RU132793U1 - STATION OF DEEP BIOCHEMICAL CLEANING OF HOUSEHOLD WASTE WATER - Google Patents

Abstract

1. Station for deep biochemical treatment of domestic wastewater, comprising a housing in which a three-chamber sump is placed, a bioreactor with submerged loading material containing an aeration element, a laminar sump, a coagulation system, a sludge disinfection system, a clean water removal system, a hydraulic collection system and sludge return, characterized in that the casing and other structural elements and station parts in contact with waste water are made of a corrosion-resistant material, for which polypropylene is used, and the fact that the bioreactor loading material containing an aeration element is made of biological material, which are biocenoses of attached and freely floating microorganisms adapted for action under aerobic and anaerobic conditions. 2. The station according to claim 1, characterized in that the casing is made of polypropylene, which is a porous structure. The station according to claim 2, characterized in that the polypropylene of the station body contains additives adapted to protect against ultraviolet rays. The station according to claim 2, characterized in that the walls of the body are made end-to-end from separate sheets of polypropylene of a porous structure, connected by ends to each other by means of fasteners located in the pores of polypropylene. The station according to claim 4, characterized in that the walls of the casing are composed of individual sheets of polypropylene of a porous structure, arranged in rows, and located with a shift of adjacent rows relative to each other. The station according to claim 4, characterized in that as a means

Description

The technical field to which the utility model belongs.

The utility model relates to the field of wastewater treatment, namely to stations for deep biochemical treatment of domestic wastewater, containing a housing in which there is a three-chamber sump, a bioreactor with immersed loading material containing an aeration element, a laminar sump, a coagulation system, and a disinfection system sludge, clean water removal system, hydraulic system for collecting and returning sludge and can be used for complete biological treatment of household items and those close to them I will leave the wastewater of separate buildings, infrastructure and other autonomous (decentralized) sewage systems.

Here, the term “top and bottom” is used everywhere as indications of direction parallel to gravity, respectively, “down” - directed along gravity, “up” - against.

The level of technology.

A station for deep biochemical treatment of domestic wastewater is known from the prior art, comprising a housing in which there is a three-chamber sump, a bioreactor with submerged loading material containing an aeration element, a laminar sump, a coagulation system, a sludge disinfection system, a clean water removal system, and a hydraulic sludge collection and return system (see description from the website of the manufacturer of the deep biochemical treatment of domestic wastewater “Alta Air Master Pro” http: //www.alta-gr oup.ru/altaairmasterpro.html)

This device is the closest in technical essence to the claimed utility model and is taken as a prototype for the proposed utility model.

The disadvantage of this device is the low technical characteristics of the station, due to the fact that the material from which it is made is heavy, has low thermal insulation properties, and is subject to deformation. In addition, the biofuel material of the station also has low technical characteristics.

Disclosure of a utility model.

Based on this original observation, the present utility model mainly aims to propose a station for deep biochemical treatment of domestic wastewater, which allows at least smoothing at least one of the above disadvantages, namely, to increase the technical characteristics of a station for deep biochemical treatment of household wastewater water

To achieve this goal, the casing and other structural elements and station parts in contact with wastewater are made of a corrosion-resistant material, which is used as polypropylene.

Thanks to this advantageous characteristic, it becomes possible to lighten the weight of the station, since polypropylene is a light material, it also has high thermal insulation properties and is practically not subject to deformation. It is very simple to attach or weld the internal partitions to it, and it is well cooked with a hairdryer or extruder.

In addition, the bioreactor loading material is made of biological material, which is used as biocenoses of attached and freely floating microorganisms adapted for action under aerobic and anaerobic conditions.

Thanks to such an advantageous characteristic, it becomes possible to use both attached and freely floating microorganisms adapted for action under both aerobic and anaerobic conditions, which makes it possible to increase the technical characteristics of biological material.

There is a variant of the utility model in which the housing is made of polypropylene, which is a porous structure.

Due to this advantageous characteristic, it becomes possible to further reduce the weight of the station, since porous polypropylene is lighter than usual.

There is a variant of the utility model in which the polypropylene of the station housing contains additives adapted to protect against ultraviolet rays.

Thanks to such a favorable characteristic, it becomes possible to provide protection from the best ultraviolet exposure to solar on the station case.

There is a variant of the utility model in which the walls of the body are made end-to-end from separate sheets of polypropylene of a porous structure, connected by ends to each other by means of fasteners located in the pores of polypropylene.

Due to this advantageous characteristic, it becomes possible to secure individual sheets of polypropylene between themselves.

There is a variant of the utility model in which the walls of the housing are composed of separate sheets of polypropylene of a porous structure stacked in rows and arranged with a shift of adjacent rows relative to each other.

It is this arrangement, which can conditionally be called laying according to the “brickwork” type, which makes it possible to increase the strength of the station building, which is especially important during transportation and installation of the station, for example, when it is being operated with a crane.

There is a variant of a utility model in which bolts with nuts are used as a means of securing individual sheets of polypropylene of a porous structure.

Due to this advantageous characteristic, it becomes possible to secure individual sheets of polypropylene between themselves in the simplest way.

There is a variant of a utility model in which biological material is used as biocenoses of attached and freely floating microorganisms adapted for action under aerobic and anaerobic conditions, including autotrophic and heterotrophic microorganisms.

Thanks to such a favorable characteristic, it becomes possible to use both autotrophic and heterotrophic microorganisms, which allows to increase the technical characteristics of biological material.

There is a variant of the utility model in which a bioreactor containing an aeration element is located in the upper part of the station body, above the aeration element, which in turn is located above the hydraulic system for collecting and returning sediment.

This arrangement provides the optimal concentration of microorganisms in the bioreactor, which is automatically maintained at a certain level, and this level is several times higher than the concentration of microorganisms in the prototype. Due to this arrangement, ascending air flows tear off light microorganisms and lift them up, while heavy ones go down and enter the hydraulic system for collecting and returning sediment, where they are mixed with sludge, which returns to the primary chamber.

The set of essential features of the proposed utility model is unknown from the prior art for devices of similar purpose, which allows us to conclude that the criterion of "novelty" for the utility model is met.

A brief description of the drawings.

Other distinguishing features and advantages of the utility model clearly follow from the description below for illustration and not being restrictive, with reference to the accompanying drawings, in which:

- figure 1 schematically depicts a functional diagram of a station for deep biochemical treatment of domestic wastewater, a top view, according to a utility model.

- figure 2 schematically depicts the mounting between the elements of the hull of the station for deep biochemical treatment of domestic wastewater, according to the utility model.

- figure 3 schematically depicts the relative position of the bioreactor, aeration element, a hydraulic system for collecting and returning sediment, in side view according to a utility model

According to figures 1, 2 and 3, the station for deep biochemical treatment of domestic wastewater includes a building 1, which houses a three-chamber sump, a bioreactor with submerged loading material containing an aeration element, a laminar sump, a coagulation system, a sludge disinfection system, and a removal system clean water, hydraulic system for collecting and returning sludge.

Advantageously, a more detailed station arrangement is as follows.

The three-chamber sump consists of a primary receiving chamber 2, which is equipped with a sediment disinfection module 3. The special Alta ovicide preparation is dosed into the primary receiving chamber.

The three-chamber sump also consists of a pre-aeration chamber 4. In a pre-aeration chamber 4, aerobic runoff treatment processes are initiated, as well as runoff nitrification. The precipitating chemical Alta in the liquid fraction is also fed here. The coagulant is dosed strictly in accordance with the actual performance of the station.

The station includes a primary laminar sump 5. In the chamber of the laminar sump, additional sediment is deposited, the formation of which is caused by the action of a coagulant. The delayed sediment together with the pre-nitrified runoff is sent to the primary receiving chamber-drive 2.

The primary laminar sump 5 is connected to the bioreactor 6 with the immersed loading material 7. In the bioreactor 6 there is an aeration element 8 designed for the forced saturation of water with oxygen from the air.

The station also includes a secondary laminar sump 9 and a secondary aerobic-biofilter 10, as well as a tertiary laminar sump 11, which is designed to hold loose biomass particles from the bioreactor.

The station uses a highly efficient design of a mechanical sorption filter 12. The station also includes a clean water chamber 13 and an ultraviolet disinfection unit 14 containing an ultraviolet lamp 15. In bactericidal installations, sources of continuous ultraviolet radiation are applied that act on the aqueous medium through a special material in a range of lengths waves 180-300 nm.

The station is equipped with two high-performance pumps - the main and standby, organized in a group. Pumps work in turn, evenly developing their life.

The station also includes a pressure filter 16, adapted for pumping water into it. The pressure filter 16 is loaded with a special Alta Sorbent charge, in which the final purification of water to the concentration of substances in it that meets the requirements for discharge into fishery reservoirs takes place. A six-way valve is located on the filter to flush the load. The flushing moment is determined by the values on the filter gauge.

The station also includes an aerobic stabilization chamber for excess sludge 17 and a well for collecting and returning sludge 18.

Additionally, FIG. 1 shows a service well 19, an equipment compartment 20, a coagulant 21, a compressor 22.

For the notification and remote control of the sewage treatment plant and for the timely warning of emergency situations, the station can be equipped with an SMS notification system and remote control of the sewage treatment plant. The system monitors the availability of external power supply, the presence of chemicals, temperature control, notifies the need for pumping sludge, protects the equipment compartment from leakage and flooding. The system provides remote control of the system power, enable / disable emergency and backup pumps, enable / disable sound / light alarms.

The station can also be equipped with an alarm system. The specified control is carried out by means of level sensors installed in the station. The sensors are installed in the receiving chamber 2, in the chamber of the bioreactor 6 and in the chamber with clean water 13. When the upper threshold of the level sensors is reached, the alarm console located in the control room lights up alarm indicators for emergency excess of the liquid level in the corresponding tank and a warning signal is generated.

The station body and other structural elements and station parts in contact with waste water are made of a corrosion-resistant material, which is used as polypropylene.

Advantageously, the polypropylene is a porous structure, and the polypropylene of the station body contains additives adapted to protect against ultraviolet rays.

According to figure 2, the walls of the body are made end-to-end from individual sheets 23 of a porous structure polypropylene, which have recesses 24. The sheets 23 are interconnected by means of fastening located in the pores-recesses of the polypropylene. As a means of fastening individual sheets of polypropylene of a porous structure, welding is used, the welding location is shown in figure 2 as 25, as well as bolts with nuts 26.

Mostly the walls of the casing are composed of individual sheets of polypropylene of a porous structure stacked in rows and arranged with a shift of adjacent rows relative to each other, which improves the strength of the station casing.

The loading material of the bioreactor is made of biological material, which is used as biocenoses of attached and freely floating microorganisms adapted for action under aerobic and anaerobic conditions.

Biological material used as biocenoses of attached and freely floating microorganisms adapted for action under aerobic and anaerobic conditions includes autotrophic and heterotrophic microorganisms.

Such a variety of microorganisms is especially important in order to improve the quality of wastewater treatment. Increasing the diversity of the types of microorganisms that feed on impurities contained in wastewater, the parameters of wastewater treatment increase.

According to figure 3, a bioreactor 6 with immersed loading material 7, containing an aeration element 8, is located in the upper part of the station building 1, above the aeration element 8, which in turn is located above the hydraulic system for collecting and returning sediment. The figure shows only these elements to facilitate understanding of their relative position. In addition, it is indicated: - a pipe of a hydraulic system for collecting and returning sludge, through which precipitated sludge enters the well for collecting and returning sludge 18, in which pump 28 is located. Air bubbles are indicated as 29. The arrows indicate the direction of drawing in of the deposited sludge.

Implementation of a utility model.

Station deep biochemical treatment of domestic wastewater works as follows. All elements of the station are located underground.

Domestic wastewater enters the receiving chamber-drive 2. In this chamber there is an accumulation of insoluble suspended solids coming from wastewater. At the same time, anaerobic denitrification processes take place in this chamber, the purpose of which is to remove nitrogen from the drain. Overflows in the storage chamber are arranged so that the wastewater flows at the lowest speed, due to which coarse suspended particles settle to the bottom in each chamber.

The receiving storage chamber 2 is equipped with a sediment disinfection system. The special Alta ovicidal preparation is dosed into the first storage chamber in accordance with the actual capacity of the station and completely destroys the helminth eggs in the sediment within 6 hours from the last runoff, which ensures the safety of direct contact with the sediment during station maintenance and allows further use the sediment, for example, for processing into fertilizers.

In the pre-aeration chamber 4, aerobic runoff treatment processes are initiated, and runoff nitrification also takes place. The precipitating chemical Alta in the liquid fraction is also fed here. Coagulant 21 is dosed strictly in accordance with the actual performance of the station. The task of the coagulant is to carry out the chemical binding of the phosphates present in the effluent, as well as to improve the efficiency of precipitation in the subsequent chamber of the laminar sump.

In the chambers of the laminar sump 5, 9, 11, an additional sediment precipitates, the formation of which is caused by the action of the coagulant. The delayed precipitate, together with the pre-nitrified runoff, is sent to the storage chamber. Precipitation of suspended particles in the laminar sump is up to 4 times more efficient than in a conventional sump.

After the laminar block 5, clarified wastewater flows by gravity into the upper part of the bioreactor 6 and is evenly distributed over the entire area of the biological load. The station implements an environmentally friendly technology for deep biochemical wastewater treatment with biocenoses of attached and freely floating autotrophic and heterotrophic microorganisms operating under aerobic and anaerobic conditions, with automatic maintenance of activated sludge concentration in aeration tank and primary settling tank 2. Also, at the time of distribution, the wastewater is saturated with oxygen . Biological filter (biofilter) - a structure in which waste water is filtered through a feed material coated with a biological film (biofilm) formed by colonies of microorganisms. The aeration element 8 is installed in the biofilter, designed for the forced saturation of water with oxygen from the air.

In the secondary laminar sump 9, the suspended particles contained in the drain, as well as the particles of detached biomass, are retained along with the processes of runoff denitrification. The high efficiency of the laminar sump allows you to achieve high levels of purification of runoff from suspended particles.

Secondary aerobic biofilter 10 completes the process of aerobic treatment of runoff and brings the cleaning to the required levels. The bioflora of the secondary biofilter 6 adapts to the specific persistent contaminants in stock. When contaminants are contained in the effluent, the decomposition of which requires specific bacterial cultures, the secondary biofilter is designed to populate them.

The tertiary laminar sump 11 is designed to retain detached particles of biomass from the bioreactor 6.

The station uses a highly efficient mechanical sorption filter design. Passing through the filter, the water is purified to the required indicators for suspended solids and oil products.

The purified water enters the clean water chamber 13, where the necessary volume of pre-treated water is accumulated for purification in the ultraviolet disinfection unit 14.

Water is supplied to the pressure filter 16 by pumps. The pressure filter 16 is loaded with a special Alta Sorbent charge, in which the final purification of water to the concentration of substances in it that meets the requirements for discharge into fishery reservoirs takes place. On the filter 16 is a six-way valve for washing the load. The flushing moment is determined by the values on the filter gauge.

Ultraviolet disinfection allows you to almost completely destroy pathogenic microorganisms.

During the operation of bioreactors 6 10, the spent and dead biofilm (excess sludge) is washed off and removed from the body of the biofilter to the bottom of the chamber, as well as deposited at the bottom of the laminar sedimentation tanks 5, 9 and 11. Then, the excess sludge is removed using a hydraulic system for collecting and returning sediment in the stabilization chamber of excess sludge 17, where the aerobic process of its stabilization and mineralization takes place. The oxygen necessary for the biochemical process enters the chamber by supplying air through aerators 8. Stabilized sludge is returned to the receiving chamber of the treatment plant 2.

Thanks to the hydraulic system for collecting and removing sludge, the station has implemented a self-balancing mechanism for maintaining the concentration of activated sludge in the biofilter aeration tank. Sludge collection and disposal works according to a program that takes into account the daily unevenness of the flow. The collected sediment enters the aerobic stabilization chamber of the sediment, where it is finally decomposed and mineralized.

Industrial applicability.

The proposed station for deep biochemical treatment of domestic wastewater has a clear purpose, can be carried out by a specialist in practice, and when implemented, ensures the implementation of the declared purpose. The possibility of being implemented by a specialist in practice follows from the fact that for each feature included in the formula of a utility model based on the description, a material equivalent is known, which allows us to conclude that the criterion of "industrial applicability" for the utility model is met.

In accordance with the proposed utility model, on behalf of the applicant Alta Group LLC, a prototype station for deep biochemical treatment of domestic wastewater was manufactured on the basis of the manufactured Alta Air Master Pro station.

As elements of the casing, sheets of Czech cellular foamed polypropylene with a thickness of 3, 6, 8, 10 and 20 mm were used.

Segments with a size of 1000 × 1000 × 80 mm were assembled in a box using stainless steel bolts, and the joints were additionally welded with an extruder.

The remaining structural elements and station parts in contact with waste water were made of a corrosion-resistant material, which was used polypropylene

The loading material of the bioreactor was made of biological material, for which biocenoses of attached and freely floating microorganisms adapted to action under aerobic and anaerobic conditions were used and also included autotrophic and heterotrophic microorganisms.

Additionally, the bioreactor 6, containing the aeration element 8, was located in the upper part of the station building 1, above the aeration element 8, which in turn was located above the hydraulic system for collecting and returning sediment.

The pilot operation of this utility model showed:

- improving the technical characteristics of the station for deep biochemical treatment of domestic wastewater due to the fact that the shell material is made of polypropylene, namely:

- due to voids it is easier;

- has the best thermal insulation properties;

- bends well while the material itself is not deformed;

- due to the addition of special ultraviolet stabilizing additives, it is not exposed to the negative effects of sunlight;

- it is well cooked with a hairdryer or extruder;

- the case is very durable and airtight;

- the ability to easily weld anything inside the partition wall, pipes, profiles, etc. is allowed.

- increases the strength of the housing structure due to the shift of the housing elements relative to each other.

- improving the technical characteristics of the deep biochemical treatment plant for domestic wastewater due to the variety of bioreactor loading material, which is fed by a large number of suspended particles;

- increase in general and maintaining the optimal concentration of microorganisms in the bioreactor, which is automatically maintained at a certain level. This level is 10-15 mg / l.

Thus, it is recommended to use a station for deep biochemical treatment of domestic wastewater to treat runoff from residential complexes, hotels, boarding houses, sanatoriums, complexes of residential buildings, cottage villages, microdistricts, settlements, etc.

Claims (8)

1. Station for deep biochemical treatment of domestic wastewater, comprising a housing in which a three-chamber sump is placed, a bioreactor with submerged loading material containing an aeration element, a laminar sump, a coagulation system, a sludge disinfection system, a clean water removal system, a hydraulic collection system and sludge return, characterized in that the casing and other structural elements and station parts in contact with waste water are made of a corrosion-resistant material, which is used as polypropylene, and the fact that the bioreactor loading material containing an aeration element is made of biological material, which uses biocenoses of attached and freely floating microorganisms adapted for action under aerobic and anaerobic conditions. 2. The station according to claim 1, characterized in that the casing is made of polypropylene, which is a porous structure. 3. The station according to claim 2, characterized in that the polypropylene of the station body contains additives adapted to protect from ultraviolet rays. 4. The station according to claim 2, characterized in that the walls of the body are made end-to-end from separate sheets of polypropylene of a porous structure, connected by ends to each other by means of fasteners located in the pores of the polypropylene. 5. The station according to claim 4, characterized in that the walls of the casing are composed of individual sheets of polypropylene of a porous structure, arranged in rows, and located with a shift of adjacent rows relative to each other. 6. The station according to claim 4, characterized in that as a means of fastening individual sheets of polypropylene of a porous structure, bolts with nuts are used. 7. The station according to claim 1, characterized in that the biological material, which is used as a biocenosis of attached and freely floating microorganisms adapted for action under aerobic and anaerobic conditions, includes autotrophic and heterotrophic microorganisms. 8. The station according to claim 1, characterized in that the bioreactor containing the aeration element is located in the upper part of the station body above the aeration element, which, in turn, is located above the hydraulic system for collecting and returning sediment.

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