Cleaning IBC containers: Here's how to do it properly!
IBC containers are indispensable in industry for the transport and storage of liquids and free-flowing substances, especially hazardous materials. However, without regular cleaning, contamination can compromise the safety and quality of the stored materials and shorten the service life of the container. In addition to step-by-step instructions for cleaning IBC tanks, this guide provides you with all the information you need to keep your IBC containers safe, clean and functional.
- Cleaning IBC containers – the most important facts in brief
- Why is cleaning IBC containers important?
- What types of contamination are there in IBC containers?
- Cleaning IBC tanks: agents and methods
- Step-by-step instructions for cleaning an IBC container
- FAQ: The most frequently asked questions about cleaning IBC containers
- Store liquids safely and sustainably with Recobulk IBC containers
Cleaning IBC containers – the most important facts in brief
Cleaning IBC containers prevents dangerous chemical reactions and ensures hygiene and quality of the stored liquids and substances.
In the food and chemical industries, IBC containers must meet strict hygiene standards and regulations.
A clean interior and exterior surface extends the service life of IBC containers and saves your company maintenance costs.
Thoroughly cleaned IBC containers can be reused, which contributes to resource conservation and sustainability.
IBC containers are generally suitable for multiple use and can be cleaned, inspected and reconditioned accordingly. However, professional reconditioning is essential for safe reuse, especially in the case of hazardous materials. This includes thorough cleaning, checking for corrosion, damage and residues, and replacing safety-relevant components such as inner containers, seals and screw caps. Only technically flawless containers can guarantee the necessary safety for further use. For sensitive applications, only IBCs with new components that come into contact with the product should be used – they combine maximum product safety with resource-saving reuse.
Why is cleaning IBC containers important?
IBC containers are generally considered to be very robust – they are suitable for storing various liquids and hazardous materials, can withstand temperature fluctuations and are frost-resistant. Why should you still empty IBC containers and IBC tanks (e.g. large 1000-litre containers) regularly and clean them thoroughly inside and out – even if you only use them privately as water tanks?
Prevention of contamination with hazardous materials: When storing hazardous materials, it is very important to completely remove residues from the containers to prevent contamination of the next load. Contaminated containers can trigger dangerous chemical reactions or impair the effectiveness of the new filling.
Ensuring hygiene and quality: In industry, agriculture and the private sector, IBC containers must be cleaned regularly and thoroughly to ensure the hygiene and quality of the stored goods. Contamination allows bacteria and microorganisms to grow, rendering the stored liquids unusable.
Extending the service life of the containers: Regular cleaning helps to remove deposits and dirt that could damage the inner container and other parts of the container. This contributes to a longer service life for the containers and saves costs for maintenance or replacement.
Compliance with regulations: Particularly in the food and chemical industries, IBC containers must comply with strict hygiene standards and industry regulations. Thorough cleaning is necessary to meet these requirements and ensure the quality of the stored products.
Please note that the frequency of cleaning depends on usage. Private IBC tanks should be cleaned at least twice a year, while industrial tanks need to be cleaned more frequently.
If you want to buy a used IBC container, make sure that it has been professionally reconditioned. This ensures that the container is leak-proof and functional. For hazardous materials, only new IBC containers or those that have been specially reconditioned for this purpose should be used, such as the reconditioned IBC containers from DENIOS, as all parts that come into contact with the product are new. For less critical applications, such as service water, cleaned and reused inner containers may be sufficient.
What types of contamination are there in IBC containers?
IBC containers can be contaminated in various ways, depending on their use and the environmental conditions.
Chemical residues
Industrial IBC containers often contain residues from previously stored chemicals, oils or other substances. These residues are particularly critical as they not only impair the quality of the newly filled substances, but also pose serious health and environmental hazards.
Below are some examples of chemical residues and their potential effects:
Heavy oil residues: These cover the inner walls of the container and are difficult to remove. They can contaminate new loads and are often toxic to the environment and living organisms.
Solvent residues: Solvent residues release hazardous vapours and react chemically with newly stored substances, meaning that explosion protection is no longer guaranteed.
Acids and alkalis: These highly corrosive substances attack the inner tank and cause severe chemical burns on contact with the skin. They require special neutralisation procedures during cleaning.
Pesticides and herbicides: Residues of these chemicals are particularly dangerous if the container is to be reused for storing food or drinking water. They can have toxic effects on humans and animals.
Natural impurities
When IBC containers are stored outdoors on company premises, it is not uncommon for leaves, twigs and insects to get inside. These organic materials promote the growth of bacteria and microorganisms, which contaminate the water or other stored liquids.
Bacterial contamination
Standing water in IBC containers promotes the growth of bacteria. This microbial contamination renders the water unsuitable for certain uses, such as watering plants, and poses a potential risk to human health.
Algae formation
Cleaning water tanks that are exposed to sunlight is particularly important, as this promotes algae growth. Algae impair water quality, cause discolouration and damage the tank material.
External contamination
The outside of the containers can become contaminated by dust, dirt and other environmental influences. This external contamination attacks the material of the IBC container and negatively affects its appearance.
Cleaning IBC tanks: agents and methods
Many substances stored in IBC containers contain high concentrations of aromatic hydrocarbons, often in combination with solvents such as acetone or butanone. This causes product residues to adhere to the inner walls of the IBC containers, harden and settle in several layers on top of each other.
To clean containers with chemical residues, you need special cleaning agents and techniques that completely remove all traces of these substances.
Cleaning agent
Depending on the area of application and type of contamination, different cleaning agents can be used for IBC containers.
Water-based cleaning agents include citric acid and vinegar, which are particularly effective against limescale deposits and light soiling. These agents are environmentally friendly and safe to use. Baking soda can be mixed with water to form a paste that can be used to clean stubborn stains and deposits.
Special cleaning agents include silver-based tank cleaners or those containing active oxygen, which are particularly effective against algae and bacterial deposits and are often used to clean water tanks.
Solvents such as butyl acetate, methyl ethyl ketone, toluene and xylene are often used to remove stubborn dirt such as paint, glue and resin. However, the use of these agents is subject to strict environmental and occupational safety requirements.
Disinfectants such as hydrogen peroxide and peracetic acid are approved for cleaning and disinfecting drinking water systems and can effectively remove algae and biofilms.
Chlorine cleaner is also used for disinfection and cleaning, but should be rinsed thoroughly to avoid residues.
Cleaning methods
The choice of the appropriate cleaning method depends on various factors, such as the previous contents of the container, applicable industry regulations and the future intended use. A combination of different methods is often the most effective solution.
| Type | Description | Benefits |
|---|---|---|
| High pressure cleaning | Use of high-pressure cleaners, often in combination with cleaning agents | Effective and fast, reaches hard-to-reach places in the container |
| Mechanical cleaning | Use of rotating spray heads or brushes for stubborn dirt | Thorough cleaning, particularly effective on paint residues |
| Chemical cleaning | Use of special cleaning agents tailored to the type of soiling | Removes stubborn residues, adaptable to different materials |
| Hot water or steam cleaning | Use of hot water or steam for cleaning | Effective against grease and oil, environmentally friendly |
| Cyclic process | Circulation of cleaning agent in a closed system | Thorough cleaning, efficient use of cleaning agents |
| Professional cleaning equipment | Industrial plants with special equipment for different types of contamination | Highly efficient, standardised processes, suitable for large quantities |
When cleaning containers that have contained chemical residues, special protective equipment is usually required to protect the cleaning staff and ensure safe disposal of the cleaning residues, e.g. protective clothing, protective gloves, safety goggles, respiratory protection and safety shoes. In addition, good ventilation should be provided near the cleaning area and an eye wash station should be available in case of emergency. Also, remember to hire a professional cleaning service if necessary.
Differences between industrial and private cleaning
The cleaning of IBC containers differs in several respects between industrial and private use.
| Aspect | Industrial | Private |
|---|---|---|
| Purpose of cleaning | Removal of residues of various liquids or substances | Removal of algae, germs and bacteria, especially when used as a rainwater tank |
| Cleaning methods | Use of high-pressure cleaners and special cleaning agents, often carried out by professional service providers | Use of high-pressure cleaners and standard household cleaning agents or special tank cleaning agents based on silver or active oxygen |
| Frequency | Depending on usage and regulations, possibly more frequently | At least once a year for rainwater tanks |
| Requirements | Often has to comply with strict industry regulations and hygiene standards | Less stringent regulations, focus on general hygiene and functionality |
| Scope | Thorough cleaning of the interior and exterior, including outlet fittings and seals | Often less comprehensive, focusing mainly on interior surfaces and rough exterior cleaning. |
| Expertise | Often requires specialised knowledge of various chemicals and their residues. | Can usually be carried out by the owner themselves, without any special expertise |
Step-by-step instructions for cleaning an IBC container
The cleaning of an IBC container or an IBC tank usually involves the following six steps.
Preparation
First, you must completely empty and dismantle the IBC container. Ensure that all liquids and residues have been removed. Dismantle all connections, especially the drain cock or ball valve connection, to facilitate access and simplify cleaning.
Outer cleaning
Start by cleaning the outside of the container. Use water and a brush or sponge to remove dirt and deposits. For heavier soiling, you can use a high-pressure cleaner.
Inner cleaning
Prepare a suitable cleaning solution. For private use, a mixture of water and a silver-based or active oxygen tank cleaner is suitable. Use a high-pressure cleaner or a special cleaning device to thoroughly clean the inside of the tank. Take special care to remove algae, bacteria and other deposits from the inner walls.
Cleaning the components
Clean the drain tap and seals separately. Check these parts for wear or damage that could impair their functionality. Thorough cleaning of the parts ensures that no contaminants remain and that the seals continue to function properly.
Rinsing and drying
Rinse the container thoroughly with clean water to remove all traces of the cleaning agent. Ensure that no chemical residues remain that could contaminate the next filling. Allow the container to dry completely before reuse or before closing to prevent mould or bacteria growth.
Final inspection
Finally, ensure that all components are correctly reassembled so that the container is ready for use. A final check ensures that the container is in optimal condition without damage or leaks.
FAQ: The most frequently asked questions about cleaning IBC containers
Here you will find answers to the most frequently asked questions about cleaning IBC containers and water tanks.
You must clean and maintain IBC containers and tanks regularly to ensure hygiene and quality of the contents and to prevent deposits and contamination. This guarantees safe and efficient use of the containers.
Particularly for industrial use, cleaning at least once a year is recommended to ensure water quality. However, the frequency of cleaning depends on the substances stored. If the IBC tank is used for different media, cleaning is required after each use to prevent contamination.
Yes, you can clean an IBC container yourself if you use suitable equipment and cleaning agents. One example is a private water tank in the garden. However, if there is heavy soiling or chemical residues, you should seek professional help.
The cost of cleaning an IBC container varies depending on the type of previous filling, the degree of contamination and whether it is industrial or private cleaning. There are no fixed prices for professional cleaning services, as these depend on the factors mentioned above. For accurate price information, please contact specialised providers directly, who will provide you with a specific quote after assessing the cleaning requirements.
Reconditioning means thoroughly cleaning and inspecting used IBC containers to make them fit for reuse (named Recobulk IBC containers). This is necessary if the containers no longer meet the high hygiene standards of the food or pharmaceutical industry. Comprehensive internal and external cleaning and documentation of previous fillings ensure that the containers are hygienically flawless. They can then be reused in other industries or in the private sector, for example as water tanks. This process enables you to act in an economically and ecologically responsible manner and to conserve valuable resources.
Do you have any more questions about IBC containers? Then read on here: "IBC containers – 16 questions for IBC experts".
Store liquids safely and sustainably with Recobulk IBC containers
Cleaning IBC containers prevents dangerous chemical reactions and ensures the quality of the container contents. Regular cleaning extends the service life of the containers and saves costs. Clean containers can be used multiple times, allowing you to make an active contribution to environmental protection. In our shop, you will find a large selection of (reconditioned) IBC containers, containers for every purpose and mobile tank systems.
You can find more tips and instructions on handling hazardous materials in our online magazine.
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The specialist information on this page has been compiled carefully and to the best of our knowledge and belief. Nevertheless, DENIOS SE cannot assume any warranty or liability of any kind, whether in contract, tort or otherwise, for the topicality, completeness and correctness either towards the reader or towards third parties. The use of the information and content for your own or third party purposes is therefore at your own risk. In any case, please observe the locally and currently applicable legislation.