t2
Wednesday 20 January 2021
IEG Home arrow Tecnologie

Tecnologie

Ricircolo acque di falda coassiale

Tuesday 12 September 2006

La circolazione coassiale dell'acqua sotterranea (KGB) viene utilizzata per risanare i bacini di acqua sotterranea e le acque sospese contaminate da idrocarburi volatili. Questo sistema può inoltre essere utilizzato per iniettare gas nel suolo, al fine di stimolare il processo di decomposizione microbiologica. Il sistema KGB utilizza una fase di disaerazione dell'aria del suolo, abbinata ad una tecnologia di strippaggio in situ dell'acqua di falda (la cosiddetta tecnica di "push and pull").

Leggi tutto... [Ricircolo acque di falda coassiale]
 

Proven In-situ Remediation Systems

Wednesday 04 November 2009
 

Unita`di Strippaggio Integrata

Thursday 14 September 2006

Aree possibili di applicazione
L'UVB è un sistema in loco per il risanamento di falde acquifere contaminate, in special modo quelle contaminate di idrocarburi volatili e semivolatili o da metalli pesanti. Tale sistema utilizza una combinazione di processi chimici, fisici e biologici. L'UVB è un processo brevettato dalla IEG mbH, Reutlingen, Germania.

Leggi tutto... [Unita`di Strippaggio Integrata]
 

Modular Groundwater Treatment

Tuesday 11 September 2007
Image here:Modual Treatment - K
Modual Treatment - K

For strippable groundwater compounds.
Image here:Modular Treatment - KS
Modular Treatment - KS

For strippable groundwater compounds and groundwater with high iron and manganese contents.

Image here:Modular Treatment - KSW
Modular Treatment - KSW

For strippable and non strippable groundwater compounds.

Image here:Modular Treatment - KSWR
Modular Treatment - KSWR

For strippable and non strippable groundwater compounds and groundwater with a high iron content.

Leggi tutto... [Modular Groundwater Treatment]
 

Ricircolo interstiziale

Wednesday 02 April 2008
Soil air circular flow is employed to remediate soils polluted with volatile contaminants (e.g. CHC, BTEX, jet fuels), some semi-volatile contaminants and/or biodegradable substances. Due to the application of low negative pressure, TESAC systems can be implemented in soil, where the horizontally induced flow bypasses contaminants trapped in low-permeability layers.
Leggi tutto... [Ricircolo interstiziale]
 

Estrazione vapori sotto vuoto

Friday 15 September 2006

La tecnica di estrazione a vuoto si è rivelata un metodo pratico e poco costoso per l'eliminazione degli idrocarburi volatili e semivolatili dalla zona vadosa.

L'estrazione a vuoto convenzionale viene effettuata praticando fori di trivellazione di piccolo diametro, anche appena sotto il livello della falda freatica, e provvisti di elementi filtranti di diametro non superiore a 50 millimetri. A seconda delle dimensioni dell'installazione e delle caratteristiche del suolo, vengono azionati compressori, solitamente con differenze di pressione comprese tra 40 e 120 pollici di acqua. L'elevata pressione negativa risucchia nell'impianto di disaerazione l'acqua capillare o l'acqua vadosa.

Leggi tutto... [Estrazione vapori sotto vuoto]
 

Modulo strippaggio/desorbzione

Friday 10 August 2007

IEG-Desorption-Stripping-Units (DSU) are used to remove volatile contaminants from groundwater or groundwater. According to the required effluent concentration the desorption units (or packed stripping towers) have to be either one-stage or multiple-stage.

Leggi tutto... [Modulo strippaggio/desorbzione]
 

Ricircolo aria interstiziale - Bioventing

Tuesday 12 September 2006
I sistemi di flusso circolare convogliato di aria nel suolo (BLK) vengono utilizzati per la bonifica di terreni contaminati da idrocarburi volatili. Tali impianti possono essere inoltre utilizzati per iniettare gas nel suolo, al fine di stimolare i processi di decomposizione chimica o biologica. Apposite strutture filtranti vengono inserite nel foro di trivellazione, e si distinguono in un elemento superiore e uno inferiore, ognuno dei quali viene ricollegato al compressore a pressione negativa posizionato sul terreno.
Leggi tutto... [Ricircolo aria interstiziale - Bioventing]
 

Pozzo multifunzionale

Monday 25 September 2006

The Multi-Functional Well (IEG MFW) has been implemented for the remediation of subsurface contamination caused by hydrocarbon spills. Four different remediation processes can be operated within the same well. At optimal efficiency of each remediation process, successive treatment of the capillary fringes, the vadose zone, and the aquifer can be accomplished. Each treatment process requires only simple modifications of the well configuration. Removal of the contaminants is done primarily through in situ air stripping.

Leggi tutto... [Pozzo multifunzionale]
 

Pozzo di Ricircolo (microbiologicamente assistito)

Thursday 14 September 2006

Due to the minimal environmental impact and low cost of implementation, biological remediation technologies have become increasingly popular during the last few years. In an ideal case, depending on the type of contaminants on the site, naturally occurring microorganisms degrade organic compounds to carbon dioxide and water. The rate of biodegradation is determined by the existing chemical and physical conditions. The goal of in-situ biological remediation technologies which IEG implements is to optimise the existing degradation potential.
Leggi tutto... [Pozzo di Ricircolo (microbiologicamente assistito)]
 

Ricircolo aria interstiziale

Tuesday 12 September 2006
I sistemi di flusso circolare convogliato di aria nel suolo (BLK) vengono utilizzati per le operazioni di bonifica di terreni contaminati da idrocarburi volatili. Tali impianti possono essere inoltre utilizzati per iniettare gas nel suolo, al fine di stimolare i processi di decomposizione chimica o biologica. BLK è un processo brevettato dalla società IEG mbH di Reutlingen, Germania.
Leggi tutto... [Ricircolo aria interstiziale]
 

Pozzo di ricircolazione della falda

Wednesday 11 November 2009

The IEG Groundwater Circualtion Well (IEG GCW) process is an in-situ system for the remediation of contaminated aquifers, especially those contaminated with volatile and semi-volatile hydrocarbons, using a combination of chemical, physical and biological processes. An IEG GCW process unit consists of a specially-adapted groundwater well, at least one submersible pump, a negative pressure stripping reactor located in a sub-surface vault, an above-ground mounted blower, and a waste air decontamination system (for example disposable filters or regenerative activated carbon filters).

Leggi tutto... [Pozzo di ricircolazione della falda]
 

Recupero Sottonatante

Monday 25 September 2006

For further information concerning DNAPL recovery with Groundwater Circulation Wells (GCW-DNAPL), please contact Indirizzo e-mail protetto dal bots spam , deve abilitare Javascript per vederlo

Leggi tutto... [Recupero Sottonatante]
 

Trattamento aria catalitico

Thursday 15 February 2007
Recuperative Catalytic Air Treatment Units (CatOx)
The polluted process air is heated either by a gas or an electrical heater to the necessary reaction temperature and then guided over the catalyst bed.
In the reactor bed the pollutants are decomposed to carbon dioxide and water. The heat from the reactor is recovered by a recuperative heat exchanger and used to pre-heat the process air.
Leggi tutto... [Trattamento aria catalitico]
 

Lavaggio con Alcool

Friday 13 October 2006

For further information concerning Alcohol flushing with Groundwater Circulation Wells (GCW-ALCO), please contact Indirizzo e-mail protetto dal bots spam , deve abilitare Javascript per vederlo

Leggi tutto... [Lavaggio con Alcool]
 

Emulsified oils

Wednesday 10 September 2008
 

Ossidazione Chimica

Thursday 14 September 2006

For further information concerning In-Situ Chemical Oxidation with Groundwater Circulation Wells (GCW-ISCO), please contact Indirizzo e-mail protetto dal bots spam , deve abilitare Javascript per vederlo

 

Leggi tutto... [Ossidazione Chimica]
 

Circolazione multipla

Monday 19 February 2007

The sphere of influence of GCW (Groundwater Circulation Well) depends on the distance of the two screen sections or, in case of a fully penetrating well, on the aquifer thickness. The larger the circulation cell is, the larger the travel time is for the circulation. For thick aquifers it may be beneficial to install several circulation cells, one upon another. This produces smaller circulation cells and shortens circulation flow time.

Leggi tutto... [Circolazione multipla]
 

Estrazione Polimerica

Thursday 14 September 2006

The GCW-MPPE process is an in situ system for the remediation of groundwater contaminated with dissolved or dispersed aromatic, aliphatic, poly aromatic and halogenated hydrocarbons using a combination of a hydraulic controlled flushing/extraction system with a high efficient physical purification system based on macro porous polymer extraction.

Leggi tutto... [Estrazione Polimerica]
 

Barriera permeabile virtuale

Monday 25 September 2006

IEG-vPRB In-situ Virtual Permeable Reactive Barrier with Overlapped Circulation Cells.
When a GCW is situated within the body of a groundwater contamination plume, this creates effective hydraulic control across a large diameter spherical capture zone within the aquifer. The polluted upstream groundwater is systematically captured by the GCW and treated in the well and within the aquifer.

Leggi tutto... [Barriera permeabile virtuale]
 

Carbone attivo - vapori

Thursday 14 September 2006
IEG's specially designed Granular Activated Carbon recovery systems (IEG GAC-Sorb) provide superior adsorption capacity due to an innovative system for the distribution of volatile organic compounds (VOCs) from contaminated off gas. Highly efficient in design and effective in operation, the largest of the systems, the 3000 litre, is capable of receiving and treating up to a maximum of 2300 m3/h of highly contaminated air, with a typical loading of up to 350 kg.
Leggi tutto... [Carbone attivo - vapori]
 

Pozzo di Ricircolo Reattivo

Thursday 14 September 2006

The Reactive Well Technology (GCW-R) significantly enhances the ability to combine a dynamic hydraulic flow system (GCW) with different reactive treatment areas under anaerobic conditions.

The specially designed remediation wells enable easy change to the reactive materials, such as controlled-release carbon plus zero-valent iron (ZVI) or other reduced metals, which is the subject of our EHC technology. One major difference between the GCW-R technology and a typical permeable reactive barrier (PRB) is

Leggi tutto... [Pozzo di Ricircolo Reattivo]
 

Modulo strippaggio compatta

Thursday 14 September 2006

IEG's Compact Vacuum Stripper (IEG CVS 1000) is an innovative system for the removal of volatile organic compounds (VOCs) from contaminated groundwater. Highly efficient in its design and effective in operation, the system is capable of receiving and treating up to a maximum of 15 m /h of highly contaminated water, with a VOC removal efficiency of up to 99.5%.

Leggi tutto... [Modulo strippaggio compatta]
 

Presa campione multilevello

Thursday 14 September 2006

When a number of IEG-MLSW systems are used at a site, they allow a very detailed three-dimensional soil and groundwater contamination profile to be developed, at a reasonable cost, since fewer boreholes are required, which itself reduces well purging and sampling time on site, at a much reduced cost. The patented modular system can be customised for the needs of each project, depending on the findings of a geoenvironmental investigation, or alternatively based on predetermined depths of interest. This IEG MLSW can be removed from the monitoring well.

Leggi tutto... [Presa campione multilevello]
 

Recupero Surnatante

Thursday 14 September 2006

For further information concerning LNAPL recovery with Groundwater Circulation Wells (GCW-LNAPL), please contact Indirizzo e-mail protetto dal bots spam , deve abilitare Javascript per vederlo

Leggi tutto... [Recupero Surnatante]
 

Pozzo di Lavaggio

Tuesday 12 September 2006

In the unsaturated zone, bioremediation is critically affected by the soil moisture content. For most natural biological degradation processes, the optimal water content is in range between 50% - 80%. With the Soil Circular Flushing Wella vertical multi-phase flow increases the saturation of water in the unsaturated zone. The remaining volatile hydrocarbons are either removed by in-situ stripping in the well, adsorbed on an optional activated carbon bed on top of the outer casing, or biodegraded in the well and unsaturated zone.

Leggi tutto... [Pozzo di Lavaggio]
 

Ricupero liquidi sotto vuoto

Thursday 14 September 2006

Vacuum-Enhanced Liquid Recovery (IEG VLR) process is an innovative technology underpinned by a detailed knowledge of how hydrocarbons actually behave in the subsurface. Using IEG VLR maximum recovery of free-phase product floating on top of the groundwater can be achieved quickly and cost effectively using a specially adapted well screened above the groundwater surface combined with one of several possible hydrocarbon recovery systems.

Leggi tutto... [Ricupero liquidi sotto vuoto]
 
Further Information iz
IEG-Technologie-Logo
To discuss IEG Technologie GmbH | Soil and Groundwater Remediation Specialists - Tecnologie or your individual in situ remediation requirements in detail, please click here to contact Dr. Eduard J. Alesi, Managing Director.

Home | About IEG | Remediation Technologies | Contact | International | Sitemap | Imprint / Impressum
© 2021 IEG Technologie GmbH | Soil and Groundwater Remediation Specialists