energy production Articles
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Alternatives for energy production in aerobic wastewater treatment facilities
Using technologies such as anaerobic digestion for energy generation from wastewater demands a change in infrastructure that several treatment works are not prepared to immediately implement. This works explores the use of energy production technologies to increase the sustainability of conventional aerobic wastewater treatment plants. The first option considered sludge (a by-product from ...
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Energy performance indicators of wastewater treatment: a field study with 17 Portuguese plants
The energy costs usually represent the second largest part of the running costs of a wastewater treatment plant (WWTP). It is therefore crucial to increase the energy efficiency of these infrastructures and to implement energy management systems, where quantitative performance metrics, such as performance indicators (PIs), play a key role. This paper presents energy PIs which cover the unit ...
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Industrial wastewater treatment with a bioelectrochemical process: assessment of depuration efficiency and energy production
Development of renewable energy sources, efficient industrial processes, energy/chemicals recovery from wastes are research issues that are quite contemporary. Bioelectrochemical processes represent an eco-innovative technology for energy and resources recovery from both domestic and industrial wastewaters. The current study was conducted to: (i) assess bioelectrochemical treatability of ...
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Water Risks on the Rise for Three Global Energy Production Hot Spots
Energy runs on water. In fact, among industries, the global energy sector is the world’s largest water user. Almost all forms of energy production and power generation depend upon water for their operations. This tension causes stress in both the energy and water worlds. Three-quarters of energy respondents to a 2012 CDP Global Water Survey confirmed that they experienced water-related ...
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Thermophilic digestion revisited
On the 28th of October Colsen presented their practical experience in the field of anaerobic sludge digestion at the Ghent symposium Valorization of organic resources from wastewater. At the symposium various speakers presented its view or experience on the topic of valorization of organic resources from wastewater. Numerous examples are being developed by companies and universities and several ...
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Enhancing biodegradation and energy generation via roughened surface graphite electrode in microbial desalination cell
The microbial desalination cell (MDC) is known as a newly developed technology for water and wastewater treatment. In this study, desalination rate, organic matter removal and energy production in the reactors with and without desalination function were compared. Herein, a new design of plain graphite called roughened surface graphite (RSG) was used as the anode electrode in both microbial ...
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Towards sustainable sanitation – the HAMBURG WATER Cycle in the settlement Jenfelder Au
One of the largest urban development projects at present in Hamburg is the conversion of former military barracks into a new residential area for about 630 households, called Jenfelder Au. The urban design concept for this 35 ha area follows a high quality approach to develop a carbon-neutral, attractive neighbourhood for approx. 2,000 inhabitants abundant with green space and urban water. ...
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Project - SOCORRO - Seeking Out Corrosion, before it is too late
Project Overview An often underestimated threat to our economy is steel corrosion, in any kind of industry where water meets steel: the maritime sector, ports, water purification plants, energy production, offshore renewable energy production. The costs pertaining to corrosion are immense: a DNV-GL report sets all-round corrosion costs at more than 500 billion EUR for the European region alone, ...
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Recycling of phosphorus in urban Sweden: a historical overview to guide a strategy for the future
Sustainable sanitation and food security have been issues in all human history although named differently. This study describes the evolution of sanitation arrangements in the Swedish town Linköping for the period 1870–2000. The flow of phosphorus from food consumption is estimated for the period and its output is divided into gainful reuse in agriculture and energy production and (harmful) ...
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Reducing Industrial Water Use
Water reuse is just one means of making industrial use of fresh water more sustainable Around the world, the agricultural and industrial sectors are the two largest water users, accounting for nearly 90% of direct water withdrawals. Agricultural water withdrawal accounts for nearly 72%, industrial (including energy production) accounts for about 16%, and municipal water withdrawals make up the ...
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Sludge Production
Specific sludge production in wastewater treatment varies widely from 35 to 85 g dry solids per population equivalent per day (gTS PE-1 d-1). The production of primary sludge is related to the amount of settleable solids in raw wastewater whose solids content is typically of 50-60 gTSS PE-1 d-1 or 110-170 gTSS/m3 of treated wastewater (Tchobanoglous et al., 2003). Organic matter is oxidised by ...
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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 ...
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A realistic dynamic blower energy consumption model for wastewater applications
At wastewater treatment plants (WWTPs) aeration is the largest energy consumer. This high energy consumption requires an accurate assessment in view of plant optimization. Despite the ever increasing detail in process models, models for energy production still lack detail to enable a global optimization of WWTPs. A new dynamic model for a more accurate prediction of aeration energy costs in ...
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Black box description of anaerobic growth on acetic acid.
For environmental applications, the chemotrophic microbial growth systems are of mayor importance. One of the key parameters in such processes is the yield of biomass on the electron donor substrate. In practice, an estimate of the expected biomass yield in a process is frequently required, but considering the wide variety of microbial population, this poses a difficult problem. Analysis of ...
By ORBIT e.V.
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On the design and operation of primary settling tanks in state of the art wastewater treatment and water resources recovery
In state of the art wastewater treatment, primary settling tanks (PSTs) are considered as an integral part of the biological wastewater and sludge treatment process, as well as of the biogas and electric energy production. Consequently they strongly influence the efficiency of the entire wastewater treatment plant. However, in the last decades the inner physical processes of PSTs, largely ...
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Cost minimization in a full-scale conventional wastewater treatment plant: associated costs of biological energy consumption versus sludge production
Energy consumption and sludge production minimization represent rising challenges for wastewater treatment plants (WWTPs). The goal of this study is to investigate how energy is consumed throughout the whole plant and how operating conditions affect this energy demand. A WWTP based on the activated sludge process was selected as a case study. Simulations were performed using a pre-compiled ...
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Efb Juice/Ffb Juice/Pome Treatment Plant (Industrial Process Waste Water) – Malaysia
Implementing state-of-art wastewater treatment methodologies for Palm oil Waste Waster in Malaysia and bring that to Discharge Standard Level. CLIENT’S OBJECTIVE Wastewater Treatment of 350 MT EFB Juice/Day having characteristics 6% Oil, 15 – 20% Fibers and 2 – 3% Solids Consistency and Energy Production in the form of methane rich Biogas. PROPOSED SOLUTION: Three-phase ...
By WOG Group
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The role of innovative technologies in achieving energy-neutral wastewater treatment
A new flowsheet is proposed to achieve energy-neutral wastewater treatment (even better, electricity-neutral) while removing nitrogen using the proven nitrification-denitrification metabolic pathway. It is compatible with solid-liquid separation by conventional clarification or membrane filtration. The new flowsheet is based on a hybrid membrane-aerated biofilm reactor process which uses ...
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Using wastewater and high-rate algal ponds for nutrient removal and the production of bioenergy and biofuels
This paper projects a positive outcome for large-scale algal biofuel and energy production when wastewater treatment is the primary goal. Such a view arises partly from a recent change in emphasis in wastewater treatment technology, from simply oxidising the organic matter in the waste (i.e. removing the biological oxygen demand) to removing the nutrients – specifically nitrogen and ...
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Optimization of municipal sludge and grease co-digestion using disintegration technologies
Many drivers tend to foster the development of renewable energy production in wastewater treatment plants as many expectations rely upon energy recovery from sewage sludge, for example through biogas use. This paper is focused on the assessment of grease waste (GW) as an adequate substrate for co-digestion with municipal sludge, as it has a methane potential of 479–710 LCH4/kg VS, as well as the ...
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