Reza Khalili

Shahid Beheshti University | SBU

Rivers are recognized as the most important water supply resources in various sectors, including agriculture water, drinking water and industrial water sectors. Over recent years, however, urban, industrial and agricultural sewage have mostly been discharged into rivers. Taking into account that rivers have a limited capacity for toleration of poll...

In this study, the carbohydrate polymer chitosan (CS) fibers were prepared successfully by a simple wet spinning process and subsequently coated by manganese iron layered double hydroxide (Mn-Fe LDH) through hydrothermal technique. The properties of the Mn-Fe LDH/CS composite were identified by various techniques such as FESEM, EDS, FT-IR, BET and...

In recent years, considering the incremental growth of population, agricultural and industrial activities, pollution of water has surged significantly. Most of the industries overlook environmental concerns, probably due to economic and cultural problems, leave their poisonous and chemical effluents in the surface water which pollutes both the wate...

Lack of water resources is one of the biggest and most difficult environmental issues that is increasing rapidly in Iran. Given the scarcity of water resources in the Haraz Basin, this paper develops a system dynamics (SD) model for water resources carrying capacity (WRCC) and analyzes the balance between water supply and demand. For analysis of th...

Background and Purpose: Surface water pollution has been recognized as a severe threat to human health and the environment in recent decades, underscoring the importance of investigating water quality conditions. Materials and Methods: This study aims to assess the water quality of the Tajan River employing the National Sanitation Foundation Water...

The quality of river water is of great importance due to the limited availability of freshwater resources and the increased demand for water in the drinking water, agriculture, and other sectors.Rivers are one of the sources of this water supply, which are exposed to indiscriminate discharge of industrial, agricultural and human wastewater without...

Article type: Research Article In this research, in order to select an appropriate model for predicting river flow in the Bashar River basin, data-driven models including multilayer perceptron artificial neural network and fuzzy neural network from the Sugeno fuzzy inference system were used using the clustering reduction method, and the analysis o...

Natural rivers are principal resources of water and energy. Design and operational management of natural rivers needs a complete knowledgement of mechanics of flow pattern and sediment transport. The complex three-dimensional flow characteristics in river bends reveals the necessity of using a three-dimensional numerical model.The numerical model u...

In this study, in order to manage the quality of the river, a structure with the objectives of minimizing the environmental protection costs and providing the river water quality standard according to the implementation aspects of the policies is presented. After identifying the polluting sources in the studied area and grouping them, a number of s...

1. Introduction Drought is considered a complex hazard, whose severity depends on the climate and weather conditions of each region. In fact, drought is caused by dry and unusual weather conditions, among other things, lead to a change in vegetation characteristics. Since this dangerous phenomenon is caused by the lack of rainfall for a long period...

This paper investigates the use of Analytical Hierarchy Process (AHP) and Geographic Information System (GIS) to find the best route for a pressurized water transmission line. When planning a water transfer project, it is essential to consider economic, environmental, social, and technical criteria. The decision-making process involves comparing va...

Water، one of the most important elements in the world, is known to be essential for the survival of living organisms and the health of water resources, especially surface water, is a key factor in determining the health and sustainability of aquatic ecosystems. Rivers are among the most important sources of surface water that have been severely af...

In recent years, the unprincipled increase in agricultural activities along rivers and the discharge of domestic sewage, agricultural and industrial effluents has caused a sharp decrease in the quality of surface water. Contaminated or exposed water sources can have a negative effect on the entire life cycle. In this research, the trend of water qu...

Introduction With the increase in world population, food and energy supply will be one of the most important challenges of human society. According to FAO estimates, the agricultural sector must increase its production by 60% to meet the needs of population growth by 2050. Also, according to the prediction of the International Energy Agency, energy...

Artificial intelligence has been noticed as a tool to better solve problems due to its many applications in various fields. Also, in recent years, this technology has been used in the field of water and wastewater treatment processes to model, optimize and provide solutions for strategic management to prevent water pollution, reduce available water...

Introduction : Pollution of rivers is one of the important issues related to the environment, which can directly and indirectly affect the health of people, animals and plants that feed on it . Also, rivers are always exposed to various pollutions as one of the fresh water supply sources. The decline in the quality of river water and other surface...

The ultimate goal of the present study is to design and investigate the bio-geo-filters for nitrate removal from the runoffs. This research uses alternate layers of non-woven geotextile and granular soil to reduce and remove pollution. These layers are of paramount importance in permeability and adsorption capability. Some points have been consider...

The network of electrospun nanofibers modified by layered double hydroxides (LDHs) still needs to be thoroughly investigated in the field of adsorption of toxic metal ions and dyes from its aqueous solution. In the present study, an innovative electrospun nanofiber membrane was fabricated, which was used to eliminate pollutants from water. Polyacry...

The increase of greenhouse gases and the resulting increase in temperature have caused the balance of the earth's climate system and climate changes in most areas of the earth. Therefore, adapting and dealing with climate changes in the water resources sector along with reducing their reflection should be seriously addressed as part of a comprehens...

Drought is one of the environmental hazards that can occur in all weather conditions, both wet and dry, and compared to other environmental hazards, it gradually leads to a natural disaster and conquers the environment. Today, we are witnessing the occurrence of drought in regions and regions that are located in temperate and humid regions in terms...

Drought is considered a complex hazard, whose severity depends on the climate and weather conditions of each region. In fact, drought is caused by dry and unusual weather conditions,among other things, lead to a change in vegetation characteristics.. since this dangerous phenomenon is caused by the lack of rainfall for a long period of time, it slo...

Due to the space and time limitations, measuring the flow of rivers, this task will face problems that in recent years, researchers have turned to designing hydrological models to check and estimate the flow of rivers. The existence of a tool to estimate discharge can lead to the best possible management of surface water and its optimal use. In add...

Side weirs are flow diverting structures that are widely used in irrigation and drainage industry, flood control, sanitary engineering and urban sewage systems. So far, the discharge coefficient in this type of overflows has been determined experimentally using regression techniques, and for this reason, in this research, linear regression models a...

بررسی کیفیت آب مخازن سدها به‌منظور تامین تقاضا منابع آب جهت کاربری‌های مختلف مانند: تامین آب شرب شهر و حق‌آبه کشاورزی در مدیریت منایع آب ضروری می‌باشد. هدف از این پژوهش پیش‌بینی پارامترهای کیفی سد کباتان همدان به تفکیک دوره گرم و سرد می‌باشد.در این مطالعه با تکیه بر توانمندی مدل‌های هوشمند عصبی از 4 مدل شبکه عصبی مصنوعی، عصبی-فازی، عصبی- موجک و عصب...

Climate change is one of the biggest challenges facing humanity that affects the sciences related to nature and environment. Changes in factors affecting climate change affect the hydrological responses of watersheds and this phenomenon affects the quantity and quality of water resources such as lakes, reservoirs and dams. Today, the development an...

Predicting changes in meteorological variables in the long run is of great importance in the study of climate change. The aim of this study is to provide a perspective of temperature and precipitation changes in the western and southwestern regions of Iran using climate-generating radiation induction scenarios LARS-WG and display the results in GIS...

1. Introduction The pollutants have exceeded the environmental load capacity of the water resources due to the rapid development and expansion of urban areas, increased industrial production, agricultural activities, and discharging of the domestic sewage into the surface water runoff in recent years. These point and non-point source pollutions hav...

1. Introduction River pollution is one of the serious risks to the environment, water systems, and human health. Regular monitoring and protection of river water quality is therefore vital to meet environment, and human needs. The increasing trend to fresh water highlights the management of river water resources as a crucial resource. Meanwhile, po...

Introduction The pollutants have exceeded the environmental load capacity of the water resources due to the rapid development and expansion of urban areas, increased industrial production, agricultural activities, and discharging of the domestic sewage into the surface water runoff in recent years. These point and non-point source pollutions have d...

Introduction: River pollution is one of the serious risks to the environment, water systems, and human health. Regular monitoring and protection of river water quality is therefore vital to meet environment, and human needs. The increasing trend to fresh water highlights the management of river water resources as a crucial resource. Meanwhile, popu...

There is an increasing demand and deficiency of water resources, accordingly, it is possible to solve this problem through reusing refined wastewater for various objectives. This study is conducted in order to feasibility study of reusing the wastewater of Hakimieh neighborhood treatment plant/refinery to be applied in different applications. Ac...

This book describes organic and metallic pollution and its effects on the environment

This study aims to calculate the probable maximum precipitation (PMP) and probable maximum flood (PMF)parameters. For this purpose, data length adequacy of historical precipitation data and data forecasted were analysed using the Long Ashton Research Station Weather Generator under Representative concentration pathway 8.5 and 4.5 scenarios in 2021-...

This study aims to calculate the probable maximum precipitation (PMP) and probable maximum flood (PMF)parameters. For this purpose, data length adequacy of historical precipitation data and data forecasted were analysed using the Long Ashton Research Station Weather Generator under Representative concentration pathway 8.5 and 4.5 scenarios in 2021-...

Water quality index is an essential part of the water resources management system that is used as a numerical scale for evaluating and classifying water quality for various uses. The present study focuses on the application of the Canadian Water Quality Index (CCME WQI) to assess the water quality of the Bashar River for drinking, agricultural, aqu...

Rivers are recognized as the most important water supply resources in various sectors, including agriculture water, drinking water, and industrial water. Over recent years, however, urban, industrial, and agricultural sewage have mostly been discharged into rivers. Taking into account that rivers have a limited capacity for toleration of pollutants...

One of the serious dangers to the environment, water systems and human health is heavy metals that can last a long time in water systems and enter the human body through water consumption, inhalation and skin. Therefore, the present study was conducted to evaluate the heavy metal pollution of Bashar River in Yasuj and the impact of various urban an...

Flooding is one of the most catastrophic natural disasters that many steps are being taken today to predict and properly manage it. In flood control and management studies, generally prediction of parameters such as probable Maximum Precipitation (PMP) and probable Maximum Flood (PMF) is one of the main issues to manage and encounter the floods. Du...

Water quality index is an essential part of the water resources management system that is used as a numerical scale for evaluating and classifying water quality for various uses. The present study focuses on the application of the Canadian Water Quality Index (CCME WQI) to assess the water quality of the Bashar River for drinking, agricultural, aqu...

یکی از خطرات جدی برای محیط زیست،سیستم های آبی وسلامت انسان فلزات سنگین می باشد که می توانند به مدت طولانی در سیستم های آبی دوام داشته و از طریق مصرف آب ،استنشاق و پوست وارد بدن انسان می شود. بنابراین ، مطالعه حاضر با هدف ارزیابی آلودگی فلزات سنگین رودخانه بشار در شهر یاسوج و تاثیر فعالیت های مختلف شهری و صنعتی بر کیفیت آب این رودخانه انجام شد. نمون...

One of the most important problems of the plains in water management, decision making, and environmental and agricultural-related planning sectors is water balance, which is investigated due to high inputs and outputs, uncertainties, and complexities caused by calculations in estimation of some parameters in nature. The investigation of runoff, rai...

در سالهای اخیر با توجه به افزایش نرخ رشد جمعیت و توسعههای اقتصادی تقاضا برای بهرهبرداری و مصارف منابع آب بهشدت افزایشیافته و در بسیاری شهرها باعث به وجود آمدن کمآبی شده است. بر همین اساس در این پژوهش به بررسی چگونگی حل این مشکل پرداخته شد. در مرحله اول با توجه به اثر پویای زمانبر عرضه و تقاضای منابع آب توسط دو فاکتور درجه بهرهبرداری منابع آب و قابل...

Choosing a good hydrology model that has a simplistic structure, needs minimum input data, and is able to provide a fine prediction with high accuracy seems to be essential. Among all these models, the IHACRES model has a better efficiency comparing to its peers duo to requiring less input data, and is simply used in many catchment areas. In this s...

Due to the scarcity of water resources and increasing demand, the reuse of refined effluent for a variety of purposes can be a good way to encounter lack of water. Industrial refined effluent, which meets the required standards, can be an appropriate, available and rich option for a variety of uses, including agricultural and irrigation use of gree...

Predicting flood occurrence and flood volume is an important safety requirement for different areas, especially rainy areas, which will lead to a lot of damage. Therefore, in order to prevent rising water levels, reduce the effects of floods and deal with potential risks Proper management and forecasting of parameters such as maximum possible preci...