Whether treatment facilities need to rehabilitate, retrofit, upgrade or expand existing assets, Siemens offers sustainable solutions that help plants reduce costs, improve operations, comply with new regulations and save energy.
The Vertical Loop Reactor system from Siemens can be easily retrofitted into existing space with minimal operator attention. Photo: Siemens AG
“We are finding that system retrofits are increasingly popular in the face of more stringent effluent discharge regulations and nutrient removal requirements,” said Paul Rice, municipal market manager for Siemens Water Technologies. “Plants can achieve significant operating cost savings by retrofitting their existing infrastructure with newer, energy saving technologies.”
Siemens offers equipment that meets or exceeds discharge regulations in a small footprint that can be easily retrofitted into existing space with minimal operator attention. This includes the VLR vertical loop reactor, Cannibal sludge reduction system, VertiCel aeration system, Orbal oxidation ditch, Trident HS filtration and clarification systems, Forty-X disc filter, Gravisand filtration systems and the Memcor CS submerged ultrafiltration system.
Additionally, Siemens continues to develop innovative new technologies and redesign existing technologies that use less energy and reduce long-term lifecycle costs. For example, by combining the VLR system with the MemPulse membrane bioreactor (MBR), a plant can reduce its overall energy by up to 30%. The Link2Site Flex system is a wireless-to-web remote monitoring and control solution that can be added to equipment or processes to optimize operation through reduced maintenance and service costs.
A city in the Midwest significantly reduced wastewater treatment plant operating costs by upgrading its old conventional plant. The plant abandoned its primary clarifiers, converted its fine-bubble aeration tanks to VLR systems and turned the anaerobic digesters into the Cannibal solids reduction system. They also added two new VLR tanks and three new 80-foot diameter final clarifiers with Tow-Bro clarifier suction removal mechanisms. The upgrade has reduced the plant’s aeration power costs and solids volume, while improving effluent quality.A sequencing batch reactor (SBR) facility in Pennsylvania needed to improve its total suspended solids removal, as their slow sand filter had ceased to function properly. The solution was a “plug and play” installation consisting of a Forty-X disc filter placed on top of the existing SBR equalization tank. The filter’s small footprint saved the facility additional civil work.
The Sanitary Board of Bluefield, West Virginia experienced filter problems in their wastewater effluent polishing, and decided to upgrade the existing two-pump traveling bridge filters.
They chose to replace all three of their traveling bridge filters with a retrofitted system that incorporated the Gravisand filter system from Siemens. After the installation, the plant’s operators experienced flawless filter performance and desired effluent quality, as well as an easy to operate system with less required maintenance.
Besides providing innovative technologies and equipment, Siemens also offers retrofit and rehabilitation services, which involve conducting a comprehensive review of the client’s water treatment equipment and controls, as well as current operating procedures and data. Siemens then provides a detailed report with recommendations for improving the treatment system.Further information about solutions for water treatment is available at:
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20.09.2017 | Albert-Ludwigs-Universität Freiburg im Breisgau
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19.09.2017 | DOE/Lawrence Berkeley National Laboratory
Plants and algae use the enzyme Rubisco to fix carbon dioxide, removing it from the atmosphere and converting it into biomass. Algae have figured out a way to increase the efficiency of carbon fixation. They gather most of their Rubisco into a ball-shaped microcompartment called the pyrenoid, which they flood with a high local concentration of carbon dioxide. A team of scientists at Princeton University, the Carnegie Institution for Science, Stanford University and the Max Plank Institute of Biochemistry have unravelled the mysteries of how the pyrenoid is assembled. These insights can help to engineer crops that remove more carbon dioxide from the atmosphere while producing more food.
A warming planet
Our brains house extremely complex neuronal circuits, whose detailed structures are still largely unknown. This is especially true for the so-called cerebral cortex of mammals, where among other things vision, thoughts or spatial orientation are being computed. Here the rules by which nerve cells are connected to each other are only partly understood. A team of scientists around Moritz Helmstaedter at the Frankfiurt Max Planck Institute for Brain Research and Helene Schmidt (Humboldt University in Berlin) have now discovered a surprisingly precise nerve cell connectivity pattern in the part of the cerebral cortex that is responsible for orienting the individual animal or human in space.
The researchers report online in Nature (Schmidt et al., 2017. Axonal synapse sorting in medial entorhinal cortex, DOI: 10.1038/nature24005) that synapses in...
Whispering gallery mode (WGM) resonators are used to make tiny micro-lasers, sensors, switches, routers and other devices. These tiny structures rely on a...
Using ultrafast flashes of laser and x-ray radiation, scientists at the Max Planck Institute of Quantum Optics (Garching, Germany) took snapshots of the briefest electron motion inside a solid material to date. The electron motion lasted only 750 billionths of the billionth of a second before it fainted, setting a new record of human capability to capture ultrafast processes inside solids!
When x-rays shine onto solid materials or large molecules, an electron is pushed away from its original place near the nucleus of the atom, leaving a hole...
For the first time, physicists have successfully imaged spiral magnetic ordering in a multiferroic material. These materials are considered highly promising candidates for future data storage media. The researchers were able to prove their findings using unique quantum sensors that were developed at Basel University and that can analyze electromagnetic fields on the nanometer scale. The results – obtained by scientists from the University of Basel’s Department of Physics, the Swiss Nanoscience Institute, the University of Montpellier and several laboratories from University Paris-Saclay – were recently published in the journal Nature.
Multiferroics are materials that simultaneously react to electric and magnetic fields. These two properties are rarely found together, and their combined...
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