Article
Engineering, Environmental
Jonathan King, Reza Ahmadian, Roger A. Falconer
Summary: In response to the environmental and health impacts of population growth and urbanization, legislative measures have been introduced globally, sparking interdisciplinary research. This paper focuses on improving understanding and simulating water quality, particularly in macro-tidal environments, using novel modeling approaches. Recommendations are made for the use of these approaches in future studies.
Article
Microbiology
Guillaume Bay, Conard Lee, Chiliang Chen, Navreet K. Mahal, Michael J. Castellano, Kirsten S. Hofmockel, Larry J. Halverson
Summary: The diversity of cropping systems affects the composition of soil microbial communities, particularly in the rhizosphere and endosphere. Diversified cropping systems recruit a more diverse bacterial community in the rhizosphere, while fungal species richness varies between different cropping systems.
Article
Soil Science
Isaac Balume, Birhanu Agumas, Mary Musyoki, Sven Marhan, Georg Cadisch, Frank Rasche
Summary: This study found that high decomposability organic residues applied to less acidic soils can promote proteolytic enzyme activities and affect the abundance of nitrifying bacteria populations. The positive relationship between proteolytic enzyme activities and the abundance of nitrifiers was more pronounced at later stages of the incubation period, indicating a potential niche specialization between ammonia-oxidizing bacteria (AOB) and ammonia-oxidizing archaea (AOA) depending on soil acidity and resource availability.
APPLIED SOIL ECOLOGY
(2022)
Article
Environmental Sciences
Nubia Patricia Marquez Fontalvo, Wendy Beatriz Morgado Gamero, Henry Alfonso Maury Ardila, Andres Felipe Pulgar Gonzalez, Claudete Gindri Ramos, Alexander Elias Parody Munoz
Summary: This study evaluated the efficiency of a bacterial consortium in removing nitrogen compounds from domestic wastewater and determined the optimal concentration. The results showed that the consortium effectively removed nitrate and could promote nitrification and denitrification processes in plants with similar conditions, without requiring investment in restructuring or design modification of the wastewater treatment plant.
WATER AIR AND SOIL POLLUTION
(2022)
Article
Environmental Sciences
Chang Zhao, Xiaoxiang He, Xiaoqian Dan, Mengqiu He, Jun Zhao, Han Meng, Zucong Cai, Jinbo Zhang
Summary: This study evaluated the effects of root exudates on soil dissolved organic matter (DOM), bacterial communities, and nitrogen transformation rates. The results showed that the presence of wheat significantly increased the composition of DOM in soil, particularly in nitrogen metabolism pathways. Wheat planting also led to changes in bacterial abundance and diversity, with soil DOM having a stronger influence on bacterial communities compared to soil available nutrients. It was found that N-transformation related bacteria were positively correlated with soil gross nitrification rate, indicating enhanced nitrogen transformation in both acidic and alkaline soils.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Yao Wang, Jingjie Lin, Fenfang Wang, Qing Tian, Yi Zheng, Nengwang Chen
Summary: Land use change and excessive nitrogen loading are threats to water bodies worldwide. This study investigates the role of hydrological connectivity in linking watershed land use, nitrogen biogeochemistry and river water quality. The results show that land use at hydrologically sensitive areas (HSAs) and watershed scales contribute similarly to river nitrogen variation, and agricultural land is the main factor affecting nitrate and nitrous oxide concentrations.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Environmental Sciences
Yiming Xue, Li Li, Shuanglin Dong, Qinfeng Gao, Xiangli Tian
Summary: This study found that different carbon sources significantly affect water quality, microbial community, and the growth and survival rate of Litopenaeus vannamei. Among them, PHBV has been proven to be a good alternative carbon source.
Review
Food Science & Technology
Lien Thi Kim Phan, Hoan Xuan Nguyen, Sarah De Saeger, Liesbeth Jacxsens, Mia Eeckhout, Frank Devlieghere
Summary: This study investigated the growth of Aspergillus flavus and Fusarium proliferatum on paddy and white rice. The results showed that the existing predictive models were not able to accurately describe the effects of temperature and water activity on fungal growth. New secondary models were developed, and the optimal growth rates were estimated to be at 0.99 aw/35 C for A. flavus and 0.99 aw/30 C for F. proliferatum. The multi-factorial cardinal and General Polynomial models were found to be the best models for describing the combined influence of water activity and temperature on fungal growth rate.
INTERNATIONAL JOURNAL OF FOOD MICROBIOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Amit Kumar, Santosh Subhash Palmate, Rituraj Shukla
Summary: Water quality indices and models play an important role in evaluating the water quality of freshwater bodies, but their predictions are often highly uncertain due to their site-specific nature. The formulation of models and indices remains a challenging and hot research topic in the scientific community. The inspiration for this Special Issue is to provide a platform for sharing research results and informing young minds worldwide to develop suitable models for understanding water quality and taking proactive measures.
APPLIED SCIENCES-BASEL
(2022)
Article
Engineering, Environmental
K. C. Bal Krishna, Arumugam Sathasivan, Maneesha P. Ginige
Summary: This study identified 31 putative pathogenic bacteria in laboratory and full-scale chloraminated water distribution systems, with Mycolicibacterium fortuitum and Pseudomonas aeruginosa being the predominant species. The study highlights the diverse abundance of pathogenic bacteria resilient towards chloramine and suggests that metagenomics surveillance of drinking water can serve as a rapid assessment and an early warning of outbreaks.
Article
Agronomy
Lidia Dzierzbicka-Glowacka, Dawid Dybowski, Maciej Janecki, Ewa Wojciechowska, Beata Szymczycha, Dawid Potrykus, Artur Nowicki, Adam Szymkiewicz, Piotr Zima, Beata Jaworska-Szulc, Stefan Pietrzak, Grazyna Pazikowska-Sapota, Dominika Kalinowska, Nicole Nawrot, Pawel Wielgat, Grazyna Dembska, Karolina Matej-Lukowicz, Katarzyna Szczepanska, Tadeusz Puszkarczuk
Summary: The changes in marine coastal zones are of great significance due to the increasing human population living in these areas. This study presents an innovative toolkit that allows researchers to identify and assess the sources of nutrient and pesticide pollution, calculate their flux, and evaluate their influence on the coastal ecosystem.
AGRICULTURAL WATER MANAGEMENT
(2022)
Article
Environmental Sciences
Julie Terry, John-Mark Davies, Karl-Erich Lindenschmidt
Summary: Water quality models were used to assess the impact of different flow scenarios on the water quality of Buffalo Pound Lake. The results showed greater variation among scenarios in wet years, suggesting that water transfer should be conducted when local watershed runoff is minimal.
Article
Fisheries
Hai-Hong Huang, Ting Luo, Yan-Ju Lei, Wei-Qi Kuang, Wan-Sheng Zou, Pin-Hong Yang
Summary: This study indicated that acceptable growth performance of Penaeus vannamei postlarvae and water quality could be achieved in a reusing-water biofloc system under low salinity conditions. However, the nitrogenous load was slightly high and should be further studied to reduce it.
AQUACULTURE REPORTS
(2021)
Article
Environmental Sciences
Yihong Yue, Ling Cai, Yi Tang, Yuanyuan Zhang, Ming Yang, Fushun Wang
Summary: The study found that bacterial distribution in thermally stratified water bodies is influenced by factors such as water depth, total nitrogen, nitrate, water temperature, and dissolved oxygen levels, resulting in significant vertical variations in bacterial community structure. HJD Reservoir and WJD Reservoir showed marked differences in bacterial community structure and functional variation during thermal stratification, with Pseudomonas frequently detected at the bottom of HJD Reservoir.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2021)
Article
Engineering, Environmental
Seow Wah How, Tadashi Shoji, Chee Keong Tan, Thomas P. Curtis, Adeline Seak May Chua
Summary: This study simulated and calibrated the low-DO OA process in tropical wastewater treatment plants based on the ASM1 model, revealing that the microbes in the low-DO OA SBR had lower growth rates and affinities, supporting the proliferation of nitrifiers under low-dissolved-oxygen conditions. The research emphasizes the importance of using suitable parameters in the design of wastewater treatment plants in tropical regions.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
