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Innovative scalable MBBR system 

DAS Environmental Expert GmbH from Dresden presents a scalable MBBR system for the food industry at Anuga FoodTec. In Cologne, the environmental technology experts will present customized solutions for wastewater treatment in the food and beverage industry from April 26 to 29, 2022 in hall 10.1 at booth E091. 

The medium-sized company, which specializes in plants for keeping air and water clean, has already implemented quite a few wastewater treatment plants for the food industry worldwide. Wastewater treatment plants from Dresden have been successfully in operation for years at manufacturers of soft drinks, dairies, or companies from the potato processing sector. 

Effective wastewater treatment for the food and beverage industry 

At this year’s leading global trade fair for the international food and beverage industry, the company is focusing on the MBBR process for biological wastewater treatment. “The Moving Bed Biofilm Reactor uses microorganisms growing as a biofilm on a carrier material for water treatment. They take over the degradation of both organic wastewater ingredients and nitrogen compounds. For this purpose, they are cultivated specifically on the carrier material after an intensive analysis of the individual requirements. The special packing provides the microorganisms with a particularly large surface area for growth,” says Dr. Anita Haupt, head of process engineering for water treatment, explaining the process. Aeration of the reactor ensures that the liquid is constantly mixed, thus also ensuring optimum contact of the wastewater ingredients with microorganisms and air bubbles. If necessary, the fluidized bed process can also be used without aeration; in this case, mixing is carried out by means of mixing nozzles or agitators.

Modular MBBR reactors in four standard sizes 

The company uses a carrier material that is characterized by a very high specific surface area, which enables a compact plant design. In the future, the technology leader will offer its modular reactors in four standard product sizes with the product group name “SALVINIA”: SALVINIA 70, SALVINIA 170, SALVINIA 470 and SALVINIA 1060 each differ in size. “The numbers stand for the reactor volume in cubic meters and allow differentiation according to wastewater volumes and the degree of contamination of the wastewater – for effective and efficient wastewater treatment entirely according to our customers’ needs,” Dr. Anita Haupt continues. She adds, “Our solution saves time and money because it is quickly available thanks to its standardized modularity – the duration from planning to commissioning is short.” In addition to its effectiveness, the process has other advantages: it is uncomplicated and economical to operate, its robust reactors function well even under challenging operating conditions, and the small amount of solids to be disposed of eliminates the need to recycle biomass into the process – unlike conventional activated sludge processes with similar capacity. 

Broad portfolio for individual wastewater treatment 

Because wastewater treatment requirements are unique to each project, the portfolio includes standardized and customized MBBR plants as well as a wide range of other processes and customized solutions. As a full-service provider, the Dresden-based environmental experts support industrial companies worldwide in optimizing their wastewater treatment – regardless of whether a single biological treatment stage for wastewater is to be installed, a wastewater treatment plant is to be built or a factory is to be completely equipped with wastewater technology. 

News Operation & Maintenance Processing Technologies

Stabilization of plastic exhaust systems during implementation



According to the exhaust specialist ATEC from Neu Wulmstorf, the Vario roof flange can be mounted on all roofs with high fitting accuracy. The selection is based on the roof pitch and the required nominal size. In addition, the flange is suitable for temperature classes T200 and T250 – and ATEC has had this certified with a general design approval.

The new product combines two components: first, the flange itself, which provides a stable connection between the roof elevation and the roof structure, and second, the optional seal, a self-adhesive vapor retarder. The company provides two versions: for roof pitches between 0° and 30°, and from 30° to 60°, each in eight nominal sizes between DN60/100 and DN250/315. It is also compatible with plastic and metal exhaust systems up to a nominal operating temperature of ≤ 250 °C.

The flange consists of a stainless steel clamp to which two retaining lugs/articulated brackets are welded at the factory. This is accompanied by a cover plate measuring 450 x 450 mm and 0.5 mm thick. With the help of malleable perforated strips, the exhaust pipe together with the Vario roof flange is screwed into place. This allows the Vario to be used flexibly both in new buildings and in existing properties.


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News Operation & Maintenance Processing Technologies

Modern user interface impresses international jury



SIG’s new intuitive Human Machine Interface (HMI) “SIG CRUISER” has been awarded the prestigious iF DESIGN AWARD 2022 in Gold – one of the most important design awards in the world. This part of SIG’s next-generation filling technology enables customers to easily control their entire production process. The user interface is designed to make the operator’s job much easier, while reducing the need for training and prior experience.

The award has been presented annually since 1954 by the iF Industrie Forum Design for outstanding achievements in product design. The company impressed the 132-member jury, which is made up of independent design experts from around the world, and won the award in the “User Interface (UI)” category. Out of nearly 11,000 entries, SIG CRUISER was awarded gold as one of 73 outstanding design achievements.

The judges made the following statement, “With a user-centric approach and sound development methodology, SIG CRUISER provides consistency from the store floor to the top floor, ensuring quick response times and convenience for both the operator and the service team. The user interface is exceptionally simple and user-friendly in terms of operations, layout and graphics, allowing a single operator to control the entire line.”

Today’s competitive environment requires companies to increase production and margins and optimize available equipment. To get the most out of filling lines, it is critical to reduce the risk of downtime and to interconnect, automate and monitor lines for maximum efficiency. The new user interface makes it possible to control the entire filling line. It displays KPIs in an intuitive way.

“This prestigious global design award is the result of the good cooperation between SIG and our partner, HMI Project GmbH. We are very proud that SIG CRUISER stood out from thousands of submissions and convinced the 132-member jury to award an iF DESIGN AWARD in Gold.”

– Stefan Mergel, Senior Product Manager Equipment

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Ingredients & Auxiliary Materials News Pharmaceuticals Processing Technologies

Innovative insights into emergence and classification into subtypes



One of the deadliest tumor types is pancreatic cancer . The disease is often only discovered in locally advanced or metastasized tumor stages, when surgical intervention comes too late. Researchers led by Dr. Ivonne Regel of LMU Klinikum in Munich have now gained important new insights into the causes of tumor development. They have also succeeded in defining different tumor subtypes based on differences in their metabolic programs. Funded by the Wilhelm Sander Foundation, they are thus making a significant contribution to early detection and to individualized medicine in order to improve the chances of recovery for pancreatic cancer patients.

Pancreatic ductal adenocarcinoma, also known as pancreatic cancer, is a relatively rare but particularly malignant disease. It represents the fourth leading cause of cancer-related deaths in the European Union, and only about 10 percent of patients survive the first five years after diagnosis. This is due to aggressive growth and late diagnosis of the tumor. Pancreatic cancer often manifests itself only after other organs have already been affected and metastases are present. To improve the chance of cure for pancreatic cancer patients, it is of great urgency to find new biomarkers for early detection. Another essential step is to identify tumor-specific signaling pathways that cause aggressive disease progression in order to identify new targets for therapeutic approaches.

TLR3/IRF3/IRF7 signaling pathway critical for pancreatic cancer development

Pancreatic cancer development is a dynamic process involving tissue damage and inflammatory response in the pancreas. When pancreatitis occurs, the organ has a self-healing mechanism. Normal pancreatic cells can divide to replace damaged tissue. Molecules released during inflammatory and tissue-damaging processes are recognized by cell receptors, relaying signals that promote cell survival and division.

However, in pancreatic cells, this can contribute to cell degeneration and promote the development of pancreatic cancer. Researchers led by Dr. Ivonne Regel were able to show for the first time that the signaling pathway plays an important role in inflammatory responses not only in immune cells, but is also active in pancreatic cells of precursor lesions and tumor cells. This activation of the signaling pathway has an important function in pancreatic cancer development. Genetically-altered mice lacking a functional signaling pathway are unable to develop pancreatic carcinomas (see Figure). Similarly, it was genetically knocked out in pancreatic tumor cells using CRISPR/Cas9 gene scissors. These genetically modified tumor cells exhibited significantly less aggressive behavior in cell culture experiments and also showed greatly reduced metastasis in animal models.

“For the first time, we were able to demonstrate that an active signaling pathway in pancreatic cells contributes to the development of pancreatic cancer and also supports the formation of metastases.”

– Ivonne Regel

Dr. Regel’s team has made another exciting discovery: In pancreatic tumor cells, the signaling pathway surprisingly does not regulate known target genes; instead, evidence was found for epigenetic modifications. These are regulatory modifications to DNA and packaging proteins (histones) that influence the activity of genes. Thus, the current research results indicate that activation of the signaling pathway in tumor cells leads to high levels of transcription of specific tumor-promoting genes.

These genes primarily regulate tumor cell metabolism. This is particularly important because metabolites of tumor cells can be found in the blood of patients and can be used as biomarkers. “My team and I have succeeded in identifying different subtypes of pancreatic cancer from the blood of cancer patients based on differences in their metabolic programs” said Dr. Regel. “In further studies, we now want to find out to what extent the development of pancreatic cancer subtypes is regulated by the signaling pathway.”


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