Anammox process has attracted attention due to its excellent nitrogen removal properties in nitrogen-rich wastewater treatment. However, there were some obstacles for the application of anammox treat high saline sensitivity salinity. In this study, Fe(III) addition strategy was developed assist adapt surroundings, with defense mechanism involved Fe(III)-assisted emphasized. Nitrogen performance deteriorated at 3.5% salinity, average total rate 0.85 kg/(m3·d) observed. The continuous could...

In this paper, ZnFe2 O4 , a visible light active photocatalyst, was comodified by graphene oxide (GO) and Ag nanoparticles (NPs) to form -Ag/rGO nanocomposite (NC) facile one-pot hydrothermal method. Reduction of GO formation occurred simultaneously during reaction. The photocatalytic activity the NC investigated under light, for degradation 17α-ethinylestradiol (EE2), nondye compound, which also is an emerging pollutant with endocrine-disrupting activity. pseudo rate constant (k')...

Selected by the conductive value change (Δ) caused generated proton in boric acid-polyol solutions, pyrocatechol (CL) and nitropyrocatechol (NCL) were grafted into mesoporous MCM-41 material for boron removal isotopic separation. The adsorption kinetics, isotherms thermodynamics, effect of pH, mechanism, regeneration, separation performance on new materials explored this study. equilibrium was reached within 10 h, with maximum capacity reaching up to 1.799 mmol g–1 CL-MCM-41 at pH 9 1.548...

The fast metal exchange reaction between Au38 and AgxAu38-x nanoclusters in solution at -20 °C has been studied by situ X-ray absorption spectroscopy (time resolved quick XAFS) transmission mode. A cell was designed for this purpose consisting of a cooling system, remote injection mixing devices. capability the set-up is demonstrated second minute time scale measurements upon Au38/toluene AgxAu38-x/toluene solutions both Ag K-edge Au L3-edge. It proposed that gold silver atoms clusters...

Abstract Background Public health interventions have been implemented to contain the outbreak of coronavirus disease 2019 (COVID-19) in New York City. However, assessment those interventions—for example, social distancing and cloth face coverings—based on real-world data from published studies is lacking. Methods The Susceptible-Exposed-Infectious-Removed (SEIR) compartmental model was used evaluate effect coverings daily culminative laboratory confirmed cases City (NYC) COVID-19...

The lateral carbon export related to mangroves is of great scientific significance and ecological value in the global cycle. dissolved inorganic (DIC), organic (DOC), particulate (POC), stable isotopes (δ 13 C POC ) water samples were quantified flood (September 2020) dry (January 2021) seasons Zhangjiang Estuary. results revealed that compositions tidal channel Estuary are as follows: DIC > DOC both seasons. Except for site near sluice, contents all significantly larger season than...

Recently, significant research activity has been devoted to thiolate-protected gold clusters due their attractive optical and electronic properties. These properties as well solubility stability can be controlled by post-synthetic modification strategies. Herein, the ligand exchange reaction between Au25(2-PET)18 cluster (where 2-PET is 2-phenylethanethiol) di-thiolated crown ether (t-CE) ligands bearing two chromophores was studied. The post-functionalization aimed endow with ion binding...

The tribological properties of self-mated silicon carbide, cemented and carbide/silicon carbide under water lubrication were studied. three matched pairs could achieve low-friction coefficients (0.01–0.03) certain test conditions. Additionally, the dependence friction on rotation speed load measured. By combining these results with observed surface topography wear measurements, it was determined that in hydrodynamic lubrication. In addition, combined experiments ethylene glycol PAO40, shown...

High percentage of photovoltaic gain connect to the wire line, so that electricity grid from power distribution receiving end network into a set production, storage, multi-source complex new network, security operation and energy consumption pressure increases. In response above, this paper puts forward distributed ES multi-objective optimization configuration strategy adapted high penetration rate PV. And through county practical example certify approach proposed can effectively mitigate...

Grain size and its distribution in NiTi thin films sputter-deposited on a heated substrate have been investigated using the small angle x-ray scattering technique. The crystalline particles are distributed over range of sizes for grown at temperatures 370 420 degrees C. results show that about same. From diffraction profiles, obtained were 2.40nm 2.81nm 350 C, respectively. morphology deposited different has studied by atomic force microscopy. root mean square roughness calculated film...

A first principles plane-wave method is utilized to investigate the bulk properties of NiTi alloy，such as lattice parameters, formation energy and cohesive elastic constant. The results are in good agreement with experimental other theoretical results.Furthermore,we have studied geometric electronic structures (100) and(110)surfaces. As surface geometry, there different relaxations layers. for cleaned NiTi(110) surface, outermost layer shows a large rippled relaxation which Ni atoms contract...

Graphitic carbon nitrides (g-C3N4) and microorganisms could collaboratively enhance photocatalytic properties or facilitate environmental depollution through coupled biological reactions, which prevented the destruction of stresses to ecological systems resulted in a sustainable technology for water remediation rivers lakes. However, roles bio-substances as well electronic interactions between inorganic organic were still unclear. Herein, g-C3N4, nitrogen-deficient g-C3N4 (ND-g-C3N4),...

The effect of thickness on transformation temperature the NiTi thin films has been studied by X-ray diffraction and photoelectron spectroscopy. Results show that crystallization for 3?μm-thick film is higher than 18?μm thick at same growth post annealing. With substrate increasing, start （As） austenite phase lowered after annealing 763 K 1?h. There an oxide layer （TiO2） surface, which prevents Ni atom from coming onto surface. a mixture Ti2O3 with NiO /substrate interface. layers affect...