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Journal of Applied Research in Water and Wastewater
Scopus
ISSN 2476-6283 · Razi University · 252 artikel di indeks
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PVP versus trimesic acid in PES membranes: A direct comparative study of morphology, permeability and antifouling response
This study presents a direct comparative and synergistic investigation of polyvinylpyrrolidone (PVP) and trimesic Acid (TMA) as additives for polyethersulfone (PES) membranes. Scanning electron microscopy (SEM) analysis revealed that PVP primarily acts as a pore-forming agent, while TMA induces a…
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Explaining evapotranspiration dynamics via CNN-LSTM and temporal SHAP: a multi-step forecasting approach across diverse climates
Reliable multi-step-ahead forecasting of reference evapotranspiration (ETo) is critical for proactive water resource management, yet understanding the temporal memory of hydrological systems remains a challenge for black-box deep learning models. This study presents a novel, interpretable…
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Transitioning from command-and-control measures to market-based mechanisms for sustainable groundwater governance in hyper-arid regions
Despite concerted efforts to stabilize groundwater levels in arid regions through engineering interventions, aquifer depletion remains a critical challenge, often exacerbated by a disconnect between rigid top-down policies and local socio-economic realities. This study presents a forensic…
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Advancements and applications of nanomembranes for sustainable wastewater treatment: A technical perspective
Providing safe and clean water for a rapidly growing population is a critical global challenge. Nanotechnology-based membranes, or nanomembranes, represent a promising pathway toward sustainable wastewater treatment. Their ultra-thin, highporosity structure can offer superior contaminant removal…
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Heterogeneous catalytic oxidation of ciprofloxacin over CuFe/Al₂O₃: Multi-variable optimization by Box Behnken design and kinetic interpretation
Ciprofloxacin (CIP), as a commonly used fluoroquinolone antibiotic, is frequently detected in pharmaceutical effluents and aquatic environments and poses significant microbiological hazards due to low biodegradability and high stability. In this study, heterogeneous catalytic oxidation of…
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Robust drought trend assessment using multi-index and dual-distribution frameworks in semi-arid climates
This study explores agricultural drought variability by applying both classical and rank-based statistical methods within two distinct probabilistic frameworks, aiming to assess how distribution choice affects the interpretation of drought patterns. Monthly meteorological data from 1998 to 2022…
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Pathogen removal from simulated hospital wastewater via plant-mediated Ag nanoparticles synthesized with Ferula assa-foetida extract
The present study outlines the production of AgNPs through a green synthesis method utilizing the water extract of Ferula assa-foetida leaves. In contrast to earlier studies that mainly focused on the plant's gum, this research used an ultrasonic-assisted extraction method for the leaf tissues…
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Comparing steady and unsteady hydraulic modeling for flood analysis with satellite imagery in Kermanshah
Floods rank among the most destructive natural disasters worldwide, with their frequency and intensity amplified by climate change. This study presents an integrated approach combining hydraulic modeling and multi-sensor satellite data to improve floodplain mapping accuracy during the April 3, 2019…
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Spatial distribution of indicator bacteria in Khersan-3 dam waters, Lordegan County, Southwestern Iran
The Khersan River, the largest tributary of the Karun River, is regulated by the Khersan-3 Dam, constructed for flood control, irrigation management, and hydropower generation. Despite its strategic importance, no comprehensive study has previously assessed microbial water quality in this…
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Scalable production of steam-activated wool carbon for highly efficient Cr(VI) adsorption
This study presents a sustainable approach for converting waste sheep wool into high-performance activated carbon for Cr(VI) removal from aqueous solutions. Chemical (NaOH) and steam activation routes were evaluated, and steam activation at 900 °C for 3 h in a rotary furnace produced the optimal…
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Trend analysis of River water quality: A case study on Gadar-Chai River
Water quality in rivers is a critical concern in hydrology. This study examines the Gadar-Chai River, situated within Iran's Urmia Lake basin, utilizing data from four selected hydrometric stations: Oshnavieh, Polebahramlu, Bighaleh, and Naghadeh. An improved Water Quality Index (ImpWQI) was…
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Experimental evaluation of discharge coefficient and performance of sloped and Non-sloped rectangular and trapezoidal piano key weirs
The discharge of sloped piano key weirs (PKWs) is proportionate to the upstream head, which allows for improving hydraulic performance under various conditions. This study experimentally investigates the discharge coefficient and hydraulic performance of sloped and non-sloped PKWs with rectangular…
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Comparing random forest flood frequency analysis with regional flood frequency, Creager and SCS in Doab-Qazanchi, Kermanshah
Due to climate change and rising global temperature, the occurrence of extreme floods and drought events has intensified. In this regard, in 2019, heavy rainfall occurred in Kermanshah province. The Gharasoo river runs through the city of Kermanshah in western Iran. The Doab-Qazanchi area is…
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Physical and numerical modeling for the investigation of downstream scour caused by sudden blockage in circular and box culvert inlets
This paper presents a comprehensive experimental and numerical study using non-cohesive uniform sand (d50 = 2 mm). The study investigates the impact of local scour downstream of four model culverts with different barrel shapes and inlet blockage sizes. The results show that, for clear water scour…
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Investigating the adsorption method using polymer nanocomposites as adsorbent to remove organic pollutants: A review
It is becoming increasingly evident that numerous nations are teetering on the edge of a crisis induced by environmental issues, posing threats to the well-being of both humans and animals. Diverse factors characterized by vivid hues, like air pollution and fluctuations in water quality, contribute…
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Ethical considerations in global climate and environmental business practices
Multinational corporations, seeking to reconcile economic goals with environmental stewardship, have found themselves at the center of an engaging academic discourse; one that has increasingly examined the role of ethical governance in promoting corporate environmental sustainability. This study…
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Green synthesis of Cu-doped TiO2 nanoparticles via Cannabis Sativa Leaves for efficient adsorption of cationic dyes from wastewater
In this study, 5 wt. %Cu-doped TiO₂ nanoparticles (NPs) were synthesized through a green and sustainable method, utilizing Cannabis sativa leaf extract as a reducing agent to promote eco-friendly wastewater treatment. The NPs were characterized using XRD, FESEM, BET, EDAX, and TEM, revealing…
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Overview of sugar distillery wastewater characteristics and the potential of nanomaterial adsorbents for treatment in Sindh, Pakistan
Distilleries produce substantial amounts of wastewater containing high concentrations of organic and inorganic pollutants, leading to serious environmental concerns. In Sindh, Pakistan, water resources are at risk owing to the inappropriate disposal of industrial distillery effluents, contaminating…
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Green synthesized TiO₂–P25/WO₃ photocatalyst for methylene blue degradation under sunlight in a spherical reactor
Nanostructured semiconductors have emerged as promising photocatalysts for sustainable wastewater purification. Among them, TiO₂–P25 (commercial TiO₂) is widely used; however, its wide band gap restricts visible light activity. A simple and eco friendly approach to overcome this limitation is the…
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Mercury removal from industrial wastewater using activated carbon synthesized from natural shells
The aim of this research was to separate mercury from gold refining wastewater using activated carbon (AC) from natural shells. To this end, walnut and coconut shells were used as the main source of AC. The characterizations of both ACs were compared by FTIR, BET, and SEM analyses. The FTIR results…