Jilong Wang
M.Sc. student
Biography
A master’s student at the Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, focusing on the mechanisms and practical applications of manganese removal from water source reservoirs using manganese-oxidizing bacteria.
Education
Collaborative M.Sc. Environmental Engineering | Research Center for Eco-Environmental Sciences, Chinese Academy of Science
M.Sc. Environmental Science and Engineering | Inner Mongolia University
B.A. Environmental Science | Qingdao University of Science & Technology
Selected publications
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027 Phosphorus fuels *Cladophora* growth and self‑reinforcing adhesion via extracellular polysaccharides on hard substrata
Although high flow velocity, low nutrients, and smooth concrete surfaces typically suppress benthic algae, the filamentous alga Cladophora formed extensive biofilms in a major water transfer canal under conditions typically unfavorable for benthic algal colonization. We quantified Cladophora biomass, extracellular polysaccharides (EPS), and nanoscale adhesion through field surveys along the 1197 km canal and laboratory phosphorus-enrichment experiments. Phosphorus enrichment increased acid-extracted polysaccharides (APS) yield per biomass by 21.6%, and native EPS–sediment adhesion reached 18.6 nN, with polysaccharide backbones contributing approximately 88%. Along the canal, APS and sediment phosphorus were positively associated and both peaked at 30–45 cm depth. These results support a positive feedback mechanism in which APS strengthens adhesion and promotes local retention of phosphorus-bearing particles, potentially increasing phosphorus accessibility at the algal–matrix interface and further stabilizing the biofilm. The same biofilm can detach and cause downstream clogging. This self-reinforcing mechanism explains the spatial persistence of Cladophora blooms and provides a predictive basis for managing risks in large-scale water conveyance systems.
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