Spatial Variations and Regulating Processes of Groundwater Geochemistry in an Urbanized Valley Basin on Tibetan Plateau DOI Creative Commons

Wanping Wang,

Shilong Zhang, Shengbin Wang

и другие.

Applied Sciences, Год журнала: 2024, Номер 14(21), С. 9804 - 9804

Опубликована: Окт. 27, 2024

Groundwater resource is crucial for the development of agriculture and urban communities in valley basins arid semiarid regions. This research investigated groundwater chemistry a typical urbanized basin on Tibetan Plateau to understand hydrochemical status, quality, controlling mechanisms basins. The results show predominantly fresh slightly alkaline across basin, with approximately 54.17% HCO3-Ca type. About 12.5% 33.33% sampled groundwaters are facies Cl-Mg·Ca type Cl-Na type, respectively. found maximum TDS, NO3−, NO2−, F− content 3066 mg/L, 69.33 0.04 3.12 quality suitable domestic usage at all sampling sites based EWQI assessment but should avoid direct drinking some sporadic area. exceeding nitrogen fluoride contaminants would pose potential health hazards local residents, high risks only existed infants. Both minors adults medium risk these exceedingly toxic contaminants. predominant long-term irrigation according single indicator EC, SAR, %Na, RSC, KR, PI, PS integrated USSL, Wilcox, Doneen diagram assessment. But sodium hazard, alkalinity permeability problem be concern middle-lower stream areas. governed by water-rock interaction (silicate dissolution) natural sporadically evaporation. Human activities have posed disturbances inputted nitrogen, fluoride, salinity into groundwater. elevated from both agricultural municipal sewage. While associated It imperative address anthropogenic safeguard resources adverse external impacts human settlements within

Язык: Английский

Probabilistic human health risk assessment for arsenic, nickel and lead exposures based on two-dimensional Monte Carlo simulation DOI
Marjan Moazamnia, Sina Sadeghfam,

Naser Jabraili-Andariyan

и другие.

Groundwater for Sustainable Development, Год журнала: 2024, Номер 27, С. 101312 - 101312

Опубликована: Авг. 11, 2024

Язык: Английский

Процитировано

10

Biomonitoring of the Paraopeba river: Cytotoxic, genotoxic and metal concentration analysis three years after the Brumadinho dam rupture - Minas Gerais, Brazil DOI

Helen Gonçalves Marques,

L. Soares,

Frank Pereira de Andrade

и другие.

The Science of The Total Environment, Год журнала: 2025, Номер 964, С. 178618 - 178618

Опубликована: Янв. 24, 2025

Язык: Английский

Процитировано

1

Tracking the spatiotemporal evolution of groundwater chemistry in the Quaternary aquifer system of Debrecen area, Hungary: integration of classical and unsupervised learning methods DOI Creative Commons
Musaab A. A. Mohammed, Norbert Péter Szabó, Viktória Mikita

и другие.

Environmental Science and Pollution Research, Год журнала: 2025, Номер unknown

Опубликована: Март 1, 2025

Abstract Monitoring changes in groundwater quality over time helps identify time-dependent factors influencing water safety and supports the development of effective management strategies. This study investigates spatiotemporal evolution chemistry Debrecen area, Hungary, from 2019 to 2024, using indexing, machine learning, multivariate statistical techniques. These techniques include self-organizing maps (SOM), hierarchical cluster analysis (HCA), principal component (PCA), indexing (GWQI). The hydrochemical revealed that Ca-Mg-HCO₃ is dominant type, with a temporal shift toward Na-HCO₃, reflecting increased salinity driven by ongoing rock-water interactions. SOM showed transition heterogeneous more uniform time, suggesting greater stability aquifer system. Elevated zones shifted spatially due recharge flow patterns, while hardness intensified expanded, indicating continued carbonate dissolution. HCA highlighted shifts composition, six clusters identified five gradual homogenization quality. PCA further confirmed this trend, linking it underlying processes, such as water–rock interactions, limited contributions anthropogenic influences. GWQI indicated general improvement most regions meeting drinking standards. However, specific areas exhibited signs localized contamination, requiring targeted management. findings underscore importance continuous monitoring detect emerging trends guide resource highlights need for sustainable practices safeguard resources ensure long-term security area.

Язык: Английский

Процитировано

1

Groundwater denitrification using electro-assisted autotrophic processes: exploring bacterial community dynamics in a single-chamber reactor DOI Creative Commons
Javiera Toledo-Alarcón, Eduardo Ortega-Martínez, Javier A. Pavez-Jara

и другие.

Frontiers in Bioengineering and Biotechnology, Год журнала: 2025, Номер 13

Опубликована: Янв. 22, 2025

Nitrate, a major groundwater pollutant from anthropogenic activities, poses serious health risks when present in drinking water. Denitrification using bio-electrochemical reactors (BER) offers an innovative technology, eco-friendly solution for nitrate removal groundwater. BER use electroactive bacteria to reduce inorganic compounds like and bicarbonate by transferring electrons directly the cathode. In our work, two batch were implemented at 1V 2V, anaerobic digestate full-scale wastewater treatment plant as inoculum. nitrite, sulfate, total ammoniacal nitrogen, 16S rRNA analysis of bacterial community, monitored during operation. The results showed effective all BERs, with denitrification rate 2V higher than Control system, where endogenous respiration drove process. At 1V, complete conversion N 2 occurred 4 days, while it took 14 days. slower was likely due O production water electrolysis, which competed final electron acceptor. Bacterial community confirmed selection genus Desulfosporosinus Leptolinea , confirming transfer without biofilm. Besides, Hydrogenophaga enhanced electrolytically produced H . Sulfate not reduced, nitrogen remained constant indicating no dissimilatory nitrite reduction ammonia. These provide significant contribution scaling up electro-assisted autotrophic its application remediation, utilizing simple reactor configuration-a single-chamber, membrane-free design- conventional power source instead potentiostat.

Язык: Английский

Процитировано

0

Mechanistic insights into electrode autotrophic denitrification: Isolation and electron transfer of Paracoccus versutus HD1 in denitrifying bioelectrochemical systems DOI
Bo Cao, Ting Zhao,

Yanhong Ge

и другие.

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 162640 - 162640

Опубликована: Апрель 1, 2025

Язык: Английский

Процитировано

0

Bio-fertilizer as a Pathway to Minimize Nitrate Leaching from Chemical Fertilizer in High Yield Peppermint Production DOI
Seyyed Hossein Pourhosseini, Ali Azizi,

Forouh Sadat Seyedi

и другие.

Journal of Cleaner Production, Год журнала: 2024, Номер 468, С. 143100 - 143100

Опубликована: Авг. 1, 2024

Язык: Английский

Процитировано

3

Performance evaluation of a new sponge-based moving bed biofilm reactor for the removal of pharmaceutical pollutants from real wastewater DOI Creative Commons

Zohreh Chalipa,

Majid Hosseinzadeh, Mohammad Reza Nikoo

и другие.

Scientific Reports, Год журнала: 2024, Номер 14(1)

Опубликована: Июнь 20, 2024

Abstract Pharmaceutical pollutants, a group of emerging contaminants, have attracted outstanding attention in recent years, and their removal from aquatic environments has been addressed. In the current study, new sponge-based moving bed biofilm reactor (MBBR) was developed to remove chemical oxygen demand (COD) pharmaceutical compound Ibuprofen (IBU). A 30-L pilot scale MBBR constructed, which continuously fed effluent first clarifier Southern Tehran wastewater treatment plant. The controlled operational parameters were pH natural range, Dissolved Oxygen 1.5–2 mg/L, average suspended mixed liquor solids (MLSS), volatile (MLVSS) 1.68 ± 0.1 g/L 1.48 g/L, respectively. effect hydraulic retention time (HRT) (5 h, 10 15 h), filling ratio (10%, 20%, 30%), initial IBU concentration (2 5 mg/L) on efficiencies assessed. findings this study revealed COD efficiency ranging 48.9 96.7%, with best observed at an HRT 2 mg/L. Simultaneously, rate ranged 25 92.7%, highest under same ratio, albeit An extension h significantly improved both removal. However, further slightly enhanced IBU, even some cases, decreased. Based obtained results, 20% chosen as optimum state. Increasing mg/L generally removal, whereas increase caused decline This also optimized reactor’s for by using response surface methodology (RSM) independent variables HRT, concentration. regard, quadratic model found be significant. Utilizing central composite design (CCD), optimal operating 21%, 3 pinpointed, achieving efficiencies. present demonstrated that stands out promising technology

Язык: Английский

Процитировано

2

Risk assessment and soil heavy metal contamination near marble processing plants (MPPs) in district Malakand, Pakistan DOI Creative Commons
Asghar Khan, Muhammad Saleem Khan, Fazal Hadi

и другие.

Scientific Reports, Год журнала: 2024, Номер 14(1)

Опубликована: Сен. 15, 2024

Язык: Английский

Процитировано

2

Hydro-geochemistry and age-dependent health risk assessment of nitrate, nitrite, and fluoride in health facilities water: a multivariate analysis DOI

Areej Nadeem,

Behzad Murtaza, Muhammad Imran

и другие.

Environmental Science and Pollution Research, Год журнала: 2024, Номер unknown

Опубликована: Окт. 4, 2024

Язык: Английский

Процитировано

2

Appraisal of groundwater suitability for drinking and irrigation utilities in the Cooum River Basin, South India: Implications from uranium, nitrate, and fluoride level health risks DOI
Sivakumar Manickam,

T. Subramani,

V.N. Prapanchan

и другие.

Physics and Chemistry of the Earth Parts A/B/C, Год журнала: 2024, Номер 136, С. 103792 - 103792

Опубликована: Окт. 25, 2024

Язык: Английский

Процитировано

2