ES2583160B1 - PROCEDURE FOR THE TREATMENT OF INFECTIOUS RISK RESIDUES, CYTTATIC AND CYTOTOXIC RESIDUES AND RESIDUES OF NON-CYTTATIC DRUGS, AND EQUIPMENT FOR THE PRACTICE OF SUCH PROCEDURE - Google Patents

Abstract

Procedure for the treatment of infectious risk residues, cytostatic and cytotoxic residues and residues of non-cytostatic drugs, and equipment for the implementation of said procedure comprising: - shredding of the residue, in a closed system; - mixing the crushed waste with oxidizing agents, following a specific oxidation process for each type of residue; - and deposited of the treated waste in a collection tank (14) of solids, after separation of liquid faction and analysis, for disposal as urban waste. The equipment (1) comprises a crushing unit (2) with a receiving conveyor belt (4), a loading hopper (5) and a crusher (6), and a treatment unit (3) with a reactor (11 ) Mixer and collection tank (14) of solids, there being a sealed and sealed transport equipment (8) between the two units.

Description

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On the one hand, a crushing unit is provided, designed to achieve the appropriate particle size and the largest contact surface to favor the subsequent Advanced Oxidation process, which essentially comprises:

-A bucket conveyor belt that allows the waste to be transported to the crusher hopper, -a loading hopper to deposit waste in the crusher, -a crusher, capable of crushing the waste to a size suitable for the needs required to favor the better performance in later stages, -a mill, capable of grinding the waste to a particle size appropriate to the needs l required for a certain type of waste, -a air extraction system and a high efficiency filter (High English HEPA Efficiency Particle Arresting) to prevent the exit of particles into the atmosphere, -and a spray system to generate an oxidizing atmosphere and favor the disinfection of the crushing unit.

On the other hand, the equipment of the invention provides a treatment unit itself, which comprises:

-A transport system from the crushing unit to the closed and sealed treatment unit, which guarantees adequate reactor feeding automatically, -a reactor where the mixture of the different oxidants is produced and where the treatment occurs of advanced oxidation of the residues, either the sterilization of the infectious residue, either the inertization of the cytostatic and cytotoxic risk residues, and the non-cytostatic drug residues. -a series of containers of the different oxidants and dosing systems thereof to the reactor, -a deposit for solid waste arranged at the exit of the reactor to collect solid waste and evacuate liquid waste when they occur, -and various points of sampling throughout the system to verify the effectiveness of the process.

The procedure for the treatment of infectious risk residues, cytostatic and cytotoxic residues and residues of non-cytostatic drugs and a team for the implementation of said procedure thus represent an innovation of structural characteristics and

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saying.

The crushing unit (2), intended for the prior preparation of the waste, comprises a receiving conveyor belt (4) to raise the waste to the loading hopper (5) that contemplates said crushing unit (2). This hopper (5), deposits the waste in the crusher (6), where the waste is crushed until it acquires the appropriate size to the required needs. Once crushed, the waste can be directed to a mill (7) which, optionally, also incorporates the crushing unit (2), or directly to the transport equipment (8) that transfers it to the treatment unit (3) depending on of the type of waste that is being processed and its crushing and grinding needs.

Preferably, the crushing unit (2) also incorporates an air extraction system (9) and a high efficiency filter (10) to prevent particles from entering the atmosphere, as well as a spray system ( not shown) to generate an oxidizing atmosphere and favor the disinfection of this crushing unit (2).

On the other hand, the treatment unit (3) comprises a reactor (11), constituted by a mixing bowl where the crushed waste is collected and the mixture with the different oxidants is produced, a transport equipment (8) being provided that transfers the residue from the crushing unit (2) to the treatment unit (3), which is closed and sealed and that guarantees adequate reactor feeding (11) automatically.

The mixing tank of the reactor (11), as seen in Figure 3, has internally helical blades (12) that allow homogeneous mixing of the residue with the oxidizing agents when the reactor revolves around its axis clockwise, and the output of the residue when the direction of rotation is counterclockwise. This is how the reaction is favored and the proper treatment of the different types of waste.

For said oxidants, the treatment unit (3) has a series of containers attached to the system (not shown) from which, by means of dosing systems provided for this purpose, they are incorporated into the reactor.

Under said reactor (11), the collection tank (14) of solids is placed where the treated waste is discharged through its outlet (15), and from which, after the relevant tests that allow to conclude that it is free of danger , can be treated as

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urban waste

For its part, the liquid resulting from the treatment of infectious risk residues is analyzed prior to discharge of the reactor residue (11) to ensure its

5 safety, having provided for at least one sampling point (16) where a Biological Indicator is included to guarantee the appropriate degree of sterilization, and from which samples can be taken to know the physical-chemical parameters necessary to control The treatment process.

10 Describing sufficiently the nature of the present invention, as well as the way of putting it into practice, it is not considered necessary to extend its explanation so that any expert in the field understands its scope and the advantages that derive from it, stating that , within its essentiality, may be implemented in other embodiments that differ in detail from that indicated by way of example, and to which

15 will also achieve the protection that is sought as long as it does not alter, change or modify its fundamental principle.

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Claims (1)

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