Fe addition as a promising strategy to enhance the pollutant removal performance and mitigate the membrane fouling of a laboratory-scale membrane bioreactor treating sulfamethoxazole wastewater.

Membrane bioreactor (MBR) is a water treatment process combining membrane technologies with activated sludge, which is beneficial to the removal of antibiotics. However, with the extension of the operation cycle, its efficiency in treating antibiotic wastewater decreases and the membrane fouling intensifies. As the presence of Fe could improve pollutants removal, microbial activity and sludge properties, it was anticipated that the addition of Fe in MBR might promote the removal of antibiotics and reduce membrane fouling.

A sustainable approach in pumpkin seed oil processing line: Recent advances in pumpkin seed oil and oil processing by-products.

Pumpkin seed oil (PSO) has gained popularity worldwide for its nutritional profile and biological effects, significantly increasing its market demand and consumption. However, pumpkin seed oil cake (PSOC), as the secondary by-product from oil processing, contains high potential value and is scarcely utilised. With the PSO increase in production, a large amount of PSOC will be generated.

Catalytic ozonation of sulfamethoxazole using loaded CuO/MgO-SiO silica aerogel catalyst: Performance, mechanisms and toxicity.

Catalytic ozonation technology can quickly and inexpensively treat antibiotic wastewater, where the performance of catalysts determines the level of catalytic efficiency. In this study, CuO/MgO-SiO (represented by CuMgSiO) catalysts were prepared using hydrothermal method. Their structure and properties were analyzed by X-ray diffractometer (XRD), X-ray photoelectron spectroscopy (XPS) and automatic specific surface area analyzer.

A New Compressed Data Acquisition Method for Power System Based on Chaotic Compressive Measurement.

The digitalization level of the new power system driven by "dual carbon" is increasing, leading to a growth in the amount of data that need to be acquired. This has intensified the contradiction between data volume and acquisition capacity. Therefore, it is urgent to study compressed data acquisition methods for power systems based on data compression.

Magnetic MoS/FeO composite as an effective activator of persulfate for the degradation of tetracycline: performance, activation mechanisms and degradation pathways.

The activated persulfate (PS) process could produce sulfate radical (SO) and rapidly degrade organic pollutants. The application of FeO as a promising PS activator was limited due to the rapid conversion of Fe to Fe on its surface. Mo on MoS surface could be used as a reducing site to convert Fe to Fe, but the separation and recovery of MoS was complex.

Dissipation and Risk Assessment of Propaquizafop in Ginseng under Field Conditions.

Propaquizafop is a highly efficient aryloxy phenoxy propionate chiral herbicide. However, the use of propaquizafop, including its safe use methods, residue patterns, dietary risk assessment, and maximum residue limits, for ginseng, a traditional Chinese medicinal plant, has not been studied. An analytical method was established for the simultaneous determination of propaquizafop and its four metabolites in ginseng soil, fresh ginseng, ginseng plant, and dried ginseng using HPLC-MS/MS.

Surface weak scratch detection for optical elements based on a multimodal imaging system and a deep encoder-decoder network.

The detection of surface weak scratches is an intractable but vital task in optics-centered industries. However, the intrinsic characteristics of weak scratches, such as a narrow width, long span, and shallow depth, make it extremely difficult to effectively detect these scratches. In this paper, we tackle this issue from two perspectives.

Efficient surface defect identification for optical components via multi-scale mixed Kernels and structural re-parameterization.

Surface defect identification plays a vital role in defective component rapid screening tasks in optics-related industries. However, the weakness and complexity of optical surface defects pose considerable challenges to their effective identification. To this end, a deep network based on multi-scale mixed kernels and structural re-parameterization is proposed to identify four manufacturing and two non-manufacturing optical surface defects.

Spillover effects of RMB exchange rate among RCEP member countries: Empirical evidence from time-frequency domain approach.

This study employs time-frequency domain approach to investigate the spillover effects of renminbi (RMB) exchange rate among the Regional Comprehensive Economic Partnership (RCEP) member countries. Utilizing daily data spanning from August 2010 to August 2022, we find that currencies in the RCEP region demonstrate significant interaction, which is primarily driven by short-term spillover, and ascend in response to major economic and political events. With respect to the influence of RMB, it displays frequency bands heterogeneity.

performance and stability tests of large-area flexible polymer solar cells in the 35-km stratospheric environment.

Flexible organic solar cells (FOSCs) are one of the most promising power sources for aerospace aircraft due to their attractive advantages with high power-per-weight ratio and excellent mechanical flexibility. Understanding the performance and stability of high-performance FOSCs is essential for the further development of FOSCs for aerospace applications. In this paper, after systematic investigations on the performance of the state-of-the-art high-performance solar cells under thermal cycle and intensive UV irradiation conditions, performance and stability tests of the solar cells in the 35 km stratospheric environment were carried out through a high-altitude balloon uploading.

Catalytic ozonation mechanisms of Norfloxacin using Cu-CuFeO.

As an easily recoverable, environmentally friendly and cost-effective catalyst, CuFeO is a promising candidate for the catalytic ozonation of antibiotics in wastewater. However, its catalytic activity is restricted due to its limited active sites and low electron transfer efficiency. In this study, cetyl trimethyl ammonium bromide (CTAB) and Cu were doped with CuFeO to introduce more O providing more active sites and improving electron transfer efficiency.

Contribution of nitrous oxide to the carbon footprint of full-scale wastewater treatment plants and mitigation strategies- a critical review.

Nitrous oxide (NO), a potent greenhouse gas, significantly contributes to the carbon footprint of wastewater treatment plants (WWTPs) and contributes significantly to global climate change and to the deterioration of the natural environment. Our understanding of NO generation mechanisms has significantly improved in the last decade, but the development of effective NO emission mitigation strategies has lagged owing to the complexity of parameter regulation, substandard monitoring activities, and inadequate policy criteria. Based on critically screened published studies on NO control in full-scale WWTPs, this review elucidates NO generation pathway identifications and emission mechanisms and summarizes the impact of NO on the total carbon footprint of WWTPs.

12.42% Monolithic 25.42 cm Flexible Organic Solar Cells Enabled by an Amorphous ITO-Modified Metal Grid Electrode.

Printed metal nanogrid electrode exhibits superior characteristics for use in flexible organic solar cells (OSCs). However, the high surface roughness and inhomogeneity between grid and blank region is adverse for performance improvement. In this work, a thin amorphous indium tin oxide (ITO) film (α-ITO) is introduced to fill the blank and to improve the charge transporting.

Applications of Sponge Iron and Effects of Organic Carbon Source on Sulfate-Reducing Ammonium Oxidation Process.

The typical characteristics of wastewater produced from seafood, chemical, textile, and paper industries are that it contains ammonia, sulfate, and a certain amount of chemical oxygen demand (COD). The sulfate-reducing ammonium oxidation process is a biochemical reaction that allows both ammonia and sulfate removal, but its low growth rate and harsh reaction conditions limit its practical application. Due to the adsorption properties of the iron sponge and its robust structure, it provides a suitable living environment for microorganisms.

The performance of electrode ultrafiltration membrane bioreactor in treating cosmetics wastewater and its anti-fouling properties.

The membrane fouling problem of the membrane bioreactor (MBR) for wastewater treatment reduces the membrane flux and the pollutants removal efficiencies, which is the major obstacle limiting its application and should be properly solved. The combination of membrane and electricity can effectively slow down the membrane fouling rate due to electric repulsion between the pollutants and the membrane. In this study, the performance and the membrane fouling features of an electrode ultrafiltration membrane bioreactor (EMBR) fed with cosmetics wastewater were compared with a conventional ultrafiltration membrane bioreactor (UMBR).

Microbial community competition rather than high-temperature predominates ARGs elimination in swine manure composting.

Aerobic composting is commonly used in pig manure treatment, however, antibiotic resistance genes (ARGs) and their unclear transformation during composting process make the treated manure land using risky. The effects of enhanced thermophilic phase strategy (external heating (HTC) and thermophiles inoculation (MC)) on ARGs removal and the underlying mechanisms were investigated during swine manure composting. HTC increased the total relative abundance (RA) of ARGs by 32.

Numerical Failure Analysis and Fatigue Life Prediction of Shield Machine Cutterhead.

This paper presents numerical failure analysis on cracking of shield machine cutterhead structure during a metro-tunnel construction. The stress intensity factors (SIFs) of surface cracks with different shapes and location angles were analyzed by a finite element simulation method based on linear elastic fracture mechanics (LEFM) theory. The ratios of variation in stress intensity factors of cracks with different shapes were analyzed.

The effect of bacterial functional characteristics on the spread of antibiotic resistance genes in Expanded Granular Sludge Bed reactor treating the antibiotic wastewater.

To explore the fate and spreading mechanism of antibiotics resistance genes (ARGs) in antibiotics wastewater system, a laboratory-scale (1.47 L) Expanded Granular Sludge Bed (EGSB) bioreactor was implemented. The operating parameters temperature (T) and hydraulic retention time (HRT) were mainly considered.

Nitrous oxide emission in a laboratory anoxic-oxic process at different influent pHs: Generation pathways and the composition and function of bacterial community.

This study focused on the nitrous oxide (NO) generation from the biological nitrogen removal process under different pH levels. To explore a pH optimum, the online NO emission and the bacterial composition and function in the anoxic-oxic process were investigated. The mean gaseous NO emission accounted for 0.

Gut Microbiota in Patients with Polycystic Ovary Syndrome: a Systematic Review.

Polycystic ovary Syndrome (PCOS) is one of the most popular diseases that cause menstrual dysfunction and infertility in women. Recently, the relationships between the gastrointestinal microbiome and metabolic disorders such as obesity, type 2 diabetes and PCOS have been discovered. However, the association between the gut microbiome and PCOS symptoms has not been well established.

Phosphorus removal from wastewater using electric arc furnace slag aggregate.

Electric arc furnace (EAF) slag aggregate, a waste by-product of the steel industry, exhibited a high potential for phosphorus (P) removal and had attracted considerable attention. The main objectives of this study were to evaluate the performance of using EAF slag aggregate as an adsorbent for P removal and identify its P removal capacity. A series of batch tests showed that P removal capacity of EAF slag increases gradually with the increase of pH with a range of 2-10, while the highest P removal capacity (1.

Effects of graphite particles/Fe on the properties of anoxic activated sludge.

In order to improve the sludge flocculation, the combination of graphite particles/Fe was used to change the sludge properties and accelerate the electron transfer rate. The effects of Fe on the properties of graphite particles were investigated and the synergistic effects of graphite particles/Fe on the sludge properties were analyzed using N-adsorption/desorption, scanning electron microscopy-X-ray energy dispersive analysis (SEM-EDX), X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR). The results showed that the operation time affected the specific surface area and pore size of graphite particles.

EZH2 deficiency attenuates Treg differentiation in rheumatoid arthritis.

The chromatin modifier enhancer of zeste homolog 2 (EZH2) methylates lysine 27 of histone H3 (H3K27) and regulates T cell differentiation. However, the potential role of EZH2 in the pathogenesis of rheumatoid arthritis (RA) remains elusive. We analyzed EZH2 expression in PBMC, CD4 T cells, CD19 B cell, and CD14 monocytes from active treatment-naïve RA patients and healthy controls (HC).

[Effect of Ca on the Nitrification Activity and the Flocculation and Sedimentation Performances of the Activated Sludge].

Ca is an important microbial growth factor that can affect the activity, flocculation, and sedimentation of activated sludge. In order to study the roles of Ca in the activated sludge system, the activity changes of ammonium oxidizing bacteria (AOB) and nitrite oxidizing bacteria (NOB) were analyzed using the specific oxygen uptake rates (SOUR and SOUR). The changes in composition and structure of extracellular polymeric substances (EPS) were analyzed using Fourier transform infrared spectroscopy (FTIR) and three-dimensional excitation emission fluorescence spectroscopy (3D-EEM).