The soil and water loss problem in rock mining areas is an extremely serious problem,and microbes play significant roles in ecological restoration of those areas.In this study,directive screening was used to explore the efficiency of microbe-mediated habitat restoration and the underlying mechanisms.A bacterial strain NLX-4,which was then identified as according to its 16S rRNA gene sequence,was screened out as an efficient silicate dissolution bacterium with the ability to secrete siderophore and indole-3-acetic acid (IAA).Moreover,pH value,element (K,Al,Si) release,organic acid content,amino acid concentration,polysaccharide content,and rock particle diameter variation in culture medium were analyzed to explore the ability of NLX-4 to promote dolomite dissolution under controlled experimental conditions.These results showed that NLX-4 could play a positive role in dolomite dissolution by producing tartaric acid (>777 mg·L) and polysaccharides (>8.21g·L).Therefore, NLX-4 is an efficient microbial resource that can be used in rehabilitation of abandoned mines and has great application potential.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.13227/j.hjkx.201607075 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Characteristics of boron isotopes and their indicative significance in groundwater arsenic mobilization from an alluvial basin.
Sci Total Environ
December 2024
MWR Key Laboratory of Groundwater Conservation and School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing 100083, China.
Groundwater with high arsenic (As) concentration is widely distributed all over the world and seriously threatens human health. Due to the similar chemical properties, boron (B) would be used to understand the formation mechanism of high As groundwater. Thirty groundwater samples were collected from alluvial fan, transition area, and flat plain generally along the flow path in the northwestern Hetao Basin, China.
View Article and Find Full Text PDFNumerical Simulation of CO Dissolution and Mineralization Storage Considering CO-Water-Rock Reaction in Aquifers.
ACS Omega
November 2024
Petroleum Engineering School, Yangtze University, Wuhan 430100, China.
CO storage technology is crucial in addressing climate change by controlling the greenhouse effect. This technology involves the injection of captured CO into deep saline aquifers, where it undergoes a series of reactions, such as structure binding, dissolution, and mineralization, enabling long-term storage. Typically, the CO is maintained in a supercritical state, enhancing its storage efficiency.
View Article and Find Full Text PDFHydrochemical assessment of groundwater utilizing statistical analysis, integrated geochemical methods, and EWQI: a case study of Laiwu region, North China.
Environ Monit Assess
November 2024
College of Earth Science and Engineering, Shandong University of Science and Technology, Qingdao, 266590, Shandong, China.
The investigation of groundwater quality and hydrochemical assessment holds immense significance in safeguarding and ensuring the rational utilization of groundwater resources. This study utilizes groundwater sampling and testing data from the Laiwu region (LWR), encompassing both dry and wet seasons, to delve into the hydrochemical characteristics, ion sources, and overall groundwater quality. The research findings indicate that the groundwater in LWR exhibits weak alkalinity, with the dominant ions being Ca followed by Mg, Na, and K, and HCO, SO, NO, Cl, and F.
View Article and Find Full Text PDFPatterns of spatiotemporal variations in the hydrochemistry and controlling factors of bedrock aquifers in the northern region of the Linhuan mining area.
J Contam Hydrol
November 2024
School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China.
Systematically studying the hydrochemical evolution of bedrock groundwater in mining areas during mining process is crucial for effective groundwater resource management and coal mine production. The spatiotemporal characteristics and hydrochemical evolution patterns of the Permian fractured sandstone aquifer (PA) and the Carboniferous Taiyuan Formation limestone aquifer (CTA), both of which are directly associated with coal mining in the northern Linhuan mining area, China, were investigated using multivariate statistical analyses, hydrochemical graphical methods, ion ratio analysis, and a conceptual model. 72 groundwater samples, collected before and after mining, were classified into four groups by hierarchical cluster analysis (HCA).
View Article and Find Full Text PDFUnraveling the impact of high arsenic, fluoride and microbial population in community tubewell water around coal mines in a semiarid region: Insight from health hazards, and geographic information systems.
J Hazard Mater
December 2024
Department of Botany, GDC, Pulwama 192301, Jammu and Kashmir, India.
Article Synopsis
- High levels of arsenic (As) and fluoride (F), along with microbial pathogens, are a significant public health risk in semiarid regions, affecting over 240 million people, including those in Pakistan.
- Groundwater around coal mines in Quetta shows concerning concentrations of As (0.2-16.6 µg/L) and F (0.4-18.5 mg/L), with mining areas experiencing even higher levels and various geochemical factors influencing these contaminants.
- A health risk assessment indicates that over 64% of groundwater samples exceed WHO guidelines for As and F, posing greater carcinogenic and non-carcinogenic risks to children, highlighting a critical need for improved water quality and management.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!