Impact of metal ions on structural EPS hydrogels from aerobic granular sludge
作者: Simon FelzHugo KleikampJure ZlopasaMark C.M. van LoosdrechtYuemei Lin
作者单位: 1Department of Biotechnology, Delft University of Technology, Van der Maasweg 9, 2629 HZ, Delft, the Netherlands
刊名: Biofilm, 2020, Vol.2
来源数据库: Elsevier Journal
DOI: 10.1016/j.bioflm.2019.100011
关键词: Extracellular polymeric substances (EPS)EPS analysisBiofilmAerobic granular sludgeHydrogel
英文摘要: Abstract(#br)Structural extracellular polymeric substances (structural EPS) can form stable hydrogels and are considered to be responsible for the stability of biofilms and aerobic granular sludge. Structural EPS were extracted from aerobic granular sludge and characterized for their gel-forming capacity with different alkaline earth and transition metal ions. The structural EPS hydrogels were compared to alginate hydrogels. Alginate is a well characterized polymer which is able to form stiff hydrogels with multivalent ions. The stiffness of the obtained hydrogels was measured with dynamic mechanical analysis and quantified by the Young’s modulus. Furthermore the stability of structural EPS hydrogels towards disintegration in the presence of ethylenediaminetetraacetic acid (EDTA) was...
全文获取路径: Elsevier  (合作)

  • granular 粒状的
  • aerobic 需氧的
  • sludge 泥渣
  • metal 金属
  • structural 构造
  • EPS Electric Power Supply