CDB ME Rubin has great experiences in development and implementation of environmental technologies and construction of engineering facility to provide environmental purity. The areas developed in this context are as follows:

• Building of oil and oil-products pollution protection facilities for sea environment;
• Development of systems and engineering techniques to provide safety of environment as well as decontamination facilities;
• Building, setup and modification of water preparation and purification systems for swimming pools, oceanariums, petroleum storage depots and car washes.

    CDB ME Rubin offers environmental equipment, such as:

• Plant for sorbent application on oil product spreads;
• Ship oily water separation plants;
• Modular plant for production of AOX-K disinfectant;
• Plant for purification of surface and industrial oil wastes;
• Modular water recycling plant for car washing;
• Plant for rehabilitation of water bodies by oxygenation and ice generation methods.

    Sorbents (biosorbents) are the most effective means for elimination of oil pollutions caused by emergency spreads of oil products when the surface layer of contamination is 0.1 to 3 mm and oil-collecting vessels or skimmers are not efficient.

    The plant created by CDB ME Rubin is designed for remote targeted application of granular sorbents (biosorbents) on spreads of oil products for their localization and subsequent collection. The plant is covered by a patent of Russian Federation under No.2255177. A specially designed tool, the hydropneumatic nozzle diaphragm, is a characteristic property of this plant. It forms so-called "water tube" and thus enables application of sorbent on the oil patch.

    The plant is a mobile functional unit and provides the possibility of fast delivery to the place of accident with subsequent localization of oil product spreads both on water surface by means of adequate floating facilities and on the coastal lands or road surfaces by means of freight transport. The onboard plant is intended for installation inside ship compartment. The equipment components are mounted on foundations and interconnected with pipelines and air ducts. The mobile plant for application of sorbents, designed as a single unit, is a functional aggregate on a support structure in the form of a frame with processing equipment secured on it.

    Advantages of the plant

• fast and effective elimination of emergency spreads of oil product with minor sorbent consumption;
• precise and uniform application of sorbent from large distances (40 to 50 meters);
• large coverage area;
• simple operation and maintenance

    Oil and oil products pose special hazard to eco-systems of seas and oceans. When contacting water surface, they form persistent spots suppressing gas exchange of water and air. With both this problem and toughened oil-containing water purification norms considered, CDB ME Rubin has designed a standard range of oil-water separation plants of NVSU type.

    Oil-containing water purification plants are designed for purification of ship oil-containing waters onboard ocean-going vessel and Naval ships. A two-stage cleaning technology based on gravity sedimentation, coalescence and pressure filtration is used in the plants. Vacuum operational mode of the separator, which enables high quality of purification of oil-containing waters, is a major advantage of the design solution adopted for the plants.

    The plants meet the requirements of Regulations for Prevention of Pollution from Vessels issued by Russian Maritime Register of Shipping as well as the requirements of Resolution MERC.60(33). Utilization of the plants enables compliance of oil wastes with the norms established by International Convention MARPOL 73/78 and Naval Environment Protection Rules of the Russian Federation. Materials, specially designed fittings and equipment provide reliable operation of plants and long service time. Plants are completely automatically operated and controlled by a local control system. Plants may be supplied as a single unit assembly secured on a frame, or in separate units.

    A low-magnetic design of the oil-containing water purification plant, NVSU-0,3ММ, with 0.3 m3 capacity was also developed by CDB ME Rubin. The plant is assembled on a common frame. This design enables advantageous arrangement of main components of the plant within the frame, easy operation and routine maintenance.

S.No.

Description

Unit of measure

Plant Identification

NVSU-0.3

NVSU-0.6

NVSU-1.6

NVSU-2.5

1.

m³/hr

0,3

0,6

1,6

2,5

2.

kg/m³

Up to 860 (without heating)

Up to 940 (with heating)

3.

%

0 to 100

4.

mg/l

maximum 5

5.

kW

0,5

0,8

1,2

1,35

6.

length

width

heigth

mm

1450

800

1680

1570

800

1680

1800

1000

1720

1900

1200

1760

    Highly efficient and environment-friendly disinfectants which facilitate efficacious hygiene and sanitary measures at water supply stations and systems of public use, patient care and child care institutions, in public catering and domestic services, etc., have been in great demand lately.

    AOX-K is the latest, environment-friendly, unique disinfectant of wide range of applications, a salt-free, concentrated aqueous solution of sodium hypochlorite.

    Field of use:

• disinfection of drinking and sewage water in municipal water and sanitary systems;
• disinfection of hospitals, maternity hospitals, swimming pools, hotels, public spaces, etc.;
• elimination of influenza, anthrax, tuberculosis, cholera and other viruses;
• using it as a disinfecting and preserving agent in food and reprocessing industries;
• decontamination of croplands, seeds, plants, stock and poultry farms;
• emergency disinfection of territories and closed water bodies in case of epidemic bacteria contamination and accidents in storing, transportation and reprocessing places for high-toxic substances;
• disinfection of living spaces, ware, linen as well as bleaching of linen.

    Advantages of the agent as compared with conventional disinfectants

• AOX-K, unlike chlorine liquid and chlorine gas, is not a toxic substance, which makes man-caused catastrophies impossible in case of its emergency leak or acts of terrorism in places of its storage and use;
• higher bactericidal capability in comparison with chlorine, chloride lime, sodium hypochlorite produced by conventional methods, and with other desinfecting agents: in particular, chlorine compound content in treated potable (tap) water reduces by 4 to 6 times as compared with chlorine liquid and gas;
• lower storage expenses due to high concentration of the agent (more than 300 g/l of active chlorine) as compared with any hypochlorite produced nowadays;
• longer storage life of concentrated agent as compared with other hypochlorites;
• possibility of application of AOX-K as a disinfectant with no salinization of treated areas (soil, water bodies) as it does not contain sodium, potassium, calcium chlorides or heavy metal salts.

    AOX-K production plants, designed by CDB ME Rubin, have capacity of 20 to 125 kg per hour of active chlorine, which provides the required amount of the disinfectant. A pilot plant with the capacity of 1.25 kg of achtive chlorine per hour passed commissioning trials successfully, and was accepted by the State Committee.

    A standard range of plants with 2.5 to 10 m³/hr capacity, developed by CDB ME Rubin, is intended for application as part of local treatment facilities for rectification of surface and industrial oil-containing waste waters. A two-stage rectification, an efficient method of purification and deep aftertreatment of oil-containing water wastes, is implemented in these plants, namely:

• thin-layer sedimentation with deposition of solid particles and collection of supernatant oil products;
• filtering using two-stage cartridge charged filter;
• deep aftertreatment on delivery filter modules;
• collection and disposal of oily deposits and sediments on recovery site.

    The possibility of a completely closed cyclic process which does not only enable rectification of oil-containing waste waters, but also provides for disposal of solid oil wastes and oil sludge using biological degradation technique, with an environment-friendly resulting product, is the most advantageous feature of the plants.

    The design of the plants provides for manufacture and supply of the equipment in prefabricated modules, which enables its installation and start-up in short time, without any associated construction and special works. The equipment of the plants is made in separate assembly units. The plant does not require permanent maintenance. The design provides safety of attending personnel during operation, maintenance and repair.

    Purification technology providing multiple re-use of detergents without drain to sewerage, is implemented in the modular car washing plant developed by CDB ME Rubin. The plants is capable of servicing of up to four cars per hour.

    The most advantageous feature of the plant is lower consumption of water and lower water drain because of the use of water recycling (cleaning, storage and multiple re-use of the detergent).

    The process flow, adopted for car washing, enables purification of the detergent using only physical methods (gravitation, filtration and ultrafiltration) without electrochemical methods such as coagulants and flocculants.

    For the purpose of detergent and fresh water saving, a two-loop water recycling system is implemented in the plant:

• the first loop is used for purification and multiple re-use of the detergent providing elimination of suspended matters and oil products;
• the second loop provides deep cleaning for the detergent in the first loop.

    Rectified detergent from the first loop is used for hand car wash. Post-treated detergent after deep final treatment in the second loop, is used for car washing with application of high-pressure equipment.

    The following operating procedures are consequently fulfilled in the plant as follows:

• sedimentation with deposition of solid particles and collection of supernatant oil products;
• filtering using a cartridge filter with sorption charging;
• accumulation, service heating of the purified detergent and supply of the detergent to car pre-wash facility;
• deep aftertreatment of detergent solutions in ultrafiltration unit;
• accumulation and supply of aftertreated detergent to high-pressure wash facility;
• collection and consoliation of solid wastes and oil-containing residues.

    Today freshwater bodies are exposed to increasing contamination. As a result, the issue of the day is the problem of development of engineering aids intended for comprehensive recovery of contaminated lakes and water bodies.

    A unique ice-generating and oxigenation plant which may be used for improvement of ecology of water bodies was developed by CDB ME Rubin. Practical works are carried out near Toroshino Lake in Luga District, Leningrad Region, the environmental condition of which is considered unsatisfactory.

    The plant has modular design which enables assembly and installation works directly on site. Operation of the plant is in autonomous mode with no maintenance staff required for a specified time limit.

    Operating modes of the plant:

    1. Saturation of lake waters with atmospheric oxygen in summer and winter time.This modes enables the following:

• acceleration of mineralization of excessive organic matters, withdrawal of them from circulation;
• reduction of biogenic transfer from bottom sediments;
• recovery of normal conditions for existence of living organisms.

    2. Generation of extra ice on the lake surface in winter time which enables the following:

• reduction of chemical oxygen demand by 10 times;
• reduction of water color index by a factor of 2 or 3;
• tenfold reduction of bacterial pollution of water;
• reduction by a factor of at least 4 of bottom sediments volume.

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