illustration: Steri-Fix E Thermal WasTeWaTer sTerilisaTion anD DeacTivaTion envirochemie - international competence in water and wastewater technology Reliable and innovative technology for water and wastewater treat- Thus, we ensure that local needs for innovative and environmen- ment is what we stand for. As partners to the industry, we develop tally friendly water and wastewater technology are always satis- and implement customised solutions for our customers. fied. We concentrate our efforts in meeting the individual require- ments of each of our customers. We are an engineering company and offer a holistic range of ser- vices based on our long international experience. We have always We supply highly qualitative “Made in Germany” products based our clients on focus and assess them in the design, planning, engi- on chemical-physical, biological and membrane filtration pro- neering, building and commissioning of our plants. We remain al- cesses, whose state of the art relies on our long list of research ways close partners. Regardless if it is a common research project achievements and patents. Additionally, more than 25,000 plants or the operation of the wastewater treatment plant, we are always sold worldwide have provided us with the necessary know-how for nearby. Our commitment knows no limits, taking us to even accept further continuous development of innovative and reliable industrial the responsibility of taking over the whole water management in water and wastewater technologies. situ. Our international activities are supported by seven develop- ment and production sites in Germany and Switzerland. Together with our international sales and service offices, we are represented at fifteen different locations. EnviroDTS in Friedberg (Germany) EnviroChemie in Rossdorf (Germany) Russia Sweden Netherlands Poland Germany Austria Romania Switzerland Bulgaria Spain Brazil 2 ENVIRO dts - reliaBle technology For thermal wastewater sterilisation and deactivation EnviroChemie offers –through its subsidiary EnviroDTS in Friedberg (Germany)– intelligent solutions for a realiable and decentralised waste- Our expertise and solutions at water treatment in biotechnology and healthcare facilities. These your service include: effluents are commonly characterised by their high or very high bioha- zard risk. Our EnviroDTS wastewater treatment plants are optimal for Decontamination laboratories (even containment level 3 and 4 laboratories), universities, of radioactive wastewater research facilities, industrial applications, government agencies (e.g. ani- Neutralisation mal disease control agencies) and healthcare facilities. Precipitation EnviroDTS plants are designed to safely deactivate, sterilise or disin- Ion exchange fect wastewater containing infectious or genetically altered materials via Thermal disinfection thermal sterilisation. Simultaneously, microorganisms and bacteria are Chemical disinfection eliminated in this process, while at the same time viruses, plasmids and Softening DNA fragments can be deactivated. The EnviroDTS sterilisation process Complete desalination additionally ensures an optimal sterilisation output at the most efficient Ultra-filtration energy input. Nano-filtration 30 years experience and a know-how based on circa 1000 reference in- Reverse osmosis stallations blend the advantages of an innovative and proven technology Electro-deionisation with a flexible process control. 3 s teriFiX c EnviroDTS SteriFix C 500 at the State Office for Consumer Friedrich­Loeffler­Institut in Jena (Germany) Protection in Saxony, located in Dresden (Germany) SteriFix C 500 with steam generator (built in ISO shipping SteriFix C 2500 at the Friedrich­Loeffler­Institut in Jena containers) at the State Office for Food Monitoring and Con­ (Germany). Performance: 12 m³/d sumer Protection in Rostock (Germany) SteriFix C – BatCH teCHnOlOGy FOr a SaFe waStewater SteriliSatiOn SteriFix C wastewater treatment plants are optimal for vol- By doing so, the heat of larger wastewater amounts can be umes up to 10 m3 per day. By using the EnviroDTS batch reused, and the cooling demand, that is required to reach the technology, all the desired retention times and sterilisation output temperature (sewer), is reduced. temperatures of up to 180°C can be reached, thereby achiev- ing a very high deactivation effectiveness. Additionally, the safety of the system is improved through re- dundant design. Nevertheless, in situations where very limited Wastewater is heated in this plants to the targeted sterilisa- room is available, a single container system can also be imple- tion temperature using either steam injection (SteriFix types mented. C 500 and C 2500) or –for smaller wastewater amounts– an electric heater (SteriFix C 100). Since safety has always the highest priority, a sterile filter at the air vent is installed to guarantee the sterility of the Highest energy efficiency is achieved by implementing a exhaust air coming out of the equipment. Moreover, a design special equipment design with the most modern process free of dead volumes with integrated magnetic stirrer or cir- technology, which includes the combination of two double culation pump ensures the safe sterilisation of every single jacketed vessels. drop of water. 4 s teriFiX c SteriFix C 2500 with two sterilisers at the vaccine factory The compact plant SteriFix C 100 for a maximum of 100 litres Impfstoffwerk Dessau GmbH in Rodleben­Tornau (Germany) per day and equipped with electrical heating and SPS S7 control system i nstallation of a SteriFix C 2500 in a vaccine production advantages of this technology: facility Flexible operation The company Impfstoffwerk Dessau GmbH in Rodleben- Limited operating and investment costs Tornau develops and produces high quality animal vaccines No risk of bacterial contamination of treated water and veterinary drugs in Germany. Their products are exported The plant can function under pressure, so that there worldwide. A broad palette of vaccines for domestic and farm is no need of an additional pumping station animals as well as certain pharmaceuticals for reproduction Insensitive to the presence of solids in the wastewater control and parasitic prophylaxis characterise the product Sterile air exhaust portfolio of Impfstoffwerk Dessau GmbH in the animal health sector. Wastewater generated at this facility cannot be discharged di- Characteristics: rectly into the sewer. For the disinfection of this occasionally produced and highly infectious wastewater, EnviroDTS de- Complies all EU standards signed and built a thermal deactivation plant based on batch Optimal for wastewater containing solids technology. Easy validation Incoming wastewater leaves the stainless steel buffer tank Safe sterilisation procedure and enters one of the two available sterilisers. Steam is di- Wastewater volumes up to 10 m3 per day rectly injected into the wastewater to raise the temperature. Avoidance of cross streams through leakage control Both temperature and retention time are closely monitored Plant can be completely sterilised and recorded throughout the whole process. The water-glycol mixture within the jacket space is used for heat recovery and to cool the batch. This mixture goes from technical performance: the first to the second sterilizer and warms it up. For further cooling, additional coolants (e.g. an air cooler) may be used. No dead volumes (100% safe sterilisation) Temperature and time are variable and are monitored throughout the process SteriFix C 100 for a maximum of 100 litres Electrically heated sterile air filter Pneumatic draining, i.e. no need of pumping station The smallest of our plants, the SteriFix C 100, can be ap- Free of clogging due to double jacket technology plied to wastewater volumes as low as 100 litres per day, and steam injector which are free of suspended solids. It has a double jacketed Siemens SPS S7 control system steriliser with electrical heating. A magnetic stirrer ensures Output temperature > 35°C a thorough mixing. After the sterilisation is completed, the Plug valves without dead volumes sterilised wastewater is cooled down using coolants which High operational safety due to redundant plant design are circulating inside the jacket space. 5 s teriFiX e Particularly large SteriFix plant at the Paul­Ehrlich Institute in CIP Station at the Clinic Großhadern, München (Germany) Langen (Germany). Performance 2 x 10 m³/h / 121°C / 20 min. SteriFix E 250 at Phyton Biotech GmbH, Ahrensburg Retention phase at the CODA Institute of Veterinary, (Germany). Performance 250 l/h / 134°C / 2 min. Machelen (Belgium). Performance 3 m³/h / 121°C / 20 min. SteriFix e – COntinuOuS and reliaBle waStewater SteriliSatiOn SteriFix E wastewater treatment plants are optimal for treat- ment of continuously incoming wastewater at amounts up to 120 m3/d. Using the EnviroDTS continuous process technol- ogy, the energy needed for sterilisation can be minimised by means of an effective heat recovery system. Incoming wastewater is firstly pre-heated using the high temper- ature of the disinfected effluent leaving the plant. Directly after that, it is warmed up to the necessary sterilisation temperature using a steam injector. Due to this effective heat exchange be- tween outlet and inlet, the temperature at the discharge point is thus reached without any additional cooling. The disinfection process is monitored and regulated by the retention time and the output temperature. A sterile filter at the air vent ensures the sterility