Interpretable causal machine learning optimization tool for improving efficiency of internal carbon source-biological denitrification.

Interpretable causal machine learning (ICML) was used to predict the performance of denitrification and clarify the relationships between influencing factors and denitrification. Multiple models were examined, and XG-Boost model provided the best prediction (R = 0.8743).

Predicting photosynthetic bacteria-derived protein synthesis from wastewater using machine learning and causal inference.

Causal inference-assisted machine learning was used to predict photosynthetic bacterial (PSB) protein production capacity and identify key factors. The extreme gradient boosting algorithm effectively predicted protein content, while the gradient boosting decision tree algorithm excelled in predicting protein production, protein productivity, and protein energy yields. Driving factors were identified, with suitable ranges: protein content (pH 6.

Investigation on microplastic pollution of Dongting Lake and its affiliated rivers.

At present, the occurrence and pollution of microplastics have caused widespread concern, but there are still few studies on inland lake and its affiliated rivers. In this study, we monitored the existence and characteristics of microplastics in Dongting Lake and its affiliated rivers. Our sampling site covers almost the entire lake district.

Iron-modified rice husk hydrochar and its immobilization effect for Pb and Sb in contaminated soil.

Cationic and anionic heavy metal contamination sometimes co-exists in soil systems, such as mining areas and shooting ranges, seriously threatens human health and ecological stability. In this study, iron-modified rice husk hydrochar showed commendable ability to immobilize both heavy metal cation (Pb) and anion (Sb) simultaneously in soils. Iron-modified rice husk hydrochar (HC12.

Recent advances in toxicological research of nanoplastics in the environment: A review.

Nanoplastics have attracted increasing attention in recent years due to their widespread existence in the environment and the potential adverse effects on living organisms. In this paper, the toxic effects of nanoplastics on organisms were systematically reviewed. The translocation and absorption of nanoplastics, as well as the release of additives and contaminants adsorbed on nanoplastics in the organism body were discussed, and the potential adverse effects of nanoplastics on human health were evaluated.

Microplastics and nanoplastics: would they affect global biodiversity change?

Micro(nano)plastics, new emerging contaminants, are ubiquitously found in the environment due to continuous release and accumulation. Widespread micro(nano)plastics can increase their exposure to organisms, pose threats to the ecological environment and human health, and potentially result in global biodiversity changes. Research has been started on micro(nano)plastics regarding their environmental distribution, contamination sources, and methods and technologies for analysis, as well as the environmental impacts and ecological effects on organisms ingesting micro(nano)plastics.

Is vermicompost the possible in situ sorbent? Immobilization of Pb, Cd and Cr in sediment with sludge derived vermicompost, a column study.

The goal of this study was to investigate the immobilization effect of vermicomposted sewage sludge for Pb, Cd and Cr in the sediment under simulated in situ conditions using column test. Positioning 10% dw of vermicompost at the bottom layer of the column resulted in an average decrease of Pb, Cd and Cr in the leachate of 93, 97 and 75.5%, with the accumulated adsorbed amount of 11.

Micro(nano)plastics: An un-ignorable carbon source?

Micro(nano)plastics, new emerging contaminants, are widely found in the environment due to continuous release. Massive and widespread presence of micro(nano)plastics may have a significant impact on the calculation of total organic carbon, and potentially result in misunderstanding of the overall environmental pollution level. Previous studies typically paid attention to the environmental distribution, source, analysis methods and technologies, as well as the environmental and ecological effects of micro(nano)plastics.

A review on removal of siloxanes from biogas: with a special focus on volatile methylsiloxanes.

The occurrence of siloxanes is a major barrier to use of biogas as renewable energy source, and removal of siloxanes from biogas before combustion is needed. The siloxane can be transformed into silicon dioxide (SiO) through the combustion process in engine, which will be deposited on the spark plug, cylinder, and impeller to form the silica layer, causing the wear and damage of the engine parts, and shorten the life of the engine and affect the utilization efficiency of the biogas. This paper reviewed some methods and technologies for siloxanes removal from biogas.