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Removal of Heavy Metals in Publicly Owned Treatment Works
Vise andre og tillknytning
1987 (engelsk)Inngår i: Environmental Progress, Vol. 6, nr 2, s. 91-98Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Studies were conducted at three activated sludge treatment plants during normal operation. The heavy metals were measured in the influent to each plant, the primary sedimentation effluent where applicable, the discharge after activated sludge treatment and secondary sedimentation, and in one case after a final polishing filter. Both the soluble and the total portions were measured. Beryllium, nickel, and thallium were not found in detectable levels in any of the plant influents. Mercury was found in only trace amounts. The removals of the other metals varied considerably. No consistent conclusions can be made from the data; each metal, soluble or total fraction, and unit treatment operation must be interpreted individually. The only metal in the plant effluents consistently above the recommended limit was arsenic, and this barely above the limit, and the lead content from Fitchburg, despite 83% removal.

sted, utgiver, år, opplag, sider
1987. Vol. 6, nr 2, s. 91-98
Emneord [en]
Hazardous materials - Chemical Analysis, Heavy metals compounds - Removal, sedimentation, anaerobic digester supernatant, mechanical aeration activated sludge, primary sedimentation effluent, publicly owned treatment works (potw), trickling filter, sewage treatment
HSV kategori
Forskningsprogram
TEKNIK, Produktions- och materialteknik
Identifikatorer
URN: urn:nbn:se:hv:diva-8416ISBN: 02784491 (ISSN) (tryckt)OAI: oai:DiVA.org:hv-8416DiVA, id: diva2:860163
Tilgjengelig fra: 2015-10-10 Laget: 2015-10-08 Sist oppdatert: 2016-02-11bibliografisk kontrollert

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