print this page


spacer spacer
BACK TO LIST

SEALED LEAD ACID

   When batteries are received they are opened to extract the heavy metal lead component which is approximately 75% of the total battery weight. The lead, including antimony and lead oxide, is securely packaged for shipment to the blast furnace, where constant monitoring systems ensure safe smelting into lead bullion, for re-use in the manufacture of new batteries.

   The lead contaminated polypropylene plastic case or "jar" is then moved automatically to a crusher for fragmenting. Crushing the plastic is necessary for proper decontamination, economical freight, handling and extruding.

spacer
SealedLeadAcid
spacer

   From the crusher, the fragmented plastic is propelled into the wash bath, where it is agitated until free of lead particles and dirt before final rinsing and conveying into secure containers to dry before shipment. The plastic is then extruded into pellets and re-used in the manufacture of new battery cases.

   The spent sulphuric acid (electrolyte) is collected in safe storage and is recycled for re-use in other applications. Most spent acid is re-used by an Ontario firm in an oil recovery and refining process. All steel is rinsed clean and recycled for remelting by local steel mills into new steel products. Wash water used both in the plastic operation and general plant and machinery washing (daily) is re-used many times after being recycled to extract lead particulate and raise pH levels to neutral. Lead captured in stainless steel filters is collected in filter bags, which when changed, are charged into the blast furnace for safe disposal and lead recovery, with the battery lead scrap. All packaging materials (plastic wrap, cardboard, wood pallets) are re-used as protective or absorbent materials, for shipments of lead sulphate.

BACK TO LIST