ES2766925B2 - Dosing device for biological treatment in the public sanitation network - Google Patents

Description

DESCRIPTION

Dosing device for biological treatment in the public sanitation network.

OBJECT OF THE INVENTION

The main object of the present invention is to provide a device to be located in the public sanitation network itself for the treatment of wastewater and the maintenance of the pipeline, without the need for energy or chemical products, more efficient from the point of view economic and lower environmental impact, based on the immediate decomposition of organic matter, thus preventing it from adhering to the pipes and obstructing them or serving as food for rats and insects that inhabit the sewer network itself and contribute to increase its deterioration.

The present invention finds its scope for its application in the previous treatment of wastewater, once it is discharged into the public sanitation network of any town and before it is received in the wastewater treatment plant.

BACKGROUND OF THE INVENTION

By way of introduction, it is known by all as water is a very valuable and scarce resource that is not distributed on the surface of the earth on a regular basis, and of which everyone is aware that it is necessary to move towards a more rational use and seek its recovery, thus being one of the great challenges of our century.

To the rigors that climate change is imposing, is added the increase in the resident population in large urban agglomerations and the progressive urbanization of coasts and mountains with the consequent demand for water and infrastructure.

More specifically, the importance of population centers addressing the applicable legislation is known to all, leading the discharges received into their sewage network to the corresponding wastewater treatment plant, where the water is subjected to the corresponding purification treatment as reverse step to its return to the public channel, use for risk, driving to a drinking water treatment station, etc.

As in all challenges in the field of engineering, it is about addressing this need to undertake investments both in the execution of the sewerage network itself and the treatment stations, as well as assuming subsequent operating costs, which guarantee the goals planned in the most efficient way possible. In this context, it is evident the importance of the maintenance costs of a public sanitation network, including the consumables or the minimum necessary personnel, as well as the cost of the electricity supply, associated with the impulsion of the discharges or the treatment of the same.

Considering the state of the art, in terms of proposals for wastewater treatment in the sewage network itself or pipes, as a complementary technical solution by way of treatment prior to that carried out in the treatment plant itself, the following are identified inventions identified by their publication number and title respectively;

V WO2007113681A2, "System for the treatment and recirculation of water and other solvents".

V CN205856264U, "Device for the purification of wastewater in the municipal sewer network".

V CN103771668A, "Treatment in the wastewater distribution system of an urban sewerage network".

V ES2397463B1, "Treatment procedure for the reduction or prevention of the production of hydrogen sulfide compound and corresponding installation". These techniques are not applied in the public sanitation network, directly from the inside, but are applied in small pipes coming from premises where the equipment is housed in the walls of buildings and supplied with electricity.

Introduction to enzyme treatments

It is interesting to make an introduction to enzyme treatments and how it influences our ecosystem and the environment.

Thus, enzymes are capable of catalyzing a wide variety of organic compounds, mainly aromatics. The aforementioned enzymes are produced mainly by microorganisms such as bacteria and fungi, however, they are very limited sources.

They have the ability to oxidize different organic pollutants and transform them into other products allowing a better final treatment of waste. They also mineralize pollutants, making them less harmful or even making them not harmful to health.

Then, by eliminating phenols through polymerization, the wastewater can be treated with efficient and modern methods that do not show side effects and, however, provide the following advantages;

• They are biological catalysts produced by living beings.

• They are highly effective and do not form unwanted by-products.

• They work in mild conditions, at atmospheric pressure, room temperature and neutral pH.

• They act both inside and outside the cells that produce them.

• They are subject to regulation, so enzymatic processes can be easily controlled.

Then in conclusion, enzymes are part of a sustainable environment as they are completely biodegradable, they do not require heat or corrosion for their operation, they replace or at least reduce the use of polluting chemical substances and their production is carried out in an ecological way. from living organisms.

Introduction to enzymatic biological treatments of wastewater In view of the traditional process of wastewater treatment, the separation between the sludge and the treated water is known as settling. However, very often the sludge does not have the necessary conditions to settle and the efficiency of the treatment is substantially affected.

Through enzymatic biological treatment, the sludge generated is reduced by up to 70%, and this process is also free of chemicals that can convert sludge into hazardous waste not suitable for reuse, thus providing two clear advantages such as improved sedimentation and improved thickening and dewatering of sludge.

By solubilizing organic matter, we make it available so that it can be used by living beings in their growth or operation.

A second effect of this digestion is that the basic constituents of organic matter (amino acids, monosaccharides, fatty acids, etc.) are much more useful to organisms than the complex biomolecules from which they originate.

Medicines administered to humans and animals are partially metabolized, others are not degraded and are finally eliminated from the body.

This mixture of metabolites and non-degraded drugs enters the wastewater treatment system and depending on its intrinsic stability, some molecules cannot be removed during treatment. However, with the enzymatic biological treatment there is a transformation making them completely innocuous for all living beings in a natural way.

Finally, as it is an enzymatic treatment, there is no type of clash between the bacteria used in the wastewater treatment plant and the biological formula supplied, thanks to the synergy established between the microorganisms that we incorporate with the existing ones.

Then by way of conclusion and summary, the "Dosing device for biological treatment in the public sanitation network" consists of transforming a passive system such as the public sanitation network itself, normally loaded with organic matter, detergents and chemical products that they produce bad odors, deteriorate or even obstruct the pipes, in an active system like a biological reactor, although without electrical consumption or chemical products, clean of clogs and bad odors, which provides the following advantages compared to the state of the art;

A By using a mixture of bacteria or enzymes that are not genetically treated but are found in nature, it is easier to obtain totally natural and reusable treated water.

A Contribution to the reduction of the parameters and pollutants that reach the sewer network, both urban and industrial in nature.

a Cost reduction, especially energy, contributing to the reuse of treated water, so essential for our development and well-being.

a Reduction of the pollutant load to be treated in the treatment plant, while avoiding bad odors in manholes, sewage clogging, increased rat population, etc.

a Reduces the costs of the different interventions in the sewerage network.

a Reduction of the parameters of pollutants in water, also eliminating chemical products and medicines, without this implying an increase in the cost associated with the treatment of the integral water cycle.

EXPLANATION OF THE INVENTION

By way of explanation of the invention, the "Dosing device for biological treatment in the public sanitation network" is based on its placement in the manholes or wells from which the pipes through which the wastewater flow is accessed. , by means of a set of refillable dispensers of a composition of different bacteria or enzymes, in number, volumes and periodicity adapted to the flow to be treated, the pollutant load and the nature of the network itself, so that the volume contained in the referred The doser is deposited in the spill periodically in the form of drops until the sewer network itself becomes a biological reactor.

Taking into account that each drop contains a trillion bacteria that, in turn, multiply every twenty minutes, it is a question of assigning an adequate dosage, depending on the sanitation network that is pretreated, which increases the presence of bacteria in the residual water that circulates through the network itself, until the sewerage network itself becomes a biological reactor that carries out a first elimination of the polluting elements.

Thus, a submersible and autonomous dosing device is proposed for the treatment of wastewater in the urban sanitation network, arranged according to an enclosure and aquatic protection that contains in its interior the following elements;

A. An accumulation tank designed to contain the mixture of bacteria or enzymes.

B. An electronic board where the dosage is adjusted with the help of a stopwatch.

C. A dosing pump connected to the corresponding battery that provides the electrical current for its operation.

DESCRIPTION OF THE DRAWINGS

To complement 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 a practical embodiment thereof, a set of drawings is attached as an integral part of said description. For illustrative and non-limiting purposes, the following has been represented:

Figure 1.- Main view of the interior of the submersible and autonomous dosing device for wastewater treatment in the urban sanitation network.

Figure 2.- Main exterior view of the submersible and autonomous dosing device for wastewater treatment in the urban sanitation network, with its lid conveniently closed.

In the aforementioned figures the following constituent elements can be highlighted;

1. Accumulation tank designed to contain the bacteria mixture inside.

2. Electronic plate for dosage adjustment.

3. Stopwatch.

4. Dosing pump

5. Power supply battery.

6. Suction tube with connection to float.

EXAMPLE OF PREFERRED EMBODIMENT

As a preferred embodiment, the "Dosing device for biological treatment in the public sanitation network" can be carried out for its application in the treatment prior to the wastewater being received in the corresponding wastewater treatment station. of an urban agglomeration in which twenty main canalization branches have been arranged in which an average of 270 mA3 per day is managed.

Specifically, based on the biological oxygen demand or biochemical oxygen demand (BOD) of 420, they have been arranged for a continuous dosage of one month duration according to a drop at intervals of five minutes for each dispenser until its replacement, a total of twelve one-liter capacity dispensers that contain a mixture of bacteria that are suitable and completely harmless to living beings and to be placed in interspersed branches to design a dosage that is as homogeneous as possible, making use of some of the corresponding existing manholes or wells , located upstream of each branch.

Then it is a matter of applying a treatment based on a dosage of a mixture of bacteria, throughout the 365 days of the year, 24 hours a day, making use of dosing and autonomous devices designed for this purpose.

Thus, the autonomous and submersible dosing device and as can be seen in figures 1-2, have been arranged inside an enclosing box (7) of dimensions 20 X 26 X 8 cm, in order not to obstruct the personnel access to the sewer network itself, to house the corresponding accumulation tank (1) with a capacity of one liter, an electronic board (2) where the dosage provided is programmed with the help of a timer (3 ), a dosing pump (4) powered by the corresponding 6-volt battery (5).

Finally, since the dispenser must be installed inside the manholes or wells where the water level can occasionally reach, to guarantee the normal operation of the dosage process without mixing the water from the network itself with the contents of the tank. accumulator (1), has been connected to the filler cap of the container to a tube ending in a buoy (6) that guarantees that at the exit of the dosage the volume released inside the container (1) is complemented by the air that enters through the free end of the tube that is in the vicinity of the buoy (6).

Once the custom treatment has been designed and after the assembly of the dosing equipment, with its operation and the important work carried out by the operating companies, we ensure that the aquifers remain in an optimal state, free of pollutants, chemicals and medicines. , that daily atrophy it, killing the living beings that inhabit them.

Obviously, in order to carry out the treatment properly, one must have access to a mixture of enzymes that operate properly, for which it is necessary first to have a suitable strain identified and secondly to maintain or have access to a suitable strain. infrastructure in which it manages its reproduction.

Finally, it is evident that the aforementioned treatment based on the previously existing sanitation and treatment infrastructure, the objectives pursued and its budgetary availability, will be adapted to the client's needs, contributing, in any case, through the application of the previous treatment object of the present invention, to the sustainability of the water network from the environmental point of view and to cost savings.

It is not considered necessary to make this description more extensive so that any expert in the field understands the scope of the invention and the advantages derived from it in its different applications, the mixture of bacteria or enzymes used in the treatment, with respect to the Dosing device its shape, materials used, dimensions, designs, elements that it incorporates, its connections or technology that implements it, will be susceptible to variation as long as this does not imply an alteration in the essentiality of the invention. The terms in which the specification has been described are to be understood in a broad and non-limiting sense.

Claims (1)

1.- Device for biological treatment in the public sanitation network, by placing it in the manholes or wells from which access is made to the pipes through which the wastewater passes, characterized by its configuration according to an enclosing and aquatic box protection that contains the following elements inside: A. An accumulation tank for the liquid to be dosed, designed with a compensation vent, even available for situations in which the whole assembly is below the water level of the network itself; connecting the filling cap of the accumulation tank to a suction tube with connection to a float, so that, when the water level reaches the dispenser, the volume released inside the accumulation tank is complemented by the air that enters through the free end of the tube located in the vicinity of the buoy. B. An electronic board where the dosage is adjusted with the help of a stopwatch. C. A dosing pump connected to the corresponding battery that provides the electrical current for its operation.