Occurrence, dissemination, and inactivation technologies of pathogens in the process of common solid waste treatment and disposal.

Solid waste is an important source of pathogens. During the process of collection, transportation, and treatment, pathogens may spread through direct contact, aerosol transmission, leachate discharge, and waste-derived by-products, posing threats to human health and ecological environment. The types and abundance of pathogens vary across different waste types and treatment methods.

Overlooked risk of antibiotic resistance genes in typical landfill plumes and their influencing factors.

Landfills are one of the primary reservoirs of antibiotic resistance genes (ARGs). Previous studies always focus on the distribution of ARGs in landfill leachate, while the distribution of ARGs in groundwater around the landfill and the corresponding influencing factors are always overlooked. In this study, seven groundwater samples and one leachate sample were collected from a typical landfill in Yueqing, China.

Transport of antibiotic resistance genes in the landfill plume: Experiment and numerical modeling.

Antibiotic resistance genes (ARGs) in the landfill site would potentially seep into groundwater by leachate infiltration, which poses great threat of ARGs dissemination through groundwater flow. However, the transport characteristics of ARGs in the landfill plume are still unclear, impeding the risk management and remediation of landfill sites. This study carried out a series of column experiments to investigate the transport of various ARGs in the landfill plume and its influencing factors.

Investigating the co-transport and combined toxicity effect of micro-/nano-plastics and PAHs in ryegrass.

The potential for micro-/nano-plastics (MNPs) to translocate from environmental matrices into organisms has been increasingly substantiated. However, the mechanisms underlying the co-transport and combined toxicity of MNPs in conjunction with organic pollutants in organisms remain inadequately understood. This study investigated the transport mechanisms and toxicity responses of ryegrass (Lolium perenne L.

Study on the growth and decline patterns and environmental drivers of pathogens during the stabilization process of simulated landfilling municipal solid waste.

Waste and leachate in landfills are substantial reservoirs of pathogens, however information about the risk of pathogen contamination during the stabilization process under different landfill conditions is very limited. In this study, dynamic changes of culturable pathogens, bacteria community, and human bacterial pathogens (HBPs) during the stabilization process under different landfill conditions were investigated, and the environmental drivers were explored. Results showed that total coliforms, Enterococcus, and Staphylococcus aureus were the dominant pathogens detected in waste and leachate samples.

Effects of inescapable waste composition on microplastic release and sulfate reduction in landfill.

This study systematically investigated the co-regulatory mechanism between waste composition, microplastic (MP) release, and sulfate reduction processes in simulated landfill environments under various waste composition conditions. Key findings include higher MP release and sulfate consumption in high-biodegradable waste groups compared to low-biodegradable waste ones, and a more sensitive coupling between sulfate concentration attenuation and MP release response in the low-biodegradable waste group. Biodegradable waste emerged as an inescapable source of MP release, contributing 17.

Highly-sensitive and logic platform based on spatially-constrained T7 transcription enhanced Cas13a for DNA repair enzyme detection and intracellular imaging.

The activity of DNA repair enzymes, particularly Flap endonuclease 1 (FEN1) and apurinic/apyrimidinic endonuclease 1 (APE1), plays a critical role in disease prevention, diagnosis, and prognosis. Accurate detection of these enzymes is therefore essential. Recent advancements in CRISPR-Cas technology, particularly its programmable and trans-cleavage activity, have paved the way for the development of innovative detection methods.

Effect of microplastics on sulfate reduction in landfill leachate-saturated zone.

The sulfate reduction behavior in the leachate-saturated zone of landfills is significantly influenced by the type of microplastics (MPs) and temperature. This study established different temperature conditions based on the leachate-saturated zone of landfills to investigate the sulfate reduction behavior influenced by different types of MPs at different temperatures. The results showed that HS release was more intense under the influence of polylactic acid (PLA).

Enhanced anaerobic digestion of waste activated sludge using magnetite-modified sludge ceramsite: Performance and microbial dynamics.

The effect of magnetite-modified sludge ceramsite on anaerobic digestion of sludge was systematically investigated in this study. The results revealed that the addition of magnetite significantly altered the properties of the ceramsite, while magnetite-modified ceramsite significantly altered the sludge anaerobic digestion process. Biochemical methane production potential experiments demonstrated that the cumulative methane production of the experimental group with moderate ceramsite addition was enhanced by 17.

Machine learning-assisted assessment of municipal solid waste thermal treatment efficacy via rapid image recognition and visual analysis.

Decentralized thermal treatment is a common method for municipal solid waste (MSW) disposal in rural areas. However, evaluating the effect of incineration has always been challenging owing to the difficult and time-consuming measurements involved. Herein, this study presented a rapid image recognition method for assessing the effects of thermal treatment on MSW using a neural network algorithm and a BAEVA 1.

Prognosis prediction and drug guidance of ovarian serous cystadenocarcinoma through mitochondria gene-based model.

Background: Mitochondrial dysregulation contributes to the chemoresistance of multiple cancer types. Yet, the functions of mitochondrial dysregulation in Ovarian serous cystadenocarcinoma (OSC) remain largely unknown.

Aim: We sought to investigate the function of mitochondrial dysregulation in OSC from the bioinformatics perspective.

Secondary aluminum dross self-heating enhances hazardous waste vitrification.

This study demonstrates the potential of secondary aluminum dross (SAD) to enhance the vitrifying hazardous waste incineration fly ash (FA) and bottom slag (BS). Based on the CaO-SiO-AlO ternary phase diagram, a liquid phase can be achieved at relatively low temperatures by carefully adjusting the AlO content, particularly when the CaO to SiO ratio is around 0.66.

Chemical looping ammonia synthesis based on the self-carried active N and Al from aluminum dross as low-cost nitrogen carrier.

Ammonia (NH), as a hydrogen energy carrier, is advantageous for mitigating energy consumption and carbon emission; however, the current Haber process for NH synthesis requires harsh conditions with a low conversion rate. To address these challenges, chemical looping ammonia synthesis (CLAS) has been proposed for utilizing aluminum dross (AD)-a hazardous waste containing sufficient active Al and N as a nitrogen carrier-involving carbon conversion without emissions. AD samples were employed to investigate the performance of CLAS, and the evolution of nitrogen carrier.

Characterization of pathogen distribution and pathogenicity from landfill site.

Landfills serve as significant environmental reservoirs for pathogens. This study investigated the abundance, distribution characteristics, and influencing factors of pathogens both within the landfill and its surrounding environment. The results unveiled contamination by pathogens in the external atmosphere (5.

The synchronized dynamic release behavior of microplastics during farmland soil erosion process.

Microplastics (MPs) are widespread in farmland soil. However, the risks associated with their loss through soil erosion remain unknown. This study investigates the occurrence and behavior of MPs in farmland soil in a southeastern coastal area of China, focusing on their synchronized dynamic release during soil erosion scenarios.

Hypoxic Preconditioned ADSC Exosomes Enhance Vaginal Wound Healing via Accelerated Keratinocyte Proliferation and Migration Through AKT/HIF‑1α Axis Activation.

Purpose: Accelerating wound healing is a main consideration in surgery. The three stages of wound healing are inflammatory response, tissue repair and cell proliferation. Much research has focused on epidermal cell proliferation and migration because this is an essential step in wound healing.

Characteristics and release potential of microplastics in municipal solid waste incineration bottom ash.

Incineration is an effective method for reducing and safely treating municipal solid waste. However, microplastics (MPs) inevitably remain in the bottom ash, potentially introducing new pollution risks during subsequent treatment processes. This study conducted an analysis of the accumulation and release potential of MPs in bottom ash samples collected from 4 municipal solid waste incineration plants in Zhejiang, China.

[Applications of biofilm in environmental pollution control and the related challenges].

Biofilm has been used in environmental pollution control in recent years due to its characteristics of adsorption and biodegradation. Beyond the success of its utilization in wastewater treatment, biofilm technique has high application value in the remediation of heavy metals and organic pollutants in soils. With the extensive attention and research of emerging pollutants such as microplastics and antibiotic resistance genes (ARGs), the pivotal role of biofilm can not be overlooked.

Dynamic release of siloxanes in the form of biogas from simulated municipal-solid-waste landfill and the corresponding driving mechanism.

Simulated landfill bioreactors were established and operated for 635 days to investigate the dynamic release of seven siloxanes in landfill biogas (denoted by octamethyltrisiloxane (L3), decamethyltetrasiloxane (L4), dodecamethylpentasiloxane (L5), hexamethylcyclotrisiloxane (D3), octamethylcyclotetrasiloxane (D4) and decamethylcyclopentasiloxane (D5) and dodecamethylcyclohexasiloxane (D6)). In total, 259.45, 252.