Environmental Archives - Page 2 of 3

Service écosystémique des sols, pourquoi les préserver ?

Depuis des dizaines de milliers d’années, l’Homme exploite les sols pour assouvir ses besoins. Au fur et à mesure du temps, la présence de l’Homme sur Terre s’est amplifiée et ce de manière exponentielle. Par conséquent, la pression exercée sur les sols s’est accentuée, se manifestant de manière toujours plus violente. Les sols, interfaces et liens entre la biosphère, l’atmosphère, l’hydrosphère (Ruellan, 2010), ont un rôle majeur au niveau du fonctionnement de notre planète. En les modifiant, les sociétés humaines...

Case Study For The In-Situ Treatment Of Unsaturated Soils At Gela’s Refinery (Italy)

By K. PACELLA, H. SAADAOUI, J. HAEMERS. HAEMERS Technologies © G. CACCAMO, A. BARABESI. Simam S.p.A., Servizi Industriali Manageriali Ambientali, Senigallia, Icaro Ecology S.p.A. The site interested by the remediation process through the application of the In-Situ Thermal Desorption technology, located inside the Refinery of Gela (ENI Group), consists of former discharge for oil residues deposited in the past. The contaminants are light and heavy hydrocarbons, benzene, polycyclic aromatic hydrocarbons, chlorinated compounds and mercury. The treatment area is divided into 24 batches: Zone...

In Situ Thermal Desorption under a building, in the center of Brussels

Nowadays, urban soil is a natural ressource to preserve. Indeed, the fast urbanization of the recent years led to considerable consequences in terms of space and energy consumption as well as water and soil pollution. At the present time, urban areas contain many contaminated sites. Two main issues can be identified which would need to be addressed through further reflection: first, the space consumption. Polluted areas in the centre of the cities are a waste of space. The clean-up of these...

Laboratory tests and pilot conception at Biên Hòa Airbase, Vietnam

During the US-Vietnam War, millions of litres of herbicides were dropped over Vietnam: The Rainbow agents. Biên Hòa Airbase was a joint operating base for the South Vietnam Air Force and the United States Air Force where thousands of barrels of Agent Orange were stored. Agent Orange was proven to cause severe health issues, including birth defects, neurological problems and cancers. Agent Orange is a mixture of 2,4-dichlorophenoxyacetic acid and 2,4,5-trichlorophenoxyacetic. Traces of dioxins were also found in some Agents. Indeed,...

Thermal Conductive Heating (TCH): electrical resistance heating or gas fired burners

Thermal desorption is an environmental remediation technology that uses heat to increase the volatility of contaminants (organic and/or inorganic) as such that they can be removed from solid matrix (typically soil) to be recycled or destroyed. The subject will focus on two existing in situ TCH techniques: electrical and thermal heating. The designs and calculations are made considering the injection of power per linear meter of heating element. The method of heat injection with electrical power directly injects 1 kW/m, when...

Thermal Desorption of Highly-impacted mercury soils in an Urban Area

By Q. Hilbert, A. Vandekerckhove, H. SAADAOUI, J. HAEMERS - HAEMERS Technologies J. Chibleur, J. Leplat - Biogénie In-Situ and Ex-Situ Thermal Desorption (ISTD and ESTD) are a technology based on thermal conduction that can effectively treat organic contaminants, independently of large soil heterogeneity. One of its applications is for contaminated properties in urban areas and under existing buildings. The main principle of the technology resides in installing a network of steel pipes that act as a air/soil heat exchanger to heat up...

Perfluoroalkyl and polyfluoroalkyl substances in the environment: Origins and feasibility in thermal desorption

Per- and polyfluoroalkyl substances (PFAS) came into use in 1950’s and since then have been used in numerous industrial and commercial applications. PFAS comprises a large group of compounds (> 6.000) consisting of at least a hydrophobic alkyl chain of varying length . This hydrophobic variety can be completely fluorinated (perfluorinated alkyl substances) or partly fluorinated with at least two fully fluorinated carbons (polyfluorinated alkyl substances). Compared to the binding energy of C-C bond (347 kJ/mol), the C-F bond (439 kJ/mol)...

Liege Creative HUB with HAEMERS Technologies

Jan HAEMERS will be present at the Liège Creative Forum in Seraing this Tuesday 13th of November 2018, and will do a 30 minutes presentation about "Soil Remediation, new ways to innovate". Consult Liège Creative's website by clicking the buttons below to learn more and attend to this event. When? Tuesday 13th of November 2018 Where? C.M.I, Avenue Greiner, 1, 4100 Seraing, Belgium Liège Creative's Event page Soil Remediation : new ways to innovate

Revue EIN – Dépollution des sols et des nappes : réduire les délais et limiter les coûts

The magazine "L'eau, l'industrie, les nuisances" published a thematic issue; "Soil and Groundwater Remediation: reducing delays and limiting costs" Haemers Technologies has the honor to be represented from page 34 on its most innovative site located in Ivry (Paris, France), contaminated with mercury and still in remediation process. Read it now! (available in french only) About "L'eau, l'industrie, les nuisances" L'eau, l'industrie, les nuisances is a magazine specialized in the field of water offers every month a high level of information. A veritable reference magazine,...

Risk AssessMent-Soil Expert advices and Services

Formation “Construire sur un terrain pollué” – 2e partie ce 20/03 à Andenne

Cette formation s’attache à fournir les clés et les informations les plus essentielles sur la thématique du re-développement des terrains pollués ou susceptibles de l’être. Comment anticiper les problèmes quand on porte ou envisage de porter un projet de construction sur de tels terrains ? Comment anticiper correctement les coûts de la gestion des pollutions ? Sur quels principes peut-on espérer les réduire ? Si la première partie était axée sur la communication des informations de base et les « grands...