wastewater treatment energy saving Articles

  • Understanding energy saving and CO2 reduction in wastewater treatment plants

    Wastewater Treatment Plants (WWTPs) have to deal with the issue of energy saving and/or CO2 reduction. Aeration, sludge return, chemical dosing, sludge reduction, sludge digestion, etc. could indeed have some function on this issue. On the other hand, controlled processes of COD and nutrient conversions could also be of benefit to the issue. With this paper, ...


    By Inderscience Publishers

  • Energy saving on wastewater treatment plants through improved online control: case study wastewater treatment plant Antwerp-South

    This work provides a case study on how activated sludge modelling and computational fluid dynamics (CFD) can help to optimize the energy consumption of a treatment plant that is already equipped with an advanced control based on online nutrient measurements. Currently, aeration basins on wastewater treatment plant Antwerp-South are operated sequentially while flow direction and point of inflow ...


    By IWA Publishing

  • Efficient aeration system boosts energy savings

    A new efficient aeration system saves the Ontario, Ore., wastewater treatment facility $47,000 annually in energy costs. Besides giving this community a financial boost, the new system netted additional equipment cost savings by cutting aeration horsepower by more than half at the plant. The environmentally conscious city, located in the Oregon/Idaho border area, is meeting all of its effluent ...

  • Evaluation of Energy Conservation Measures for Wastewater Treatment Facilities

    This technical document will assist municipal utility owners and operators in finding information on cost-effective energy management and energy conservation measurers (ECMs) and technologies for reducing total energy usage in their wastewater treatment facilities.  The document presents technical and cost information about energy management and cost-effective energy conservation measurers ...

  • Wastewater Treatment: Out with Conventional, in with Sustainable Wastewater Treatment

    The question?Water is one of the world’s most vital resources. It is critical to the survival of every living creature on the planet. The average human can only go a few days without consuming water in some capacity. Health experts stress drinking fluids throughout the day to remain properly hydrated. However, in some parts of the world, water is hard to obtain. Either there are no sources ...

  • How to tap the energy savings in greywater

    Many operators of offices, hospitals, hotels, large condos, and other buildings are aware of the need to save money and reduce their environmental impact, through better water management. The result has been the growth of ways to reduce water consumption, ranging from low-flow show-crheads to landscaping that requires minimal watering. Building operators are also aware of a similar need to ...


    By DDI Heat Exchangers Inc.

  • Benchmarking energy consumption in municipal wastewater treatment plants in Japan

    Reduction of greenhouse gas (GHG) emissions is one of the most important tasks facing municipal WWTPs. Electric power consumption typically accounts for about 90% of the total energy consumption. This study presents a benchmarking analysis of electric power consumption. The specific power consumption (SPC) ranged from 0.44 to 2.07 kWh/m3 for oxidation ditch plants and from 0.30 to 1.89 kWh/m3 for ...


    By IWA Publishing

  • What is biological wastewater treatment?

    Biological wastewater treatment harnesses the action of bacteria and other microorganisms to clean water Biological wastewater treatment is a process that seems simple on the surface since it uses natural processes to help with the decomposition of organic substances, but in fact, it’s a complex, not completely understood process at the intersection of biology and ...


    By Fluence Corporation

  • Energy savings, Mixing, & Odor control- Industrial & municipal wastewater - Case study

    Overview: This wastewater treatment plant (WWTP) consists of two separate treatment avenues for residential and industrial wastewater flows. The industrial waste stream varies seasonally, and comes from food processing wastes from poultry processing, baby food processing, and winery waste. Average influent ranges are 0.2 -0.4 MGD for flow, 600-2,300 mg/L BOD, and 87-148 mg/L ammonia. Following ...


    By Medora Corporation

  • Crown point wastewater treatment plant case study

    Project Summary Due to capacity issues, the City of Crown Point was forced to either start planning for expensive capital expansions of the facility or to investigate alternative technologies that would increase capacity. In 2007 the City chose In-Pipe Technology to improve the treatment capacity of the plant without capital improvements. In-Pipe's goal is to improve the efficiency of the ...

  • Triton aerator/mixer saves energy & operational costs & reduces carbon footprint

    Municipal and industrial users tackle many wastewater treatment challenges at their facilities including meeting more stringent permit limits with limited or declining resources. The ideal solution for today’s professional is finding an innovative technology that offers a cost-effective, sustainable treatment solution that exemplifies environmental stewardship in the community. Many ...

  • Huntington wastewater treatment plant case study

    Project Summary The Huntington wastewater treatment plant (WWTP) on Long Island, New York is challenged with improving its nitrogen removal efficiency in order to maintain compliance with ever-tightening restrictions on discharge loads. In order to meet this challenge the town initiated a collection system bioaugmentation program with the primary objectives of enhancing the nitrogen removal ...

  • Why is mining wastewater treatment necessary?

    During Industrial processes and mining, there are certain discharges of environmental pollution. This outcome is the growing concerns about the living atmosphere. As per the increasing concerns of contamination, there should be a lot of efforts and implementation to save the environment from its hazardous effects. ...

  • Wastewater Treatment in Turbo Mode

    Sulzer turbocompressors type ABS HST are successful in wastewater treatment. Today, 2000 units are installed around the world—for example, in municipal plants like in the city of Sögel, Germany. Here, the turbocompressors not only reduced the operating costs but also helped the plant to cope with load fluctuations. The secret behind this success is an advanced design with proven ...


    By Sulzer Ltd.

  • Treatment of wastewater from anaerobic digestion

    The Client The customer is power plant which produces biogas from biomass and sewage farm, through anaerobic digestion and thermal recovery, located nearby Munich in Germany. The Client’s needs Biogas is produced by the fermentation of organic substances of animal and vegetal origin in absence of oxygen (anaerobic process). This process produces a ...


    By EVALED-Evaporator

  • Wineries wastewater treatment by constructed wetlands: a review

    The application of wetland systems for the treatment of wineries wastewater started in the early 1990s in the USA followed a few years later by France, Italy, Germany and Spain. Various studies demonstrated the efficiency of constructed wetlands (CWs) as a low cost, low maintenance and energy-saving technology for the treatment of wineries wastewater. Several of these experiences have also shown ...


    By IWA Publishing

  • Energy efficient aeration of wastewaters from the pulp and paper industry

    More than 50% of the electrical power needed to treat pulp and paper industry effluents is used for aeration in biological treatment stages. A large share of the oxygen that passes through the wastewater is not consumed and will be found in the off-gas. Energy can be saved by aerating under conditions where the oxygen transfer is most efficient, for example at low concentrations of dissolved ...


    By IWA Publishing

  • Meeting compliance with process aerators - Equipment improves process, saves energy in nation’s oldest city

    St Augustine, Fla., founded by Europeans in 1565, is the nation’s oldest city. The city is a perfect blend of aging gracefully while staying at the forefront of environmental protection. When this pristine community started experiencing problems with its wastewater treatment system, they found a solution using Aeration Industries’ Aire-O2 Triton process aerators and mixers. The ...

  • A primer on energy efficiency for municipal water and wastewater utilities

    This primer is concerned with energy use and efficiency of network-based water supply and wastewater treatment in urban areas. It focuses on the supply side of the municipal water cycle, including the extraction, treatment, and distribution of water, and collection and treatment of wastewater-activities which are directly managed by Water and Wastewater Utilities (WWUs). The main challenges to ...


    By IWA Publishing

  • Car Wash Wastewater Treatment - Case Study

    Wastewater Treatment Plant, Robina Car Wash, Qld Case Study: Car Wash WWTP Client: Robina Car Wash Year: 2012 Capacity: 800 l/h BACKGROUND Car washes use very little potable (mains drinking) water by using fine nozzles and high pressure hoses. Linked ...


    By Hydrasyst

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