Method for removal and detoxication of dissolved metals in a...

Liquid purification or separation – With gas-liquid surface contact means – With separator

Reexamination Certificate

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C210S170050, C210S290000, C405S129250, C405S129650, C405S129700

Reexamination Certificate

active

07037423

ABSTRACT:
The present invention provides a water treatment apparatus and method for reducing toxicity in zinc containing acid stormwater runoff, the apparatus comprising a first filter layer of high calcium material a last filter layer comprising a drainpipe arrangement embedded within an aggregate; and at least one intermediate filter layer comprising a wood mulch material positioned between the first filter layer and said last filter layer.

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