Abstract

The invention consists of a self-contained heating system (or unit) equipped with indirect tracer sensors that can be used in the field of soil remediation by thermal desorption using several heating systems. The sensors, coupled with system modelling to anticipate remediation needs, allow for better monitoring of the treatment compared to current systems and thus reduce treatment times and costs.The remote control of the heating system takes into account this additional information and each heating unit is controlled according to the measurements of its direct environment, making it possible to carry out an effective treatment notwithstanding the heterogeneity of the medium to be treated.

IPC Classes  ?

• B09C 1/06 - Reclamation of contaminated soil thermally

Abstract

Generally described, a heating device, or heating tube, includes a combustive fluid inlet, respectively a combustible fluid inlet, is connected to a combustion head via a first pipe, respectively a second pipe, the second pipe being housed at least partially in the first pipe. In this heating device, the combustion head is distant of at least 50 cm from the combustible fluid inlet, which enables to create a “cold zone” between the two. The first and the second pipes enable to bring the combustible fluid and the combustive fluid separately to the combustion head, even if the latter is remote by at least 50 cm from the combustible fluid and combustive fluid inlets.

IPC Classes  ?

• F23C 3/00 - Combustion apparatus characterised by the shape of the combustion chamber
• F23C 5/02 - Structural details of mounting
• F23C 7/00 - Combustion apparatus characterised by arrangements for air supply

Abstract

The present invention relates to a soil sampling system for extracting a hot soil sample up to 600°C, comprising (a) at least one inner cylinder comprising a sampler and (b) an outer cylinder of larger diameter allowing rotation of the inner cylinder in the outer cylinder, and wherein the inner cylinder and the outer cylinder comprise at least one opening suitable for entry of the hot soil sample when positioned such that the openings in the inner and outer cylinder are aligned and allow the sample to flow into the inner cylinder and such that the outer cylinder can rotate to seal the inner cylinder containing the sample airtight from the outside, and where the outer cylinder is provided with a scraper to force the entry of soil into the sampler upon rotation thereof and where the outer cylinder is provided with spiral or fractional spiral shaped fins to improve the introduction of the soil sampling system into the soil.

IPC Classes  ?

• G01N 1/08 - Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
• B09C 1/06 - Reclamation of contaminated soil thermally
• E02D 1/04 - Sampling of soil
• E21B 11/04 - Boring grabs
• E21B 27/00 - Containers for collecting or depositing substances in boreholes or wells, e.g. bailers for collecting mud or sandDrill bits with means for collecting substances, e.g. valve drill bits

Abstract

The present invention describes a system and method for treating soils and groundwater comprising a combination of thermal desorption with conductive heating and chemical treatment.

IPC Classes  ?

• B09C 1/08 - Reclamation of contaminated soil chemically
• B09C 1/00 - Reclamation of contaminated soil

Abstract

The present invention relates to a method for decontaminating soils by thermal desorption and for generating and storing power, the method comprising: - a solar concentration unit consisting of multiple concentrators connected to one another by a heat-transfer fluid network generating a heating fluid at a temperature above 100°C; - a set of metal tubes inserted into the contaminated soil, physically connected to the network and placed alternately with the solar concentrators; - a set of valves installed on the network making it possible to guide the fluid to a reduced number of metal tubes and then to direct this same fluid to other metal tubes as needed; a set of perforated tubes inserted into the soil, connected to catalytic oxidation units located below ground level and in direct contact with the metal tubes. The invention also describes an on-site thermal desorption system.

IPC Classes  ?

• B09C 1/06 - Reclamation of contaminated soil thermally

Abstract

A method for treating soils and groundwaters comprising an alternation of heating the soil and injecting nanoparticles comprising: an assembly of at least one tube for heating the soil combined with at least one perforated tube in order to extract the volatile and semi-volatile vapours and to inject nanoparticles; a heating system connected at the surface so as to increase the temperature of the heating elements; the injection, at moments chosen as a function of the temperature, of nanoparticles in colloidal form into the soil matrix; the injection, at different depths, of nanoparticles as a function of the heating phase; the recovery of vapours at specific depths as a function of the injections of nanoparticles in order to promote the stabilization of the heavy metals.

IPC Classes  ?

• B09C 1/06 - Reclamation of contaminated soil thermally
• B09C 1/08 - Reclamation of contaminated soil chemically

Abstract

The present invention describes a heating system used in soil remediation by thermal desorption, comprising: - a heat exchanger for recovering the heat contained in the combustion gases and using it to pre-heat the incoming air used in the combustion chamber; - a heat production unit (burner) having a combustion chamber located inside the heating tube, which heating tube is positioned inside the material to be treated.

IPC Classes  ?

• B09C 1/06 - Reclamation of contaminated soil thermally

Abstract

La présente invention concerne un dispositif de chauffage (1), ou
tube chauffant, dans lequel une entrée de fluide comburant (11),
respectivement de fluide combustible (21), est reliée à une tête de
combustion (30) via un premier tuyau (13), respectivement deuxième tuyau
(23), le deuxième tuyau (23) étant logé au moins partiellement dans le
premier tuyau (13). Dans ce
dispositif de chauffage (1), la tête de
combustion (30) est distante d'au moins 50 cm de l'entrée de fluide
combustible (21), ce qui permet de créer une "zone froide" entre les deux.
Le premier (13) et le deuxième (23) tuyaux permettent d'amener le
fluide combustible et le fluide comburant séparément à la tête de
combustion (30) même si celle-ci est éloignée d'au moins 50 cm des
entrées de fluide combustible (21) et de fluide comburant (11).

IPC Classes  ?

• F23C 5/00 - Combustion apparatus characterised by the arrangement or mounting of burners
• F23D 14/12 - Radiant burners
• F23D 14/46 - Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid Details