Removal of heavy metals in potw using alum or sodium aluminate for phosphorus removal
1984 (English)In: Proceedings of Mid-Atlantic Industrial Waste Conference, 1984, 318-330 p.Conference paper (Refereed)
The addition of alum or sodium aluminate at dosages which effectively remove phosphorus is beneficial in removing copper, chromium, and lead when present in wastewaters. Chromium removal is enhanced by sodium aluminate addition, but alum does not affect chromium removal. Both types of aluminum salts appear to increase the removal of lead, but the large variance in the data does not allow this to be confirmed by the t-tests. Of the remaining metals analyzed, no difference in removal was observed with and without aluminum salt addition for cadmium or antimony, nor was there any difference in TOC removal. Mercury was effectively removed to below the detection limit by primary sedimentation, so no further removal was achieved during secondary treatment when the alum/aluminate was added. Other metals were not present in amounts above detection limits.
Place, publisher, year, edition, pages
1984. 318-330 p.
Hazardous materials - Wastes; Industrial wastes - Water Reclamation; removal of toxic metals from wastewater; wastewater treatment plants, heavy metals
Other Materials Engineering
Research subject ENGINEERING, Manufacturing and materials engineering
IdentifiersURN: urn:nbn:se:hv:diva-8541OAI: oai:DiVA.org:hv-8541DiVA: diva2:860180
Toxic and Hazardous Wastes, Proceedings of the Sixteenth Mid-Atlantic Industrial Waste Conference.; Bethlehem, PA, USA; ; Code 6106