PubAg

Main content area

You searched for: Subject "hydrochemistry" Remove constraint Subject: "hydrochemistry"
Start Over

Search

3,844  Search Results

« Previous | 1 - 20 of 3,844 |
Number of results to display per page

Search Results

1. Assessing External Water Exchange of Lake Bays by Water Chemistry Characteristics

Author:
Lozovik, P. A.; Zobkov, M. B.; Borodulina, G. S.; Tokarev, I. V.
Source:
Water resources 2019 v.46 no.1 pp. 94-102
ISSN:
0097-8078
Subject:
hydrochemistry,   etc   ; lakes; seasonal variation;     Show all 3 Subjects
Abstract:
... External water exchange of bays of the lakes Onega (Kondopoga and Petrozavodsk bays) and Ladoga (Hiidenselkä Bay), considering the exchange with the lake water, was assessed by water chemistry of the bays and inflowing waters, as well as by the volume of water inflow into the bays. The periods of water exchange were found to be 0.13 for Petrozavodsk Bay, 1.02 for Kondopoga Bay, and 1.15 year for H ...
DOI:
10.1134/S0097807818050123

2. Water-saving strategies in the mining industry – The potential of mineral processing simulators as a tool for their implementation

Author:
Michaux, B.; Hannula, J.; Rudolph, M.; Reuter, M.A.; van den Boogaart, K.G.; Möckel, R.; Kobylin, P.; Hultgren, M.; Peltomäki, M.; Roine, A.; Remes, A.
Source:
Journal of environmental management 2019 v.234 pp. 546-553
ISSN:
0301-4797
Subject:
hydrochemistry,   etc   ; case studies; freshwater; mining; water conservation;     Show all 5 Subjects
Abstract:
... As the mining industry is facing an increasing number of issues related to its fresh water consumption, water-saving strategies are progressively being implemented in the mineral processing plants, often leading to variations in the process water chemistry. However, the impact of water chemistry variations on the process performance is rarely known beforehand, thus creating an obstacle to the impl ...
DOI:
10.1016/j.jenvman.2018.11.139

3. Long-Term Dynamics of the Ionic Runoff in the Amur during Winter Low-Water Season at Khabarovsk and Trends in Its Variations

Author:
Shesterkina, N. M.; Shesterkin, V. P.
Source:
Water resources 2019 v.46 no.2 pp. 258-265
ISSN:
0097-8078
Subject:
hydrochemistry,   etc   ; floods; mineralization; runoff; water power; winter;     Show all 6 Subjects
Abstract:
... Long-term dynamics of the ionic runoff into the Amur at Khabarovsk during winter low-water season are analyzed. A hydrological and hydrochemical characteristic is given to the major tributaries. The distribution of mineralization along and across the Amur is shown to be heterogeneous. Large floods are shown to have an effect on the winter runoff of dissolved substances. The ionic runoff during win ...
DOI:
10.1134/S0097807819020155

4. Correction to: Trend estimation for complex survey designs of water chemistry indicators from Sierra Nevada Lakes

Author:
Starcevich, L. A. H.; McDonald, T.; Chung-MacCoubrey, A.; Heard, A.; Nesmith, J.; Philippi, T.
Source:
Environmental monitoring and assessment 2018 v.190 no.11 pp. 664
ISSN:
0167-6369
Subject:
hydrochemistry,   etc   ; equations; lakes; mountains; surveys;     Show all 5 Subjects
Abstract:
... The original version of this article contained a misaligned equation. The following equation replaces the online printed on the 5th page of the article. ...
DOI:
10.1007/s10661-018-7018-3

5. Groundwater chemistry and the Gibbs Diagram

Author:
Marandi, Andres; Shand, Paul
Source:
Applied geochemistry 2018 v.97 pp. 209-212
ISSN:
0883-2927
Subject:
hydrochemistry,   etc   ; geochemistry; groundwater; surface water;     Show all 4 Subjects
Abstract:
... The ‘Gibbs Diagram’ represents some of the key processes controlling surface water chemistry. This review highlights that the processes listed on the Gibbs Diagram may not be applicable for assessing processes controlling groundwater chemistry. We discuss the importance of geochemical processes governing groundwater chemistry in the Gibbs Diagram framework. We show that the processes represented o ...
DOI:
10.1016/j.apgeochem.2018.07.009

6. Determination of nanoparticle heteroaggregation attachment efficiencies and rates in presence of natural organic matter monomers. Monte Carlo modelling

Author:
Clavier, Arnaud; Praetorius, Antonia; Stoll, Serge
Source:
The Science of the total environment 2019 v.650 pp. 530-540
ISSN:
0048-9697
Subject:
hydrochemistry,   etc   ; Monte Carlo method; coatings; fulvic acids; models; nanoparticles;     Show all 6 Subjects
Abstract:
... Understanding the transformation and transport of manufactured nanoparticles (NPs) in aquatic systems remains an important issue due to their potential hazard. Once released in aquatic systems, NPs will interact with natural compounds such as suspended inorganic particles and/or natural organic matter (NOM) and heteroaggregation will control their ultimate fate. Unfortunately, systematic experimen ...
DOI:
10.1016/j.scitotenv.2018.09.017

7. Correction to: Natural occurrence of potentially harmful fluoride contamination in groundwater: an example from Nakuru County, Kenyan Rift Valley

Author:
Gevera, Patrick; Mouri, Hassina
Source:
Environmental earth sciences 2018 v.77 no.19 pp. 687
ISSN:
1866-6280
Subject:
hydrochemistry,   etc   ; fluorides; groundwater contamination; statistical analysis; Kenya;     Show all 5 Subjects
Abstract:
... Author would like to make corrections in the original publication. ...
DOI:
10.1007/s12665-018-7875-7

8. Assessing the Degree of Water Compliance with Standards

Author:
Rozental’, O.M.; Aleksandrovskaya, L.N.
Source:
Water resources 2018 v.45 no.3 pp. 379-387
ISSN:
0097-8078
Subject:
hydrochemistry,   etc   ; compliance; models; pollution; risk; water management;     Show all 6 Subjects
Abstract:
... Water chemistry and properties vary within the boundaries of each quality (pollution) class; its rating within a class is best expressed in the domain of nominal values in the appropriate interval and worse expressed near its boundaries. Methods for evaluating such inconstancy were proposed under models of Taguchi (within an allowable interval) and Harrington (in a wider domain). This is shown to ...
DOI:
10.1134/S0097807818030132

9. Genesis of giant sinkholes and caves in the quartz sandstone of Sarisariñama tepui, Venezuela

Author:
Sauro, Francesco; Mecchia, Marco; Piccini, Leonardo; De Waele, Jo; Carbone, Cristina; Columbu, Andrea; Pisani, Luca; Vergara, Freddy
Source:
Geomorphology 2019 v.342 pp. 223-238
ISSN:
0169-555X
Subject:
hydrochemistry,   etc   ; caves; clay; iron; iron hydroxides; kaolinite; pH; quartz; sand; sandstone; surface water; tectonics; weathering; Venezuela;     Show all 14 Subjects
Abstract:
... Quartz sandstone of the Sarisariñama massif in Venezuela hosts the world biggest collapse dolines in quartz-rich lithologies, with volumes up to some millions of cubic meters. Due to extremely complex logistics required to reach the massif, the genesis of these depressions and of the underlying caves has never been studied in detail. The lack of field campaigns and extended data has fostered a dec ...
DOI:
10.1016/j.geomorph.2019.06.017

10. One river, two streams: chemical and chromium isotopic features of the Neglinka River (Karelia, northwest Russia)

Author:
Andronikov, A. V.; Novak, M.; Borodulina, G. S.; Efremenko, N. A.; Andronikova, I. E.; Chesalina, G. L.; Levichev, M. A.; Subetto, D. A.; Sebek, O.; Zobkova, M. V.
Source:
Hydrological sciences journal 2019 v.64 no.8 pp. 974-982
ISSN:
2150-3435
Subject:
hydrochemistry,   etc   ; basins; chemical composition; chromium; mineralization; rivers; runoff; streams; water hardness; watersheds; weathering; Russia;     Show all 12 Subjects
Abstract:
... The physico-chemical and hydrochemical characteristics of run-off of the Neglinka River Basin (northwest Russia) monitored for a year are different for the upstream and downstream sections. The river known hydrologically as the Neglinka, consists hydrochemically of two different streams: one represented by the upstream part of the basin, and the other one by the downstream. The upstream water is c ...
DOI:
10.1080/02626667.2019.1617418

11. The impact of supraglacial debris on proglacial runoff and water chemistry

Author:
Fyffe, C.L.; B.W.Brock,; Kirkbride, M.P.; Black, A.R.; Smiraglia, C.; Diolaiuti, G.
Source:
Journal of hydrology 2019
ISSN:
0022-1694
Subject:
hydrochemistry,   etc   ; asymmetry; glaciers; hydrograph; hysteresis; melting; models; runoff; sediments; streams; topography; weather; Alps region; Italy;     Show all 14 Subjects
Abstract:
... Debris is known to influence the ablation, topography and hydrological systems of glaciers. This paper determines for the first time how these influences impact on bulk water routing and the proglacial runoff signal, using analyses of supraglacial and proglacial water chemistry and proglacial discharge at Miage Glacier, Italian Alps. Debris does influence the supraglacial water chemistry, but the ...
DOI:
10.1016/j.jhydrol.2019.06.023

12. Hydrogeological characteristics of the Omaruru Delta Aquifer System in Namibia

Author:
Matengu, Brian; Xu, Yongxin; Tordiffe, Eric
Source:
Hydrogeology journal 2019 v.27 no.3 pp. 857-883
ISSN:
1431-2174
Subject:
hydrochemistry,   etc   ; aquifers; bedrock; geometry; geomorphology; groundwater; groundwater recharge; sediments; sodium chloride; surveys; watersheds; Namibia;     Show all 12 Subjects
Abstract:
... Sustainable utilization of groundwater in parts of hyper-arid Sub-Saharan Africa, like the Namib Desert, is always a challenge due to lack of resources and data. For the Omdel Aquifer in the Omaruru catchment, Namibia, issues to investigate include the lack of information on the geology and hydrogeological setting, the hydraulic properties and geometry of the aquifer at the inflow and outflow sect ...
DOI:
10.1007/s10040-018-1913-0

13. Investigation of Modified Water Chemistry for Improved Oil Recovery: Application of DLVO Theory and Surface Complexation Model

Author:
Sanaei, Alireza; Tavassoli, Shayan; Sepehrnoori, Kamy
Source:
Colloids and surfaces 2019
ISSN:
0927-7757
Subject:
hydrochemistry,   etc   ; adverse effects; calcite; carbonates; contact angle; equations; models; oils; salinity; wettability; zeta potential;     Show all 11 Subjects
Abstract:
... It is widely accepted that oil recovery during waterflooding can be improved by modifying the composition of the injected brine. A typical approach is diluting the formation water to a specific lower salinity. However, recent experimental studies report the adverse effect of formation water dilution on oil recovery for specific oil/brine/rock systems. The adverse effect depends on the interactions ...
DOI:
10.1016/j.colsurfa.2019.04.075

14. The effects of litter quality and living plants on the home-field advantage of aquatic macrophyte decomposition in a eutrophic urban lake, China

Author:
Luai, Van Biak; Ding, Shaobo; Wang, Dong
Source:
The Science of the total environment 2019 v.650 pp. 1529-1536
ISSN:
0048-9697
Subject:
hydrochemistry,   etc   ; Myriophyllum spicatum; Trapa natans; aquatic ecosystems; eutrophication; habitats; lakes; macroinvertebrates; macrophytes; microbial activity; China;     Show all 11 Subjects
Abstract:
... The ‘home-field advantage’ (HFA) hypothesis states that litter decomposes faster in its ‘home’ habitat, i.e., in the same habitat as the plant species from which it was derived than it does ‘away’ from its home, i.e., in the habitat of a different plant species. However, studies pertaining to HFA in aquatic ecosystems are relatively few. One area not well-studied is whether the presence of living ...
DOI:
10.1016/j.scitotenv.2018.09.104

15. Applying multivariate statistics for identification of groundwater resources and qualities in NW Turkey

Author:
Everest, Timuçin; Özcan, Hasan
Source:
Environmental monitoring and assessment 2019 v.191 no.2 pp. 47
ISSN:
0167-6369
Subject:
hydrochemistry,   etc   ; data collection; groundwater; multivariate analysis; physicochemical properties; wells; Turkey (country);     Show all 7 Subjects
Abstract:
... This study, performed in Çanakkale-Ezine in NW of Turkey, analyzes the physicochemical properties of 37 groundwater wells. These 37 wells were chosen to represent each geological unit in the study area. The main purpose of the study and its contribution to the literature is to produce information about the resources and availability of groundwater by using multivariate statistical methods and lith ...
DOI:
10.1007/s10661-018-7165-6

16. Assessing Compliance of European Fresh Waters for Copper: Accounting for Bioavailability

Author:
Peters, Adam; Wilson, Iain; Merrington, Graham; Heijerick, Dagobert; Baken, Stijn
Source:
Bulletin of environmental contamination and toxicology 2019 v.102 no.2 pp. 153-159
ISSN:
0007-4861
Subject:
hydrochemistry,   etc   ; bioavailability; compliance; copper; environmental quality; organic carbon; risk; surface water;     Show all 8 Subjects
Abstract:
... This study determines the levels of compliance of European fresh waters with a bioavailability-based copper Environmental Quality Standard (EQS). A tiered approach for compliance assessment is used at which the first tier compares the dissolved metal concentration to a threshold, estimated using either regional or continental water chemistry data. At the second tier, the bioavailable metal concent ...
DOI:
10.1007/s00128-018-2515-1

17. Effect of polybrominated diphenyl ethers on the formation of disinfection byproducts in the water system

Author:
Wang, Huihui; Ma, Hui; Zhang, Min; Du, Tingting; Hao, Rongjie; Liu, Mengmeng; Li, Yao
Source:
Chemosphere 2019 v.217 pp. 42-46
ISSN:
0045-6535
Subject:
hydrochemistry,   etc   ; byproducts; chlorination; chloroform; disinfection; humic acids; polybrominated diphenyl ethers; rivers; surface water;     Show all 9 Subjects
Abstract:
... Disinfection byproducts (DBPs) can be formed from many different kinds of carbon- and nitrogen-based organic materials. This study investigated DBP formation in the presence of two types of polybrominated diphenyl ethers (PBDEs), 2,2′,4,4′-tetrabromodiphenyl ether (BDE 47) and 2,2′,3,3′,4,4′,5,5′,6,6′-decabromodiphenyl ether (BDE 209). The effects of PBDEs on the formation of DBPs upon the chlorin ...
DOI:
10.1016/j.chemosphere.2018.10.220

18. Hydro-chemical effects following restoration mowing in two rich fen plant communities

Author:
Menichino, Nina M.; Evans, Chris; Fenner, Nathalie; Freeman, Chris; Jones, Lawrence
Source:
Ecological engineering 2019 v.127 pp. 536-546
ISSN:
0925-8574
Subject:
hydrochemistry,   etc   ; biodiversity; eutrophication; mowing; plant communities; water quality; wetland plants; North America; Wales;     Show all 9 Subjects
Abstract:
... Mowing is a common management technique employed in Europe and North America to manage seral wetland plant communities to: (a) prevent development to late succession, (b) minimise internal eutrophication and (c) conserve biodiversity. However, little is known about the effect mowing has on water quality, and the duration of any effects. Therefore, mowing treatments were applied in two abandoned fe ...
DOI:
10.1016/j.ecoleng.2017.12.026

19. Why mixed groundwater at the outlet of open flowing wells in unconfined-aquifer basins can represent deep groundwater: implications for sampling in long-screen wells

Author:
Zhang, Zhi-Yuan; Jiang, Xiao-Wei; Wang, Xu-Sheng; Wan, Li; Wang, Jun-Zhi
Source:
Hydrogeology journal 2019 v.27 no.1 pp. 409-421
ISSN:
1431-2174
Subject:
hydrochemistry,   etc   ; basins; confined aquifer; groundwater; groundwater flow; hydrodynamics; mixing; models; unconfined aquifer; wells;     Show all 10 Subjects
Abstract:
... Groundwater sampled at the outlets of uncased flowing wells in a thick unconfined aquifer, which has undergone mixing, has been found to have hydrochemistry similar to deep groundwater in discharge areas. To identify the hydrodynamic causes, transient models of groundwater flow and age in a three-dimensional homogeneous unit basin with flowing wells are constructed to obtain flow rates in wells an ...
DOI:
10.1007/s10040-018-1842-y

20. Climate driven coevolution of weathering profiles and hillslope topography generates dramatic differences in critical zone architecture

Author:
Anderson, Robert S.; Rajaram, Harihar; Anderson, Suzanne P.
Source:
Hydrological processes 2019 v.33 no.1 pp. 4-19
ISSN:
0885-6087
Subject:
hydrochemistry,   etc   ; clay; climate; landscapes; mathematical models; plagioclase; soil; tectonics; topographic slope; water table; weathering;     Show all 11 Subjects
Abstract:
... Considerable debate revolves around the relative importance of rock type, tectonics, and climate in creating the architecture of the critical zone. We demonstrate the importance of climate and in particular the rate of water recharge to the subsurface, using numerical models that incorporate hydrologic flowpaths, chemical weathering, and geomorphic rules for soil production and transport. We track ...
DOI:
10.1002/hyp.13307