Biological sewage technology for high purification performance

Transcription

1 WATEWATER B I O G E T Biological sewage technology for high purification performance

2 Wastewater treatment B I O G E T The BR-process The so-called batch technology represents a particularly interesting and effective operating method for wastewater treatment plants, and such plants are known as BR plants (equencing Batch Reactor). This process has a long tradition and was taken up again by BIOGET in the middle of the 1980s. Now that it has been adapted to modern technology, this operating mode is an inherent part of the market range for biological wastewater treatment plants. A changeover from flow-through to damming principles is taking place nowadays and realized in the BR-process. The combination of the activation and clarification stages in one tank reaction is a characteristic of this. The BR-process offers high process flexibility and is not sensitive to hydraulic peak loads. Moreover, the BR-process reliably eliminates nutrients and separates sludge and water perfectly. On top of this, the process results in extremely compact construction and therefore minimization of the investment costs. Thanks to the flexible plant geometry (tanks with circular, rectangular or square floor plans), BR-wastewater treatment plants from BIOGET can also be implemented without problems in difficult construction conditions (tourism areas, leisure facilities, high-rise buildings, etc.) as can be seen from the reference works shown on this page. In addition, plants which work with the BR-process can be extended using modules and also allow a wide range of operating strategies. Therefore, wastewater treatment plants (WWTP) based on the BR-process are modularly expand able and allow manifold operation strategies. Advantages BR-plant Compact construction Project related implementation Compensation of peak loads Low investment costs Low operating costs Automatical plant operation Low maintenance efforts Airport Tirana, Albania for PE Purification of sewage from chemical toilets of airplanes Hotel wastewater treatment plant in Bulgaria

3 Wastewater treatment B I O G E T Temporary sewage plant for further use at other locations. WWTP chwarzhausen, Germany for 230 PE (left) ewage treatment in iberia. WWTP Nowoagansk for 200 m 3 /d (right)

4 urface aeration B I O G E T The CROWN surface aerator The CROWN surface aerator was developed by BIOGET in cooperation with the University of Darmstadt for the circulation and oxygen provision to the wastewater activated sludge mixture in biological wastewater treatment plants. This ensures circulation and oxygen provision to the wastewater activated sludge mixture in aeration basins or BR-reactors. The susceptibility, operation and maintenance of this compact and robust functional unit (stainless steel construction) have been reduced to an absolute minimum. This means that the CROWN surface aerator is considerably in advance of expensively designed membrane aeration systems. A BR-wastewater treatment plant of BIOGET can consist of only one BR-reactor if supplemented with a shredding unit, since this enables the plant to work without provision of a mechanical pre-clarification stage or a sludge silo. The CROWN surface aerator has been successfully used for many years. It has now been installed in more than 150 individual plants. Lateral arrangement of a surface aerator Optimal results with low maintenance efforts Advantages CROWN surface aerator Decades of service life High operational reliability Low maintenance costs High oxygen yield Extendable with solids shredder. urface aerator in use. The intensive circulation and aeration performance provided by the system can clearly be seen.

5 Decanting CROWN clarified water decanter Type DK/W The CROWN decanting system was developed by BIOGET with the aim of providing operationally reliable clarified water extraction in BR-wastewater treatment plants or damming plants. This system stands out since it extracts clarified water without floating and activated sludge while consuming almost no energy. The CROWN decanting system is especially suitable for clarified water extraction from BR-reactors, for solids-free extraction during the clarified water phase in drinking water treatment plants and also for sludge liquor extraction from sludge storage tanks. BIOGET CROWN decanter Type LF The CROWN Type LF decanter was specially developed for process control task definitions requiring the extraction of low-density liquids out of retention tanks. For this reason, the CROWN Type LF decanter is for example suitable for light liquid extraction from surface water collection basins (road drainage, airport runway drainage, etc.), sludge liquor extraction from sludge storage tanks or for predominantly sludge-free clarified water extraction from storage basins. CROWN decanter Type LF CROWN decanter Type LF: Inlet head with bar screen Advantages CROWN decanter systems Decades of service life High operational reliability Low maintenance costs Turbulence-free clear water discharge Adjustable clear water discharge capacity Clear water discharge without energy Constant clearwater discharge rate Clearwater discharge free of sludge (Type DK/W) CROWN decanter Type DK/W: Installation situations

6 Wastewater treatment B I O G E T The mobile PURITAINER WWTP With the PURITAINER, BIOGET has developed an effective and compact ready-to-connect wastewater treatment plant which purifies wastewater using the BR-process. Thanks to the use of system components, delivery at short notice for urgent applications is possible. The container construction method simplifies transport and the system is ready for direct connection on site (complete preassembly in the factory). The PURITAINER is extremely reliable and simple to operate due to the use of established plant technology. Its operation is completely automatic and offers a permanently high purification performance. PURITAINER sewage treatment plants can be manufactured in different graded system sizes so that they can be used for loading values of up to around 250 PE. It is also easy to extend the plant thanks to its modular arrangement. Pump unit fittings Control panel Advantages PURITAINER Fast realisation Compact container-design construction manufactured to IO standards Ready-to-connect unit Fully automatic plant operation Possibility for modular extension Modular PURITAINER arrangement

7 Wastewater treatment B I O G E T Application possibilities PURITAINER wastewater treatment plants can be used anywhere where domestic wastewater is to be biologically purified. Ideal application cases are camps, housing estates, hotels, restaurants, hospitals and sanatoriums, barracks, campsites and holiday villages. The well-engineered PURITAINER wastewater treatment plant design ensures that the purification performance is high enough for the purified wastewater to be discharged into rivers, lakes or other waterways without problems despite the often unfavorable operating conditions associated with smaller connected loads. The wastewater purified in the PURITAINER can of course also be sustainably reused, for example in the irrigation of green areas, for concrete manufacturer or additions to cooling water. These are interesting economic aspects, especially in countries with limited water reserves. In such cases, the PURITAINER waste water treatment plant can be supplemented with a disinfection stage if necessary. Construction PURITAINER wastewater treatment plants from BIOGET are always manufactured as steel construction protected against corrosion. This robust material has proven itself in more than 200 applications. The decisive benefits in this case are simple implementation of repairs and the low weight in comparison with concrete. The PURITAINER sewage treatment design is based on the many years of experience which BIOGET has assimilated both at home and all over the world. It goes without saying that the applicable national regulations or tender conditions are considered in every case.

8 WATEWATER B I O G E T Innovative concepts for environmental technology Copyright BIOGET AG BIOGET AG iemensstraße Taunusstein Telefon: / info@biogest.com