Removal and Stabilization of Cadmium and Lead

I have been using a magnesia-based product to remove Cd and Pb from industrial wastewater with a starting pH 6 to 8. The treated metals are chemically bound in the sediment and remain stable and suitable for landfill disposal or recycling. 

Since the product formula I have been using is no longer available, I am looking for a substitute product (dry powder) available in the US that will accomplish these objectives.