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1. Research progress and application prospect of anaerobic biological phosphorus removal

Author:
Yang, Fengxia; Zhang, Chaosheng; Rong, Hongwei; Cao, Yongfeng
Source:
Applied microbiology and biotechnology 2019 v.103 no.5 pp. 2133-2139
ISSN:
0175-7598
Subject:
phosphorus,   etc   ; phosphates; thermodynamics; wastewater;     Show all 4 Subjects
Abstract:
... Anaerobic biological phosphorus removal has proposed a new direction for the removal of phosphorus from wastewater, and the discovery of phosphate reduction makes people have a more comprehensive understanding of microbial phosphorus cycling. Here, from the perspective of thermodynamics, the bioreduction reaction of phosphate was analyzed and its mechanism was discussed. The research progress of p ...
DOI:
10.1007/s00253-019-09634-0

2. Assessment of sediment capping with zirconium-modified bentonite to intercept phosphorus release from sediments

Author:
Lin, Jianwei; He, Siqi; Zhan, Yanhui; Zhang, Zhe; Wu, Xiaolong; Yu, Yang; Zhao, Yuying; Wang, Yan
Source:
Environmental science and pollution research international 2019 v.26 no.4 pp. 3501-3516
ISSN:
0944-1344
Subject:
phosphorus,   etc   ; bentonite; sediments;     Show all 3 Subjects
Abstract:
... Three different types of zirconium-modified bentonites (ZrMBs) including zirconium-modified original bentonite (ZrMOB), zirconium-modified magnesium-pretreated bentonite (ZrMMgB), and zirconium-modified calcium-pretreated bentonite (ZrMCaB) were synthesized and used as active covering materials to suppress the release of phosphorus (P) from sediments. To assess the covering efficiency of ZrMBs to ...
DOI:
10.1007/s11356-018-3869-y

3. Correction: High capacity potassium-ion battery anodes based on black phosphorus

Author:
Sultana, Irin; Rahman, Md Mokhlesur; Ramireddy, Thrinathreddy; Chen, Ying; Glushenkov, Alexey M.
Source:
Journal of materials chemistry A 2019 v.7 no.5 pp. 2421
ISSN:
2050-7496
Subject:
phosphorus,   etc   ; anodes; batteries; chemistry;     Show all 4 Subjects
Abstract:
... Correction for ‘High capacity potassium-ion battery anodes based on black phosphorus’ by Irin Sultana et al., J. Mater. Chem. A, 2017, 5, 23506–23512. ...
DOI:
10.1039/c9ta90016k

4. Dibenzo[b,e]phosphindolizines synthesized by a ring-closing metathesis of benzo[b]phospholes with two vinyl tethers

Author:
Tsurusaki, Akihiro; Matsumoto, Hiroyo; Kamikawa, Ken
Source:
Chemical communications 2019 v.55 no.34 pp. 4909-4912
ISSN:
1364-548X
Subject:
phosphorus,   etc   ; chemical compounds; chemical reactions;     Show all 3 Subjects
Abstract:
... Dibenzo[b,e]phosphindolizines 1 were successfully synthesized by a ring-closing metathesis of benzo[b]phosphole chalcogenides 2a–2c with two vinyl tethers (for chalcogen analogs 1a–1c), and by a deselenization reaction (for lone-pair analog 1d). The structures, properties, and bowl inversion derived from a phosphorus atom were fully investigated. ...
DOI:
10.1039/c9cc00463g

5. Recent advances in oxidation and degradation mechanisms of ultrathin 2D materials under ambient conditions and their passivation strategies

Author:
Li, Qiang; Zhou, Qionghua; Shi, Li; Chen, Qian; Wang, Jinlan
Source:
Journal of materials chemistry A 2019 v.7 no.9 pp. 4291-4312
ISSN:
2050-7496
Subject:
phosphorus,   etc   ; nanomaterials; oxidation; physicochemical properties;     Show all 4 Subjects
Abstract:
... Graphene-like two-dimensional (2D) nanomaterials, such as transition metal dichalcogenides (TMDCs) and black phosphorus (BP), have been extensively studied in the recent years due to their numerous and unusual physical and chemical properties that are introduced when charge and heat transports are confined to a plane. However, many 2D materials with atomic-scale thicknesses suffer from oxidation a ...
DOI:
10.1039/c8ta10306b

6. Conversion of methane to ethylene using an Ir complex and phosphorus ylide as a methylene transfer reagent

Author:
Zatsepin, Pavel; Ahn, Seihwan; Pudasaini, Bimal; Gau, Michael R.; Baik, Mu-Hyun; Mindiola, Daniel J.
Source:
Chemical communications 2019 v.55 no.13 pp. 1927-1930
ISSN:
1364-548X
Subject:
phosphorus,   etc   ; chemical reactions; ethylene; methane;     Show all 4 Subjects
Abstract:
... Cp*(Me₃P)Ir(CH₃)(OTf), a complex known to reversibly activate CH₄ and other hydrocarbons under mild conditions, reacts with the phosphorus ylide H₂CPPh₃ in THF to afford two major species [Cp*(Me₃P)(Ph₃P)Ir(CH₂CH₃)][OTf] and [Cp*(Me₃P)Ir(H)(η²-CH₂CH₂)][OTf]. Insertion of the ylide methylene group can also occur with Cp*(Me₃P)Ir(Ph)(OTf) to afford the benzyl [Cp*(Me₃P)(Ph₃P)Ir(CH₂Ph)][OTf]. Theoret ...
DOI:
10.1039/c8cc08761j

7. Characterization of phosphorus accumulation and release using diffusive gradients in thin films (DGT) - linking the watershed to Taihu Lake, China

Author:
Tao, Yu; Dan, Dai; Xuejiao, Han; Changda, He; Guo, Fu; Fengchang, Wu
Source:
The Science of the total environment 2019 v.673 pp. 347-356
ISSN:
0048-9697
Subject:
phosphorus fertilizers; reactive phosphorus; total phosphorus,   etc   ; eutrophication; fertilizer application; lakes; land use; pH; rapid methods; sediments; soil; watersheds; wheat; China;     Show all 14 Subjects
Abstract:
... Taihu Lake is well known internationally due to its algae bloom, and phosphorus fertilization and accumulation in the watershed soil played an important role in the lake eutrophication. To explore the linkage between soil and sediment legacy P, the soils from four representative land uses in the upstream watershed and sediments from typical lake areas were sampled and analyzed for P species. Meanw ...
DOI:
10.1016/j.scitotenv.2019.04.102

8. Distribution and release of phosphorus fractions associated with soil aggregate structure in restored wetlands

Author:
Cui, Hu; Ou, Yang; Wang, Lixia; Wu, Haitao; Yan, Baixing; Li, Yingxin
Source:
Chemosphere 2019 v.223 pp. 319-329
ISSN:
0045-6535
Subject:
inorganic phosphorus; organic phosphorus; total phosphorus,   etc   ; calcium; ecosystems; eutrophication; iron; paddies; risk; soil aggregates; sorption isotherms; wetlands;     Show all 12 Subjects
Abstract:
... Phosphorus, a dominating element responsible for eutrophication, is a potential limiting nutrient in wetland ecosystem. In this study, the release risk of phosphorus was evaluated by investigating the distribution of phosphorus fractions in different grain-sizes of soil aggregates in wetlands with restoration durations of 1, 2, 3, 5, 13 or 19 years. The results showed that the soil aggregate struc ...
DOI:
10.1016/j.chemosphere.2019.02.046

9. Phosphorus fractionation in surface water and sediments of industrially polluted freshwater reservoir, India

Author:
Kumar, Bijendra; Anshumali,
Source:
Chemistry in ecology 2019 v.35 no.3 pp. 219-234
ISSN:
1029-0370
Subject:
phosphorus; total dissolved phosphorus; total particulate phosphorus,   etc   ; biogeochemical cycles; fractionation; freshwater; iron; pollution load; sediments; surface water; India;     Show all 11 Subjects
Abstract:
... Industrial pollutions are responsible for alterations in biogeochemical cycling of phosphorus (P) in freshwater systems. The objectives of the present study were to quantify the major P forms and assess the relationship between P fractions in water and surface sediments of Govind Ballabh Pant Sagar (GBPS) reservoir, India. Surface water samples (n = 48) and surface sediment samples (n = 48) were c ...
DOI:
10.1080/02757540.2018.1554058

10. Zinc nutrition of wheat in response to application of phosphorus to a calcareous soil and an acid soil

Author:
Chen, Xiu-Xiu; Zhang, Wei; Wang, Qian; Liu, Yu-Min; Liu, Dun-Yi; Zou, Chun-Qin
Source:
Plant and soil 2019 v.434 no.1-2 pp. 139-150
ISSN:
0032-079X
Subject:
phosphorus; phosphorus fertilizers; phosphorus pentoxide,   etc   ; acid soils; calcareous soils; crops; fertilizer rates; greenhouse experimentation; nutrition; roots; shoots; wheat; zinc;     Show all 13 Subjects
Abstract:
... BACKGROUND AND AIMS: Although phosphorus (P) application is known to affect the zinc (Zn) nutrition of crops, the underlying mechanisms and effects of soil type are unclear. METHODS: A greenhouse pot experiment was conducted with wheat, two soils (calcareous and acid), and nine P fertilizer rates (0, 50, 100, 200, 400, 1000, 2000, 3000, and 5000 mg P₂O₅ kg⁻¹ soil). RESULTS: The effects of P applic ...
DOI:
10.1007/s11104-018-3820-5

11. Potentials and challenges of phosphorus recovery as vivianite from wastewater: A review

Author:
Wu, Yang; Luo, Jingyang; Zhang, Qin; Aleem, Muhammad; Fang, Fang; Xue, Zhaoxia; Cao, Jiashun
Source:
Chemosphere 2019 v.226 pp. 246-258
ISSN:
0045-6535
Subject:
phosphorus,   etc   ; chemistry; economic valuation; engineering; sludge; wastewater;     Show all 6 Subjects
Abstract:
... Due to the shortage of phosphorus resources and the limitations of existing phosphorus recovery methods, phosphorus recovery in the form of vivianite has attracted considerable attention with its natural ubiquity, easy accessibility and foreseeable economic value. This review systematically summarizes the chemistry of vivianite, including the characteristics, formation process and influencing fact ...
DOI:
10.1016/j.chemosphere.2019.03.138

12. Model-based opti mization of phosphorus management strategies in Sur WWTP, Madrid

Author:
Lizarralde, I.; Fernández-Arévalo, T.; Manas, A.; Ayesa, E.; Grau, P.
Source:
Water research 2019 v.153 pp. 39-52
ISSN:
0043-1354
Subject:
phosphorus,   etc   ; mathematical models; pollutants; wastewater; wastewater treatment;     Show all 5 Subjects
Abstract:
... Phosphorus has been considered as a pollutant to be removed from the wastewater. In the last years, however, it has been considered a valuable asset that needs to be recovered due to its shortage in nature. The study of optimum phosphorus management in wastewater treatment plants is not straightforward, due to the complexity of technologies and configurations that may be applied for phosphorus rem ...
DOI:
10.1016/j.watres.2018.12.056

13. Flavonol Polymer Technology for Encapsulation of Liquid Phosphorus Fertilizers for Enabling A Slow-Release Process in Soil to Extend Usability and Reduce Leaching

Author:
Masri, Zuhair; Wilhm, Jerry; Underwood, Christopher C.; Bancroft, Nicholas T.; Eccleton, Jay
Source:
Communications in soil science and plant analysis 2019 v.50 no.7 pp. 795-810
ISSN:
1532-2416
Subject:
dissolved phosphorus; phosphorus; phosphorus fertilizers,   etc   ; ammonium polyphosphates; encapsulation; fertilizer application; flavonols; leaching; liquid fertilizers; liquids; nutrients; orthophosphates; phosphorus pentoxide; planting; polymers; soil depth; soil solution;     Show all 17 Subjects
Abstract:
... A proprietary Flavonol Polymer Technology (FPT), designed by AgroLiquid, is an agent for encapsulating different chemistries on the polymer by impregnation to provide extended release of nutrients and optimize yield. Based on FPT, FPT-Product (Pro-Germinator®) a 9-24-3 (% N, % P₂O₅, and % K₂O w/w) manufactured to slow the phosphorus release process in soil and extends its usability by the plant. P ...
DOI:
10.1080/00103624.2019.1581796

14. 2-Dopyl-1,4-di(2-dopylpropanoyl)benzene, an effective phosphorus flame retardant

Author:
Howell, Bob A.; Alrubayyi, Aeshah
Source:
Polymer degradation and stability 2019 v.162 pp. 196-200
ISSN:
0141-3910
Subject:
phosphorus,   etc   ; carbon; epoxides; flame retardants; organophosphorus compounds;     Show all 5 Subjects
Abstract:
... Organophosphorus compounds provide great potential as replacements for traditional organohalogen flame retardants. Compounds containing the 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) unit may be especially important. 2-Dopyl-1,4-di(2-dopylpropanoy)benzene contains three dopyl units (>10% P) all bound through carbon. It displays excellent flame retardancy in DGEBA epoxy resin. ...
DOI:
10.1016/j.polymdegradstab.2018.12.017

15. Material Design of Green-Light-Emitting Semiconductors: Perovskite-Type Sulfide SrHfS₃

Author:
Hanzawa, Kota; Iimura, Soshi; Hiramatsu, Hidenori; Hosono, Hideo
Source:
Journal of the American Chemical Society 2019 v.141 no.13 pp. 5343-5349
ISSN:
1520-5126
Subject:
phosphorus,   etc   ; cations; electrical conductivity; lanthanum; photoluminescence; semiconductors;     Show all 6 Subjects
Abstract:
... A current issue facing light-emitting devices is a missing suitable material for green emission. To overcome this, we explore semiconductors possessing (i) a deep conduction band minimum (CBM) and a shallow valence band maximum (VBM), (ii) good controllability of electronic conductivity and carrier polarity, and (iii) a directly allowed band gap corresponding to green emission. We focus on early t ...
DOI:
10.1021/jacs.8b13622

16. Wet Chemical Method for Black Phosphorus Thinning and Passivation

Author:
Fan, Shuangqing; Qiao, JingSi; Lai, Jiawei; Hei, Haicheng; Feng, Zhihong; Zhang, Qiankun; Zhang, Daihua; Wu, Sen; Hu, Xiaodong; Sun, Dong; Ji, Wei; Liu, Jing
Source:
ACS applied materials & interfaces 2019 v.11 no.9 pp. 9213-9222
ISSN:
1944-8252
Subject:
phosphorus,   etc   ; industrial applications; materials science; solvents; transistors;     Show all 5 Subjects
Abstract:
... Layered black phosphorus (BP) has been expected to be a promising material for future electronic and optoelectronic applications since its discovery. However, the difficulty in mass fabricating layered air-stable BP severely obstructs its potential industry applications. Here, we report a new BP chemical modification method to implement all-solution-based mass production of layered air-stable BP. ...
DOI:
10.1021/acsami.8b21655

17. Performance and Stability of a Dynamically controlled EBPR Anaerobic/Aerobic Granular Sludge Reactor

Author:
De Vleeschauwer, Flinn; Caluwé, Michel; Dobbeleers, Thomas; Stes, Hannah; Dockx, Lennert; Kiekens, Filip; D'aes, Jolien; Copot, Cosmin; Dries, Jan
Source:
Bioresource technology 2019
ISSN:
0960-8524
Subject:
phosphorus,   etc   ; chemical oxygen demand; sludge; wastewater;     Show all 4 Subjects
Abstract:
... Treatment of rapidly varying wastewaters in anaerobic/aerobic aerobic granular sludge (AGS) systems remains problematic. This study investigated AGS formation and the impact of varying COD and phosphorus concentrations on an enhanced biological phosphorus removal (EBPR) AGS SBR with a conductivity based anaerobic and OUR based aerobic dynamically controlled step. Phase 1 investigated the developme ...
DOI:
10.1016/j.biortech.2019.02.052

18. Monolayer black phosphorus by sequential wet-chemical surface oxidation

Author:
Wild, Stefan; Lloret, Vicent; Vega-Mayoral, Victor; Vella, Daniele; Nuin, Edurne; Siebert, Martin; Koleśnik-Gray, Maria; Löffler, Mario; Mayrhofer, Karl J. J.; Gadermaier, Christoph; Krstić, Vojislav; Hauke, Frank; Abellán, Gonzalo; Hirsch, Andreas
Source:
RSC advances 2019 v.9 no.7 pp. 3570-3576
ISSN:
2046-2069
Subject:
phosphorus,   etc   ; ionic liquids; photooxidation; solubilization; transistors;     Show all 5 Subjects
Abstract:
... We report a straightforward chemical methodology for controlling the thickness of black phosphorus flakes down to the monolayer limit by layer-by-layer oxidation and thinning, using water as solubilizing agent. Moreover, the oxidation process can be stopped at will by two different passivation procedures, namely the non-covalent functionalization with perylene diimide chromophores, which prevents ...
DOI:
10.1039/c8ra09069f

19. Nexus of water, energy and ecosystems in the upper Mekong River: A system analysis of phosphorus transport through cascade reservoirs

Author:
Chen, Xiaoxian; Xu, Bo; Zheng, Yi; Zhang, Chi
Source:
The Science of the total environment 2019 v.671 pp. 1179-1191
ISSN:
0048-9697
Subject:
phosphorus; total phosphorus,   etc   ; dynamic models; ecosystems; energy; politics; rivers; water power; watersheds; Mekong River;     Show all 10 Subjects
Abstract:
... The nexus of water, energy and ecosystems in the context of large-scale hydropower development is of worldwide concern; however, few quantitative studies have been conducted based on dynamic modeling. This study develops a system modeling approach to address the water-energy-ecosystem (WEE) nexus associated with the operation of cascade reservoirs. The approach couples multiobjective reservoir ope ...
DOI:
10.1016/j.scitotenv.2019.03.324

20. Multi-decadal trajectories of phosphorus loading, export, and instream retention along a catchment gradient

Author:
Westphal, Katja; Graeber, Daniel; Musolff, Andreas; Fang, Yu; Jawitz, James W.; Borchardt, Dietrich
Source:
The Science of the total environment 2019 v.667 pp. 769-779
ISSN:
0048-9697
Subject:
phosphorus; total phosphorus,   etc   ; chlorophyll; data collection; ecosystems; eutrophication; monitoring; pollution load; risk; rivers; watersheds; weirs; Germany;     Show all 13 Subjects
Abstract:
... Phosphorus inputs to many rivers have been reduced in recent decades to mitigate the damaging effects of eutrophication. However, reductions in total phosphorus (TP) inputs rarely correspond with ecological improvements of the river ecosystem. We analyzed a unique weekly long-term data set ranging from 1966 to 2013, covering seven monitoring sites in the Ruhr River in Germany. We identified the re ...
DOI:
10.1016/j.scitotenv.2019.02.428