Abstract Managed aquifer recharge is an effective method for utilizing excess flood flows, but clogging of porous media a limiting factor in the implementation this water storage technique. In recent years, much research on physical during artificial has been conducted. However, understanding due to silt‐sized suspended solids (SS) still inadequate, especially under varying conditions. Here, we subjected sand columns controlled rates flow and SS suspensions investigate influence size,...

Abstract Yinchuan Basin, a semi‐arid area located in Northwest China, is currently subject to increasing pressure from the altered hydrology due anthropogenic activities as well water demands for regional development. Sustainable management across region must be underpinned by clear understanding of factors that constrain supply this area. We measured stable isotope oxygen and hydrogen determine likely processes control interrelations among precipitation, surface (Yellow River), groundwater....

Managed aquifer recharge is an effective strategy for urban stormwater management. Chemical ions are normally retained in and groundwater may accelerate clogging during the process. However, effect of water chemistry on physical has not previously been investigated. In this study, we investigated hydrogeochemical mechanism saturated porous media a series column experiments. The was packed with river sand added suspensions kaolinite particles. Calcium chloride sodium used as representative to...

The implementation and development of managed aquifer recharge (MAR) have been limited by the clogging attributed to physical, chemical, biological reactions. In application field MAR, physical is usually dominant type. Although numerous studies on mechanism during MAR are available, more detailed suspended types its prediction methods still remain few. this study, a series column experiments were inducted show process solids process. was divided into three surface clogging, inner mixed...

Groundwater is subjected to contamination threats from human activities, such as agriculture, especially long-term farming in the Sanjiang Plain, China. Identifying sources and distribution of pollution essential for its reasonable prevention control. In this study, we analysed chemical characteristics 389 samples at 60 shallow groundwater monitoring points 2011 2015 Plain using traditional hydrochemical methods, water quality assessment, Pearson’s correlation, principal component analysis...

Managed aquifer recharge (MAR) can be used to increase storage and availability of groundwater resources, but water resources available for are constrained due a surface shortage. Alternative like stormwater, receiving increasing attention as sustainable reuse in MAR. However, pollutants stormwater impact quality, cause clogging the infiltration system. Based on data literature, physicochemical properties were analyzed. The results showed that concentrations from different underlying...

Because of the unique climate characteristics, runoff law in mid-temperate zone is very different from other regions spring. Accurate simulation and forecasting great importance to spring flood control efficient use water resources. Baishan reservoir located upper Second Songhua River Basin Northeast China, where snowmelt an important source that contributes supply. This study utilized long-term hydrometeorological data, contributing area Bashan reservoir, investigate factors time-lag...

Abstract Permeability reduction of infiltration media due to suspended solid (SS) clogging is the bane groundwater artificial recharge. To overcome problem and advance understanding process‐based spatial‐temporal evolution SS clogging, a 1D laboratory column simulation was carried out, followed by numerical modelling experimental data in this study. It found that caused hydraulic conductivity ( K ) upper layer at beginning extended deeper approximately 50 cm, no detected below 52 cm...

The Second Songhua River is the biggest river system in Jilin Province, China. In recent years, rapid economic development this area has increased prominence of water resources and water-related environmental problems; these include surface pollution overexploitation groundwater resources. Bank infiltration on floodplains an important process groundwater-surface exchange under exploitation conditions. Understanding can help resource management plans strategies for region. research, a...

This study aimed to examine the role of estrogen receptor (ER)-α36 in metastasis hepatocellular carcinoma (HCC) and epithelial-mesenchymal transition (EMT). HCC HepG2 Huh7 cells with knocked-down level ER-α36 expression were established. Cell growth migration cell variants studied using MTS, transwell, wound-healing assays, metastatic abilities examined a tail-vein injection model nude mice. Levels EMT markers, Src phosphorylation variants, tumors formed by mice Western blot...

In data-sparse areas, due to the lack of hydrogeological data, numerical groundwater models have some uncertainties. this paper, a nested model and multi-index calibration method are used improve reliability in region, Nalinggele River catchment Qaidam Basin. Referencing key study area, regional three-dimensional flow is developed relatively complete unit. A complex set indices, including fitting errors, dynamic trends, spring discharges, overflow zone location, budget status, proposed...

As one of the largest agricultural areas, Sanjiang Plain Northeast China has faced serious inorganic nitrogen pollution groundwater, but sources and formation mechanism in regional shallow groundwater remain unclear, which constrains progress control development planning. An investigation on potential sources, compounds (NH4+, NO3−, NO2−), topsoil total concentration (TN) was conducted a typical paddy irrigation area Plain. Multivariate statistical analysis combined with geospatial-based...

Sponge City is an integrated urban stormwater management approach and practice to tackle waterlogging, flooding, water scarcity, their related problems. Despite many positive effects of on flood control that have been investigated revealed, the effect aquifer recharge still less known. Considering maximizing function natural elements such as surface bodies subsurface storage space, minimize use a gray drainage system, design was proposed substitute planning development scheme in study area....

The severe global fresh water shortage, the over-exploitation of groundwater and its related ecological environment geology problems, climate change, all them are stimulating study practice artificial recharge. But clogging problem during recharge is always to be most common obstacle, it can reduce rate, increase maintenance cost shorten longevity facilities. present paper analyzed mechanism characteristics different types, introduced methods for control. Based on lots experiments, a new...

Ammonium is one of the main inorganic pollutants in groundwater, mainly due to agricultural, industrial and domestic pollution. Excessive ammonium can cause human health risks environmental consequences. Its temporal spatial distribution affected by factors such as meteorology, hydrology, hydrogeology land use type. Thus, a groundwater analysis based on limited sampling points produces large uncertainties. In this study, organic matter content, depth, clay thickness, total nitrogen content...

Storm water harvesting and storage has been employed for nearly a hundred years, using storm to recharge aquifers is one of the most important ways relieve scarcity in arid semi-arid regions. However, it cannot be widely adopted because clogging problems. The risk chemical mostly associated with iron oxyhydroxide precipitation; anhydrous ferric oxide (HFO) remains problem many wellfields. This paper investigates Fe(III) levels at three flow velocities (Darcy velocities, 0.46, 1.62 4.55 m/d)....