ES2319481B1 - DEVICE FOR THE ELIMINATION OF WASTE FROM WATER DEPURATION. - Google Patents

Abstract

Device for waste disposal from water purification; associated with a treatment plant of the type that produces wet solid and / or liquid waste of rejection for example from osmosis stages; that understands a hopper for deposit of solid waste and a bowl of evaporation of the water contained in the rejection liquid it receives the heat produced in a combustion chamber of solid waste fed from the hopper; having ducts and turbines destined to recirculate part of the hot gases and air of the combustion; while a solid residue obtained after the evaporation of water from the rejection liquid is reintroduced into the hopper for mixing with solid waste and subsequent combustion and reduction of the contaminating components contained in the same.

Description

Device for waste disposal from water purification.

Object of the invention

The present invention relates to a device for the disposal of waste from the water depuration.

Background of the invention

For the purification of dirty water (slurry, alpechines, vinasses or similar) that pose a serious problem environmental and that come from various uses (farms, farms, populations, industries, etc.) They know various systems and machinery.

Among them, a machine for obtaining and purification of water contained in waste is written in the patent in 200600764. In this machine the waste is pressed, microfiltered and osmotized, obtaining water on the one hand osmotized of sufficient quality for pouring into a natural channel or sewer, and on the other hand a wet solid residue and a osmosis rejection fluid with high concentration of nitrogen-rich pollutants

For these remains or other analogues from of other machines or treatments a treatment was not foreseen able to eliminate them, inconvenience that is remedied by device of the invention.

Description of the invention

The device of the invention serves as a optimal way to virtually completely eliminate waste solids and liquid rejections from various procedures and sewage treatment machines, and especially from the machine protected in patent 200600764.

According to the invention, the device it comprises a solid waste accumulation hopper provided with a lid and a water evaporation tank contained in the liquid rejection, which receives the heat produced in a chamber of combustion where the solid waste is burned, feeding the chamber of combustion preferably by means of a conduit that communicates with the hopper outlet and inside which runs a motorized auger

Part of the hot air and gases generated in the  combustion is recirculated through ducts and turbines to the hopper to cooperate in drying the solid residue, and certain components transported in these gases are retained in a solid residue, so that it is emitted mainly Cooled air.

Also the combustion chamber has means for the evacuation of ashes.

Since the expected pH for liquid rejection it will be less than 10, mainly water will evaporate, leaving a small solid residue rich in nitrogen compounds in the form of film, which will be removed in maintenance work and It will be introduced into the hopper to be mixed with solid waste. Thus, in the combustion of the mixture these solid compounds will leave reducing to nitrogen with minimal impact environmental in its emission.

Brief description of the drawings

Figures 1 and 2 show side views and in plan of the device of the invention, appearing in the plan view some sections or breaks for better appreciation of the details.

Description of a practical embodiment of the invention

The device 1 of the invention is used preferably associated with a water purification machine of various sources, not represented, as described in the 200600764 patent.

These types of machines produce three types of By-products: osmotized water that can be poured into channels natural or sewage, solid waste from a mechanical separation and microfiltration, and a concentrated liquid of rejection in the final stage of reverse osmosis. Precisely the device of the invention is intended to eliminate these two Last by-products

For this, the device 1 comprises a hopper 2 with lid 3 where the solid waste is stored and a bowl 4 of evaporation where the rejection liquid is poured. Since the pH of this liquid is less than 10 a fundamentally evaporation of water, generating an accumulation over time of a solid pollutant moiety, mainly composed of nitrogen, in the form of husks in the tank.

To produce evaporation they burn in the corresponding combustion chamber 5 solid waste stored in hopper 2, which are led to the chamber of combustion by means of a conduit 6 through which endless 7 motorized. In this example the combustion is produced by the cooperation of two burners 8.

Solid waste must be exempt from moisture to burn, which is why it is convenient let them dry in a suitable environment for as long as considered necessary. Even so, as they will always retain moisture, the device of the invention also contemplates recirculation from the gases and hot air from combustion towards the hopper through the corresponding duct 9 and turbine 10 of aspiration, after which drying of the solid residue is obtained and the reduction therein of various gas pollutants, emitting fundamentally cold air. The rest of the gases and air of combustion are emitted through the corresponding chimney 11, cyclonic type to reverse and collect possible particles and Avoid its emission to the atmosphere.

On the other hand, the ashes coming from the combustion of the waste is evacuated through a lower duct 12 with the corresponding motorized auger 13.

Finally, the solid residue obtained in the form of  husk in the tank is periodically reintroduced into the hopper, finally mixed with the solid residue from the purification to the combustion chamber, where the compounds of Nitrogen is reduced and pure nitrogen is finally emitted.

Describe sufficiently the nature of the invention, as well as how to perform it in practice, should be noted that the provisions indicated above and represented in the attached drawings are susceptible to modifications of detail as long as they do not alter the principle fundamental.

Claims (5)

1. Device for the disposal of waste from water purification; associated with a treatment plant of the type that produces wet solid waste and / or rejection liquids for example from osmosis stages; characterized in that it comprises a hopper for deposit of the solid waste and an evaporation tank of the water contained in the rejection liquid that receives the heat produced in a combustion chamber of the solid waste fed from the hopper; having ducts and turbines destined to recirculate part of the hot gases and air of combustion towards the hopper in order to cooperate in the drying of the solid waste, and chimneys for evacuation of the rest of hot gases and air; and the combustion chamber having means for extracting the ashes; while a solid residue obtained after evaporation of the water from the rejection liquid is reintroduced into the hopper for mixing with the solid residue and subsequent combustion and reduction of the contaminating components contained therein. 2. Device according to claim 1 characterized in that the supply of waste to the combustion chamber from the hopper is carried out by means of a conduit that communicates the exit of the latter with the combustion chamber and through which a motorized auger runs. 3. Device according to claim 1 characterized in that the means for extracting the ashes from the combustion chamber consist of a lower conduit of said chamber and through which a motorized auger runs. 4. Device according to claim 1 characterized in that the gas emission chimney is of the cyclonic type for particle reversal. 5. Device according to claim 1 characterized in that the hopper has a lid.