How to use residual sludge to domesticate the sludge rich in sulfate-reducing bacteria？
I need a help because of following problem:
The residual sludge from the secondary sedimentation tank was used to domesticate the sludge with more sulfate-reducing bacteria with the condition of 100mg/L sulfate solution. After domestication, the sludge was used to treat 100mg/L sulfate wastewater to study the treatment effect.
As a result, the sulfate concentration increased firstly from 100 mg/L to 140 mg/L and then began to decrease.
- Is there residual sulfate in the acclimated sludge?
- how to completely remove, and to obtain acclimated sludge without sulfate/sulfur element?
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