Dosing technology in industrial water and wastewater treatment refers to the precise addition of chemicals to achieve specific treatment objectives. The choice and fine-tuning of dosing are crucial to the efficiency and cost-effectiveness of water treatment processes, particularly in areas such as precipitation, flocculation, pH control and corrosion protection. Dosing technology includes a wide range of equipment and systems, ranging from simple hand dosing pumps to fully automated dosing stations that ensure accurate and continuous dosing in real time.
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Technical background and requirements for dosing technology
In industrial water and wastewater treatment, dosing is often very specific, depending on factors such as the quality of the water to be treated, the type and concentration of the chemicals to be dosed and the flow rate of the water. Efficient dosing technology must be both precise and flexible in order to react to fluctuations in water quality or the loads to be treated. Depending on the application and requirements, the dosing technology can include the following requirements:
- Accuracy and precision: Precise control of the dosing quantities is essential to prevent overdosing and thus unnecessary chemical consumption as well as underdosing and thus inadequate water treatment.
- Material resistance: Depending on the dosing medium, components of the dosing technology, such as seals and diaphragms, must be resistant to corrosive or abrasive chemicals. Common materials are NBR (nitrile rubber), FKM (fluororubber) and EPDM (ethylene propylene diene rubber).
- Safety systems: Automatic empty messages and overfill sensors are necessary to ensure safe and uninterrupted operation of the dosing stations and to minimize safety risks.
Types of dosing technology and specific application examples
Industrial dosing technology includes various systems that are specially designed for the type of chemicals and the specific treatment requirements:
Automatic dosing and preparation stations:
- These stations are automated systems that prepare and dose chemicals in predetermined quantities. They are particularly important in processes such as flocculation and precipitation, as constant and precise dosing of chemicals is required to promote the formation of stable flocs.
Diaphragm and piston pumps:
- Diaphragm and piston pumps are often used in dosing systems to enable uniform dosing under different pressure and flow conditions. They are capable of dosing chemicals with high precision and repeatability.
- These systems are specially designed for the use of IBCs (Intermediate Bulk Containers) and enable the simple connection of large containers to the dosing system, which ensures a flexible and large-volume chemical supply.
Load-proportional dosing control:
- These are systems that control the dosing of chemicals based on the water load and the online measured values. These systems adjust the dosing quantity in real time to maximize the efficiency of the treatment processes.
Photo: IBC dosing station for precipitant (left) and dosing and preparation station for the neutralizing agent milk of lime (right) installed in the ALMA Modul technical room container
ALMAWATECH dosing technology: Customized solutions for industrial water and wastewater treatment
ALMAWATECH offers a range of specialized dosing technology solutions that are optimally tailored to the needs of our customers and the requirements of industrial water and wastewater treatment. Our products are specially developed for precise, reliable and economical dosing:
1. ALMA FLOC AC - Automatic dosing and preparation station for flocculants:
- This station enables the precise and controlled addition of flocculants to optimize the aggregation and sedimentation of solids in wastewater. The automatic preparation process ensures that the flocculants are always available in the correct concentration, which guarantees consistent and reliable flocculation.
2. ALMA LIME - preparation and dosing station for milk of lime:
- For applications that require pH adjustment using milk of lime, the ALMA LIME offers an automated preparation and dosing solution. This station is robustly designed to prepare and dose milk of lime with high precision and is equipped with special seals that can withstand abrasive media.
3. ALMA dosing station for various delivery containers:
- Our delivery container-compatible dosing station enables easy integration and safe connection of IBC containers, 30/60 liter containers or 200 liter chemical drums to the dosing system. This is particularly advantageous in large systems with high chemical consumption, as dosing takes place directly from the large containers.
Photo: Double dosing station for 30 liter containers (foreground) and double IBC dosing station (background)
All our dosing stations are equipped with an automatic empty signal, overfill sensor and durable sealing materials (NBR, FKM, EPDM, etc.) to ensure a high level of operational safety and durability. These safety precautions ensure continuous monitoring of the operating status and enable uninterrupted operation, even with intensive use and large throughput volumes.
Control and load-proportional dosing: ALMAWATECH's advanced dosing technology
One of the key requirements in industrial dosing technology is the ability to adapt the dosing to the actual load of the water. ALMAWATECH offers a special control and online measurement system that enables load-proportional dosing. This intelligent control technology continuously monitors the water quality and adjusts the dosing quantity in real time to fluctuations in the water composition.
- Automatic adjustment of the dosing quantity: Based on the online measured values such as COD, TOC, pH, conductivity or turbidity value, the dosing is automatically regulated to ensure an optimum dosing quantity and avoid overdosing.
- Reduction of chemical consumption: The load-proportional dosing minimizes chemical consumption, which reduces operating costs and maximizes the efficiency of water treatment at the same time.
- Efficient control of dosing stations: The integrated control technology enables centralized control and monitoring of dosing stations, allowing for quick adaptation to changing water conditions.
Application areas and advantages of ALMAWATECH dosing technology
Areas of application
- Wastewater treatment: In wastewater treatment, dosing technology plays a crucial role in the addition of precipitants, flocculants and pH control chemicals to ensure treatment efficiency and compliance with legal limits.
- Cooling water treatment: Precise dosing of corrosion inhibitors and biocides is required for cooling water treatment in order to prevent deposits and fouling and to ensure the safe operation of the systems.
- Boiler water treatment: The dosing of oxygen binding agents and pH stabilizers in boiler systems is necessary to prevent corrosion and extend the service life of boiler components.
Advantages of ALMAWATECH dosing technology
- Greater efficiency and accuracy: ALMAWATECH's dosing technologies are specially designed for industrial water and wastewater treatment and ensure high dosing accuracy and flexibility.
- Cost efficiency: The automatic adjustment of dosing quantities optimizes chemical consumption, which leads to a considerable reduction in costs.
- User-friendliness: The systems are user-friendly and can be easily integrated into existing processes. Maintenance and replacement of components are straightforward, which minimizes downtime.
Conclusion
Dosing technology is an essential component of industrial water and wastewater treatment, which has a significant influence on the efficiency and cost-effectiveness of treatment processes. ALMAWATECH offers customized dosing technology solutions that are tailored to the specific requirements of our customers and the treated water quality. With products such as the ALMA FLOC AC, ALMA LIME and the delivery container-compatible dosing station as well as the intelligent control technology for load-proportional dosing, ALMAWATECH ensures precise and economical treatment and sets new standards in dosing technology for water treatment.
For further information on our products, please feel free to contact us at any time!
Photo: IBC dosing station with WHG collection tray (left) and ALMA LIME milk of lime dosing and preparation station (right)
