Effect of Calcium and Phosphorus on Ammonium and Nitrate Nitrogen Adsorption onto Iron (Hydr)oxides Surfaces: CD-MUSIC Model and DFT Computation
This study employed batch adsorption experiments, charge distribution and multi-site complexation (CD-MUSIC) models and density functional theory (DFT) calculations to elucidate the mechanism by which Ca2+ and PO43- affect the adsorption of NH4+-N and NO3--N on the goethite (GT) surface. The results showed that the adsorption of NH4+-N on the GT exhibited an initial increase followed by a decrease as pH increased, peaking at a pH of 8.5. Conversely, the adsorption of NO3--N decreased with rising pH. According to the CD-MUSIC model, Ca2+ minimally affected the NH4+-N adsorption on the GT but enhanced NO3--N adsorption via e...
Source: Chemosphere - April 19, 2024 Category: Chemistry Authors: Mengke Jia Jie Ma Qiongqiong Zhou Lijie Liu Xiaolei Jie Hongen Liu Shiyu Qin Chang Li Fuqing Sui Haichao Fu Haijiao Xie Long Wang Peng Zhao Source Type: research
Fe(II)-driven spatiotemporal assembly of heterotrophic and anammox bacteria enhances simultaneous nitrogen and phosphorus removal for low-strength municipal wastewater
This study provided a comprehensive sight into the function of Fe(Ⅱ) in mainstream PD/A process, and explored a promising alternative for synergetic nitrogen and phosphorus removal for low-strength municipal wastewater treatment.PMID:38641305 | DOI:10.1016/j.biortech.2024.130713 (Source: Bioresource Technology)
Source: Bioresource Technology - April 19, 2024 Category: Biotechnology Authors: Yongxing Chen Chuchu Zhang Zhenguo Chen Yuchun Yang Zhiman Lin Zexi Deng Xiaojun Wang Source Type: research
Constructing B ─N─P Bonds in Ultrathin Holey g‐C3N4 for Regulating the Local Chemical Environment in Photocatalytic CO2 Reduction to CO
This study provides insights into the mechanism of charge carrier dynamics and active site determination, contributing to the understanding of the photocatalytic CO2RR mechanism. (Source: Small)
Source: Small - April 19, 2024 Category: Nanotechnology Authors: Mahmoud Kamal Hussien,
Amr Sabbah,
Mohammad Qorbani,
Raghunath Putikam,
Septia Kholimatussadiah,
Der ‐Lii M. Tzou,
Mohamed Hammad Elsayed,
Yu‐Jung Lu,
Yen‐Yu Wang,
Xing‐Hao Lee,
Tsai‐Yu Lin,
Nguyen Quoc Thang,
Heng‐Liang Wu,
Shu Tags: Research Article Source Type: research
Molecules, Vol. 29, Pages 1869: Characterization and Flame-Retardant Properties of Cobalt-Coordinated Cyclic Phosphonitrile in Thermoplastic Polyurethane Composites
g
Xu
Liu
Halogen-free organophosphorus flame retardants have promising application prospects due to their excellent safety and environmental protection properties. A cobalt-coordinated cyclic phosphonitrile flame retardant (Co@CPA) was synthesized via a hydrothermal method using hexachlorocyclotriphosphonitrile (HCCP), 5-amino-tetrazolium (5-AT), and cobalt nitrate hexahydrate (Co(NO3)2∙6H2O) as starting materials. The structure was characterized using Fourier transform infrared (FTIR), nuclear magnetic resonance spectroscopy (1H-NMR), scanning electron microscopy (SEM), and thermogravimetric analys...
Source: Molecules - April 19, 2024 Category: Chemistry Authors: Zeng Xu Li Xiong Ding Xu Liu Tags: Article Source Type: research
Radiofrequency Ablation of Parathyroid Adenoma: Results of a Retrospective Analysis of 60 Patients
ConclusionOur study showed that RFA with the alternative technique, called “Nik jet dissection” is a safe and effective modality in management of PTA. Therefore, we suggest expanding the indications for RFA in PTA management, especially when surgery is not feasible.Level of EvidenceLevel 3, Local non-random sample.Graphical Abstract (Source: CardioVascular and Interventional Radiology)
Source: CardioVascular and Interventional Radiology - April 19, 2024 Category: Radiology Source Type: research
A potent bioreducible ionizable lipid nanoparticle enables siRNA delivery for retinal neovascularization inhibition
Eur J Pharm Biopharm. 2024 Apr 16:114296. doi: 10.1016/j.ejpb.2024.114296. Online ahead of print.ABSTRACTSmall interfering RNA (siRNA) is emerging as a promising treatment for retinal neovascularization due to its specific inhibition of the expression of target genes. However, the clinical translation of siRNA drugs is hindered by the efficiency and safety of delivery vectors. Here, we describe the properties of a new bioreducible ionizable lipid nanoparticle (LNP) 2N12H, which is based on a rationally designed novel ionizable lipid called 2N12B. 2N12H exhibited degradation in response to the mimic cytoplasmic glutathione ...
Source: European Journal of Pharmaceutics and Biopharmaceutics - April 18, 2024 Category: Drugs & Pharmacology Authors: Xiaowen Cao Lili Su Hao Chen Source Type: research
Molecules, Vol. 29, Pages 1841: Synthesis and Structural Studies of peri-Substituted Acenaphthenes with Tertiary Phosphine and Stibine Groups
Petr Kilian
Two mixed peri-substituted phosphine-chlorostibines, Acenap(PiPr2)(SbPhCl) and Acenap(PiPr2)(SbCl2) (Acenap = acenaphthene-5,6-diyl) reacted cleanly with Grignard reagents or nBuLi to give the corresponding tertiary phosphine-stibines Acenap(PiPr2)(SbRR’) (R, R’ = Me, iPr, nBu, Ph). In addition, the Pt(II) complex of the tertiary phosphine-stibine Acenap(PiPr2)(SbPh2) as well as the Mo(0) complex of Acenap(PiPr2)(SbMePh) were synthesised and characterised. Two of the phosphine-stibines and the two metal complexes were characterised by single-crystal X-ray diffraction. The peri-...
Source: Molecules - April 18, 2024 Category: Chemistry Authors: Laurence J. Taylor Emma E. Lawson David B. Cordes Kasun S. Athukorala Arachchige Alexandra M. Z. Slawin Brian A. Chalmers Petr Kilian Tags: Article Source Type: research
Nitrogen and phosphorus co-doped carbon point modified 2D/2D (001)TiO2/Ti3C2Tx heterostructures for highly efficient photocatalytic degradation of antibiotics in water
New J. Chem., 2024, Advance Article DOI: 10.1039/D4NJ00621F, PaperTing Li, Qianqian Zou, Junhai Wang, Qiang Li, Yumu Zhou, Yulan Tang The synergistic photocatalysis effect of (001)TiO2/Ti3C2Tx modified by NPCDs. To cite this article before page numbers are assigned, use the DOI form of citation above. The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - New J. Chem. latest articles)
Source: RSC - New J. Chem. latest articles - April 17, 2024 Category: Chemistry Authors: Ting Li Source Type: research
The Role of Edible Bulbous Layers on Macro, Micro, and Heavy Metal Contents of Leek (Allium porrum) Plant
In this study, the degree of accumulation of biogenic element and heavy metal contents of different parts and edible layers of leeks cultivated in Konya in Turkey was revealed. The amounts of P and K of leek were determined from 154.69 (leaf top of leek) and 985.05 mg/kg (root of leek) to 1377.63 (onion part of leek) and 2688.50 mg/kg (root of leek), respectively. P and K contents of leek layers changed from 139.45 (1st layer) and 446.63 mg/kg (7th layer) to 1596.69 (2nd layer) and 2201.53 mg/kg (4th layer), respectively. While Ca amounts of leek parts vary between 577.09 (leaf of leek) and 666.87 mg/kg (root of leek), Mg ...
Source: Biological Trace Element Research - April 17, 2024 Category: Biology Authors: Fahad AlJuhaimi Duygu Ak çay Kulluk Isam A Mohamed Ahmed Fatma G ökmen Yılmaz Emad Karrar Mehmet Musa Özcan Source Type: research
Characteristic and mechanism of biological nitrogen and phosphorus removal facilitated by biogenic manganese oxides (BioMnOx) at various concentrations of Mn(II)
Environ Res. 2024 Apr 15:118943. doi: 10.1016/j.envres.2024.118943. Online ahead of print.ABSTRACTBiogenic manganese oxides (BioMnOx) have attracted considerable attention as active oxidants, adsorbents, and catalysts. However, characteristics and mechanisms of nitrification-denitrification in biological redox reactions mediated by different concentrations of BioMnOx are still unclear. Fate of nutrients (e.g., NH4+-N, TP, NO3--N) and COD were investigated through different concentrations of BioMnOx produced by Mn(II) in the moving bed biofilm reactor (MBBR). 34% and 89.2%, 37.8% and 89.8%, 57.3% and 88.9%, and 62.1% and 90...
Source: Environmental Research - April 17, 2024 Category: Environmental Health Authors: Ying Cao Sicheng Shao Zhiqing Ye Chunxiao Wang Dandan Pan Xiangwei Wu Source Type: research
Metabolomic reveals the responses of sludge properties and microbial communities to high nitrite stress in denitrifying phosphorus removal systems
Environ Res. 2024 Apr 15:118924. doi: 10.1016/j.envres.2024.118924. Online ahead of print.ABSTRACTNitrite, as an electron acceptor, plays a good role in denitrifying phosphorus removal (DPR); however, high nitrite concentration has adverse affects on sludge performance. We investigated the precise mechanisms of responses of sludge to high nitrite stress, including surface characteristics, intracellular and extracellular components, microbial and metabolic responses. When the nitrite stress reached 90 mg/L, the sludge settling performance was improved, but the activated sludge was aging. FTIR and XPS analysis revealed a sig...
Source: Environmental Research - April 17, 2024 Category: Environmental Health Authors: Rongrong Hou Jiandong Liu Peng Yang Haijun Liu Rongfang Yuan Ying Ji Hongfei Zhao Zhongbing Chen Beihai Zhou Huilun Chen Source Type: research
Characteristic and mechanism of biological nitrogen and phosphorus removal facilitated by biogenic manganese oxides (BioMnOx) at various concentrations of Mn(II)
Environ Res. 2024 Apr 16;252(Pt 2):118943. doi: 10.1016/j.envres.2024.118943. Online ahead of print.ABSTRACTBiogenic manganese oxides (BioMnOx) have attracted considerable attention as active oxidants, adsorbents, and catalysts. However, characteristics and mechanisms of nitrification-denitrification in biological redox reactions mediated by different concentrations of BioMnOx are still unclear. Fate of nutrients (e.g., NH4+-N, TP, NO3--N) and COD were investigated through different concentrations of BioMnOx produced by Mn(II) in the moving bed biofilm reactor (MBBR). 34% and 89.2%, 37.8% and 89.8%, 57.3% and 88.9%, and 62...
Source: Environmental Research - April 17, 2024 Category: Environmental Health Authors: Ying Cao Sicheng Shao Zhiqing Ye Chunxiao Wang Dandan Pan Xiangwei Wu Source Type: research
Metabolomic reveals the responses of sludge properties and microbial communities to high nitrite stress in denitrifying phosphorus removal systems
Environ Res. 2024 Apr 15;252(Pt 2):118924. doi: 10.1016/j.envres.2024.118924. Online ahead of print.ABSTRACTNitrite, as an electron acceptor, plays a good role in denitrifying phosphorus removal (DPR); however, high nitrite concentration has adverse affects on sludge performance. We investigated the precise mechanisms of responses of sludge to high nitrite stress, including surface characteristics, intracellular and extracellular components, microbial and metabolic responses. When the nitrite stress reached 90 mg/L, the sludge settling performance was improved, but the activated sludge was aging. FTIR and XPS analysis reve...
Source: Environmental Research - April 17, 2024 Category: Environmental Health Authors: Rongrong Hou Jiandong Liu Peng Yang Haijun Liu Rongfang Yuan Ying Ji Hongfei Zhao Zhongbing Chen Beihai Zhou Huilun Chen Source Type: research
The Role of Edible Bulbous Layers on Macro, Micro, and Heavy Metal Contents of Leek (Allium porrum) Plant
In this study, the degree of accumulation of biogenic element and heavy metal contents of different parts and edible layers of leeks cultivated in Konya in Turkey was revealed. The amounts of P and K of leek were determined from 154.69 (leaf top of leek) and 985.05 mg/kg (root of leek) to 1377.63 (onion part of leek) and 2688.50 mg/kg (root of leek), respectively. P and K contents of leek layers changed from 139.45 (1st layer) and 446.63 mg/kg (7th layer) to 1596.69 (2nd layer) and 2201.53 mg/kg (4th layer), respectively. While Ca amounts of leek parts vary between 577.09 (leaf of leek) and 666.87 mg/kg (root of leek), Mg ...
Source: Biological Trace Element Research - April 17, 2024 Category: Biology Authors: Fahad AlJuhaimi Duygu Ak çay Kulluk Isam A Mohamed Ahmed Fatma G ökmen Yılmaz Emad Karrar Mehmet Musa Özcan Source Type: research
Effects of Streptomyces sp. HU2014 inoculation on wheat growth and rhizosphere microbial diversity under hexavalent chromium stress
Ecotoxicol Environ Saf. 2024 Apr 15;276:116313. doi: 10.1016/j.ecoenv.2024.116313. Online ahead of print.ABSTRACTWheat (Triticum aestivum L.) is a major foodstuff for over 40% of the world's population. However, hexavalent chromium [Cr(VI)] in contaminated soil significantly affects wheat production and its ecological environment. Streptomyces sp. HU2014 was first used to investigate the effects of Cr (VI) stress on wheat growth. We analyzed the Cr(VI) concentration, physicochemical properties of wheat and soil, total Cr content, and microbial community structures during their interactions. HU2014 reduced the toxicity of C...
Source: Ecotoxicology and Environmental Safety - April 16, 2024 Category: Environmental Health Authors: Hongxia Zhu Linfeng Hu Yunlong Wang Peipei Mei Feng Zhou Tetiana Rozhkova Chengwei Li Source Type: research
