Article
Microbiology
Sarah Zecchin, Simona Crognale, Patrizia Zaccheo, Stefano Fazi, Stefano Amalfitano, Barbara Casentini, Matteo Callegari, Raffaella Zanchi, Gian Attilio Sacchi, Simona Rossetti, Lucia Cavalca
Summary: Arsenic mobilization in groundwater systems is influenced by diverse microorganisms and physicochemical factors, with diverse microbial communities found in the Po Plain. The oxidation state of arsenic is a key driver in shaping these communities, with the oxidation rate linearly correlated to As(III) concentration. These findings provide valuable insights for biotechnology-based arsenic bioremediation efforts.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Environmental Sciences
Xian-Chun Zeng, Yifan Xu, Zhong He, Yanxin Wang, Xiaoming Chen
Summary: Introducing a powerful chemoautotrophic As(III)-oxidizing bacterium into a new biofilm bioreactor enhances the efficiency and stability of treating As(III)-contaminated groundwater, with good scalability under different geochemical conditions. The bioreactor is easy to construct and operate, and shows some removal efficiency towards common contaminants in groundwater.
Article
Plant Sciences
Sarun Thongnok, Wilailak Siripornadulsil, Surasak Siripornadulsil
Summary: The combination of AsIII-oxidizing bacteria and Cd-tolerant bacteria significantly improved rice growth and yield while reducing arsenic toxicity and accumulation in rice grains in As-contaminated soils.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2021)
Article
Biotechnology & Applied Microbiology
Weiwei Xiao, Xiaoman He, Guobing Lin, Zhaoguang Yang, Lin Wang
Summary: Rice consumption is the main route of human exposure to arsenic contamination. Two arsenite-oxidizing bacterial strains were isolated from contaminated soils, showing potential in reducing arsenic accumulation in rice plants, making them candidates for arsenic contamination remediation in the environment.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Microbiology
Constanza Herrera, Ruben Moraga, Brian Bustamante, Claudia Vilo, Paulina Aguayo, Cristian Valenzuela, Carlos T. Smith, Jorge Yanez, Victor Guzman-Fierro, Marlene Roeckel, Victor L. Campos
Summary: Arsenic is a semimetal toxic to humans, commonly exposed through consumption of contaminated water. This study isolated a high As-resistant bacterium Pseudomonas migulae VC-19 from sediments of the As-rich Camarones River in Chile, showing high rates of As(III) conversion when immobilized on activated carbon. It has the potential for biotechnological application in treating arsenic contaminated waters.
Article
Pharmacology & Pharmacy
Barbara A. Roggenbeck, Lila K. Bull Chief, Seth T. Walk
Summary: Arsenic is a Group 1 human carcinogen and over 200 million people worldwide are exposed to unsafe levels of arsenic through contaminated drinking water. Both acute and chronic health outcomes related to arsenic exposure vary significantly among exposed individuals.
Article
Environmental Sciences
Morteza Haghi, Salar H. Diznabi, Ismail Karaboz, Esra Ersoy Omeroglu
Summary: This study isolated and identified six arsenic-resistant bacteria from the drying Urmia lake, which showed high tolerance to arsenate and arsenite. These strains harbored the arsenate reductase gene (arsC) but lacked the respiratory arsenate reductase gene (arrB) and arsenite oxidase gene (arxA). The study provides potential bacteria for bioremediation practices and reveals arsenic contamination in Urmia lake.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2023)
Article
Environmental Sciences
Abdur Razzak, Md Shafiquzzaman, Husnain Haider, Mohammad Alresheedi
Summary: This study investigated the biological oxidation of As(III) and Fe(II) using laboratory experiments and reactive transport modeling. By using Fe-oxidizing bacteria and coconut husk support media, the study successfully reduced the concentration of As(III) and Fe(II) in synthetic groundwater.
ENVIRONMENTAL POLLUTION
(2021)
Article
Environmental Sciences
Mengmeng Zhao, Gege Zheng, Xiuyun Kang, Xiaoyan Zhang, Junming Guo, Mingxia Zhang, Jingwen Zhang, Yiping Chen, Lingui Xue
Summary: Microbial remediation plays a crucial role in improving heavy metal-polluted water. In this study, two bacterial strains, K1 (Acinetobacter gandensis) and K7 (Delftiatsuruhatensis), were identified for their high tolerance and strong oxidation ability towards arsenite [As(III)]. These strains could tolerate high concentrations of As(III) and facilitate its oxidation and adsorption for remediation purposes. The findings also demonstrated the improved efficiency of As(III) adsorption when these bacterial strains were co-immobilized with Chlorella, suggesting a promising method for cleaner production of industrial wastewater.
ENVIRONMENTAL POLLUTION
(2023)
Article
Biology
Vikas Hooda, Neelam Verma, Anjum Gahlaut, Ashish Gothwal
Summary: Arsenic is considered highly hazardous and a serious carcinogen. A new enzymatic method using arsenite oxidase has been proposed for arsenic determination, with an immobilized arsenite oxidase colorimetric PVC strip developed for detection. The stability of the immobilized enzyme was significantly enhanced compared to the free enzyme, showing potential for large scale applications.
BRAZILIAN ARCHIVES OF BIOLOGY AND TECHNOLOGY
(2021)
Article
Engineering, Environmental
Prinpida Sonthiphand, Supeerapat Kraidech, Saowarod Polart, Srilert Chotpantarat, Kanthida Kusonmano, Pichahpuk Uthaipaisanwong, Chalida Rangsiwutisak, Ekawan Luepromchai
Summary: This study explored the arsenic speciation, abundance of arsenite-oxidizing bacteria, and microbial community structures in groundwater, surface water, and soil from a gold mining area. The analysis revealed that the majority of soil and surface water microbiomes were Proteobacteria, Actinobacteria, Bacteroidetes, and Chloroflexi, while the groundwater microbiomes were dominated exclusively by Betaproteobacteria and Alphaproteobacteria. Geochemical factors influencing microbial structure differed between groundwater and surface water.
JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING
(2021)
Article
Environmental Sciences
Tiantian Ke, Di Zhang, Huaming Guo, Wei Xiu, Yi Zhao
Summary: This study profiles the genes and microbial communities associated with arsenic biogeochemical cycling in high arsenic groundwater in the Hetao Basin of China. The results show significant differences in microbial community structures between low and high arsenic groundwater samples, with higher microbial diversity indices in the high arsenic samples. The study also reveals the co-occurrence of arsenic functional genes in the high arsenic groundwater.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Da-won Lee, Yongtae Ahn, Dong-Wan Cho, Bikram Basak, Byong-Hun Jeon, Jaeyoung Choi
Summary: This study evaluated the effectiveness of FeS2/NaClO treatment for removing arsenic (As) from fractured-bedrock groundwater through oxidative adsorption. The addition of NaClO significantly increased the As removal efficiency, achieving 98.6% removal within 60 minutes. Coexisting anions (Cl-, CO3-, HCO3-, NO3-, and F-) did not affect the As removal capacity of FeS2/NaClO, except for PO43-. X-ray spectroscopy analysis revealed the oxidation of As(III) to As(V) during the adsorption process. The continuous flow-bed column study confirmed the efficiency of FeS2/NaClO treatment in lowering As contamination levels.
ENVIRONMENTAL POLLUTION
(2023)
Article
Biology
Esra Ersoy Omeroglu, Mert Sudagidan, Erdal Ogun
Summary: This study aimed to investigate the arsenic pollution and arsenic-metabolizing bacteria in Lake Van. The results showed that the arsenic levels in the lake varied seasonally. The identified arsenic-resistant bacteria could potentially contribute to the remediation of environmental arsenic pollution.
Article
Environmental Sciences
Aysegul Yagmur Goren, Mehmet Kobya, Alireza Khataee
Summary: The study focused on the use of an aerated electrocoagulation (EC) system to simultaneously remove arsenate (As(V)) and arsenite (As(III)), finding that the efficiency of the system depended on airflow rate and applied current, and demonstrated high arsenic removal efficiency under certain operating conditions, showing potential for industrial applications.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Environmental
Satika Boonkaewwan, Prinpida Sonthiphand, Srilert Chotpantarat
Summary: The release of arsenic in groundwater in Rayong Province may originate from the dissolution of iron oxides and hydroxides, with the speciation of arsenic being controlled by the reducing environment of the groundwater system. Anthropogenic inputs and intensive pumping activities may exacerbate the reducing environment, facilitating the release of As(III).
ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
(2021)
Article
Microbiology
Phurinat Pipattanajaroenkul, Srilert Chotpantarat, Teerasit Termsaithong, Prinpida Sonthiphand
Summary: The study examined arsenite-oxidizing bacteria in groundwater from Rayong Province, Thailand, finding them phylogenetically related to Betaproteobacteria and Alphaproteobacteria. Factors like Fe and As(III) were found to influence their community and abundance, with As(III) dominance promoting their abundance in groundwater. The knowledge gained can contribute to the development of bioremediation strategies for As removal from groundwater.
CURRENT MICROBIOLOGY
(2021)
Article
Geosciences, Multidisciplinary
Srilert Chotpantarat, Jirawan Thamrongsrisakul
Summary: This study focused on investigating the hydrogeological and hydrochemical characteristics around a gold mine at the border between the Phichit and Phetchabun provinces. The results showed that both natural and anthropogenic processes had an impact on groundwater quality, with natural processes playing a greater role.
JOURNAL OF ASIAN EARTH SCIENCES
(2021)
Article
Engineering, Environmental
Yaowaluck Charuseiam, Srilert Chotpantarat, Chakkaphan Sutthirat
Summary: This study aimed to predict the AMD generation potential and determine the concentrations of potentially toxic metals in waste rocks from a gold mine in Thailand. It was found that some samples, especially massive sulfide samples, generated significant amounts of AMD. The transition dump site samples released higher levels of acidity and sulfate compared to other dump sites, posing a risk to ecosystems.
ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
(2022)
Article
Geosciences, Multidisciplinary
Pawee Klongvessa, Srilert Chotpantarat
Summary: This study determined the correlation between rainfall duration and occurrence time with direct runoff in the Upper Yom basin. It was found that the correlation coefficients during saturated soil periods produced better results. After removing the baseflow, the correlation between direct runoff and rainfall improved further. Therefore, direct runoff can be predicted using a specific rainfall duration.
Article
Computer Science, Information Systems
Katawut Waiyasusri, Srilert Chotpantarat
Summary: This study used the case of Koh Chang in Thailand to analyze the spatial evolution from a multi-scenario perspective based on land-use change and logistic regression modeling. The results showed that the expansion of urban and built-up land has replaced mangrove forests and orchards over the past 30 years. The model projections provided insights into possible changes and can help with resource planning for sustainable coastal tourist city development.
ISPRS INTERNATIONAL JOURNAL OF GEO-INFORMATION
(2022)
Article
Environmental Sciences
Wiyada Nilkarnjanakul, Pensri Watchalayann, Srilert Chotpantarat
Summary: This study found the presence of arsenic and lead in groundwater in Ban Khai District, with arsenic appearing as a hot spot in some areas during the wet season possibly due to human activity contamination. The concentration of lead did not exceed WHO guidelines, indicating a background concentration. Most of the wells were in an oxidation state, supporting arsenic mobility.
ENVIRONMENTAL RESEARCH
(2022)
Article
Geosciences, Multidisciplinary
Kiattipong Kamdee, Prayath Nantasin, Srilert Chotpantarat, Chakrit Saengkorakot, Patchareeya Chanruang, Chalermpong Polee, Sasiphan Khaweerat, Nichtima Uapoonphol, Ratchai Fungklin, Wiranee Sriwiang, Supalak Kongsri, Chunyapuk Kukusamude
Summary: The Quaternary sequences in the Phrae Basin, northern Thailand, were classified into three aquifers based on depth. The groundwater dynamics and recharge were assessed using isotope techniques, revealing flow directions and sources. The study found that groundwater in the basin mainly originated from local rainfall and surface water. Additionally, parameters such as recharge rates and groundwater age were estimated.
HYDROGEOLOGY JOURNAL
(2022)
Article
Water Resources
Le Van Muoi, Chotpantarat Srilert, Van Pham Dang Tri, Toan Pham Van
Summary: The study focuses on investigating the pollution extent of Ganh Hao River in the Vietnamese Mekong Delta region. By sampling the river seasonally, the study determines physicochemical parameters and heavy metal concentrations. The results show that the water quality is affected by tidal cycles and seasonality, with concentrations of nutrients and organic compounds exceeding the standards. However, the concentrations of heavy metals in the sediment are below the standard. Aquaculture practices and tidal regimes are identified as the main factors influencing water quality.
JOURNAL OF HYDROLOGY-REGIONAL STUDIES
(2022)
Review
Energy & Fuels
Sorranat Ratchawang, Srilert Chotpantarat, Sasimook Chokchai, Isao Takashima, Youhei Uchida, Punya Charusiri
Summary: This paper reviews the application of ground source heat pump (GSHP) systems in Southeast Asia and highlights the potential of GSHP systems in reducing emissions and electricity consumption in the tropical climates of Southeast Asia, despite the thermal imbalance issues caused by the dominance of cooling demand.
Article
Geosciences, Multidisciplinary
Sorranat Ratchawang, Srilert Chotpantarat, Pimchaya Charoenrojying
Summary: Groundwater in Thailand is commonly used for various purposes, but it can be contaminated and pose risks to the environment and human health. This study evaluated the leaching potential of atrazine, a commonly used herbicide in sugarcane fields, in the Song Phi Nong District. The findings showed that areas with sugarcane fields had high leaching potential due to the low adsorption capacity of the soil. The study also assessed the presence of nitrate in groundwater, which is an indicator of pesticide and herbicide leaching. The results revealed that some areas with high leaching potential were contaminated by high nitrate concentrations, primarily from human activities such as domestic wastewater. The AF/RF model used in this study can serve as a valuable tool for managing pesticide-contaminated groundwater and protecting human health and the environment.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Environmental Sciences
Wiyada Nilkarnjanakul, Pensri Watchalayann, Srilert Chotpantarat
Summary: Arsenic exposure was determined in 110 residents divided into two groups based on the WHO guidelines for arsenic in drinking water. Health risk assessment and identification of associated factors were conducted through face-to-face interviews. Elevated levels of urinary arsenic were found in 68.18% of participants exposed to contaminated groundwater, surpassing the normal value. The main factor influencing urinary arsenic levels was the contamination of groundwater.
Article
Engineering, Environmental
Rugkiet Chansorn, Srilert Chotpantarat, Pawee Klongvessa
Summary: This study applied a hydrological model to assess the occurrences of landslides in Thailand. The results showed that landslides were more likely to happen in 2017 compared to 2016 due to higher water volume. The study also revealed that slope stability was poor in steep slope areas and extended to gentler slope areas with more accumulated water. Therefore, it is recommended to establish landslide early warning systems in the steep slope areas of Huai Nam Phung Subbasin and monitor hydrological data for early warnings.
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
(2023)
Article
Environmental Sciences
Narongpon Sumdang, Srilert Chotpantarat, Kyung Hwa Cho, Nguyen Ngoc Thanh
Summary: The rapid expansion of urbanization has led to inadequate groundwater resources. To use groundwater more efficiently, a risk assessment of groundwater pollution is needed. This study used machine learning algorithms to identify areas at risk of arsenic contamination in Rayong coastal aquifers, Thailand and selected the best model based on model performance and uncertainty. The results showed that the Random Forest algorithm had the highest performance and the lowest uncertainty. The study's outcome can assist policymakers in managing groundwater quality and promoting sustainable use of groundwater resources.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2023)