Welcome to
GAW water technologies
GAW water technologies – a joint business division of GAW technologies, OSMO membrane systems and AutomationX – combines their core competencies and decades of experience in pulp and paper, water treatment and process automation.Due to this unique combination of know-how and by focusing entirely on the pulp & paper industry GAW technologies creates a real added value for our customers through extensive synergy effects.
GAW water technologies provides highly efficient water treatment solutions from a single source, and tailored to the customer’s needs in almost every part of the pulp or paper mill.
Excellent water for excellent paper –
Water and wastewater treatment plants for the pulp & paper industry
Water is a key resource in the pulp & paper production. With a high-quality, efficient water and wastewater treatment system, enormous cost savings can be achieved by reducing consumption of water, energy, chemicals and raw materials. High-quality water and wastewater treatment brings enormous cost savings in the papermaking process. GAW water technologies help to ensure a reliable water supply and reduce the water footprint. Valuable raw materials such as coating pigments can be recovered and the water returned to the process. In the production process, high quality water can help to protect equipment and reduce reject rates. The use of chemicals in the paper manufacturing process can also be optimized. Last but not least, excellent water is a prerequisite for the production of excellent paper.Excellent water for excellent paper –
Water and wastewater treatment plants for
the pulp & paper industry
Water is a key resource in the pulp & paper production. With a high-quality, efficient water and wastewater treatment system, enormous cost savings can be achieved by reducing consumption of water, energy, chemicals and raw materials. High-quality water and wastewater treatment brings enormous cost savings in the papermaking process. GAW water technologies help to ensure a reliable water supply and reduce the water footprint. Valuable raw materials such as coating pigments can be recovered and the water returned to the process. In the production process, high quality water can help to protect equipment and reduce reject rates. The use of chemicals in the paper manufacturing process can also be optimized. Last but not least, excellent water is a prerequisite for the production of excellent paper.Excellent water for excellent paper –
Water and wastewater treatment
plants for the
pulp & paper industry
Water is a key resource in the pulp & paper production. With a high-quality, efficient water and wastewater treatment system, enormous cost savings can be achieved by reducing consumption of water, energy, chemicals and raw materials.
High-quality water and wastewater treatment brings enormous cost savings in the papermaking process.
GAW water technologies help to ensure a reliable water supply and reduce the water footprint.
Valuable raw materials such as coating pigments can be recovered and the water returned to the process.
In the production process, high quality water can help to protect equipment and reduce reject rates. The use of chemicals in the paper manufacturing process can also be optimized.
Last but not least, excellent water is a prerequisite for the production of excellent paper.
4 steps 2 success
Water is a key resource in the pulp & paper production. With a high-quality, efficient water and wastewater treatment system, enormous cost savings can be achieved by reducing consumption of water, energy, chemicals and raw materials.
High-quality water and wastewater treatment brings enormous cost savings in the papermaking process.
GAW water technologies help to ensure a reliable water supply and reduce the water footprint.
Valuable raw materials such as coating pigments can be recovered and the water returned to the process.
In the production process, high quality water can help to protect equipment and reduce reject rates. The use of chemicals in the paper manufacturing process can also be optimized.
Last but not least, excellent water is a prerequisite for the production of excellent paper.
Innovative and efficient treatment technologies for your needs
Innovative and efficient treatment technologies
for your needs
Innovative and efficient
treatment technologies
for your needs
Ultrafiltration
Rejection of suspended solids, turbidity, organic and colloidal matter, microbiological organisms
Reverse osmosis
Rejection of salts and organics
Water demineralisation
Membrane degassing
Removal of CO2 and O2
Ion exchange, EDI
Rejection of salts and residual dyes
Specific salts removal
Ultrapure water generation
Accessories
Chemicals: storage systems, dosing systems, regeneration stations, conditioning stations
Subsystems: Pre-filters, activated carbon filters, heat exchangers, CIP stations
Focus on exellence
Engineering Excellence
Developing the optimal solution for customer-specific requirements is our daily drive.
We use state-of-the-art technology, but also conventional processes, just as the project requires.
Our engineering aims at a holistic cost optimization, maximum plant availability and longevity as well as minimum environmental impact.
Processes developed in-house help us achieve this.
Seamless integration into the existing infrastructure and thorough, efficient and punctual project completion are a matter of course for us.
Operational Excellence
It is of great importance to us that the plants are not only well engineered, but also run without problems for a long time and are continuously optimized.
Even after the handover of the plant, we will be happy to continue to support you with our experience. Through continuous support of the operators by us, an optimization of the process efficiency can be achieved.This can, for example, minimize energy and chemical consumption and increase the service life of the equipment.
More than 40 years of experience in operating water treatment plants ensure competent support.
Customer excellence
The customer is the focus of all our activities. GAW water technologies does not only engineer and build plants according to the customer’s needs, but also sees itself as a partner who consults and coordinates with the customer before, during and after the project. The optimisation of existing plants is becoming more and more important.In all our activities, cost optimization and efficiency increase are in the foreground, using a sustainable approach that is committed to environmental protection.
Consequent customer support – worldwide
Excellent references
speak for themselves
Project Background
Chloride load in process water exceeded limits specified for paper machine. Customer feared Chloride load in process water exceeded limits specified for paper machine. Customer feared corrosion of equipment.
Objective & ChallengeDesalination of process water @ optimized OPEX. Challenges: fluctuating salinity – high algae and humidic acids. | Plant start up 2012 |
SolutionLow fouling RO with specific OSMO pre-treatmentLow fouling RO with specific OSMO pre-treatmentand cleaning process features. | Treated water River water |
Customer benefits
| Capacity 450 m³/h |
Core competences in the project
Project Background
The quality of the river water as feed to the existing process water treatment plant had deteriorated sharply since its installation. As a consequence the chemical consumption for equipment cleaning had risen dramatically.
Objective & ChallengeOperating cost optimization by reducing the chemical consumption as the main cost factor. | Plant start up 2017 Treated water River water |
SolutionAn ultrafiltration (UF) plant as pre-treatment to the existing desalination plant was installed. The UF features a special process to cope with the difficult conditions. Another highlight is the absence of coagulation chemicals in the UF process which further reduces costs and environmental impact. | Capacity 900 m³/h |
Customer benefits
|
|
Core competences in the project
Project Background
The customer, a paper mill producing photo and decor paper, suffered from very high consumption of retention agents in the production process. The process water was sand filtered surface water used for cooling before being used as process water.
Due to very good experiences with GAW processing equipment the customer asked GAW also for a water treatment solution.
Objective & ChallengeCustomer studies suggested to demineralize the water to a certain extent. The very high hardness posed an additional challenge. | Plant start up 2007/2009/2012 |
SolutionThe water demineralisation was achieved by installing high recovery reverse osmosis systems. Due to the extreme water hardness the plants were equipped with automatic cleaning in place systems. After the first plant operated successfully 4 more RO plants followed. | Treated water River water Capacity 125 m³/h |
Customer benefits
|
|
Core competences in the project
Project Background
The cooling tower honeycombs of a paper mill producing newspaper from 100% waste paper experienced heavy clogging caused by excessive hardness and silicic acid in the cooling water which was treated water from the waste paper recycling process. The existing treatment was ineffective and caused high costs for maintenance and conditioning agents.
Objective & ChallengeReduce operational costs by minimizing hardness and silicic acid from the cooling water. | Plant start up 2012 |
SolutionThe cooling water make-up water is now mainly coming from a well which is treated by a RO plant with an iron and manganese removal unit upstream. The much better water quality allows to run the cooling water cycle at a concentration factor of almost 10. | Treated water Well water Capacity 50 m³/h |
Customer benefits
|
|
Core competences in the project
Project Background
The customer, a cardboard manufacturer, used to discharge his waste water into the municipal sewage treatment plant for purification. After a sharp increase in fees, the company decided to build its own sewage treatment plant.
Objective & ChallengeThe complete waste water treatment plant comprising a MBR plant and a RO plant was awarded to an EPC company also operating the plant. GAW Water built the RO plant. Challenge: achieve a consistent conductivity of less than 50 mS/cm with a heavily fluctuating feed quality. |
Plant start up 2008 Treated water Secondary effluent Capacity 24 m³/h |
SolutionIn order to meet the very ambitious limits under all conditions GAW Water decided to install a reverse osmosis plant with a two pass design and low fouling technology. GAW was selected based on the design as well as on existing good references. |
|
Customer benefits
|
Core competences in the project
Project Background
A new, state-of-the-art paper mill producing containerboard required ultrapure water for steam generation for its RDF power plant.
Objective & ChallengePlant reliability along with a proven track record of the plant supplier was a main concern. Minmized waste water was another important point to fit in the overall green concept of the whole paper mill. | Plant start up 2020 Treated water Condensate and city water |
SolutionThe RO process includes proprietary Faktor X technology to optimize recovery. The plant reliability was further enhanced by a selecting a specific ion exchange process design. | Capacity 200+30 m³/h |
Customer benefits
|
|
Core competences in the project
Project Background
The existing plant of a third party company was built to remove iron and desalinate the water by means of membranes. It suffered from design flaws that reduced availibility due to repeated break-downs in various parts of the plant. Frequent membrane replacements had to be carried out due to hydrauliic overload.
Objective & ChallengeReview of the complete plant. Develop a concept to retrofit the plant in close co-operation with the customer. Implement the solution in the plant. | Plant start up 2010 Treated water Brackish water |
SolutionThe plant was re-engineered with a focus on reducing hydraulic loads and operation automation for automatic adaption to varying water demands. The control cabinet including other hardware and programming were part of the scope. Equipment was added or replaced only where absolutely necessary to keep the costs low. | Capacity 23 m³/h |
Customer benefits
|
|
Core competences in the project
Project Background
With the construction of a modern combined cycle power plant in the paper mill of a large international group, the boiler feed water treatment was also put out to tender. The feed water was to be changed from well water to river water in order to ensure security of supply.
Objective & ChallengeComplete new construction of the make-up water treatment and condensate recycling with sustainable, state-of-the-art technology. Challenge: the river water shows extreme, seasonal fluctuations in quality with high colloidal silica content at times. | Plant start up 2012 Treated water River water and condensate |
SolutionAs the first of its kind in a German paper mill, the river water is pre-cleaned with innovative ultrafiltration technology, which is operated in an environmentally friendly manner without flocculants. | Capacity 120 +220 m³/h |
Customer benefits
|
|
Core competences in the project
Project Background
The customer, a paper mill producing WFC, WFU and specialty papers intended to further reduce production costs and environmental impact by optimizing its fresh water consumption.
Objective & ChallengeRecycle a part of the secondary effluent of the existing activated sludge plant to be used as process water. Challenge: quality targets included a nearly complete removal of all impurities and color along with desalinating the waste water. | Plant start up 2018 Treated water Secondary effluent |
SolutionA multi-barrier filtration process including an innovative two-stage membrane plant featuring ultrafiltration and reverse osmosis has been implemented. It is particularly remarkable that the UF plant runs environmentaly friendly without any flocculation. The heat of the waste water can be re-used in the process. | Capacity 100 m³/h |
Customer benefits
|
|
Core competences in the project
Contact
Ralf Krueger
Sales Director Global
GAW water technologies
M. +49 151 1119 3937
E. ralf.krueger@gaw.at