Plant Construction

For us, plant construction is the precise intermeshing of process engineering know-how, sound planning and structured project management. Tried and tested installation teams, our own commissioning engineers with expert knowledge, who train your employees and familiarise them with the plant, are elementary components of our philosophy. We will not leave you alone even after the project has been completed. We stay in touch via service and maintenance and help you quickly and unbureaucratically in your day-to-day operations.

Whether in modular design, as a container plant or as an individually designed complete plant, we will meet your requirements and combine the most diverse technologies to create a functioning treatment plant. We regard necessary certifications such as the German WHG as a matter of course.

Water Treatment

Sedimentation and (sand) filtration, de-ironing, demanganisation, desulphurisation
Activated carbon filter for dechlorination or removal of trace substances
Softening, deacidification, full desalination
Ultrafiltration, Nanofiltration and Reverse Osmosis
Ion exchange process and EDI

Some case studies of realized plants in the field of water treatment:

Ultrafiltration UltrafiltrationDeironingBrew WaterReverse OsmosisWater DegassingUltra Pure Water

Drinking water – ultrafiltration – turnkey plant

Turnkey installation of a waterworks with ultrafiltration membranes

Technology & plant characteristics:

ultrafiltration, membrane surface 4.000 m²

operating pressure 0.3 – 0.6 bar

2 treatment lines

backwashing and chemically assisted CIP cleaning

volume flow: 250 m³/h

Drinking water – ultrafiltration – container plant

Turnkey construction of a waterworks in the factory on the basis of ultrafiltration membranes

Technology & plant characteristics:

ultrafiltration, membrane area 200 m²

operation pressure 0.2- 0.5 bar

1 treatment line

backwashing and chemically enhanced CIP-cleaning

pressure boosting station 55 m w.c.

volume flow: 15 m³/h

Drinking water – filtration – deironing / manganese removal

Planning, delivery, commissioning of a complete waterworks

Technology & plant characteristics:

plant capacity: approx. 800 m³/h

treatment by oxidation and filtration to remove iron and manganese

pipeline construction in plastics and stainless steel in nominal diameters up to DN 600

disinfection of the system in accordance with the drinking water directive (TVO)

Beverage industry – reverse osmosis – brew water – water recycling

Wasserreinigungssystem für die Aufbereitung von Konzentrat aus existierenden Umkehr-Osmoseanlagen

Technology & plant characteristics:

two reverse osmosis units with flushing / CIP cleaning system

recovery 75 %

process requirement: reduction of nitrate content to < 10 ppm

total permeate flow rate: 22.5 m³/h

Beverage industry – reverse osmosis – brew water – boiler feed water

Reverse osmosis plant for brewing water production with variable adjustment of the brewing water quality via blending

Technology & plant characteristics:

reverse osmosis for removing hardness constituents and other salts from ground water

antiscalant dosage with TVO (drinking water directive) approval

free chlorine measurement and bisulfite dosage

system recovery approx. 80%

provision of boiler feed water

stainless steel skid and piping

Beverage industry – water degassing – modular plant construction

Planning, delivery and commissioning of a frame stand system ready for connection

Technology & plant characteristics:

degassing of 25 hl/h mineral water to < 20 ppb oxygen content by membrane degassing

residual oxygen monitoring

University institute – process water – ultra pure water plant – electrodeionisation

Planning, installation and commissioning of an ultra pure water plant for a university institute

Technology & plant characteristics:

double softening plant with hardness control device

reverse osmosis with 75 & recovery

electrodeionisation

ultra pure water tank with pressure boosting station

UV system for TOC degradation

ultra pure water quantity: 120 l/h

conductivity: < 0.1 µS/cm

TOC: < 30 ppb

Process Water Treatment

Filtration and conditioning of cooling water
Disinfection via UV, peroxide or hypochlorite
Ultrafiltration, nanofiltration, reverse osmosis
Chemical – physical process water treatment
Ultrafiltration, Nanofiltration and Reverse Osmosis
Boiler feed & make-up water
Circulation systems based on the ion exchanger principle
Systems for bath care in surface technology

Some case studies of realized plants in the field of process water treatment:

Reverse OsmosisWater RecyclingWater RecyclingUltra Pure WaterDI-WaterWastewaterLeak TestingWashing and Leak TestingWashing and Leak TestingCooling WaterWater RecyclingResearch Project RIKovery

Automotive – process water – reverse osmosis

Production of 5 m³/h demineralised water (permeate) from city water or process water. Use of the permeate as make-up water for the paint shop of the automotive plant.

Technology & plant characteristics:

reverse osmosis plant according to equipment specifications of car manufacturer

Automotive – process water – water recycling

Treatment and recycling of wastewater from high-pressure skid cleaning systems at an automobile manufacturer

Technology & plant characteristics:

stepwise fitration via band filter

plant capacity up to 40 m³/h

ingredients: paint residues and waxes

cooling water circuit for the entire process

pressure boosting station for skid cleaning system

Container-plant – process water – water recycling

Complete plant in modular container design with factory test, delivery, installation and commissioning; plant installed in 2 insulated, heated/air-conditioned container modules

Technology & plant characteristics:

treatment stages: wastewater tank (10 m³), precipitation/flocculation with special, non-saline flocculation chemicals, lamella clarifier, pH-adjustment, 2-stage final filtration up to 0.2 µm, clear water tank (10 m³) with pressure boosting system to supply the production, sludge dewatering via belt filter

automatic process water circulation for 5 m³/h

removal of finely dispersed organic and inorganic particles from a process bath in DI water quality

University institute –ultra pure water plant – reverse osmosis – water degassing – mixed bed polisher

Supply, installation and commissioning of a new plant for ultrapure water production for the laboratory

Technology & plant characteristics:

plant capacity 2.6 m³/h

reverse osmosis

UV-disinfection

filtration via activated carbon filter

softening

membrane degassing

UV-disinfection

mixed bed polisher

University hospital – process water – DI-water – reverse osmosis

Dismantling of old plant, installation and commissioning of a new plant for DI-water production

Technology & plant characteristics:

duplex softening plant

two reverse osmosis units operated in parallel with upstream activated carbon filter

softened water capacity: 2 m³/h

DI-water capacity: 2 x 470 l/h with < 10 µS/cm

Automotive – waste water – chemical-physical treatment – process water

Stepwise renewal of a DI & waste water treatment plant for the paint shop with dismantling of the old plant

Technology & plant characteristics:

treatment of waste water containing oil by ultrafiltration: 3 m³/h

3 continuous treatment plants for different partial flows: 25 m³/h, 12 m³/h, 6 m³/h

phosphate-containing waste water: 12 m³/h

2 batch reactors for special waste water: 25 m³ each

sludge treatment using chamber filter presses

Ion exchanger circulation plant: 12 m³/h

DI-water production: 30 m³/h

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Automotive – process water – leak testing (DPA)

Complete delivery, assembly and commissioning of a leak test cabin with spray system and portal dryer as a stand system for final assembled vehicles incl. water treatment at the testing/finishing area for different vehicle types.

Technology & plant characteristics:

3-shift operation / max. 100 vehicles/d

testing water treatment 30 m³/h

contaminants: particles

Automotive – process water – washing and leak testing (WDPA) with conveyor technology

Delivery, assembly and commissioning of a complete washing and leak testing unit with water treatment for separated washing water and leak testing circuits and transport system at the test/finish area for the electric car production

Technology & plant characteristics:

3-shift operation / max. 360 vehicles/d on 2 lines

Automotive – process water – washing and leak testing (WDPA) with conveyor technology

Delivery, assembly and commissioning of a complete washing and leak testing unit with water treatment

Technology & plant characteristics:

belt speed of continuous washing system max. 7 m/min

belt speed for operation and pickup belts each max. 5 m/min

3-shift operation max. 60 vehicles/h continuous washing system

max. 8 vehicles/h portal washing system

max. 7 vehicles/h leak test cabin

water treatment

contaminants: solids, waxes, surfactants

water treatment for washing water: 10 m³/h

water treatment for testing water: 35 m³/h

Chemical industry – process water – cooling water

Supply, installation and commissioning of a cooling water filtration plant / cooling water purification plant

Technology & plant characteristics:

collision-free construction in 3D with old inventory

2 pieces double floor pressure filter (gravel filter)

piping, automatic valves and controls

plant flow rate: 2,000 m³/h

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Process water – wastewater – water recycling – container-plant

Planning and pre-assembly of a complete plant in container module design with factory test, delivery, installation and commissioning: treatment of waste water from the manufacture of medical articles with the aim of reusing the treated water in the production

Technology & plant characteristics:

process stages: chemical/physical pre-treatment, ultrafiltration, reverse osmosis, pure water tank with pressure boosting station and UV disinfection

separate treatment of a CHC-containing partial stream via activated carbon with subsequent discharge into the sewage system

plant capacity: adjustable in the range 1.7 – 4.1 m³/h

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Recycling of industrial saline water by ion separation, concentration and intelligent monitoring

As a research partner, BWS develops economic processes for the treatment of saline production wastewater with the aim of both water and salt recovery.
The project is funded by the Federal Ministry of Education and Research (BMBF). In the project consortium with leading companies from the chemical and alkali industries, universities, research and analytical institutes, BWS is responsible for the plant construction. According to the research results, BWS will develop and build a pilot plant for OARO (= Osmotic Assisted Reverse Osmosis) and HPNF (= High Pressure Nano Filtration). This is to be used for practical tests in industrially relevant applications. On the basis of these results, BWS will carry out a scale-up including a profitability analysis for technical applications.
In order to achieve the goal of reusing salts and water for subsequent processes, specific parameters must be maintained to ensure product quality and operational safety. This is to be achieved in this project through online-capable process monitoring as well as through automated and intelligent data evaluation using existing analytical modules.
More information about this exciting project? Please visit:

project homepage RIKovery

Wastewater Treatment

Sedimentation, filtration (sand filter, activated carbon filter etc.)
Flotation
Chemical-physical processes for (heavy) metal removal
Splitting of wastewaters containing hydrocarbons
Membrane process for the purification of wastewaters containing mineral oil
Biological wastewater treatment: aerobic or anaerobic processes
Sludge dewatering via chamber filter presses, belt filters, centrifuges, etc.
Ion exchanger process
Removal of trace substances
Ultrafiltration, nanofiltration, reverse osmosis for further purification of wastewater up to the so-called zero-liquid-discharge (ZLD)
Evaporator, Evaporator, Desorber

Some case studies of realized plants in the field of wastewater treatment:

EvaporatorUltrafiltrationWastewaterWater RecyclingWastewaterFlotationDI-WaterWastewaterWater RecyclingReverse Osmosis

Automotive – wastewater – evaporator technology

Treatment of oil-containing waste water, emulsions and washing water from mechanical production, hardening shop and wheel production with oil contents between 1 and 10 %

Technology & plant characteristics:

evaporator system via vapour recompressor

concentration factor between 85 and 95 %

treatment to reach indirect discharge quality with dosing units

capacity: 3.5 m³/h

Automotive – wastewater – chemical-physical treatment – ultrafiltration

Refurbishment/renewal of the waste water plant for the paint shop of an automobile manufacturer with dismantling of the old plant

Technology & plant characteristics:

treatment of waste water containing oil by ultrafiltration: 6 m³/h

acid and alkaline waste waters: 25 m³/h

waste waters containing nickel: 20 m³/h

waste waters containing paint: 20 m³/h

sludge treatment with chamber filter press

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Automotive – waste water – chemical-physical treatment – process water

Stepwise renewal of a DI & waste water treatment plant for the paint shop with dismantling of the old plant

Technology & plant characteristics:

treatment of waste water containing oil by ultrafiltration: 3 m³/h

3 continuous treatment plants for different partial flows: 25 m³/h, 12 m³/h, 6 m³/h

phosphate-containing waste water: 12 m³/h

2 batch reactors for special waste water: 25 m³ each

sludge treatment using chamber filter presses

Ion exchanger circulation plant: 12 m³/h

DI-water production: 30 m³/h

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Process water – wastewater – water recycling – container-plant

Technology & plant characteristics:

process stages: chemical/physical pre-treatment, ultrafiltration, reverse osmosis, pure water tank with pressure boosting station and UV disinfection

separate treatment of a CHC-containing partial stream via activated carbon with subsequent discharge into the sewage system

plant capacity: adjustable in the range 1.7 – 4.1 m³/h

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Paper industry – wastewater – container-plant – biology – water recycling

Biological treatment of process waste water from the paper industry

Technology & plant characteristics:

polluted process water is pumped from a sedimentation tank to the biological wastewater treatment plant. There the water is circulated in three reactors and continuously aerated via nozzles. Urea and phosphorus are dosed as nutrients for the microorganisms. From the last reactor, the water runs into a secondary clarifier where sludge and clear water are separated. The treated water is fed back into the process, the sludge is dewatered by a centrifuge and disposed of

contents: paper fibres, organic acids

capacity: 5 m³/h

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Life science – wastewater – chemical-physical treatment – dissolved air flotation

Engineering, delivery, commissioning of a wastewater treatment plant for wastewater with high COD content

Technology & plant characteristics:

fat separation, dissolved air flotation (DAF), sludge dewatering by decanter, prepared for later aerobic treatment and activated sludge flotation for direct discharge

capacity: 20 m³/h expansion to 800 m³/d planned

Ingredients: fats, lipophilic substances, COD, surfactants, aluminium

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Automotive – wastewater – chemical-physical treatment – DI-water plant

Engineering, supply, installation and commissioning of a wastewater treatment plant for wastewater from surface finishing

Technology & plant characteristics:

refurbishment of the existing waste water tanks

double batch reactor (2 x 16 m³/h)

2 thickeners (18 m³ each)

2 chamber filter presses built into containers

final treatment via sand filter, selective ion exchanger and final control

chemical storage and dosing

DI-water production (3 m³/h) via reverse osmosis with antiscalant dosing

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Chemical industry – wastewater – chemical-physical treatment

Installation of an adsorption plant for process wastewater containing mercury including on-site commissioning.

Technology & plant characteristics:

inlet buffer and neutralisation tank, sedimentation tank and discharge pump made of HDPE including agitator

dosing station for HCI, booster pump

sand filter, 2 activated carbon filters, ion exchanger

capacity: 5 m³/h

contaminants: mercury

Primary industry – wastewater – chemical-physical treatment – water recycling

Planning, delivery, installation and commissioning of a plant for rainwater retention as well as its treatment and reuse as service water by separating the heavy metal solid particles

Technology & plant characteristics:

three underground structures as pumping stations, each with a maximum capacity of 3,000 m³/h including piping system within a production plant

storage basins with a total of 9,000 m³ capacity

processing plant with a capacity of 5 m³/h including building of a hall

storage tank for service water with 500 m³ capacity

contaminants: mainly copper particles