Inhibition and recovery in a fixed microbial film leachate treatment system subject to shock loading of copper and zinc

John Scullion, Michael K. Winson, Richard Matthews

Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

27 Dyfyniadau(SciVal)

Crynodeb

The impacts of shock loadings of copper and zinc (up to 50 mg l−1) on the treatment efficiency of a mesoscale-fixed microbial film landfill leachate treatment system were investigated. Treatment inhibition and recovery were monitored in sequence over two 36 h experimental runs. The fate of added metals was also investigated. Copper, and to a lesser extent zinc, added to the treatment systems accumulated on the biofilm media. Increasing copper inputs (>10 mg l−1) progressively inhibited biological treatment of ammoniacal-nitrogen and carbon; this inhibition persisted into the recovery phase for nitrogen but not for carbon. Only the highest input of zinc affected media metal contents and carbon treatment rates; the latter inhibitory effect did not persist into the recovery phase. A small proportion of the metals accumulated on the biofilm media during the inhibition phase was released into the bulk leachate during the recovery experiment. These findings suggest a need to manage metal inputs into leachate treatment systems in order to ensure their continued efficacy.
Iaith wreiddiolSaesneg
Tudalennau (o-i)4129-4138
Nifer y tudalennau10
CyfnodolynWater Research
Cyfrol41
Rhif cyhoeddi18
Dyddiad ar-lein cynnar03 Meh 2007
Dynodwyr Gwrthrych Digidol (DOIs)
StatwsCyhoeddwyd - Hyd 2007

Ôl bys

Gweld gwybodaeth am bynciau ymchwil 'Inhibition and recovery in a fixed microbial film leachate treatment system subject to shock loading of copper and zinc'. Gyda’i gilydd, maen nhw’n ffurfio ôl bys unigryw.

Dyfynnu hyn