Siemens assists these plants in becoming more sustainable through better energy management. From energy analysis modeling and innovative technologies to automation and financing, Siemens can help put today’s wastewater plants on the road to “net-zero” energy.
This wastewater treatment plant integrates a Siemens Vertical Loop Reactor, TowBro clarifier and a Cannibal system to provide high effluent quality, a reduction in power costs, and less solids wasting. Photo: Siemens AG
“Energy management entails a wide range of solutions, from reducing biosolids, to adding the latest biological treatment processes, high efficiency aeration solutions and control systems, to project financing,” said Lutz Kranz, head of global municipal business for Siemens Water Technologies. “There is no one solution that fits everyone. So, we look at the total project to determine water quality and treatment needs and then recommend options, which may include multiple technologies and automation. We also look to see if we can offer attractive financing options to help get high-return, energy minimization projects moving.”Siemens can help engineers and owners determine whether they need to improve one specific area or the whole treatment operation to achieve the lowest lifecycle cost, based on what is best for their plant and budget. The long-term goal is to help them get as close as possible to net-zero energy.
Understanding power consumption is a key component to determining technology solutions for wastewater treatment. Siemens’ engineers use a proprietary power calculator tool that takes into account regionalized energy cost trends, anticipated start-up volume, and diurnal flow patterns.
They then run ‘apples to apples’ economic comparisons of the company’s broad range of technologies to determine which ones will save owners the most in energy costs.
Reducing Energy Use
Siemens offers a biological process optimization program that evaluates specific cost factors such as energy use, labor and disposal. The program integrates several key wastewater operations, including biological, solids separation, solids treatment, and controls, to significantly reduce energy costs. For example, a California wastewater treatment plant was able to reduce biosolids production by 70% and the aeration requirements from their aerobic digester by more than 90% with the Cannibal interchange bioreactor system from Siemens.
Another way plants can save on costs is by adding control and telemetry systems that make the whole process more efficient. Siemens can integrate all processes under a unified, easy to operate control system that maximizes the energy efficiency of the treatment technologies and also gives the engineer and owner a single point of responsibility in coordinating the control strategy and operation. As an example, 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.
When municipalities need an alternative to traditional funding methods, Siemens Financial Services offers tax-exempt financing, which spreads the cost of capital equipment acquisition over the life of the assets being financed; thus, it fits today’s equipment life cycles, and helps keep technology up to date. This financing can be used to support traditional project delivery models and also alternative project delivery models including equipment lease-purchase, design-build, design-build-finance, and guaranteed savings performance contracts. Guaranteed savings performance contracts are becoming an increasingly popular way for municipal wastewater treatment customers in North America to fund capital improvements that reduce energy use, operation costs and labor. Project costs are paid for in part or in total, with guaranteed savings generated from implementing process improvements for the facility, such as biosolids reduction, methane gas creation and usage, water conservation and reuse, high-efficiency dryer installation, aeration system upgrades and SCADA system improvements.
Innovating for the Future“The future of energy management lies in being able to close the gap between what we can help customers achieve today and achieving net-zero energy in the future,” says Marc Roehl, Global Product Manager for Biosolids Technologies at Siemens Water Technologies. “We know that the energy value of municipal wastewater is 10 times greater than the energy required to treat it. But we only re-use a fraction of that energy. We’re working to change that.”
Siemens is leading the way in research and development of new technologies or processes that re-use this energy. For example, Mechanically Enhanced Biodrying (MEB) -- a new technology that is in the pilot testing stage -- is being developed as a result of industry requests for a versatile end product that could be used for fertilizer or fuel and that could be created with less energy than standard thermal drying technologies. It also addresses the challenges of biosolids composting when wood waste and other carbon-rich soil amendments are in short supply.
Research on a “green” solution for wastewater treatment is underway at Siemens Water Technologies’ global R&D center in Singapore. The new process, which extracts energy from municipal wastewater, will result in a 30% lower solids yield. Energy content in wastewater is harvested as biogas and converted to energy to create a plant that approaches energy independence. The lower solids volume produced will mean lower handling costs for owners and reduced transportation and management costs. Pilot testing is slated for October 2010, with commercial introduction scheduled for 2012.Further information about solutions for water treatment is available at:
The Siemens Industry Solutions Division (Erlangen, Germany) is one of the world's leading solution and service providers for industrial and infrastructure facilities comprising the business activities of Siemens VAI Metals Technologies, Water Technologies and Industrial Technologies. Activities include engineering and installation, operation and service for the entire life cycle. A wide-ranging portfolio of environmental solutions helps industrial companies to use energy, water and equipment efficiently, reduce emissions and comply with environmental guidelines. With around 31,000 employees worldwide (September 30), Siemens Industry Solutions posted sales of €6.8 billion in fiscal year 2009.Siemens AG
Did you know that the wrapping of Easter eggs benefits from specialty light sources?
13.04.2017 | Heraeus Noblelight GmbH
To e-, or not to e-, the question for the exotic 'Si-III' phase of silicon
05.04.2017 | Carnegie Institution for Science
More and more automobile companies are focusing on body parts made of carbon fiber reinforced plastics (CFRP). However, manufacturing and repair costs must be further reduced in order to make CFRP more economical in use. Together with the Volkswagen AG and five other partners in the project HolQueSt 3D, the Laser Zentrum Hannover e.V. (LZH) has developed laser processes for the automatic trimming, drilling and repair of three-dimensional components.
Automated manufacturing processes are the basis for ultimately establishing the series production of CFRP components. In the project HolQueSt 3D, the LZH has...
Reflecting the structure of composites found in nature and the ancient world, researchers at the University of Illinois at Urbana-Champaign have synthesized thin carbon nanotube (CNT) textiles that exhibit both high electrical conductivity and a level of toughness that is about fifty times higher than copper films, currently used in electronics.
"The structural robustness of thin metal films has significant importance for the reliable operation of smart skin and flexible electronics including...
The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.
Supermassive black holes form some of the most enigmatic phenomena in astrophysics. Their enormous energy output is supposed to be generated by the...
The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...
Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.
Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...
28.04.2017 | Event News
20.04.2017 | Event News
18.04.2017 | Event News
28.04.2017 | Medical Engineering
28.04.2017 | Earth Sciences
28.04.2017 | Life Sciences