Abstract:
Process for treating contaminated earth (1) with different organic and inorganic substances, such as for example benzene, toluene, naphthaline, phenols and other mono- and polycyclic or aliphatic oxygen-, nitrogen- and sulphur-containing hydrocarbon compounds as well as simple and complex inorganic or organic salts. The invention concerns a combination of the following processing stages: a) homogenation and comminution (2) of the contaminated earth with an addition of treated recycled water to obtain a pumpable suspension; b) treatment of the suspension in a single- or multi-stage extraction process (5, 6) in counter-current with warm or hot recycled water according to the principle of increased dissolving power at high temperatures (over 100 DEG C) and at the corresponding pressure above the vaporization point; c) drying (12) of the suspension taken from the extraction systems until a residual humidity of less than 30 % by weight approximately is obtained; d) separation (30) of the dissolved substances contained in the recycled water (extraction agent) by cooling (27) according to the principle of reduced dissolving power.
Abstract:
The invention concerns a device for separating at least one object (7, 8) from a housing part (5), said device comprising a gripper device (15), an ejection arrangement (14) and optionally a feeler device (17) for detecting the object. The separating device can advantageously be used in systems for dismantling audio, video, data and film cassettes.
Abstract:
It is an apparatus suitable to transform urban organic waste materials in general into sterile mud residuals. The apparatus comprises, within one single tight case, provided with automatic electronic control systems, suitable and appropriate electromechanical parts and devices granting the following operations: a) first phase of waste material treatment with water inlet, obtaining a first coarse reduction of the waste; b) second phase of fine trituration; c) third phase of flocculation and contemporary sterilization, bringing the mud residuals to the high temperature of approx. 120 DEG C; d) fourth phase of centrifugation and quick cooling of muds through water inlet, and contemporary discharge of muds, reduced to a liquid condition, by means of a motor-driven pump, directly to the sewerage, being the apparatus connected to it, as well as to the water supply net and to the power net, leaving it ready for another treatment cycle.
Abstract:
A method for easily taking out a gas generator from a scrapped car and efficiently recovering metal materials from the gas generator. This method comprises the steps of: a) pulverizing a scrapped car having an air bag apparatus mounted thereto by pulverizing means adjusted so that the size of the shreds is substantially equal that of the gas generator, and separating the gas generator as a single substantially-unpulverized body from the air bag device, b) taking out the gas generator from the shreds of the scrapped car, c) charging the gas generator taken out into a melting furnace, and d) recovering the metal materials of the gas generator from the melting furnace.
Abstract:
A process is disclosed for dismantling display equipment (1) having a housing (10), a picture tube (20) and control electronics into recyclable components. The housings (10) are opened, the picture tubes (20) are removed therefrom and are then dismantled. A suction head (32) of a first suction die (30) is applied substantially at the centre of the area of the picture tube (20) which forms the screen (22). The housing (10) is cut up, so that at least two substantially opposed gashes (40, 42) are produced which are perpendicular to and start at the edge of the housing (10) which rests on the screen (22). The housing (10) is opened by bending the same along the gashes (40, 42) while the picture tube (20) is retained by the first suction die (30). The picture tube (20) is then pulled out of the housing (10) by retracting the first suction die (30) while retaining the housing (10).
Abstract:
Process as described in which the extraneous matter is in particular pollutants such as PCB, oil and similar, as well as useful materials such as coal and the like. The bulk material concerned is mixed with washing compounds such as water, tensides and the like and mechanically agitated. The process in accordance with the invention is characterized in that the mixture of bulk material and washing compound is exposed to powerful agitation, whereby the extraneous matter is separated under the effect of high-energy impacts, and that the bulk material, extraneous matter and washing compounds are then separated. Furthermore, the bulk material thus treated can be subjected to further washing with water in order to remove any remaining extraneous matter. The apparatus for performing the process is based on essentially vertical impact walls, in the form of turns of an endless screw (2), arranged inside a tubular container (1) with an essentially horizontal axis (8), said screw being rotated by means of a rotary drive (3) and linear drive (4) and simultaneously displaced with a back and forth jolting movement in order to separate in this way the extraneous matter from the bulk material by the action of high-energy impacts.
Abstract:
A method and an apparatus which can substantially completely remove paint and pigment on the surface of an empty can of aluminum to reclaim aluminum having a very low impurity content. The method comprises crushing pressed blocks of aluminum cans into aluminum chips (a) by crushing means (1, 2, 3), removing foreign materials contained in an aggregate of the chips (a), heating the aggregate of the chips (a) after removal of the foreign materials at a temperature below the melting point of the aggregate to burn combustible foreign materials, and agitating the residue in a paint removing apparatus (20a) by utilizing a rotor (36) which is rotated at a high speed, thereby removing the paint and/or pigment present on the chips (a) by taking advantage of frictional force and adhesion created by velocity difference. The aluminum chips (a) freed of the paint and pigment are fed into a compression molding machine (40) and again molded into an aluminum molding (b).
Abstract:
A device for recovering the component material of the window (L) in a motor vehicle door such as a rear hatch (H), including a movable assembly designed to be positioned under the open hatch, and provided with means for collecting fragments after a suitable tool has smashed the window.
Abstract:
Methods of soil containment and soil remediation are disclosed. The methods contemplate selecting a surface area (26) associated with a subterraneal volume (10) wherein the subterraneal volume includes ground water (14) beneath the surface area. Barrier means (20) are arranged around at least part of the perimeter of the subterraneal volume for isolating the surface area and the associated subterraneal volume from adjacent subterraneal volumes. The ground water table is then lowered to a desired depth so that a contaminated vadose (28) is exposed. The ground water is maintained at such lowered depth by means of gas pressure. Optionally, the exposed vadose zone may be remediated.
Abstract:
System including method and apparatus for treating contaminated underwater sediment (10) by lowering a hollow casing (21) to an underbed (22), lowering a power driven Kelly bar (19) with injecting and mixing blade (32) fed with treatment material such as solidifying cement and flyash, providing a top cover (31) for confining the sediment to be treated within the casing, injection and mixing the treating material through the Kelly bar, and sequentially moving the casing with Kelly bar to adjacent treatment locations.