Temporal variation of arsenic and nitrate content in groundwater of the Duero River Basin (Spain)

Mayorga, Paloma Campos Díaz de; Moyano, Amelia; Anawar, Hossain M.; García-Sánchez, Antonio-Javier

doi:10.1016/j.pce.2013.04.001

Cited by 23 publications

(7 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Considering the positive correlation among As,

{NH}_{4}^{+}

, and TOC, these results suggest that groundwater samples collected along the drainage channels might present distinct biogeochemical characteristics and redox properties. Agricultural activities such as N-fertilizer application and irrigation might also play important roles in As release and mobilization (Busbee et al, 2009; Mayorga et al, 2013). The reasonable explanation might be that the irrigation and drainage processes could leach As and dissolved organic matter from surficial sediments to the underlying aquifer, which caused the biogeochemical changes (He, 2010).…”

Section: Resultsmentioning

confidence: 99%

“…Recent studies showed that agricultural activities such as irrigation might play important roles in As release and mobilization. The input of organic matter and fertilizers during the drainage process could change the environmental conditions, which could further affect the microbial communities (Kefala-Agoropoulou et al, 2008; Mayorga et al, 2013). These studies showed the importance of microorganisms in As release and mobilization, however, failed to provide information of in situ microbial community structure which is important in understanding the interaction between microorganism and As geochemistry in groundwater in agricultural area.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Microbial Community of High Arsenic Groundwater in Agricultural Irrigation Area of Hetao Plain, Inner Mongolia

Wang

Jiang

et al. 2016

Front. Microbiol.

View full text Add to dashboard Cite

Microbial communities can play important role in arsenic release in groundwater aquifers. To investigate the microbial communities in high arsenic groundwater aquifers in agricultural irrigation area, 17 groundwater samples with different arsenic concentrations were collected along the agricultural drainage channels of Hangjinhouqi County, Inner Mongolia and examined by illumina MiSeq sequencing approach targeting the V4 region of the 16S rRNA genes. Both principal component analysis and hierarchical clustering results indicated that these samples were divided into two groups (high and low arsenic groups) according to the variation of geochemical characteristics. Arsenic concentrations showed strongly positive correlations with NH4+ and total organic carbon (TOC). Sequencing results revealed that a total of 329–2823 operational taxonomic units (OTUs) were observed at the 97% OTU level. Microbial richness and diversity of high arsenic groundwater samples along the drainage channels were lower than those of low arsenic groundwater samples but higher than those of high arsenic groundwaters from strongly reducing areas. The microbial community structure in groundwater along the drainage channels was different from those in strongly reducing arsenic-rich aquifers of Hetao Plain and other high arsenic groundwater aquifers including Bangladesh, West Bengal, and Vietnam. Acinetobacter and Pseudomonas dominated with high percentages in both high and low arsenic groundwaters. Alishewanella, Psychrobacter, Methylotenera, and Crenothrix showed relatively high abundances in high arsenic groundwater, while Rheinheimera and the unidentified OP3 were predominant populations in low arsenic groundwater. Archaeal populations displayed a low occurrence and mainly dominated by methanogens such as Methanocorpusculum and Methanospirillum. Microbial community compositions were different between high and low arsenic groundwater samples based on the results of principal coordinate analysis and co-inertia analysis. Other geochemical variables including TOC, NH4+, oxidation-reduction potential, and Fe might also affect the microbial composition.

show abstract

“…Considering the positive correlation among As,

{NH}_{4}^{+}

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Microbial Community of High Arsenic Groundwater in Agricultural Irrigation Area of Hetao Plain, Inner Mongolia

Wang

Jiang

et al. 2016

Front. Microbiol.

View full text Add to dashboard Cite

show abstract

“…The result of these investigations differs from the above mechanism. Mayorga et al (2013) stated that the arsenic in water samples of Spain decreased along with the increase in nitrate concentrations and assumed that the increased use of nitrogenous fertilizer and pig manure in agricultural activities increased the nitrate content in groundwater, which would favor the precipitation of FeO(OH) and arsenic adsorption. As well, Smith et al (2017) reported that the accumulation of nitrate in anoxic groundwater improved bacterial mediated processes in the aquifer that ultimately result in arsenic immobilization.…”

Section: Arsenic Vs Nitrogenmentioning

confidence: 99%

Influence of chemical fertilizers on arsenic mobilization in the alluvial Bengal delta plain: a critical review

Islam

Mostafa

2021

Journal of Water Supply: Research and Technology-Aqua

View full text Add to dashboard Cite

Arsenic contamination of alluvial aquifers of the Bengal delta plain causes a serious threat to human health for over 75 million people. The study aimed to explore the impacts of chemical fertilizer on arsenic mobilization in the sedimentary deposition of the alluvial Bengal delta plain. It selected ten comparatively higher affected Districts and the least affected two Divisions as a referral study site. The countrywide pooled concentration of arsenic in groundwater was 109.75 μg/L (52.59, 166.91) at a 95% confidence interval, which was double the national guideline value (50 μg/L). The analysis results showed a strong positive correlation (r ≥ 0.5) of arsenic with NO3, NH4, PO4, SO4, Ca, and K, where a portion of those species originated from fertilizer leaching into groundwater. The results showed that PO4 played a significant influence in arsenic mobilization, but the role of NO3, SO4, and NH4 was not clear at certain lithological conditions. It also showed that clay, peat, silt-clay, and rich microbial community with sufficiently organic carbon loaded soils could lead to an increase in arsenic mobilization. Finally, the study observed that the overall lithological conditions are the main reason for the high arsenic load in the study area.

show abstract

“…There are reports on coexistence of nitrate along with arsenic and iron in groundwater of many parts of the world (Giménez et al 2013;Mayorga et al 2013;Venkataraman and Uddameri 2012). For instance, up to 200 mg/L nitrate, 1990 µg/L arsenic and 2000 µg/L iron were detected in the groundwater of Chaco Plain, Argentina (Giménez et al 2013), which exceeded MCL of nitrate, arsenic and iron.…”

Section: Introductionmentioning

confidence: 97%

Arsenic, iron and nitrate removal from groundwater by mixed bacterial culture and fate of arsenic-laden biosolids

Shakya

Ghosh

2018

Int. J. Environ. Sci. Technol.

View full text Add to dashboard Cite

Arsenic, iron and nitrate coexist in groundwater at a wide range of concentrations in various regions of the world. This study aims at investigating the concurrent arsenic and iron removal by combining the advantages of nitrate removal in a sulphidogenic bioreactor. A laboratory-scale suspended growth reactor was used to assess the performance of mixed bacterial culture at different arsenic, iron and nitrate concentrations. A semi-batch reactor (SmBR) was operated for more than 400 days in anoxic conditions at 30 ± 4 °C with different influent arsenate (250-1000 µg/L as arsenic), iron (2.0 mg/L) and nitrate (100-250 mg/L) concentrations in simulated groundwater and HRT of 3-6 days. Effects of different electron donors to deliver removing power on arsenic, iron and nitrate were also investigated. Nitrate was completely removed at all tested concentrations, while concentration of arsenic and iron met drinking water standards. The reactor was also charged with actual groundwater containing arsenic (up to 226 µg/L) as well as iron (up to 8.3 mg/L) and was able to remove both the contaminants below drinking water standards after addition of sufficient amount of sulphate. Toxicity characteristics leaching procedure results indicated that leachate arsenic concentrations were below the maximum United States Environmental Protection Agency guideline value for arsenic and biosolids which did not impose any environmental hazard.

show abstract

Temporal variation of arsenic and nitrate content in groundwater of the Duero River Basin (Spain)

Cited by 23 publications

References 29 publications

Microbial Community of High Arsenic Groundwater in Agricultural Irrigation Area of Hetao Plain, Inner Mongolia

Microbial Community of High Arsenic Groundwater in Agricultural Irrigation Area of Hetao Plain, Inner Mongolia

Influence of chemical fertilizers on arsenic mobilization in the alluvial Bengal delta plain: a critical review

Arsenic, iron and nitrate removal from groundwater by mixed bacterial culture and fate of arsenic-laden biosolids

Contact Info

Product

Resources

About