In den Leppsteinswiesen 9
Phone +49 6154 6998-0
EFFICIENT WATER AND WASTEWATER TECHNOLOGY
Custom-made wastewater and water treatment
Many areas of the food and drink industry are characterised by wastewater with high levels of organic contamination. Depending on the nature of the site concerned, the wastewater may need to undergo comprehensive treatment before it can be discharged directly or may need to be pre-treated before it reaches the public sewage system. Companies within the food and beverage industry are already using the Biomar® series of biological anaerobic and biological aerobic treatment systems, either as standalone solutions or in combination with other products. The Flomar® series of flotation plants are a tried-and-tested technology for the pre-treatment of wastewater. Firms specialising in the food trade are opting for the Lugan® series of compact plants.
Energy from wastewater
Biomar® anaerobic reactors allow up to 90% of the organic content of wastewater to be broken down and converted into biogas. Thanks to EnviroChemie’s patented technology, highly concentrated substances such as whey can also be treated. This award-winning technology is being used successfully at Norrmejerier, a dairy in Sweden which is one of our reference projects.
Biomar® ASBx wastewater treatment plant in use at a winery
The Trautwein winery produces a wide range of wines and juices. The production process results in wastewater that has to undergo treatment before it can be discharged into the sewage system. For this reason, a Biomar® ASBx anaerobic wastewater treatment plant has been installed.
1150 m³/d (max. 10 m³/h)
Inflow into wastewater treatment plant
Max. 2.5 t/d, 16,700mg/l
Outflow from wastewater treatment plant
< 560 mg/l
< 280 mg/l
Biomar® ASBx wastewater treatment plant for the Trautheim winery in Lonsheim, Germany
Norrmejerier dairies, Umeå, Sweden
Energy from wastewater with Biomar® biological wastewater treatment
In June 2005 at the Norrmejerier dairies in Umeå (Sweden), the Swedish environment minister, Lena Sommestad, inaugurated the company’s first Biomar plant for the biological treatment of wastewater. The project was sponsored by the EU.
The organic substances left behind by rinsing during milk processing and found in the whey and whey permeate are acidified, hydrolysed and conditioned. This creates the optimum conditions for subsequent anaerobic wastewater treatment, which takes place inside two methane reactors. Here, acetic acid is converted into biogas so that it can be reused at the dairy.
The Biomar wastewater treatment plant cleans and disposes of wastewater from production as well as generating biogas. Not only does this represent best ecological practice, but there are also economic benefits. Ever since the Norrmejerier dairies started feeding in whey permeate from other factories they own in northern Sweden, they have been able to produce 8000 m3 of biogas per day. The gas is used to generate steam, thereby reducing fuel costs at the dairy.
“In this way, not only are we saving on primary energy, but we are managing to reduce our costs by 2500 euros a day”, says Olof Wallin, the man behind the company, with pride. “The others have certainly got some catching up to do…”
Biomar® biological wastewater treatment plant for whey permeate and wastewater from production featuring energy recovery
Biomar® methane reactors for biological wastewater treatment
Givaudan Deutschland GmbH, Dortmund, Germany
Split-O-Mat® NOM – Continuous wastewater neutralisation
Givaudan, whose headquarters are in Switzerland, is the global market leader in the field of flavours and fragrances. At its German production site in Dortmund, it produces and sells flavourings and ingredients for the food industry as well as fragrances aimed primarily at the perfume and cosmetics industry.
This site required a new automatic continuous neutralisation plant for treating the wastewater generated within the context of production and cleaning as a result of the cleaning processes used for the exhaust air as well as the tanks and floors.
The wastewater generated in this way is contaminated by water-soluble organic compounds (organic acids such as acetic acid, citric acid).
The contract included:
Permit planning for construction and operation of the neutralisation plant including applying for a discharge permit pursuant to section 58.2 of the state water act and the ordinance on indirect dischargers
Supplying the new pre-separators plus wastewater storage and emergency overflow tank featuring tank aerator designed specifically to cope with the quantities of wastewater involved
A plant room in the form of a prefabricated concrete garage with integrated continuous neutralisation plant
A stacker-compatible changeover station for the neutralising agent
Quantity of wastewater
Max. 300 m³ per day (max. 50 m³/h)
pH value 2.0 - 12.0
Max. 60° C (when it enters the pre-separator)
Approx. 45 m2
PLC, process visualisation
EHRMANN AG · MOSCOW · RUSSIA
ANAEROBIC/AEROBIC TREATMENT OF DAIRY EFFLUENTS
The production of joghurt at this plant also generates 600 m³ of waste waterper day. In order to minimize running costs a significant reduction of the sludge volume and the generation of biogas were envisaged. After the solid matter has been separated the effluent flows into a stirred buffer tank where variations of flow, pH and fat content are balanced out. The tank is sufficiently sized for emergencies. The organic substances hydro-lize after pH’s adjustment. This is followed by flotation, which separates the lipophile substances from the effluent. A feed/treated effluent heat exchanger improves the energy balance of the treatment system. The main element of the treatment process is the Biomar® AKB reactor which creates a controlled anaerobic environment, in which the effluent is biologically cleaned. The biogas is used for the production of steam which can be used in the dairy process. The anaerobic treatment is followed by activated sludge treatment, which further reduces COD, BOD, nitrogen and phosphorus. The effluent from this aerobic process meets high quality standards set by the municipal authorities. The effluent then gravitates to the final clarification tank. The process only produces small amounts of surplus sludge. Exhaust air is collected and mineralized in the activated sludge tank. A programmable logic controller (PLC) and a process visualization system support complete automatic operation. The plant fulfills all environmental requirements with regard to water, air and noise pollution.
< 5.000 mg/l
anaerobic + aerobic
50 m x 30 m
programmable control, process visualisation
stainless steel, isolated
> 1.200 m3/d
-35°C up +40°C
Anaerobic/aerobic waste water treatment with Biomar® AFB-OSB
SAVING COSTS USING BIOMAR® AFB ANAEROBIC TECHNOLOGY
Description of the plant
After an extension of prodction the processing of milk to cheese and milk products produces up to 2000 m³ waste water daily. The existing biological aerobic waste water treatment plant (WWTP) is designed for 600 m³/d.EnviroChemie extended the existing WWTP with an anaerobic Biomar® AFB WWT unit for a capacity of 2000 m³/d.
Features of this concept are small area requirement, low operation cost as well as gain of fermentation gas and reduced excess sludge. The waste water from several production departments is collected in the central pumppit. After separation of big parts in the fine-meshed sieve the waste water is pumped to the preacidification, which also works as a buffer. Before the preacidified waste water enters the Biomar® AFB reactor the flotation separates fats and cheese particles. In the Biomar® AFB reactor organic waste water constituents, like lactic acid, alcohols and other organic compounds are digested by micro organisms into methane and carbon dioxide (fermentation gas). COD and BOB load of the waste water strongly decreases (approx. 80%). The final polishing treatment is made by the existing aerobic waste water treatment unit. The fermentation gas is taken off and used in a high-speed steam generator.
programmable control, process visualization
ca. 900 m3
stainless steel, isolated
ermentation gas removal:
approx. 2000 m3/d
Biomar® AFB reactors
Boiler for energetic use of fermentation gas
MAKING NEW OUT OF THE OLD
The company Polobst in Góra Kalwaria, Poland, produces apple juice concentrate. The waste water treatment plant already in place no longer meets the client’s capacity and quality demands. EnviroChemie offered the economical complete solution of a Biomar® aerobic treatment plant combined with the current equipment. The turnkey project included the modernization and automatization of the equipment already in place. The solution produces water which meets all requirements for a direct feed into rivers.
aerobic biological waste water treatment
Waste water type:
production of apple juice concentrate
aerobic biologic waste water treatment Biomar® for an apple juice concentrate producer