Applied Water Science

Abstract Per- and polyfluoroalkyl substances (PFASs) are recognized as “forever chemicals” highly stable compounds that exhibit remarkable resistance to conventional biological and physicochemical degradation processes, thereby posing a persistent threat to aquatic ecosystems and public health. In recent years, electrocoagulation (EC) has emerged as a promising technology for PFAS removal, levera…

Abstract In the current study transit time distributions (TTDs) and mixing ratios (MR) are determined and analyzed in the riverbank filtration (RBF) systems of two operating waterworks along the Danube River. Particle tracking method was used based on a calibrated and validated numerical groundwater flow model of both groundwater resources. TTDs and MRs are showing temporal variation and are high…

Abstract Three different mangrove tree densities (sparse, average, and dense) on a meandering compound channel floodplains were used to assess the effects of rigid trees on the conveyance capacity, streamwise velocity variation, and distribution at the main channel. The numerical simulations were carried out using a Computational fluid dynamics (CFD) model under non-vegetated (reference) and vege…

Abstract The experimental study investigates the effectiveness of four advanced oxidation processes (AOPs)—UV alone, UV/H₂O₂, photo-Fenton, and photo-Fenton-like—for enhancing the biodegradability of cosmetic and personal care products (PCP) wastewater from an Egyptian manufacturing facility. The processes were evaluated based on COD and TOC removal efficiency, biodegradability index (BOD₅/COD), …

Abstract Improving the operational effectiveness of water structures requires effective hydraulic design. Significant changes in water levels, velocity distribution, heading up, and energy loss occur at the entrance zone of these structures because of the interaction between the canal inside slope and upstream wing walls geometry. However, prior research has not adequately assessed the integrated…

This study examines the challenges associated with groundwater development in the study area, characterized by widespread abandoned drilling rigs and unsuccessful boreholes. Key issues include circulation loss, low yield, improper well completion, and geological complexities such as lignite, clay, and sandstone units within the Ogwashi-Asaba and Ameki Formation. Circulation loss, primarily occurr…

Abstract A novel eco-friendly filtration system was developed and evaluated for its efficiency in disinfecting and purifying raw drinking water. The system is based on combining biosynthesized silver nanoparticles–activated carbon in a single nanocomposite, (biosynthesized using olive leaf extract as a green reducing and stabilizing agent), applied in a specially designed filtration unit. The nan…

Abstract Reliable estimation of groundwater recharge is essential for sustainable water resource management, as it underpins assessments of water availability, wellhead protection, contaminant transport, groundwater–surface water interactions, urbanization impacts, and aquifer vulnerability—yet national-scale assessments are particularly challenging in geologically complex regions like Ethiopia. …

Abstract Sustainable drainage water reuse (DWR) in agriculture requires integrated assessment of water quality, soil dynamics, leaching requirements, and crop productivity. This study developed a novel multi-model framework integrating expert knowledge, multi-criteria decision analysis, hydraulic modeling (HEC-RAS), and soil–water-atmosphere-plant simulation (SWAP) to optimize operational strateg…

The stable isotopes of oxygen and deuterium are usually referred to as the “DNA” of water molecules because of their non-interaction with aquifer materials. These isotopes, when combined with the ionic content of water, become powerful tools to decipher the mixing between water masses of different salinities, thus enabling the tracing of water origin, determining the source of pollution and usabi…

The paper describes the purposes of the Kakhovka reservoir, which was the final in a series of large reservoirs created out of the Dnipro River in Ukraine. Importantly the paper presents the water consumption balances of the reservoir prior to its destruction on June 6, 2023. This consumption is divided up by economic sector—energy, agriculture, fishing, industry, transport, and household use and…

As the core element triggering urban waterlogging, disaster-causing rainfall is difficult to predict accurately due to its randomness and uncertainty. Identifying disaster-causing rainfall and clarifying its evolutionary characteristics and development patterns are of great significance for flood disaster reduction. The research takes the High-tech Zone of Zhengzhou City in China as the study are…