Decontamination of soils, Part 1

Flotation – a reliable technology in solid hazardous waste treatment

Quelle/Source: JMB

Prozessschema der Bodenwaschanlage Jaartsveld in Steenbergen/Niederlande • Process schematic of the Jaartsveld soil washing plant in Steenbergen/Netherlands

Quelle/Source: JMB

Quelle/Source: DEC

Fließschema der Bodenbehandlungsanlage GRC Kallo, Antwerpen/Belgien • Process flow diagram of soil treatment center GRC Kallo, Antwerp/Belgium

Quelle/Source: DEC

Quelle/Source: ABW

Luftaufnahme der Bodenaufbereitungsanlage von ABW in Wien/Österreich • Aerial photo of the ABW soil processing plant in Vienna/Austria

Quelle/Source: ABW

Quelle/Source: Harbauer GmbH & Co. KG

(oben und auf der folgenden Seite) Fließschema der Anlage Marktredwitz einschließlich Bodenwäsche und Wärmedesorption 1992-96 • (above and on the following page) Flow diagram of the Marktredwitz plant including soil washing and thermal desorption 1992–96

Quelle/Source: Harbauer GmbH & Co. KG

Fließschema einer Bodenwaschanlage in Berlin (System Harbauer) nach dem Umbau 1996 • Flow diagram of a soil washing plant in Berlin (System Harbauer) after rearrangement in 1996

Quelle/Source: COGNIS Inc.

Typisches Bodenwaschverfahren in den USA, umfasst Korngrößenklassierung und oxidative Laugung • Typical US soil washing process including particle size classification and oxidative leaching

Quelle/Source: COGNIS Inc.

Quelle/Source: Metso Minerals

Bodenwaschanlage der Superfundanlage King of Prussia, New Jersey • Soil washing plant at King of Prussia Superfund site, New Jersey

Quelle/Source: Metso Minerals

Verfahrensschema der (mobilen) Bodenwaschanlage ART der Superfundanlage King of Prussia • Process schematic of the ART (mobile) soil washing plant at King of Prussia Superfund site

Von der US EPA überwachte Altlastensanierungsprojekte von 1982 bis 2005 • US EPA Source Control Treatment Projects considering contaminated sites between the years 1982 and 2005

Summary: Contaminated soils are primarily generated from demolition and remediation projects, mostly related to former industrial sites, but also from deep excavations, including underground debris removal, in conventional construction activities and ultimately from incidents during the transport and handling of fuels, chemicals and crude oil, etc. The main sources for high mercury wastes (Hg >260 mg/kg, as per US EPA definition) are former chlorine alkali plants (CAPs) and acetaldehyde factories. Flotation is able to provide a solution for decontamination of these soils.

Typical sources for soils which are specifically defined as ‘hazardous waste’, mostly containing a broad range of contaminations coming from for example former gas works, coking plants, tar and roofing felt factories, including typically large quantities of polycyclic aromatic hydrocarbons (PAHs), cyanides and a number of metals such as in particular mercury. Metals in various combinations are also generated from former dye factories, former paint and pigment producing industries (examples are the Chemical Factory Victor Alder, Vienna/Austria and the Paris Green factory in...