Does Polyelectrolyte affect Biogas Production?

We dewater municipal waste sludge with polyelectrolyte to increase dewaterability. Does the polyelectrolyte have an effect on the biogas production rate if it is used as feedstock in the anaerobic digester? Additionally, we dilute the polyelectrolyte with final effluent which is sometimes disinfected by chlorine. Are the microorganisms in the digester affected by the chlorine content if the residual chlorine=0.25 mg/l and the polyelectrolyte is diluted from 02wt% to 0.05wt% ?