Warning Cookies are used on this site to provide the best user experience. If you continue, we assume that you agree to receive cookies from this site. OK
 

Industrial cleaning

Chemical and mechanical cleaning in production, energy and shipbuilding industry in an environmentally friendly way.

Environmental accident emergency response

Interventions in accident situations of water and soil pollution.

Waste management

Collection and treatment of industrial hazardous and non-hazardous waste.

Anti-Corrosion protection

We design, apply and perform anti-corrosion protection in production, energy and shipbuilding industry.

CCTV inspection and cleaning

Laboratory for testing sewerage and water supply systems.

Chemical production

We produce environmentally friendly chemicals for cleaning and degreasing.

Industrial cleaning

Our company has extensive experience in cleaning the storage tanks for crude petroleum, petroleum products, technological waters and similar up to 80,000 m3, dehydrators, horizontal and vertical separators, decanter, mast, neutralization basins, sewage separators, sewage tanks, tank cleaning from hazardous chemicals (acids, alkalis ...)
 
 
Mechanical cleaning
Under chemical and mechanical cleaning, we consider eliminating unwanted deposits on the plants and equipment created during their production, during their use and for the protection of surfaces, equipment and plants from undesirable chemical influences by their exploitation. Storage tanks of various media are cleaned after some time of use due to the appearance of mechanical impurities, dissolved media in the primary medium (which causes a reduction in the quality of the stored media) due to a reduction in the useful volume of storage, changing the container due to floor or wall repair of the tank, , wall condition testing, measurement, anticorrosive protection etc. Our company has extensive experience in cleaning the storage tanks for crude oil, oil derivatives, technological waters and so on, up to 80,000 cubic meters, dehydrators, horizontal and vertical separators, decanter, neutralization basins, sewage separators, sewage tanks, cleaning of containers from hazardous chemicals (acids, alkalis ...) We also perform chemical cleaning of steam and boiling water boilers with power from 0 to 400 MW (flue and water), passivation of pipelines equipment od neh stainless steel (AISI 316, 304, DUPLEX etc.) in shipbuilding, food industry and others.
 
Chemical cleaning
PASSIVATION
All the oxides or deposits present on the inner parts of the pipeline are completely removed by the acidic treatment described above, leaving clean internal pipes. Leaving the pipeline in such a state would mean exposing the inner parts of the pipeline to oxidation, hence corrosion. The goal of the passive phase is to form a protective layer of magnetite on the inner walls of the tubes that protect them from oxidation. For passivation, the chemical agent AC-04 is used, to increase the pH of the solution, the NE-01 agent is used, to apply the magnetite agent OK-01 and to wash the passivation solution, NE-01 is added.
 
During the circulation of the solution by laboratory measurement is checked:
concentration of chemical resources
determining the content of fero and ferrous iron
pH value check
redox potential

After the system is washed, all the solutions are stored in the storage tank and treated with waste in accordance with the legal regulations.
When working on cleaning the tank, special attention is paid to work safety and fire protection. They are used to disable the tools and equipment in the Ex version and the modern meters of the concentration of flammable gases in the atmosphere. Chemical cleaning is carried out using self-degradable biodegradable degreasing agents that have water permitting permits and are environmentally friendly and high pressure steam cleaners. Waste fluids are sucked with the use of special vacuum tank pumps and are transported to storage, processing and permanent disposal sites. We also carry out chemical cleaning of steam and boiling water boilers from 0 to 400 MW (flue gas and water side), passivation of piping and stainless steel equipment (AISI 316, 304, DUPLEX etc.) in shipbuilding, food industry and others.
 
 
CHEMICAL CLEANING AND PASSIVATION OF WATER TREATMENT OF BOILERS AND HEAT EXCHANGERS
 
INTRODUCTION
When working on a water-to-air plant, carbonate, silicate, corrosion, excessive magnetite and other joints can result in overheating of the tube and their crackage, less heat change, causing lower degree of utilization of the boiler itself or heat exchanger . Also due to the separation of slats from the wall can cause undesirable consequences of damage to equipment and devices in the system in which it is located. In order to avoid any undesirable consequences, it is necessary to perform chemical cleaning.
According to the request of the customer or the requirements of the technological process after chemical cleaning, the passivization of the purified iron surfaces by magnetite (Fe3O4) is carried out.

PREPARATION
Prior to chemical cleaning, a sample of removable deposits is taken and a functional dissolution test is performed and, if necessary, a physical chemical analysis to determine the cleansing technology or the cleaning chemicals.

CHEMICAL CLEANING AND PASSIVATION
Chemical cleaning-irrigation is performed in forcible circulation by means of mobile equipment: chemical pumps, dosing pumps, reinforcement, flexible hose for joining and bridging and other equipment.
 
Approximate technological process:
Bridging, temporary equipment and connection to clean equipment.
Demineralised water supply system and pressure test on the leakage of installed temporary equipment.
Circulation and quality control of circulation.
Degreasing
Rinse with water
Chemical cleaning in the circulation to the complete purity of the system
Watering by extrusion method to satisfactory water output quality
Passivation in circulation to a satisfactory quality of the magnetite layer
Rinsing of passivation means
System drainage and quality review of the chemical treatment performed.

During chemical treatment, chemical analyzes are carried out to monitor the course and the quality of cleansing and passivation.

QUALITY CONTROL
The quality of the chemical purification performed is visual and control with appropriate laboratory tests.
 
CHEMICAL CLEANING AND PASSIVATION OF STAINLESS STEEL
 
INTRODUCTION
During the production and exploitation of stainless steel equipment damage to the passive layer (Cr2O3) or corrosive damage occurs.
Causes of corrosion damage are:


Welding points - coloring around the weld due to high temperature during welding. Changing the material structure reduces the chromium content and thus reduces the corrosion resistance of the material.
Chemical damage to the passive layer due to the action of media that is in contact with equipment and external influences (contaminated atmosphere).
Mechanical damage - scratches, sanding, brushing etc.
Due to iron contamination and rust from sanding and cutting.
 
PREPARATION
Prior to chemical purification and passivation, the technology and the type of chemicals are subjected to chemical treatment according to the process requirements in which the equipment is used and the requirements of the customer.

CHEMICAL CLEANING AND PASSIVATION
Chemical cleaning-irrigation is performed in forcible circulation by means of mobile equipment: chemical pumps, dosing pumps, reinforcement, flexible hose for joining and bridging and other equipment.

APPROXIMATE TECHNOLOGICAL PROCEDURE:
Bridging, temporary equipment and connection to equipment that will be cleaned.
Filling system with demineralized water and pressure test for leaks of installed temporary equipment.
Circulation and quality control of circulation.
Degreasing
• Rinse with water
Dry cleaning in the circulation in the prescribed time according to the appropriate standards
Watering by extrusion method to satisfactory water output quality.
Passivation in circulation in the prescribed time according to the appropriate standards
Rinsing of passivation means
System drainage and quality review of the chemical treatment performed.

Chemical cleansing and passivation by sinking method into bathtubs
Degreasing with hot water under high pressure and detergents
Soak in a bath with chemicals to clean
High pressure water washes
Immersion in a bathtub with a passivation medium
High pressure water washes
Verification of the quality of passivation carried out

Chemical cleaning and passivation by manual passivation method
Degreasing with hot water under high pressure and detergents
Surface coating of pastes for cleaning and passivation
High pressure water washes
Verification of the quality of passivation carried out

QUALITY CONTROL
The quality of the chemical purification carried out is visual and is controlled by appropriate laboratory tests or passive layer control with a passive layer control device for 200,300 and 400 ASTM stainless steels.

 
Cleaning of sewage systems
By applying new technologies and equipment, the process of mechanical and chemical cleaning of the technology for the sewage sys- tems was adopted. The final result of such cleansing is the multiple reduction of soil and groundwater contamination by oils and fats. This technology has been developed using its own specially combined auto tank systems equipped with vacuum and high pressure pumps, using environmentally-friendly degreasing agents from its own production program, using sealing pipes hydrocarbon-resistant pneumatic seals, special high pressure water driven nozzles and mobile oil separator /water. Currently AEKS d.o.o. has 7 combined special tank cars equipped with high pressure and vacuum pumps which can store up to 13 m3 of fluid depending on the model in the tanks.
 
 
 
 
Angažiraj nas | AEKS d.o.o.