. Among the ecological aspects, the following points of view will be observed: (1) options for regulation and design of flood areas, (2) duration of flooding time for the ecosystem or the landscape, (3) redefinition of riverfront in cities and (4) concept of resilience.

Analyzing and Assessing Dynamic Behavior of a Physical Supply and Demand System for Sustainable Water Management under a Semi-Arid Environment

The extensive interest in sustainable water management reflects the extent to which the global water landscape has changed in the past twenty years, which is a natural development of changes in water resources and an increase in the level of imbalance between water supply and demand. In this paper, a simulation model based on system dynamics (SD) methodology was developed to aid sustainable water management efforts in a semi-arid region. Six policy scenarios were used to study, analyze, and assess water management trends in the Southeast region of New Mexico, USA. The modeling process included two phases: calibration (2000–2015) and future prediction (2016–2050). Several statistical criteria were applied to assess the developed model performance. The findings revealed that the simulated outputs were in excellent agreement with the historical data, indicating accurate model simulation. The SD model’s determination coefficients ranged from 0.9288 to 0.9936 and the index of agreement values ranged from 0.9397 to 0.9958. Findings for the business-as-usual scenario indicated that total water withdrawals and total population will continue to rise, whereas groundwater storage, agricultural consumptive water use, and total consumptive water use will decrease over the simulated period. Sensitivity analysis using Monte Carlo simulation indicated that cultivated irrigated land change is the most influential parameter affecting groundwater storage, water supply storage change (total withdrawals), agricultural consumptive water use, and total consumptive water use. The changes occurring in the agricultural cultivated area had a great influence on controlling the groundwater system. Overall, the results showed that our SD model has been successful in capturing the system’s dynamic behavior, and confirmed its capability in modeling water management issues for policy and decision makers under semi-arid conditions.

ВОПРОСЫ УПРАВЛЕНИЯ ВОДНЫМИ РЕСУРСАМИ БАССЕЙНА РЕКИ ЛАМ ВО ВЬЕТНАМЕ

The purpose of the work is to analyze the problems and prospects of water management in the Lam River basin (Vietnam), as well as their impact on water use conditions in the provinces – Nge An and Ha Tinh. The analysis takes into account the development of irrigation, hydropower and the main trends in water management. The efficiency of water use in the Lam River basin was assessed, planning, management structure and sources of financing for water management were analyzed, as well as prospects for the development of hydropower and irrigated agriculture were considered. Up-to-date data has been collected, and the structure of water use for the river basin of the Lam River has been compiled. Recommendations on planning and management of water resources have been developed. The research applied a comprehensive integrated approach, the method of system analysis and the provisions of the concept of sustainable development, methods of expert assessments. The analysis of water use, taking into account the state of hydro-reclamation systems operation in the Lam River basin, showed that the operational capacity of irrigation facilities does not meet the requirements; water loss during irrigation is about 30%, in the household water supply losses are 25.5%. There is no master plan for the use of water sources; there is no plan and financing to replace old reservoirs and ponds for irrigation purposes. The survey of experts and the public also revealed the problem of insufficient accumulation and exchange of relevant information on the river. Management, operation and use, as well as planning of water resources in the Lam River basin have made positive changes, having a certain impact on the community. However, in order to successfully implement the transformation of water resources management from traditional to integrated, it is required that the communities in the basin overcome the shortcomings in the exploitation and use of water resources.

Long-term Water Regime Studies of a Degraded Floating Fen in Hungary

Historical trends in water management and recent climatic variations put wetlands in the Carpathian basin under strong pressure and led to their degradation. The lack of extended site specific environmental data series inhibits the understanding of long-term eco-hydrological processes. This undermines the success of restoration and/or management efforts. As a precedent we analyzed a recently degraded Hungarian lowland wetland, the Nyárjas fen in order to identify the main cause of its drying. Our method is based on one-dimensional simulations of a variably saturated soil column representing the dominant hydrological conditions of the wetland. To properly define the necessary soil hydraulic parameters, soil sampling, laboratory measurements and inverse modelling were carried out. The hydrological simulations for the 1961-2010 period clearly suggest that (i) the wetland degraded due to a temporal unfavorable combination of regional groundwater depletion and decreased precipitation, (ii) and could not recover afterwards despite the improvement of hydrological conditions. The ecological water demand of the Nyárjas fen can be explicitly expressed in terms of groundwater level. However, water availability is a necessary, but not sufficient criteria of good habitat status. The elaborated methodology provides the basis of bottom-up type environmental water demand estimation on a regional/national scale.

Technology Focus: Water Management (December 2019)

Technology Focus Recent trends in water management have taken a more-comprehensive and holistic approach toward the stewardship of water as a critical resource. The industry has broadened its view to address the complete life cycle of water, from the effect of water use, to the reuse or recycling of water, to the final disposal of•water. In unconventional reservoirs, the use of fresh water for fracturing fluids has been reduced greatly by the development of chemistries that facilitate the use of nonfreshwater sources and flowback fluids. In recent years, the participation of midstream water companies has changed the dynamics of water management, improving the processes by which water is conveyed and increasing the use of flowback or produced water. These companies are playing an increasing role in the infrastructure and operation of water management, sometimes owning and operating water pipelines and water-storage, produced-water-treatment, and produced-water disposal facilities.• Operators such as Southwestern Energy are taking a progressive approach in an effort to become freshwater-neutral, as outlined in paper SPE 187123.• This company, as an example, defines “freshwater-neutral” as a status in which the total water used is less than the sum of the alternative water and offsets. This company is using a combination of water-treatment technologies, aggressive water-reuse strategies, and conservation projects in local communities to achieve this goal. Technological advances have enabled a better understanding of the potential environmental impact of final disposal of produced water. This understanding derives from improved modeling and a deeper understanding of the relationship between water-disposal techniques and the environment, including the potential effect of injection wells on induced seismicity. Similarly, operators on the Norwegian Continental Shelf are using an environmental impact factor (EIF) to identify potential risks from specific produced-water discharges. The goal is to achieve an EIF known as “zero effects release.” The EIF can also be used to quantify the beneficial effects of different water-treatment methods. Recommended additional reading at OnePetro: www.onepetro.org. SPE 194575 A Case Study on Treating•Oil Contaminants and Heavy•Metal of Produced Water Through•Phytoremediation Using Reed-Bed Technology: A Success Story•of•15 Years of Operation of Heglig•Oil•Field•of Sudan by•Ajay Kumar, GNPOC Sudan, et al. SPE 191529 Fit-for-Purpose Water Treatment in Permian Shale—Field Data,•Laboratory Data, and Comprehensive•Overview by John Walsh,•CETCO Energy Services, et al. OMC 2019 1101 Analysis and Comparison•of Different Solutions for•Produced-Water Management—LCA•and Biodiversity Impact Assessment•by•Martino Pedullà, RINA•Consulting, et al.

Defining “water resilience”: Debates, concepts, approaches, and gaps

Resilience is increasingly applied the context of water systems, and water governance more broadly, in response to climate change impacts, hydrologic variability and uncertainty associated with various dimensions of global environmental change. However, the meanings, applications and implications of resilience as it relates to water governance are still poorly understood. Drawing on a systematic scoping review of the peer‐reviewed academic literature, this paper addresses the questions: how is resilience framed in relation to water systems and water governance, how are diverse resilience framings (re)shaping ideas and trends in water management, and what are the associated implications? The analysis found that the resilience‐informed water governance literature remains fragmented and predominantly centered on conventional approaches and framings of water planning, with a predominant focus on engineering resilience in water supply infrastructure. A recently emerging engagement with resilience in the water governance literature, however, draws on more diverse framings and theories and calls for a shift towards more integrative and ecologically‐centered thinking in water governance. Despite this, significant empirical and conceptual gaps remain, particularly around the integration of the various subsectors of water governance and, more importantly, around the institutional and governance dimensions of building water resilience.This article is categorized under: Engineering Water > Planning Water Human Water > Water Governance

Water for Cities in Nigeria: The Governance Dimension

This work assesses the state of water resources in Nigeria in the light of the global state of the affairs of water management. The study takes an in-depth survey of water availability globally on a regional per capita basis. The study further exposes contemporary trends in water management with particular focus on efforts at privatisation. The study goes further to expatiate the concept of water governance with a view to furnishing sound knowledge of the political, economic, social and administrative variables involved before it proceeds to assess the state of the affair in Nigeria, with the Niger Delta in perspective. The study concludes by drawing up the emerging issues in water governance in Nigeria for policy and practice. DOI: 10.5901/mjss.2013.v4n4p297

Integrating Water Management and Spatial Planning

A close connection is emerging between water management and spatial planning in the Netherlands as a result of a new acceptance of water on land, and the European Union's recent emphasis on managing water at the scale of entire river basins. We review Dutch and European trends in water management and identify four potential approaches to integrating water management and spatial planning in the Netherlands or elsewhere, depending on whether we adopt a regulatory or more strategic approach to planning, and whether we make water policy for areas defined by their water related functions (like watersheds or coastlines) or incorporate water issues into policy for broader socio cultural regions.

Assessment of availability and characteristics of Greywater in Amman

: The problem of water scarcity in Jordan has resulted in enormous pressures on the already limited renewable water sources. As a result, reuse of water is becoming an essential component of the water management trends being adopted. This study aims at evaluating the potential of greywater availability and the various components constituting sources of greywater generated in Amman, at investigating the different water quality parameters of the greywater in order to assess its reuse potential, and at gauging the public acceptance of greywater reuse for different applications. A survey was designed and administered in 38 areas of Amman. The survey covered a total of 233 houses and 1,514 people. Fifteen greywater samples, distributed equally, were collected and analyzed from showers, laundries, and sinks in some of these houses to determine their water quality parameters. The study concluded that per capita water consumption in Amman ranged between 51 and 115 liters per day, with an average of 84 liters per day. The quantities of greywater generated in Amman ranged from 39 to 80 Lpcd, with an average of 59 Lpcd, which constitute 70 percent of the total water consumption. Laundry, shower, and sink effluents comprised 16, 34, and 50 percent of greywater sources, respectively. The physical, chemical, and biological analyses of the grab samples revealed that greywater contains significant levels of suspended solids, inorganic constituents, chemical and biochemical oxygen demands, total Coliforms and Fecal Coliform bacteria. The public acceptance survey revealed that 21.6 to 67.6 percent of the public accepted the reuse of greywater for vegetable growing, irrigation of fruit trees, car washing, toilet flushing, or home laundry. Additionally, 2.0 to 91.8 percent of the public opposed greywater reuse due to cost, health hazards, groundwater pollution, or environmental impacts.

International Comparison of Trends in Water Resources Management, An

Current problems involving water use and efforts to develop a legal framework to cope with the rising demand for water are surveyed. A comparison is made of legal steps taken by several countries to encourage efficienct water use. Recent trends in water management are shown to be in the direction of conservation, recovery, and reuse and are associated with available technology. Centralization of water resource management allows the best mechanism for monitoring use and consolidating the administrative structure so that regulations are resource- rather than use-oriented. This will allow a smooth transition from the old wasteful water rights laws and make the transfer of water from one place or use to another less constrained. Pricing has been found to be an effective conservation tool for reducing water use, while effluent charges promote recovery and reuse.