References

References2019-12-28T20:15:50+00:00

Reference projects in water treatment

Find below a selection of our recently installed Atec systems in the field of water treatment in different countries and industries.

Surface technology – Austria  – 2019

Task:

The customer has 2 large, strongly alcaline immersion cleaning baths, each one with approx. 140 m³ volume, which form part of his hot-dip galvanization process. These baths are polluted with grease, oil and metal particles.

Solution:

An Atec Miditube filtration unit with a very compact footprint of < 1 m² and a membrane surface area of approx. 3 m² cleans automatically and alternatingly both baths. Through the continuous removal of dirt the pollution of the immersion cleaning baths could be decreased significantly. This eliminates the need for complete drainings and remplacement of the baths, which generates huge savings in the fields of manpower, water / wastewater and chemical consumption – and in addition to that protects the environment.

Food industry – Deutschland – 2019

Task:

High organic content and bacteria growth lead to odor problems in a rinsing bath. This makes frequent changes of the bath and cleaning of the equipment necessary.

Solution:

A very compact Atec Minitube filtration in the “Dead-End” filtration version cleans the bath and removes continuously (organic) turbidity as well as bacteria. This limits bacterial growth and odor generation. The filtration unit is equipped with a large membrane surface area of approx. 11 m².

Water treatment – Austria – 2018/19

Task:

Test / pilot unit for filtration application in the field of sea water desalination.

Solution:

Atec Cartridge Filter with ceramic flat sheet membranes.

Atec Cartridge Filter

Water treatment system manufacturerGermany – 2018

Complete automation of a pilot unit / prototype for the treatment of industrial wastewater polluted with oil and grease.

Scope of services:

Design and assembly of control panel, S7 program, visualization of HMI, wiring, commissioning, factory acceptance test

Wood processing industry – Germany – 2018

Task:

Depending on the season, the customer 3-9 m³/h of wastewater from the dewatering of wood chips. This wastewater has a high content of suspended solids / turbidity as well as wood fibre and small wood chippings. This leads to a low efficiency of the evaporator that receives the wastewater and thus high operating and maintenance costs. Also, a large amount of liquid concentrate from the evaporator has to be incinerated in the wood biomass power plant, wasting a lot of energy.

Solution:

The wastewater passes through a chemical pretreatment in 3 steps, consisting of precipitation/flocculation, neutralization and coagulation. By that the fine suspended solids / particles are agglomerated to filterable flocs. A screw press with a 0,25 mm screen filters the pretreated wastewater and dewaters the removed sludge at the same time.

By that the customer achieves two benefits with one single machine: the high solids load is taken off the evaporator and the customer gets a dry sludge cake, which can be incinerated efficiently in th wood biomass power plant.

Screw press for wastewater treatment in the wood processing industry

Manufacturer of household appliances – Case no. 2 – Germany – 2017

Task: Accumulation of oil and dirt in the cleaning bath in parts cleaning. This decreases the lifetime of the cleaning bath and leads to alterations of the process quality and stability.

Solution: Atec Miditube ultrafiltration system with ceramic membranes with 6 m² membrane surface area for the removal of oil and dirt from the cleaning bath.

Manufacturer of household appliances – Case no. 1 – Germany – 2017

Task: Accumulation of oil and dirt in the cleaning bath in parts cleaning. This decreases the lifetime of the cleaning bath and leads to alterations of the process quality and stability.

Solution: Atec Miditube ultrafiltration system with ceramic membranes with 3 m² membrane surface area for the removal of oil and dirt from the cleaning bath.

Ultrafiltration systems for laboratory applications – Norway – 2017

Design and manufacturing of two ultrafiltration systems for laboratory trials for the university. One system works with ceramic tubular membranes and applies the cross flow filtration principle. The second plant works with ceramic flat sheet membranes made from silicon carbide (SiC).

Poultry slaughterhouse – Costa Rica – 2017

Task: Wastewater with very high contents of fat and suspended solids.

Solution: Physical chemical pretreatment with a dissolved air flotation (HUBER dissolved air flotation HDF) unit with a capacity of aprox. 25 m³/h. Nearly complete removal of FOG (fat, oil & grease) and TSS, as well as significant reduction of organic load (COD/BOD).

Project realized in cooperation with GTWE Costa Rica and HUBER SE.

Municipal wastewater treatment plant – Costa Rica – 2017

Task: Mechanical pretreatment of the wastewater and dewatering of the biological sludge

Solution: HUBER Rotamat Ro5 Complete Plant with an automated rotary drum fine screen, automated longitudinal grit trap and automated grease removal for the mechanical pretreatment of the incoming wastewater. The plant can process up to 100 l/s. An automated screw press (HUBER S-Press) dewaters the raw biological sludge (aprox. 1% dry matter) in order to reach aprox. 20% dry matter content.

Project realized in cooperation with GTWE Costa Rica and HUBER SE.

Drinking water treatment – Iran – 2016

Task: Ground water containing particles / suspended solids and bacteria.

Solution: Containerized compact plant with submerged ultrafiltration membranes. Application of very robust and durable ceramic flat sheet membranes.  20ft container treats 20 l/s (= 72 m³/h).

“Plug-and-play” solution: The filtration container is delivered completely ready for installation. All that has to be done by the customer is connecting raw water, treated water and wastewater piping and electricity with the container.

Installation and transport inside a 20ft standard box container

Very compact “plug-and-play” system for easy installation

Pilot plant for a customer – Germany – 2016

Our customer developed an innovative way to treat process and wastewater. This technology combines different processes of physical and physical-chemical water treatment.

Atec builds a pilot plant in close cooperation with the customer, in order to get the technology ready for applications in real industrial cases.

Remineralization of demineralized sea water – Austria – 2016

Demineralized sea water is not suitable for direct use as drinking water. It lacks the minerals which should be in the drinking water.

Our customer developed a process for remineralizing such water. Atec designed and built a small-scale test unit for the customer.

IMG_3408_205x154

Test unit for remineralization of demin water

Parts cleaning – Turkey – 2016

Task: High content of oil and dirt in the degreasing bath which is aumenting constantly. This reduces the useful life of the degreasing bath and leads to alterations in the quality of the degreasing and parts cleaning process.

Solution: Atec Minitube ultrafiltration system cleans approx. 300 l/h. By that the quality of the degreasing bath is maintained constanly on a high level and the useful life increases significantly. In addition to that, costs for chemicals and disposal of wastewater are reduced.

IMG_3379

Atec Minitube ultrafiltration for treatment of a degreasing bath

Manufacturer of ceramics for sanitary applications – Germany – 2015

Problem: Waste water from grinding of ceramics. Water is not suitable for reuse and therefore has to be disposed as waste water.

Solution: Atec Miditube ultrafiltration cleans aprox. 1 m³ waste water per hour and allows the waste water to be reused in the grinding process. Therefore the customer saves operating and waste water disposal costs.

Atec-Ultrafiltration-Miditube

Atec Miditube ultrafiltration unit

Manufacturer of carbide tools – Austria – 2015

Problem: Parts washing bath for cleaning of  molybdenum and tungsten alloy. The washing bath contains a cleaning agent and removes cooling lubricant and metal particles from the parts to be cleaned. Impurities and dirt particles accumulate in the wash water and lead to a short lifetime of the cleaning bath.

Solution: Atec Minitube filtration unit cleans constantly about 250 l/h of the wash water and removes cooling lubricant and metal particles. The cleaning agent passes through the membrane of the Minitube filtration unit and thereby remains in the washing bath. The lifetime of the bath increases and its quality remains contantly high. The Atec filtration unit saves the customer operating and waste water disposal costs.

Atec Miditube filtration plant installed in metalworking industry
Atec Miditube filtration plant installed in metalworking industry

Farm tractor manufacturer – Germany – 2015

Problem: Wash water from the cleaning and degreasing of tractor chassis before varnishing. Grease, oil and suspended solids accumulate in the wash water.

Solution: Atec Miditube ultrafiltration cleans aprox. 1,000 l/h of degreasing and wash water and improves the lifetime of these baths. This saves operating and disposal costs and provides for a high and constant cleaning bath quality.

Atec Miditube filtration plant
Atec Miditube filtration plant with operator

Automotive supplier – Germany – 2015

Problem: Waste water from parts cleaning with high content of grease and oil, particles and suspended solids. Direct discharge into the sewer is not permitted. The waste water has to be eliminated separately in an expensive way.

Solution: Atec Miditube ultrafiltation cleans up to 4 m³ of waste water per day and allows the customer to discharge the filtered waste water into the sewer. This saves disposal costs.

Metalworking industry – Germany – 2015

Atec Minitube ultra filtration equipped with 1 m² of membrane area.

Membrane manufacturer – Germany – 2015

Atec Minitube test unit. The customer will be able to test its micro, ultra and nanofiltration membranes in different possible applications. The filtration unit can be operated at up to 25 bar in order to achieve good results in nanofiltration applications.

Sugar cane mill and refinery – El Salvador – 2014/2015

Problem: High content of total solids in the waste water (fibre, suspended solids,…)

Solids in the channel for cooling water

Solution: Complete physical chemical waste water treatment solution, consisting of 4 screw screens, automated multi rake bar screen and a dissolved air flotation (DAF) unit. Treatment for 150 m³ waste water per hour and 2,5 m³ cooling water per second. The project was executed by GTWE German Technology in cooperation with HUBER SE.

Food industry – Germany – 2014

Problem: High content of oil and fat in the waste water

Solution: Atec Miditube ultrafiltration plant for filtration of 40 m³ / day for compliance with regulatory requirements.

Switchboard production – Germany – 2014

Problem: High content of oil and fine particles in wash water for metal parts

Solution: Atec Cartridge Filter for the removal of oil and particles. Increases lifetime of wash water, saves water, chemicals and reduces waste water disposal costs.

Office building – Costa Rica – 2014

Problem: Arsenic contamination in drinking water

Solution: Filter system for arsenic removal for 2.000 liter / hour water flow

Watchmaking industry – Switzerland – 2013

Problem: Oil and heavy metals in waste water

Solution: Atec Minitube Filter with preliminary heavy metal removal. Compliance with discharge requirements and high savings in disposal costs.

Chemical industry – Costa Rica – 2013

Problem: Bacteria in raw water

Solution: Atec ultrafiltration system for the removal of bacteria, virus and fungus.

Photovoltaic industry / Wafer fabrication – Germany – 2013

Problem: Fine silicon particles and dust in process water / coolant

Solution: Atec Tubefilter with preliminar centrifuge removes all solids.

Upon request we may send you information about older reference projects as well.