Earth and environmental sciences library, Год журнала: 2024, Номер unknown, С. 305 - 330
Опубликована: Янв. 1, 2024
Язык: Английский
Water, Год журнала: 2024, Номер 16(3), С. 474 - 474
Опубликована: Янв. 31, 2024
Fitting probability distribution functions to observed data is the standard way compute future design floods, but may not accurately reflect projected pattern of extreme events related climate change. In applying latest coupled model intercomparison project (CMIP5 and CMIP6), this research investigates how likely it that precipitation changes in CMIP5 CMIP6 will affect both magnitude frequency flood analysis. GCM output from four modelling institutes CMIP5, with representative pathway concentration (RCP8.5) corresponding shared socioeconomic pathways (SSP585), were selected for historical periods, before was statistically downscaled cities by using delta, quantile mapping (QM), empirical (EQM). On basis performance evaluation, a rainfall-runoff hydrological developed stormwater management (SWMM) CMIPs CMIP6) horizons. The results reveal an unprecedented increase events, (historical) (future) projections. years 2070–2080 identified as experiencing most severe flooding.
Язык: Английский
Процитировано
8
Water Research X, Год журнала: 2024, Номер 27, С. 100299 - 100299
Опубликована: Дек. 27, 2024
Widespread polyethylene terephthalate microplastics (PET MPs) have played unintended role in nitrous oxide (N2O) turnovers (i.e., production and consumption) at wastewater treatment plants (WWTPs). Mainstream aerobic granular sludge (AGS) systems possess potentially strong N2O-sink capability, which may be reduced by PET MPs stress through altering N2O-contributing pathways, electron transfer, microbial community structures. In this study, the effects of with two common particle sizes effluent from WWTPs (0.1 0.5 mm) on N2O turnovers, pathways capability were systematically disclosed AGS a series biochemical tests molecular biological means to achieve goal carbon neutrality. The results indicated that 0.1 mm could more significantly stimulate inhibiting denitrifying metabolism, compared control systems. Specifically, slightly increased relative abundance Nitrosomonas, reducing yields via promoting hydroxylamine (NH2OH) oxidation pathway during nitrification. Also, inhibited transport system activities reductase, hindering reduction denitrification. Most importantly, apparently based ratio reductase gene nitrite gene.
Язык: Английский
Процитировано
7
Microorganisms, Год журнала: 2024, Номер 12(4), С. 703 - 703
Опубликована: Март 30, 2024
In this study, we developed a rapid and effective method for enriching the culture of nitrifying bioflocs (NBF) from aquacultural brackish water. The self-designed mixotrophic mediums with single or mixed addition sodium acetate, citrate, sucrose were used to investigate enrichment process nitrification efficiency NBF in small-scale reactors. results showed that an MLVSSs 1170.4 mg L-1 2588.0 successfully enriched period less than 16 days. citrate group performed fastest time 10 days, while had highest biomass ± 384.7 L-1. situ testing was achieved group, ammonia oxidation rate 1.45 0.34 N h-1, net 2.02 0.20 specific 0.72 0.14 g-1 h-1. Metagenomic sequencing revealed Nitrosomonas (0.0~1.0%) Nitrobacter (10.1~26.5%) dominant genera AOB NOB, respectively, both which relative abundances group. Linear regression analysis further demonstrated significantly positive linear relations between efficiencies bacterial gene abundance NBF. study provide efficient operation biofloc technology aquaculture systems, will promote its wide application modern intensive aquaculture.
Язык: Английский
Процитировано
5
Journal of Environmental Management, Год журнала: 2025, Номер 381, С. 125206 - 125206
Опубликована: Апрель 9, 2025
Язык: Английский
Процитировано
0
Frontiers in Environmental Science, Год журнала: 2024, Номер 12
Опубликована: Июль 17, 2024
This research analyzed the structure of microbial groups in sediment–water interface (SWI) and relationship between gene expression levels two typical pathogenic bacteria Escherichia coli Enterococcus , nutrient using modern biological techniques. The distribution at SWI revealed significantly higher content sediment compared to overlying water. According Fick’s first law, release flux indicated that PO 4 3− -P upper reaches reservoir was deposited from water, while rate NH + -N, addition sedimentation, greater than P. community primarily dominated by genera Methyloparacoccus Methylomonas Arenimonas . abundances E. were surface Pearson correlation analysis demonstrated had a significant positive with total nitrogen (TN) ( p < 0.05) phosphorus (TP) 0.05), whereas very TN TP 0.01).
Язык: Английский
Процитировано
0
Journal of Hazardous Materials, Год журнала: 2024, Номер 477, С. 135293 - 135293
Опубликована: Июль 22, 2024
Язык: Английский
Процитировано
0
Scientific Reports, Год журнала: 2024, Номер 14(1)
Опубликована: Окт. 5, 2024
Abstract In this study, experimental reactors for cathodic nitrogen plasma electrolysis were designed by the composition of galvanic (voltaic) and electrolytic cells with wide narrow connectors filled tap water agar solutions. The reactor can be used to simultaneously perform manage nitrification in acidic alkaline environments. According reactor’s performance, it installed on irrigation system depending soil pH fields delivering species that are effective growth. process was investigated choosing optimal a connector based different changes oxidation-reduction potential anode cathode sides. nitrite concentration changed directly ammonium nitrate concentrations side. It inversely side respectively. Nitrite decreased from 5.387 ppm connector, 0.326 20% solution, 0.314 30% solution increased 0 0.191 0.405 7.454
Язык: Английский
Процитировано
0
Earth and environmental sciences library, Год журнала: 2024, Номер unknown, С. 305 - 330
Опубликована: Янв. 1, 2024
Язык: Английский
Процитировано
0