ES2607231B1 - Method of disinfection of water by over-oxygenation by microalgae in waterproof systems - Google Patents

Abstract

The object of the present invention is a method of disinfection of water by over-oxygenation by microalgae in waterproof systems. This method is oriented to the oxygenate of water through the generation and growth of microalgae for water disinfection. # The invention falls within the field of water treatment, its use being viable for both wastewater and drinking water .

Description

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DESCRIPTION

Method of disinfection of water by over-oxygenation by microalgae in waterproof systems.

Object of the invention

The object of the present invention is a method of disinfection of water by over-oxygenation by microalgae in waterproof systems. This method is oriented to the oxygenation of water through the generation and growth of microalgae for water disinfection.

The invention falls within the field of water treatment, its use being viable for both wastewater and drinking water. It is part of the technical sector of water treatment processes, more specifically in that related to biological systems for the elimination of pathogens and organic matter.

State of the art

The proposed method is based on bibliographic references on closed systems based on the action of microalgae (Baccou, 2000; Lavoie, 1985).

There is knowledge of the existence at present of different procedures for water treatment, which are partially reflected in an indeterminate number of patents relating to their procedures, machines and equipment used in general for obtaining the intended purpose.

However, after conducting a study of the information, the existence of a similar treatment procedure that allows the elimination of pathogens and organic matter in water is unknown. A review of the documents cited below and that could affect the novelty of said invention has been carried out, and no matches that may affect it have been detected.

References

- CU 21089 TO 19820328. PROCEDURE FOR THE CULTURE OF MICROALGAE IN SEWAGE FROM FORAGE YEAST

- JP 2002316179 TO 20021029. SEWAGE TREATMENT SYSTEM AND SEWAGE TREATMENT STRUCTURE. PROBLEM TO BE SOL VED

- JP 86351997 A 19880305. SYSTEM FOR MIXING AND TREATING NIGHT SOIL AND GARBAGE. PURPOSE

- JP 2009056408 A 20090319. METHOD AND APPARATUS FOR FIXING CARBON DIOXIDE AND PRODUCING FRESH WATER SIMULTANEOUSLY. PROBLEM TO BE SOLVED

- DE 10024547 A 1 20011220. Prncess for biological cleaning of sewage or sludge and waste has heat provided by primary solar ca / reader with heat storage to maintain substrate heat on fluctuations from primary supply.

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- WO 2011098642 A1 20110818. INTEGRATED ENERGYHARNESSING SYSTEM.

- JP2007532291 TO 20071115.

- CU 21090 TO 19820328. PROCEDURE FOR THE CONTROLLED DOSIFICATION OF CARBON DIOXIDE IN MICROALGAE CULTURE.

- DE 3428716 A 1 19860213. Process for the self-sufficient utilization of waste, in particular in residential units, and apparatus for carrying out the same.

- CN 102923900 A 20130213. Solar energy assisted disinfection method and apparatus for composite artificial wetland.

- CN 202284172 U 20120627. Solarauxiliary disinfection apparatus forintegrated constructed wetlands.

Description of the invention

Studying the processes that have been used classically in artificial water treatment systems, a watertight system is developed in order to intensify the action of dissolved oxygen content.

From a wastewater, to which only a previous pretreatment has been applied, it is intended to obtain a water suitable for reuse, without any risk to health and starting from a drinking water containing pathogens, it is intended to ensure its disinfection.

For this purpose, the present invention focuses on the reduction of organic matter and water disinfection through the use of reactive forms of supersaturated oxygen, product of the photosynthetic activity of microalgae.

The proposed method uses a sealed reactor for water treatment based on self-purification that occurs naturally in aquatic environments, due to the development of microalgae and solar radiation.

The present invention describes the creation of a low cost method for carrying out the reduction of organic matter and disinfection. For this, it is composed of a waterproof, transparent and transparent or translucent system that allows the prolonged incidence of solar radiation in most of the body of water. This system must be equipped with hydraulic closure at the entrance and exit, and be closed, so that the water is in direct contact with the walls.

The dissolved oxygen resulting from the photosynthetic activity of microalgae is retained by the cover of the system producing an oxygenate in the water.

The reactor must allow efficient cleaning and handling, and a distribution that favors the homogeneity of the content. In addition, it is possible to take samples for analysis, as well as the introduction of measurement probes for continuous data acquisition of reactor contents.

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Description of the content of the figures

Figure 1 and Figure 2. System views (1), which includes two chopping boards (2 and 3), a flexible pipe (4) that includes a non-return valve (6) and is connected to a hydraulic pump (5) and another pipe rigid on the opposite side of the channel (7). The system (1) is covered by a flexible sheet (8).

Embodiment of the invention

The present invention is further illustrated by the following example, which is not intended to limit its scope.

The system (1), similar to a channel with a total length of 1 m, is made of transparent methacrylate 5 mm thick. At the ends of this channel we find two chopping boards (2 and 3), also made of 5 mm thick methacrylate, with openings in its lower part that will force the flow of water to enter through the lower part of the channel. The spaces (9) that remain between the ends of the system (1) and the chopping boards (2 and 3) are used to take samples for analysis.

To this channel the water that we want to purify / disinfect is introduced through a flexible PVC pipe (4) connected to a hydraulic pump (5), at a fixed flow rate of 0.15 liters per hour. Said pipe has an internal passage light of 10 mm and consists of a non-return valve (6).

The system (1) is covered by a flexible sheet (8) of transparent PVC 0.5 mm thick. Said sheet is fixed to the walls of the system (1) through the use of metal clamps.

The exit of the water already purified and disinfected is produced by the opposite end of the channel by another rigid PVC pipe (7) of 10 mm of interior passing light, which will take said water directly to the crop that we want to water. This outlet pipe will be height adjustable in order to increase or decrease the water level inside the reactor.

Claims (8)

5 10 fifteen twenty 25 30 35 40 ES 2 607 231 A1 1. Method of disinfection of water by over-oxygenation by microalgae in watertight systems, characterized by using a sealed reactor composed of a system (1) that includes two chopping boards (2 and 3), a flexible inlet pipe (4) consisting of a non-return valve (6) that is connected to a hydraulic pump (5) and another rigid outlet pipe on the opposite side (7). 2. Method of disinfection of water by over-oxygenation by microalgae in watertight systems, according to claim 1, characterized in that the system (1) preferably constructed in transparent methacrylate, is closed and covered by a flexible sheet (8) of transparent or translucent material that allows The penetration of light radiation as a source of energy and makes it waterproof. 3. Method of disinfection of water by over-oxygenation by microalgae in watertight systems, according to previous claims, characterized in that the flexible sheet (8) is fixed to the walls of the system (1) through the use of metal clamps. 4. Method of disinfection of water by over-oxygenation by microalgae in watertight systems, according to previous claims, characterized in that the system (1) is provided with a hydraulic inlet and outlet seal. 5. Method of disinfection of water by over-oxygenation by microalgae in watertight systems, according to previous claims, characterized in that at the ends of the system we find two chopping boards (2 and 3), also made of methacrylate, with openings in its lower part that force the flow of water to enter through the lower part of the canal. 6. Method of disinfection of water by over-oxygenation by microalgae in watertight systems, according to previous claims, characterized in that it has a flexible inlet pipe (4) and another rigid outlet pipe on the opposite side (7) made of PVC. 7. Method of disinfection of water by over-oxygenation by microalgae in watertight systems, according to previous claims, characterized in that the watertight reactor is based on the self-purification that occurs naturally in aquatic environments, due to the development of microalgae and solar radiation. 8. Method of disinfection of water by over-oxygenation by microalgae in sealed systems, according to previous claims, characterized in that the reactor allows sampling for analysis, as well as the introduction of measurement probes for continuous data acquisition of the contents thereof .