Labile organic carbon is a highly dynamic component of the marine carbon pool, traditionally thought to be respired within hours to days into carbon dioxide (CO2) by bacteria, although there is a paucity of direct observational evidence. Here, we report that a significant portion of labile particulate organic carbon (POC) in marginal seas is converted into bacterial material. By exploiting D/L-amino

This study aimed to develop a novel composite adsorbent combining peat (PS), limestone (LS), zeolite (ZEO), and activated carbon (AC), with ordinary Portland cement (OPC) as a binder (40% by weight), for the simultaneous removal of ammoniacal nitrogen (NH3-N) and chemical oxygen demand (COD) from stabilized landfill leachate. The composite was characterized using X-ray fluorescence (XRF), Fourier transform

This study introduces a novel integrated model aimed at enhancing the accuracy and efficiency of water quality assessments in four major reservoirs of Liaoning Province, China. The model integrates the technique for order preference by similarity to ideal solution with Monte Carlo simulation and employs the random forest method for weight allocation. Utilizing monthly water quality data, the model

This study investigated the morphological properties of PS MPs aged by ozone and their adsorption behavior. In this study, the aging of PS MPs was carried out using ozone at a concentration of 1.4 mg/L for 1 h. Subsequently, various laboratory techniques were used to study the morphological characteristics and adsorption behavior of the aged PS MPs. The findings indicated that the morphological characteristics

Gravity Recovery and Climate Experiment (GRACE) and GRACE Follow-On (GRACE-FO) are being increasingly used as valuable data sources for hydrological monitoring. However, their coarse spatial resolution is considered as a limitation for regional studies, especially in areas with remarkable hydroclimate variability. In this study, a novel approach is presented for downscaling, and gap filling of terrestrial

This study aimed to design and fabricate high-performance heterogeneous polymeric composites via in-situ polymerization, utilizing waste polystyrene-co-methacrylic acid functionalized with zinc cobalt oxide (ZC) at varying loadings (10, 15 and 30 wt %), designated as m-WZC10, m-WZC15 and m-WZC30 respectively. Additionally, waste polystyrene (W) underwent methacrylic acid grafting in the absence of

Groundwater is the main water source in arid climate regions. Climate change and extensive groundwater exploitation will stress the groundwater resources in the upcoming decades. Therefore, groundwater quantity and quality should be assessed. In this study, we focused on groundwater quantity, including recharge and storage (using groundwater level as an indicator) to predict system vulnerability. The

Boron mineral is very important for the life. However, exceeding the standards of boron minerals, especially in water to be used as domestic water, causes health and environmental problems. The commercial method used to separate boron minerals from water is reverse osmosis. In recent years, promising results have been obtained with the membrane distillation (MD) method. However, another method that

The objective of this study was to assess the feasibility of using a poly(vinylidene fluoride) (PVDF) membrane modified with cellulose/nanostructures as a separation technique for the removal of poly(vinyl alcohol)(PVA)/reactive dyes from synthetic textile wastewater. The goal was to recycle PVA/reactive dye yellow 145 for reuse in the industry while simultaneously reclaiming water for reuse. To achieve

This study focuses on the preparation and characterization of cross-linked carboxymethyl cellulose (CMC) biosorbent for efficient removal of Zn2⁺ ions from aqueous solutions. The microstructural features of the biosorbent were examined using scanning electron microscopy (SEM), while elemental analysis was conducted using an elemental analyzer to determine carbon (C), hydrogen (H), nitrogen (N), and

1. Abstract

Taste and odor (T&O) issues are pervasive challenges in water supply systems, significantly compromising water quality and safety. Actinobacteria are a major source of T&O issues in drinking water reservoirs, particularly during periods devoid of algal blooms. However, conventional culture media fail to cultivate actinobacteria efficiently, limiting our ability to assess their role in T&O events accurately

Swimming pools and pond waters may contain microbial contamination that could be a source of public health hazards. Waterborne bacteria from human or animal excrements or the environment can contaminate swimming pools and ponds. Unhygienic practices at pools, along with stormwater, sewage, and agricultural runoff, can all lead to contamination, indicating the need for monitoring bacterial levels in

The transition between ice-covered and non-ice-covered periods in lakes is continuous. However, the scarcity of comparative CO2 flux studies between these periods in large plateau lakes of mid-latitude regions represents a significant gap in our knowledge. This study is the first to use an eddy covariance system to directly measure year-round CO2 flux (May 2018 to April 2019) at Lake Wuliangsuhai,