The modern complex of treatment facilities "Biosfera" will begin work in autumn at the refinery. Sergei Sobyanin: The Moscow Oil Refinery has implemented the largest environmental project "Biosphere" Biological wastewater treatment plants "Biosphere"

  • Vertical version from 0.6 - 2 m 3 / day. (energy saving, does not work all the time)
  • Horizontal version from 0.6 - 300 m 3 / day. (works all the time)

The system is volatile, it works constantly, in case of a power outage it works offline for up to a week, the degree of purification drops. The minimum service life is 50 years. It is made of high-strength polypropylene, the Czech production. High degree of purification of HBSW up to 98% of technical effluents.

The biological treatment station "BIOSPHERA" needs maintenance no more than once a year - the rest of the time it is completely autonomous in operation. VOC is equipped with a system of protection against large debris.

Laboratory studies were carried out on wastewater treatment VOC "BIOSPHERE" Results of the study:

NAME before cleaning after cleaning
Suspended solids (mg/l) 168.9±1.1 2.5±0.1
Oil products (mg/l) 2,9 0,03
Ammonium nitrogen (mg/l) 6,1 0,3
BOD5 (mg/l) 22,3 1,6
surfactant (mg/l) 22,8 0,16
Nitrites (mg/l) 0,4 less than 0.005
Nitrates (mg/l) 18.1 1,2
Phosphates (mg/l) 2,8 0,1
  • The cleaning efficiency for suspended solids was -98.5%
  • The cleaning efficiency for oil products was -98.96%
  • The purification efficiency for ammonium nitrogen was 95%
  • BOD Cleaning Efficiency5 was -92.8%
  • The cleaning efficiency for surfactants was -94.28%
  • The nitrite cleaning efficiency was at least 98.75%
  • Phosphate cleaning efficiency was -96.4%

These studies of wastewater treatment are confirmed by certificates.

in horizontal version:

LOS "BIOSPHERE" of horizontal design 0.6 - 60 m 3 / day, from 3 - 300 people of permanent residence.

Water disposal methods: gravity / forced

The stations are equipped with diaphragm compressors "HIBLOW" by the Japanese manufacturer Techno Takatsuki or "SECOH" by the Japanese manufacturer Secoh Sangyo Co Ltd. Inside the system, in a separate sealed compartment, there is a control unit in which the compressor is installed.

The operation of the installation includes the sequential passage of waste water through the sections of mechanical and biological treatment. Effluent first enters the receiving chamber for mechanical treatment, where sand and other insoluble impurities are deposited. Next, wastewater enters biological treatment, due to the ability of microorganisms to use some pollutants as a source of nutrition. Biological treatment is carried out in two stages: in the absence of oxygen (anaerobic) and in the presence of dissolved oxygen (aerobic).

Autonomous sewerage, septic tank, LOS "BIOSPHERE" of horizontal design

Particularly important in anaerobic treatment is the removal of nitrogen from the water, which has an extremely negative effect on the fauna of reservoirs. When the effluents pass through an anaerobic bioreactor with a ruff bioload due to enzymes produced by microorganisms, the ammonium ion is formed from organic compounds. Nitrogen is used for the growth of microorganisms, and thus part of the inorganic nitrogen passes into the newly formed bacterial cells. Then, wastewater containing ammonium nitrogen enters the aerotank, where the ammonium ion is nitrified by activated sludge microorganisms into nitrite and nitrate forms:

NH4++2O-2 =NO2- +2H2O

2 NO2-+ O-2 = 2 NO3-

In the secondary clarifier, nitrifying activated sludge is deposited, it is recirculated to a septic tank - a sludge mineralization chamber, and the remaining organic compounds are oxidized by nitrates. In this case, free nitrogen is released, which is discharged through the duct.

Further purification is carried out in a brush-loaded biotank, the bottom part of which is equipped with an aerator. Due to the access of oxygen to the load, aerobic microorganisms develop, which are necessary for the absorption and oxidation of contaminants. The next step is to calm the sludge mixture and settling it on the bottom of the tertiary clarifier. The purified wastewater is separated from the activated sludge, which, as it accumulates, is removed from the sump.

Purified water is diverted to the nearest watercourse. If necessary, wastewater can be discharged into a reservoir (a well made of metal or reinforced concrete rings). When discharging treated effluents for fisheries, an additional UV lamp is installed.

Let's consider in more detail the work of Los "BIOSPHERE"

in vertical version:

A submersible Karcher pump (manufacturer Germany) is installed in the vertical execution system. Drainage methods: gravity / forced

Autonomous sewerage, septic tank, VOC "BIOSPHERE" vertical design

Principle of operation:

Wastewater treatment in the BIOSPHERE sewer system takes place in two stages:

1. The first stage consists in the settling of suspended particles in a three-chamber settling tank. The sump consists of 3 separate sections with overflows through which sewage flows flow. The overflows are located in such a way that the wastewater flows at the lowest speed, due to which coarse suspended particles settle to the bottom in each chamber. The first capacity is single-chamber and maximum volume, the second and third are the same. So, for example, the volume of the chambers of the BIOSPHERE 5 installation is 800 l, 400 l and 400 l, and, accordingly, the total volume of the sump is 1.6 m3.

2. The second stage of post-treatment in the bioreactor - from the third chamber, clarified wastewater is pumped to the upper part of the unit through a sprayer with the help of a drain pump operating on a timer (15 min. / on - 45 min. / off.) and evenly sprayed over the entire area of ​​the brush downloads. Also, at the time of spraying, wastewater is saturated with oxygen. A bioreactor is a structure in which waste water is filtered through a feed material covered with a biological film (biofilm) formed by colonies of microorganisms. Further, part of the water saturated with bioorganisms returns to the first chamber, which makes it possible to accelerate the process of decomposition and sedimentation of suspended particles. The main volume of purified water is returned to the third chamber. The selection for the outlet of purified water from the installation comes from the middle part of the third chamber. This process prevents the sludge from the bottom and dead bacterial colonies floating on the surface from leaving the unit.

The processes of sorption and destruction of sewage contaminants in biological filters are in many respects similar to the processes in soil treatment facilities in irrigation fields and filtration fields. However, the processes of biological oxidation of organic pollutants in biofilters proceed much more intensively due to the increased porosity of the feed material compared to the porosity of soils. So, for example, the porosity of brush loading is ten times higher than the porosity of sand, one of the best natural materials for irrigation fields.

Filtered through the biofilter loading, polluted water leaves insoluble impurities in it that have not settled in the primary and secondary clarifiers, as well as colloidal and dissolved organic substances sorbed by the biological film. The term "filtration" should not be simplified to understand only the processes of mechanical filtering through the thickness of the feed material. A biofilter is a biological treatment facility with a fixed biomass fixed on the surface of a carrier medium (feed material), which carries out the processes of extraction and complex biological processing of contaminants from wastewater. Biofilm microorganisms oxidize organic substances in the process of enzymatic reactions, while receiving nutrition and energy necessary for their life activity. Part organic matter microorganisms use as a material to increase their mass. Thus, in the process of metabolic reactions, contaminants are converted into simple compounds (water, mineral compounds and gases), as a result, organic contaminants are removed from waste water, denitrification processes take place, and the mass of the active biological film in the body of the biofilter increases. The spent and dead film is washed off and removed from the body of the biofilter by the flowing sewage. Required for biochemical process oxygen enters the thickness of the load by natural ventilation of the filter.

Attention!!! The manufacturer reserves the right to make changes to various design parameters without compromising performance.

Ecologists public organization The "Green Patrol" visited the Moscow Oil Refinery and took samples of wastewater, which were sent for analysis to an independent state chemical laboratory. Already in the fall, the refinery will start operating new treatment facilities "Biosfera": a modern biological complex will expand the composition of the plant's water treatment plants and will destroy almost all pollutants. After the launch of the "Biosphere", environmentalists will again come to the refinery, make a new sampling and analysis of wastewater - in order to compare them with the first sample. This will make it possible to verify the effectiveness of the new treatment complex and the environmental technologies used at the plant.

The construction of the Biosfera treatment facilities complex is one of the stages of the enterprise’s modernization and an important part of the environmental protection program that the owner of the plant, Gazprom Neft, has been implementing since 2011. The territory of the plant, where the Biosphere is now being built, was previously considered environmentally unfavorable. But for last years the situation has changed radically: according to Andrei Nagibin, chairman of the board of the all-Russian public organization Green Patrol, the Moscow Oil Refinery may well qualify for a Green Certificate.

This decision will be made after studying the information and monitoring the operation of the installation. But the openness of the enterprise and the demonstrated technologies have already been appreciated by us today, - Andrey Nagibin said. - The Moscow Oil Refinery has been under our close attention for several years. In the 90s, it was a real environmental threat to the city. Of particular concern was air pollution and groundwater pollution accumulated over 70 years on the territory of the enterprise, in the so-called "Black Sea", oil sludge. Today, on the site of this foul-smelling sludge reservoir, we see modern biological treatment facilities built. Already now there are no sharp unpleasant odors on the territory of the enterprise. There are no runoffs into the river, all open evaporation surfaces have been eliminated, water is purified with an efficiency of 95%, and after the launch of the Biosphere, there will be an almost closed cycle of water consumption.

Biosphere will use a unique technology for domestic oil refining for multi-stage wastewater treatment. First, wastewater will be driven through reliable mechanical treatment facilities that are already in operation. Then - through the "Biosphere": water will pass through the blocks of flotation, biological treatment, membrane and carbon filters, reverse osmosis unit.

Biosphere treatment facilities use special bacteria that can absorb and process oil residues, says Yuri Erokhin, head of the industrial safety and ecology department of the Moscow Oil Refinery. - Cleaned up in the end water will pass through several hundred tons of activated carbon, as well as membranes, the pores of which are the size of a water molecule.

The plant's experts have calculated that after putting the "Biosphere" into operation, the enterprise will reduce water consumption by two and a half times. Almost 75% of the purified water will be reused in production - thus creating a practically closed cycle of its consumption.

Fundamental changes at the Moscow Oil Refinery in the field of ecology began back in 2011 with the advent of a new owner, Gazprom Neft, - says Roman Pukalov, director of environmental programs at the Green Patrol organization. - Over the years, emissions of pollutants into atmospheric air, a system of integrated monitoring of their concentrations has been introduced, a huge buffer pond, the so-called "Black Sea", has been completely eliminated, and a complex of closed mechanical treatment facilities has been built. The company does not dump its wastewater into the Moscow River, but cleans it on its own and then directly transfers it to the city's wastewater treatment facilities. After the launch of the Biosphere, the load on the city's wastewater treatment facilities should be significantly reduced.

By the way, the launch of the Biosphere treatment facilities is included in the federal program of events for the Year of Ecology in Russia.

Real, tangible benefits for the country's ecology are already being brought by practical measures, such as the launch of Biosphere at the Moscow Oil Refinery, - says Andrey Nagibin, Chairman of the Board of the all-Russian public organization Green Patrol. - It is gratifying to note that the process of environmental modernization has been going on at the Moscow Oil Refinery for several years, regardless of the Year of Ecology, and will continue in the future.

HELP "KP"

250 billion rubles have been invested in the modernization of the Moscow Oil Refinery of the Gazprom Neft companies. Since 2011, thanks to the reconstruction of wastewater treatment plants, the enterprise has reduced the impact of production on environment, and reduced emissions by 36%. It is planned that after the implementation of the next stage of environmental protection measures, by 2020 the impact of the plant on the environment will be reduced to almost zero.

The Moscow Oil Refinery, Moscow Oil Refinery, continues to build Biosfera, an innovative biological facility that will allow the company to achieve world-class water treatment performance and reuse up to 75 percent of industrial and storm water, a 360 channel correspondent said.


To evaluate the technologies of the future installation, the construction of which is an important part of the federal program of the Year of Ecology in Russia, the Green Patrol public environmental organization visited the plant. Its employees took control samples of treated wastewater in order to check the effectiveness of its work after the launch of the Biosphere.

"Biosphere" is a modern complex of treatment facilities that guarantee the almost complete removal of all pollutants from industrial effluents. Ecologists came to check how effective the future complex will be.

Ecologists say that ten years ago the plant could only dream of building such treatment facilities. Sewage accumulated in cesspools and their stench poisoned the life of the entire district. Everything changed in 2011 with the advent of a new shareholder - Gazprom Neft. A large-scale modernization began at the Moscow Oil Refinery, as a result of which, at first, a modern closed-type plant was built on the site of outdated treatment plants. The enterprise does not have any direct flows into the river, and all water from industrial complexes and storm sewers is purified at the plant, and only then goes through pipes to the city's wastewater treatment facilities. But the plant plans to increase the efficiency of water treatment and soon Biosfera will be added to modern closed mechanical treatment plants. In it, bacteria specially bred for this purpose will purify the water.

We simultaneously use membrane bioreactor technology, which allows us to simultaneously make these facilities modern and compact, and reverse osmosis technology, which allows us to return up to 75 percent of water to production, which means that the plant’s water consumption will be reduced by actually two-thirds.

- Yuri Erokhin, head of the industrial safety and ecology department of the Moscow Oil Refinery.

Consumption river water the plant will be able to reduce by two and a half times, and the efficiency of water treatment after the launch of the Biosphere will increase to 99 percent.

The scale announced by the refinery is simply impressive. When the complex enters the operation stage, we will check again and show the population what water was and what it has become. Still, the effect will be quite serious.

- Andrey Nagibin, Chairman of the Board of the public organization "Green Patrol".

The Biosphere complex will begin its work in autumn. After that, the ecologists of the Green Patrol will once again descend on the plant to once again take water samples for analysis.

Start-up and commissioning tests of the Biosfera innovative complex of biological treatment facilities have begun at the Gazprom Neft Moscow Oil Refinery. Moscow Mayor Sergei Sobyanin and Chairman of the Management Board of Gazprom Neft Alexander Dyukov visited the new production facility of the Moscow Refinery.

The construction of the Biosfera unit is an environmental project of a comprehensive program for the modernization of Gazprom Neft's oil refining assets, one of the key priorities of which is the gradual reduction of the production load on the environment. The construction of "Biosfera" by order of the Government of the Russian Federation is included in the federal action plan for the Year of Ecology in Russia. Investments by Gazprom Neft in the project amounted to 9 billion rubles.

Completion of the construction of the "Biosphere" - milestone the program of environmental modernization of the plant and its final stage in terms of minimizing the impact on the aquatic environment. A unique technological system developed by domestic engineers will complete the formation of the plant's water treatment complex and increase the efficiency of wastewater treatment to 99.9%. Through the use of modern technologies, Biosfera will ensure a closed water consumption cycle and significantly reduce the load on the city's wastewater treatment infrastructure. The Moscow Oil Refinery will reduce the intake of river water by 2.5 times, and 75% of treated effluents will be returned back to production.

“The Moscow Oil Refinery is implementing a large-scale environmental program, as a result of which the level of the enterprise's impact on the environment should decrease by about 4 times. Today the next stage of modernization has been completed. Wastewater treatment facilities "Biosfera" have been built, which will ensure the most complete purification of wastewater. In addition, the company will reduce water intake from the Moskva River by 2.5 times due to the reuse of treated water within a closed cycle. This is good news for all residents of the capital and the Moscow region. Especially for those who live near the plant and go for walks in parks located in the lower reaches of the Moskva River,” said Moscow Mayor Sergei Sobyanin.
Alexander Dyukov, Chairman of the Management Board of Gazprom Neft, noted: “The Moscow Refinery is by no means the only petrochemical enterprise operating within the boundaries of Moscow, but today it is the undisputed leader in terms of the scale of changes and the dynamics of production modernization. The projects that Gazprom Neft is implementing at the Moscow Refinery solve the company's priority tasks of minimizing the impact of production on the environment, improving the technological level and operating efficiency of the refinery. By investing in innovative environmental solutions, introducing modern digital production management technologies, we are setting new standards for industrial and environmental safety, which will determine the further development of the entire Russian oil refining industry.”

Reference

"Biosfera" is a multi-stage wastewater treatment system, where industrial effluents enter after preliminary treatment at the operating mechanical treatment facilities of the Moscow Oil Refinery. At the first stage, water passes through the pressure flotation unit, where all the remaining mechanical impurities and oil products are knocked out with a powerful air flow. After the flotators, the water passes into central part plant — membrane bioreactor.

Here, wastewater is mixed with sludge, which contains microorganisms that can absorb and process oil residues. They are adapted to this environment and specially for the "Biosphere" were grown at the Lyubertsy treatment facilities of "Mosvodokanal". After the sludge has fulfilled its function, it is filtered through thousands of membranes, the pore diameter of which is smaller than a human hair. This is the most advanced water treatment solution in existence. In addition, the tank is completely waterproofed, all exhaust gases are specially treated at photoionization stations, which guarantee the complete removal of odors and pollutants. The air is first cleaned on filters, and then disinfected with ultraviolet light.

In the final stage, purified water is successively passed under pressure through 200 tons of activated carbon, and then through 1440 reverse osmosis membranes, the cell size of which is not larger than a water molecule. Only after that, purified water is returned to production, and filtered oil products are recycled. Part of the purified water is transferred through pipes directly to the city's wastewater treatment plant. The enterprise has no open drains to the Moscow River. Even rainwater is collected in the storm sewer system and treated.

  • Sergei Savenkov

    some kind of “scanty” review ... as if in a hurry somewhere