Publications by authors named "Meiyan Lan"
Article Synopsis
- The study explores how plant litter decomposition affects soil nutrient levels, pH, and the movement of potentially toxic elements (PTEs) from mercury-thallium mine waste.
- It found that certain types of litter, particularly Bpa and Tre, significantly reduce the acidity of the waste and enhance the activity of iron-reducing microorganisms, which affects the release and migration of PTEs.
- The research concludes that while increased litter promotes the release of various PTEs, it also aids in the formation of insoluble compounds like HgS, which limits the mobility of mercury in contaminated sites.
Study on bioleaching of heavy metals and resource potential from tannery yard sludge.
Environ Sci Pollut Res Int
August 2021
Tannery sludge that has accumulated in the natural environment of a tannery industrial zone for a long time contains large amounts of toxic heavy metal elements such as Cr, which has a serious impact on the surrounding environment. This study used indigenous acidophilic sulfur-oxidizing bacteria from local tannery wastewater treatment plants to examine the effects of bioleaching on the removal of heavy metals in local tannery sludge accumulated in the natural environment. The effect of pre-oxygenation on bioleaching was investigated, and trends of sludge dewaterability during bioleaching and changes in the total amount of heavy metals, total nitrogen (TN), and total phosphorus (TP) during bioleaching were determined.
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