ES2379934B1 - SEQUENTIAL NUTRIENT CLEANING SYSTEM WITH TELEMATIC CONTROL. - Google Patents

Abstract

Sequential nutrient purification system with telematic control. # Includes a circular prefabricated tank, with a concentric inner tank, where the outer ring is the biological reactor (7) physically separated into four chambers, aerobic (1), aerobic (2 ), aerobic (3) and aerobic (4), and where the concentric deposit to the outer ring is a decanter (10), with a conical bottom, feeding the reactor (7) with a tube from the top, directly entering the water distributed between the anoxic chamber (4) and the aerobic chamber (1), and passing from the aerobic chamber (1) to the aerobic chamber (2), to the aerobic chamber (3), where part of the outlet water to the anoxic chamber (4), and the other part of the water passes to the decanter (10) by gravity, through a tube (11), leading the decanted water to the outside.

Description

The proposed invention consists of a system

Sequential nutrient purification system with telematic control. Object of the invention

The present invention aims at a sequential nutrient purification system with telematic control, which optimizes the different aerobic and anaerobic chambers by improving the habitat in each of them and the elimination of organic and nitrogenous matter. Background of the invention

Different systems are known for the treatment and purification of wastewater. For example, document MX 9602440 deals with a method and system for the purification of wastewater. The system comprises an anaerobic treatment region for biological phosphorus removal, a region of active sludge for the aerobic treatment of wastewater received from the anaerobic treatment region, a sedimentation region and clarification of wastewater received from the region of aerobic treatment, a return line for recirculating the active sludge from the sedimentation region to a region preceding the procedure and, a provision for varying the volume of the anaerobic treatment region.

Document ES 402139 also consists of a device in biological wastewater treatment facilities by the active sludge process. It consists of a circular shaped tank, seen from above, and which is divided into an aeration chamber located in the center and in a subsequent clarification chamber that has a triangular section in longitudinal section and surrounds that in annular shape, as well as a high-power centrifuge located in the center of the aeration chamber and provided with a vertical tube that ends slightly above the bottom of the tank, several horizontal path pipes that end with adjustable height are coupled to the vertical tube in the area of the water surface in the posterior clarification chamber. In the immersion wall in the area immediately below the water surface, one or more circular openings are provided to which spill pipes are arranged arranged in the rear clarification chamber and ending at the bottom thereof.

Document ES 374037 deals with a device in facilities for the biological purification of wastewater in accordance with the active sludge procedure. In a tank that constitutes the civil works of the treatment plant, integrated by a central part occupied by the aeration zone equipped with a high-performance turbine with a lifting tube, by a peripheral chamber to the anterior zone of triangular section, as a clarification space and by an outer casing to the sludge collecting tank, connections are established by tubular conduits between the aforementioned areas of aeration, clari fi cation and sludge collection arc finished in an adjustable way as to the height in the area of the water surface, being such the connection and position of the aforementioned pipes, which by the sole action of the turbine in the oxidation zone, water currents originate

or of water and mud between the different compartments mentioned above obtaining a uniform sludge extraction and a uniform sludge content in the aeration zone.

ma sequential nutrient purification with telematic control. Its particularity lies in the possibility of developing aerobic, anoxic and decanting phases in this equipment, all of them physically separated, and that there is also a controlled supply of mixed liquor -recirculation-to anoxis, which optimizes the process. It is an aerial equipment, not buried, of low energy consumption which facilitates maintenance; Prefabricated allowing for a very fast installation and with little space required. Another important point in innovation is the installation of devices that allow the complete remote control of the plant.

Together, a wastewater treatment equipment is developed in which all the processes of elimination of carbonated and nitrogenous matter are combined in a single equipment allowing high purification yields to be achieved.

The equipment comprises a prefabricated tank made of rigid material, preferably glass fiber, and circular in shape, with a concentric inner tank. Between the two tanks, a ring divided into several sections is generated depending on the needs, separated by walls located at different heights of the tank floor, which causes the fluid to pass through the part below the top of the walls. The outer ring is the biological reactor in which the removal of carbonated and nitrogenous matter will be carried out, divided into several sections separated by rigid walls. The equipment concentric to it is a tank with a conical bottom -decanter- in which solid-liquid separation occurs.

A plurality of process controllers, frequency inverters, flow meters, oximeters, suspended solids meters, COD meters, etc. are installed associated with the tank. All these equipments have the characteristic of being centralized in a control system that allows variations of the parameters in a telematic way, acting in addition to a real time recorder and communicator.

The residual water enters distributed to the first aerobic camera and anoxic chamber, and passes to the next section, to the next aerobic chamber, passing under the rigid wall that separates them. Subsequently, the water passes to the next aerobic chamber, the rigid wall being sealed to the hearth of the ring, so that the water can only pass through overflow. In this chamber and in the inner wall of the ring there is a tube, which goes to the central area of the decanter where the mixed liquor from the aerated chamber will enter.

The conical bottom decanter has a Thomson perimeter channel, with a fall towards a point where the purified water is collected that will be carried with a tube parallel to the wall of the decanter outside.

The reactor is fed from the top with a calculated diameter tube according to the flow to be pumped. The influencing flow is distributed between the anoxic chamber and the aerobic chamber 1, coming from a pretreatment, regulation or purification system. These flows will be regulated, at all times there is a proportionality between the in fl uence flow and the rate of assimilation of organic matter in the purification process, for which electronic control devices will be installed.

Part of the outlet water of the aerobic chamber 3 will be forwarded to the anoxic chamber from the top. This outlet water will be regulated by a device associated with the pump. The other part of the water in the aerobic chamber 3 will pass by gravity to the decanter through a tube. The decanted water is relieved to a Thomson channel and taken to the outside of the tank.

The pumped flow of the aerobic chamber 3 to the anoxis is mixed with the in fl uent flow and passes to the aerobic chamber 1 through the part below the rigid wall. Air will be injected into the three aerated chambers through diffusers that are powered by an air injection system. A dissolved oxygen meter will be installed in the aerobic chamber 3, and the oxygen concentration will be increased or decreased through a frequency inverter.

Excess sludge controlled by a solids meter and a purge device will be removed from the system.

All possible variables for adjustment and maintenance will be controlled via telematics in order to carry out control and adjustment operations without the need of face-to-face personnel.

The water line, represented in the fi gures by continuous line, has an instantaneous, partial and total flow control flowmeter, with the use of values depending on the operating cyclogram by the plant operating control logic. Description of the drawings

To complete the description that is being made and in order to help a better understanding of the characteristics of the invention, according to a preferred example of the practical realization thereof, a set of drawings is accompanied as an integral part of said description. where for illustrative and non-limiting purposes, the following has been represented:

Figure 1 shows a scheme of the proposed purification equipment, where the continuous line represents the flow of water to be purified, the broken line represents the flow of sludge, and the dotted line and line represents the flow of recirculation.

Figure 2 shows a scheme of the proposed purification equipment, where the flows have been represented in the same way as in Figure 1.

Figure 3.- shows another scheme of the purification equipment of the invention, the flows being represented in the same way as in the previous figures. Preferred Embodiment of the Invention

The proposed invention consists of a sequential nutrient purification system with telematic control, in which all the processes of elimination of carbonated and nitrogenous matter are combined in a single device allowing high purification yields to be achieved. In addition, the system allows its local and remote control, through visual diagnosis, by radio frequency means, telephones, web pages, emails, etc.

The equipment of the invention comprises a prefabricated tank in rigid material, circular in shape, with an internal tank concentric to said tank. The outer ring of this tank is the biological reactor (7), physically separated into four chambers - aerobic chamber (1), aerobic chamber (2), aerobic chamber (3) and anoxic chamber (4), producing here the elimination of the carbonated and nitrogenous matter. The separation in chambers of the biological reactor (7) is carried out through rigid walls (9), in each of which the appropriate conditions for the elimination of the different nutrients are established. They have a height less than the height of the reactor (7), so that they allow the passage of water from one section to another through the open spaces generated by this difference in heights. Thus, arranged vertically inside the reactor, they are placed, as shown in Figure 3, glued to the top of the reactor (7), or sealed to the hearth of the reactor, passing the water from one chamber to another below or above said walls (9).

In this way, the separation wall (9) of the anoxic chamber (4) and the aerobic chamber (1) is placed above the reactor floor (7), and at the height of its upper part, so that it remains a space (A) below said wall (9) for the passage of water from the anoxic chamber (4) to the aerobic chamber (1). And similarly, the separation wall (9) of the aerobic chamber (2) and the aerobic chamber (3) is placed above the reactor floor (7), and at the height of its upper part, leaving a space (A) below the wall (9). And the wall (9) separating the aerobic chamber (1) and the aerobic chamber (2) is sealed to the hearth of the tank, so that the water overflows through the upper part of said wall (9), leaving a space (A).

The reactor (7) is fed from the top with a tube, from a previous process (6), directly entering the water distributed between the anoxic chamber (4) and the aerobic chamber (1), and then passing to the aerobic chamber (2) and then to the aerobic chamber (3).

The concentric deposit to the reactor (7) is a decanter (10), with a conical bottom, in which solid-liquid separation occurs. There is a tube (11) in the upper inner part of the aerobic chamber (3), which connects the reactor (7) with the decanter (10), and that sends part of the water by gravity from the aerobic chamber (3) to the center of the decanter (10). Said decanter (10) has a Thomson channel through which the decanted water is relieved and conducted outside the equipment. In the aerobic chamber (3) an external outlet (12) has been arranged for part of the water, which is forwarded to the anoxic chamber (4) at the top, what is called anoxis recirculation.

Thus, through the lower part of the wall (9) separating the anoxic chamber (4) and the aerobic chamber (1), not only does the water from said anoxic chamber (4) pass, but also the water forwarded to the anoxic chamber (4) from recirculation. That is to say, in the anoxic chamber (4) the in fl uent water from a previous process (6) and the water from the recirculation to anoxis are mixed.

The sludge that occurs after solid-liquid separation in the decanter (10) is removed from the reactor, where a part is sent back to the aerobic chamber (1) as recirculation, and the excess is sent to a thickener (5) (purge).

The system has a set of controllers such as pumps, oxygen meters and others, which are associated with a control system that allows variations in the different parameters to be performed automatically and with telematic function, acting at the same time as a recorder and Real time communicator. A system (13) injects air through the lower part of the aerobic chambers (1), (2) and (3), through diffusers (14). A control device regulates the flow rates of water entering the anoxic chamber (4) and the aerobic chamber (1). Another electronic device associated with the pump (8) regulates the flow rate of the recirculation water from the aerobic chamber (3) to the anoxic chamber (4). In the aerobic chamber

(3) A dissolved oxygen meter is available which, through a frequency converter, allows the oxygen concentration to vary. An extraction system (15) arranged in the decanter (10) will send the sludge to the thickener (5) or to the aerobic chamber (1), depending on a solids meter located in the aerobic chamber (3).

The equipment as a whole can be controlled locally and by telematic control, using, for example, visual diagnostic elements, such as screens, monitors, etc., and even with acoustic and light signaling elements. In addition, such control can be carried out through web pages, emails, telephone and others.

Claims (18)

1. Sequential nutrient purification system with telematic control, characterized in that it comprises a prefabricated tank preferably in rigid circular material, with an concentric inner tank, where the outer ring is the biological reactor (7) physically separated in four chambers - chamber aerobic (1), aerobic chamber (2), aerobic chamber (3) and anoxic chamber (4) - in which the elimination of carbonated and nitrogenous matter occurs, and where the concentric deposit to the outer ring is a decanter (10 ), with a conical bottom, in which solid-liquid separation occurs, so that the reactor (7) is fed with a tube from the top, from a previous process (6), the water distributed directly between the anoxic chamber (4) and the aerobic chamber (1), and passing from the aerobic chamber (1) to the aerobic chamber (2), and from this, to the aerobic chamber (3), so that part of the water output is sent ar ecirculation from this aerobic chamber (3) to the anoxic chamber (4) at the top, and the other part of the water passes to the decanter (10) by gravity, driving the decanted water outside.

2.

Sequential nutrient purification system with telematic control, according to claim 1, characterized in that the physical separation of the biological reactor (7) is carried out through walls (9), in each of which the appropriate conditions for the elimination of The different nutrients.

3.

Sequential nutrient purification system with telematic control, according to previous claims, characterized in that the separation walls (9) of the different aerobic (1, 2, 3) and anoxic (4) chambers have a height less than the reactor height ( 7), so that they allow the passage of water from one section to another through the open spaces generated by this difference in heights.

Four.

Sequential nutrient purification system with telematic control, according to previous claims, characterized in that the separation wall (9) of the anoxic chamber (4) and the aerobic chamber (1) is placed above the reactor floor (7), and at the height of its upper part thereof, so that there is a space (A) below said wall

(9) for the passage of water from the anoxic chamber (4) to the aerobic chamber (1).

5.

Sequential nutrient purification system with telematic control, according to previous claims, characterized in that the wall (9) separating the aerobic chamber (1) and the aerobic chamber (2) is sealed to the tank floor, so that the water overflows through the upper part of said wall (9).

6.

Sequential nutrient purification system with telematic control, according to previous claims, characterized in that the wall (9) separating the aerobic chamber (2) and the aerobic chamber (3) is placed above the reactor floor (7), and at the height of its upper part thereof, so that there is a space (A) below said wall

(9) for the passage of water from the aerobic chamber (2) to the aerobic chamber (3). 7. Sequential nutrient purification system with telematic control, according to previous claims, characterized in that there is a tube (11) in the upper inner part of the aerobic chamber (3) that connects the reactor (7) with the decanter (10), thus sending part of the water by gravity to the center of the decanter (10). 8. Sequential nutrient purification system with telematic control, according to previous claims, characterized in that there is an outlet (12) on the outside of the aerobic chamber (3) for the output of part of the water, which is forwarded to the anoxic chamber (4) by the top.

9.

Sequential nutrient purification system with telematic control, according to previous claims, characterized in that the decanter (10) has a Thomson channel through which the decanted water is relieved and is directed to the outside of the equipment.

10.

Sequential nutrient purification system with telematic control, according to previous claims, characterized in that there is an air injection system (13) from the bottom of the aerobic chambers (1), (2) and (3), through diffusers (14).

eleven.

Sequential nutrient purification system with telematic control, according to previous claims, characterized in that there is a level control device that regulates the water flows that regulates the water flows entering the anoxic chamber (4) and the aerobic chamber (one).

12.

Sequential nutrient purification system with telematic control, according to previous claims, characterized in that there is an electronic device associated with the pump (8) that regulates the flow rate of the recirculation water from the aerobic chamber (3) to the anoxic chamber (4) .

13.

Sequential nutrient purification system with telematic control, according to previous claims, characterized in that in the aerobic chamber

(3) A dissolved oxygen meter is available which, through a frequency converter, allows the oxygen concentration to vary.

14.

Sequential nutrient purification system with telematic control, according to previous claims, characterized in that there is an extraction system (15) in the decanter (10) that will send the sludge to the thickener (5) or to the aerobic chamber (1), depending on a solid meter located in the aerobic chamber (3).

fifteen.

Sequential nutrient purification system with telematic control, according to previous claims, characterized in that all system controllers, pumps, oxygen meters and others, are associated with a control system that allows variations in the different parameters to be carried out automatically and with telematic function, acting at the same time as a recorder and communicator in real time.

16.

Sequential nutrient purification system with telematic control, according to previous claims, characterized in that it has visual diagnostic elements for its control and supervision.

17.

Sequential nutrient purification system with telematic control, according to previous claims, characterized in that it has acoustic and luminous signaling elements for its control and supervision.

SPANISH OFFICE OF THE PATENTS AND BRAND Application no .: 200900759 SPAIN Date of submission of the application: 03.20.2009 Priority Date: REPORT ON THE STATE OF THE TECHNIQUE 51 Int. Cl.: C02F3 / 30 (2006.01) C02F3 / 12 (2006.01) RELEVANT DOCUMENTS

Category

56 Documents cited Claims Affected

X

US 2003042199 A1 (SMITH GEORGE W) 06.03.2003, 1-17

paragraphs [0006], [0026], [0029-0033], [0038]; Figures 1-4.

X

GB 2329634 A (AW CREATIVE TECHNOLOGIES LTD) 31.03.1999, 1-17

page 2, line 5 - page 3, line 36; Figure 1.

X

US 5951860 A (GUY MONROE WAYNE) 14.09.1999, 1-17

column 3, line 12 - column 4, line 16; figures.

X

US 2005040107 A1 (KASPARIAN KASPAR A et al.) 24.02.2005, 1-17

summary; paragraphs [0055-0056], [0060]; figures 1.3.

X

FR 2748742 A1 (GTB BOUYER DUCHEMIN) 21.11.1997, 1-17

page 2, line 20 - page 4, line 1; figures 2,3.

X

WO 9700833 A1 (WRIDE GRANT ANDREW et al.) 09.01.1997, 1-17

page 1, lines 2-5; page 4, line 10 - page 6, line 21; Figures 1-4.

Category of the documents cited X: of particular relevance Y: of particular relevance combined with other / s of the same category A: reflects the state of the art O: refers to unwritten disclosure P: published between the priority date and the date of priority submission of the application E: previous document, but published after the date of submission of the application

This report has been prepared • for all claims • for claims no:

Date of realization of the report 22.03.2012

Examiner M. I. Ramos Asensio Page 1/4

REPORT OF THE STATE OF THE TECHNIQUE Application number: 200900759 Minimum documentation sought (classification system followed by classification symbols) C02F Electronic databases consulted during the search (name of the database and, if possible, terms of search used) INVENES, EPODOC State of the Art Report Page 2/4  WRITTEN OPINION Application number: 200900759 Date of Written Opinion: 22.03.2012 Statement

Novelty (Art. 6.1 LP 11/1986)

Claims Claims 1-17 IF NOT

Inventive activity (Art. 8.1 LP11 / 1986)

Claims Claims 1-17 IF NOT

The application is considered to comply with the industrial application requirement. This requirement was evaluated during the formal and technical examination phase of the application (Article 31.2 Law 11/1986).  Opinion Base.- This opinion has been made on the basis of the patent application as published. State of the Art Report Page 3/4  WRITTEN OPINION Application number: 200900759 1. Documents considered.- The documents belonging to the state of the art taken into consideration for the realization of this opinion are listed below.

Document

Publication or Identification Number publication date

D01

US 2003042199 A1 (SMITH GEORGE W) 06.03.2003

D02

GB 2329634 A (AW CREATIVE TECHNOLOGIES LTD) 31.03.1999

2. Statement motivated according to articles 29.6 and 29.7 of the Regulations for the execution of Law 11/1986, of March 20, on Patents on novelty and inventive activity; quotes and explanations in support of this statement Document D01 discloses a purification system comprising (the following references are found in Figure 3): an anaerobic inner chamber (11), a set of aerobic concentric tanks or channels (12, 14 and 16) and a decanter (18 ). The wastewater enters the anaerobic zone (20), where it is mixed with the flow of the first aerobic chamber and from this it goes successively to the rest of the aerobic channels, being part recirculated from the last of these to the first aerobic tank ( 58). The invention defined in claim 1 differs from document D01 in that the anaerobic chamber and the 3 aerobic chambers are next to each other in the same concentric channel and in that the decanter occupies the inner concentric chamber. But these differences in the arrangement of the cameras are obvious to an expert in the field, achieving the same technical effect, which is to develop a single equipment in which both the aerobic and anaerobic phases take place. Therefore, claim 1 lacks inventive activity. Claims 2-9, referring to the characteristics of the separation walls of the chambers and the connections with the decanter are obvious constructive details for a person skilled in the art. Claim 10 is known from D01 (34, fig. 3), as well as claim 14 (22, fig. 3). It is clear that for a debugging unit to function properly, it has electronic control for all its parameters, as explicitly described in document D02 (page 3, line 20-36). Then claims 11-13 and 15 have no inventive activity. Claims 16-17 have no technical characteristics. Therefore, claims 1-17 do not imply inventive activity according to Art. 8 of Patent Law 11/1986. State of the Art Report Page 4/4