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Disadvantages of h2o2 treatment in refinery waste stream

Hi,
I am the plant manager of a waste water reclamation plant treating waste water from refinery thru coagulation, sand filters. Ultra filtration& R.O membranes.
Refinery recently introduced H2O2 in their waste water to reduce sludge. After introduction of H2O2, coagulation is affected & filter outlet turbidity has gone out of spec resulting in s/d of UF&RO systems.We were using FECL3 as coagulant& anionic polymer as flocculant.
kindly tell us why H2O2 addition is disturbing the coagulation.
Please treat this as urgent.

Subramanian Seetharaman
plant manager - Chennai, Tamilnadu, India
February 9, 2009

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