Removal of Iron and Manganese in Groundwater Using Alum and Potassium Permanganate DOI

Khairul Hafiz Shahrul Nizam,

Nur Syahiza Zainuddin

Advances in science and technology, Год журнала: 2023, Номер 127, С. 55 - 64

Опубликована: Май 19, 2023

Groundwater has become one of the natural sources water nowadays. Naturally, groundwater contains dissolving materials such as soils, rocks, and minerals, which later release constituents, including iron (Fe 2+ ) manganese (Mn). However, raw been found to consist a high concentration exceed Quality Standard published by Department Environment Malaysia. Initially, Fe Mn exceeding limit mentioned in standard; 1.0 0.2 mg/L, respectively, might affect quality groundwater. Hence, condition needs be treated before it can distributed user. This study presents combination usage alum potassium permanganate (KMnO 4 removing The jar test was main mechanism used identifying best optimum medium dosages (alum KMnO well contact time for both mediums efficiently remove In this study, samples were taken from Chicha Water Treatment Plant Kelantan. It said that managed up 35% 45%, respectively when using dosage 12 mg/L 1.5mg/L with 40 minutes. addition, also other parameters colour, turbidity, cations, pH.

Язык: Английский

Investigation and comparative analysis of ecological risk for heavy metals in sediment and surface water in east coast estuaries of India DOI
Mrunmayee Manjari Sahoo, Janaki Ballav Swain

Marine Pollution Bulletin, Год журнала: 2023, Номер 190, С. 114894 - 114894

Опубликована: Апрель 3, 2023

Язык: Английский

Процитировано

18
Source Identification and Release Potential of Soil Phosphorus in the Water-Level Fluctuation Zone of Large Reservoirs: A Case Study of the Three Gorges Reservoir, China DOI Open Access
Chaonan Han,

Tianhao Dai,

Zebin Tian

и другие.

Water, Год журнала: 2025, Номер 17(5), С. 611 - 611

Опубликована: Фев. 20, 2025

Reservoir water level regulation induces intricate processes of phosphorus (P) migration and release within the water-level fluctuation zone (WLFZ). These dynamic interactions pose significant challenges for effective pollution management strategies. This study focused on two typical tributary WLFZs (narrow gorges type wide river type) in Three Gorges (TGR), aiming to quantify P sources assess their potentials across operational periods. Results showed that deposition suspended particulate (SS-P) transported from upstream was dominant source during low period (August 2022). During drainage period, main ‘narrow type’ WLFZ loss slope soil above WLFZ, but ‘wide had a mix sources, including soil, SS-P depositions TGR backwater upstream. Among three exhibited relatively higher degree saturation (DPS) values (0.5–18.8%), indicating greater potential release. Given is primary which coincides with spring plowing season, it crucial implement measures prevent soils safeguard quality TGR.

Язык: Английский

Процитировано

0
Impact of organic carbon-Mn oxide interactions on colloid stability and contaminant metals in aquatic environments DOI Creative Commons
Qianqian Li, Debra Hausladen

Water Research, Год журнала: 2025, Номер 280, С. 123445 - 123445

Опубликована: Март 5, 2025

Язык: Английский

Процитировано

0
Effect of Sulfide on the Cotransport of Ferrihydrite and Birnessite Colloids with Phosphorus in Saturated Porous Media DOI
Shuxin Huang, Caixiang Zhang, Lu Chen

и другие.

ACS ES&T Water, Год журнала: 2025, Номер unknown

Опубликована: Апрель 14, 2025

Язык: Английский

Процитировано

0
A Critical Look at Colloid Generation, Stability, and Transport in Redox-Dynamic Environments: Challenges and Perspectives DOI Creative Commons
Eleanor Spielman-Sun, Kristin Boye, Dipankar Dwivedi

и другие.

ACS Earth and Space Chemistry, Год журнала: 2024, Номер 8(4), С. 630 - 653

Опубликована: Март 22, 2024

Colloid generation, stability, and transport are important processes that can significantly influence the fate of nutrients contaminants in environmental systems. Here, we critically review existing literature on colloids redox-dynamic environments summarize current state knowledge regarding mechanisms colloid generation chemical controls over colloidal behavior such environments. We also identify critical gaps, as lack universally accepted cross-discipline definition modeling infrastructure hamper an in-depth understanding behavior, potential. propose to go beyond a size-based operational consider functional differences between dissolved species. argue predict environments, more empirical data needed parametrize validate models. components element budgets systems must urgently be considered field well lab experiments reactive intend bring further clarity openness reporting measurements improve consistency. Additionally, suggest methodological toolbox for examining impacts redox dynamics experiments.

Язык: Английский

Процитировано

3
Distribution Characteristics and Genesis of Iron and Manganese Ions in Groundwater of Eastern Sanjiang Plain, China DOI Creative Commons
Mingguo Wang, Min Wang, Li Yang

и другие.

Water, Год журнала: 2023, Номер 15(11), С. 2068 - 2068

Опубликована: Май 30, 2023

Groundwater resources are an essential component of global water resources. Long-term consumption groundwater exceeding the standard levels for iron and manganese can lead to chronic diseases, posing a threat human health. The Sanjiang Plain is largest swamp wetland area in China has high groundwater, but cause still needs be clarified. Based on results quality tests 41 samples Eastern Plain, this paper analyzes distribution characteristics causes from perspectives original strata environment, redox conditions, pH hydrochemical indicator factors research area, using statistical methods GIS technology. show that content prevalent exceedance rate higher than (87.80% 82.90%, respectively). primary sources minerals environment. Influenced by such as acidic reducing rich organic matter, insoluble high-valent oxides reduced low-valent soluble divalent manganese. At same time, groundwater’s mineralization evaporation concentration conducive increased content, while influence activities small.

Язык: Английский

Процитировано

8
In situ stabilization of antimony and arsenic in co-contaminated soil using organic matter-Fe/Mn (hydr)oxides colloids and their mineral phase transformation DOI

Junhao Zheng,

Lu Liu, Qi Li

и другие.

Journal of Environmental Sciences, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 1, 2024

Язык: Английский

Процитировано

2
Surface Water–Groundwater Transformation Patterns in the Jianghan Plain after the Impoundment of the Three Gorges Project and the Opening of the Yangtze-to-Hanjiang Water Transfer Project DOI Open Access

Jinping Feng,

Dongguo Shao, Wenquan Gu

и другие.

Water, Год журнала: 2023, Номер 15(16), С. 2952 - 2952

Опубликована: Авг. 16, 2023

Understanding the law of surface water–groundwater conversion in face high-intensity human activities is still a challenge. In this study, we employed statistical and system dynamics methods to investigate Jianghan Plain following impoundment Three Gorges Project (TGP) Yangtze-to-Hanjiang Water Transfer (YHWTP). The groundwater level’s long data set was used for first time study water level change exchange research region after TGP delivery from YHWTP. findings suggest significant decrease interannual trend region. It observed that 1m rise can lead 0.11–0.38 m level. fluctuation coefficients are influenced by YHWTP, causing them increase decrease, respectively. general, recharges studied exchanges between Yangtze River’s main stream, middle Hanjiang Plain, lower reaches River are, on average, 10−2 m3/(d·m), 10−5 10−3 m3/(d·m) orders magnitude, stream reduced impoundment, it enhanced YHWTP delivery.

Язык: Английский

Процитировано

6
Sedimentation kinetics and stability mechanisms of iron and manganese colloids in simulated groundwater DOI
Shuxin Huang, Caixiang Zhang, Lu Chen

и другие.

Environmental Science Nano, Год журнала: 2024, Номер 11(7), С. 3114 - 3123

Опубликована: Янв. 1, 2024

The occurrence of different forms iron and manganese colloids in the subsurface environment has been widely reported.

Язык: Английский

Процитировано

1
Environmental Fingerprints of Nonoxygen Heteroatomic Molecules in Aquatic Dissolved Organic Matter Elucidated by Ultra-High-Resolution Mass Spectrometry DOI
Jingjing Sun, Qing‐Long Fu, Pingqing Fu

и другие.

ACS ES&T Water, Год журнала: 2024, Номер 4(11), С. 5027 - 5038

Опубликована: Окт. 30, 2024

The quality and chemodiversity of aquatic dissolved organic matter (DOM), crucial to global carbon cycling ecological functions, are affected by microbial anthropogenic activities. In this study, molecular characteristics DOM collected from 14 field water samples were compared with three standard the International Humic Substances Society using Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS). Results indicated that microbially terrestrially derived contributed surface groundwater pool, higher lability (higher H/Ciw) in than IHSS standards, which was related overall impact diverse biogeochemical processes factors. perturbations contribute more nonoxygen heteroatomic (N, S, Cl atoms) molecules water, pollutants (surfactants sucralose) had significant signatures waters intensive emissions. A strong correlation among indicators, nutrients, synthetic results activities within basin heteroatoms increased diversity. This study has highlighted environmental reflecting factors, shedding new insights into freshwater health.

Язык: Английский

Процитировано

1