energy efficiency Articles
-
Water Trends for 2024: Smart buildings and DHC networks
There are two trends that are set to play a key role in today’s race for energy efficiency and savings in 2024: smart buildings and district heating and cooling (DHC) networks. Smart buildings use advanced technology-based facilities and systems that can be holistically controlled and automated, increasing their energy efficiency, sustainability and safety. DHC networks are infrastructures ...
By Idrica
-
Pumps for energy-efficient water and wastewater treatment
Multiphase pumps are unique products with outstanding features compared to conventional centrifugal pumps. The approach consists of using the pumps not only for transport of liquids but also for partial gas supply and as dynamic mixer for gas enrichment. Therefore this novel pump conception barely has something in common with a standard pump. Even the mode of operation does no longer comply ...
-
Energy Efficiency for Urban Water and Wastewater Services
Electricity is a critical input for delivering municipal water and wastewater services. Electricity costs are usually between 5% - 30% of total operating costs among water and wastewater utilities (WWUs) worldwide. The share is usually higher in developing countries and can go up to 40% or more in some countries (e.g. India and Bangladesh). Such energy costs translate into high and often ...
-
Multiphase pumps for energy-efficient water and wastewater treatment
Multiphase pumps are unique products with outstanding features compared to conventional centrifugal pumps. The approach consists of using the pumps not only for transport of liquids but also for partial gas supply and as dynamic mixer for gas enrichment. Therefore this novel pump conception barely has something in common with a standard pump. Even the mode of operation does no longer ...
-
Energy-efficient mixers for the activated sludge process
Approximately 70% of the total energy demand of a water or wastewater treatment plant is consumed specifically for the mixing and aeration systems in the activated sludge process. In view of that it is becoming increasingly important to use systems that deal with resources in a responsible way. HYPERCLASSIC® -Mixer – the hyperboloid mixing technologyINVENT made significant contributions to the ...
-
Innovative energy efficiency technologies for Steyr wastewater treatment plant
The challenge: coping with increasing effluent in line with legislation rHV Steyr, a community environmental association serving the city of Steyr (austria) and several neighboring villages, enlarged and modernized its sewage treatment facility to cope with the ever increasing requirements of more stringent legislation in the face of rising effluent levels and thus, increasing amounts of ...
-
EDUR Multiphase Pumps for energy-efficient water and wastewater treatment
Multiphase pumps are unique products with outstanding features compared to conventional centrifugal pumps. The approach consists of using the pumps not only for transport of liquids but also for partial gas supply and as dynamic mixer for gas enrichment. Therefore this novel pump conception barely has something in common with a standard pump. Even the mode of operation does no longer comply ...
-
Considering energy efficiency in filtration of engineering nanoparticles
Engineering nanoparticles (ENPs) are an integral part of consumer products. Released to the atmosphere or disposed to sewage, ENPs quickly penetrate to surface and ground water sources. An absence of a dedicated ENP-retaining water treatment strategy imposes a potential health threat on drinking water consumers. The threat is met by gearing up an upgrade of treatment systems towards membrane ...
-
Mass flow and energy efficiency in a large water reclamation plant in Singapore
This paper presents the results of a measured data-based mass flow and balance study in UluPandan Water Reclamation Plant (WRP), the second largest municipal wastewater treatment plant in Singapore. The results are benchmarked against the Strass wastewater treatment plant in Austria, which has achieved energy self-efficiency. The gaps between the two plants have been identified and areas for ...
-
UASB-CFID system: energy efficient technology for sewage treatment and reuse
The UASB-CFID system was investigated through laboratory experiments as an alternative method of treatment to existing UASB based STPs for the treatment. Excellent quality effluent was obtained having BOD and TSS below the disposal standards of India. In conventional treatment methods, lot of energy is wasted and also they generate harmful byproducts. The estimated life cycle cost of UASB-CFID ...
-
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 ...
-
Electro-Fenton for control and removal of micropollutants – process optimization and energy efficiency
The removal of micropollutants is an important environmental and health issue. Electro-Fenton offers an electrochemical advanced treatment that is particularly effective for the breakdown of aromatic contaminants. Due to the wide variety of chemicals, it is preferable to analyze model contaminants, such as phenol, when optimizing and assessing the efficacy of a novel treatment process. In ...
-
Pulsed corona discharge for degradation of aqueous humic substances
The research into oxidation of aqueous humic substances (HS) with pulsed corona discharge (PCD) was undertaken to estimate the energy efficiency of the treatment. The PCD system consists of a voltage pulse generator and reactor, in which the gas-phase discharge generating OH radicals and ozone treats the water showered between electrodes. The influence of HS initial concentration, pulse ...
-
Analysis of energy efficiency and energy consumption costs: a case study for regional wastewater treatment plant in Malaysia
The objective of this study is to analyze the possibilities of increasing energy efficiency in the central region wastewater treatment plant by focusing on two aspects: biogas production and prediction of energy production. The analysis is based on one of the biggest central region wastewater treatment plants in Malaysia. After studying the energy efficiency, which consists of optimization of ...
-
Energy efficiency in the European water industry: learning from best practices
Energy costs and climate change challenges the water industry to improve their energy efficiency. The number of examples of energy measures in water production and treatment is growing rapidly. In this paper, best practices of energy efficiency from the European water industry are presented with the objective of learning from each other. The best practices are collected within the framework of ...
-
Extended statistical entropy analysis (eSEA) for improving the evaluation of Austrian wastewater treatment plants
Extended statistical entropy analysis (eSEA) is used to evaluate the nitrogen (N) budgets of 13 Austrian wastewater treatment plants (WWTPs). The eSEA results are then compared to the WWTPs specific N-removal rates. Among the five WWTPs that achieve a removal rate of 75% the eSEA detects significant differences in the N-performance. The main reason for this is that eSEA considers all ...
-
Management tool to assess, benchmark and support energy efficiency actions in more than 800 WWTP
Águas de Portugal (AdP) group was responsible, during 2014, for the treatment of 547 million cubic meters of wastewater, operating more than 1,000 wastewater treatment plants (WWTPs) in Portugal. Electrical energy (EE) consumption was evaluated in 219 gigawatt hours, representing the largest part of OPEX in these plants. Improving energy efficiency is an ongoing challenge for AdP, being a ...
-
Transparent Energy Balance by Online Energy Analysis at Wastewater Treatment Plants
Energy efficiency studies are the basis for modernisation projects at wastewater treatment plants. A major shortcoming is that these studies do not provide any information on how the energy balance actually changes after optimisations have been carried out. At the Asselbrunn sewage treatment plant of the Mittlere Mümling Wastewater Association, an analysis tool was used that enables the ...
-
How Much Energy does a Pool Pump Use
A swimming pool is an excellent add-on feature to the house. However, swimming pools require regular maintenance to keep water clean and healthy. The subsequent costs of pool maintenance can be high. And of all the pool equipment, the pool pump is the one that needs to keep running to ensure that the pool water circulates and removes dirt and debris. Therefore, the pool pump never takes a day off ...
-
Smart metering use cases to increase water and energy efficiency in water supply systems
Efficient water and energy use in water distribution systems is being limited by the lack of sufficient data about water and related energy consumption. Therefore, it is crucial to provide updated and continuous feedback information to water users. This paper describes relevant use cases to improve efficient water use and related energy consumption by water utilities and consumers through the ...
Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you