aerator Articles
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Effects of the combination of aeration and biofilm technology on transformation of nitrogen in black-odor river
Excess nitrogen in urban river networks leading to eutrophication has become one of the most urgent environmental problems. Combinations of different aeration and biofilm techniques was designed to remove nitrogen from rivers. In laboratory water tank simulation experiments, we assessed the removal efficiency of nitrogen in both the overlying water and sediments by using the combination of ...
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Elverom R.A. - Municipal RBC Retrofit
Elverom R.A. - a Municipal RBC Retrofit The Challenge: Nordre Land Kommune - Elverom is a municipality located in Norway approsimately 14 miles North of Oslo. Elverom had two Rotating Biological Contactors (RBC's) which did not work properly, were noisy and had odor issues. The required maintenance for the RBC's had become overwhelming. Elverom wanted to change over to a biofilm technology ...
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Municipal Elverom, Norway case study
Project Name: Elverom RA Location: Nordre Land Kommune, Norway Type of Plant: Municipality - RBC Retrofit Technology Used: Biowater CMFF Biofilm system Biomedia Used: Biowater BWT-X Operational Since: July 2011 The Challenge Nordre Land Kommune, Elverom, is a small municipality located in Norway approximately H miles North of Oslo, Elverom had two Rotating Biological Contactors (RBC'sl which did ...
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A new device to select carriers for biomass immobilization and application in an aerobic/anaerobic fixed-bed sequencing batch biofilm reactor for nitrogen removal
This study proposes a new approach to selecting a biofilm carrier for immobilization using dissolved oxygen (DO) microsensors to measure the thickness of aerobic and anaerobic layers in biofilm. The biofilm carriers tested were polyurethane foam, mineral coal (MC), basaltic gravel, and low-density polyethylene. Development of layers in the biofilm carrier surface was evaluated using a flow ...
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Comparison between hybrid moving bed biofilm reactor and activated sludge system: a pilot plant experiment
The paper presents the comparison between the traditional activated sludge system (AS) and a hybrid moving bed biofilm reactor (HMBBR). In particular, an experimental campaign has been carried out at the WWTP in Palermo (Italy), on a pilot plant consisting of two pre-anoxic schemes. The aerated tank of the HMBBR line was filled with suspended carriers (AnoxKaldnes™ K1), with a 30% filling ratio. ...
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Demonstration of innovative MABR low-energy nutrient removal technology at Chicago MWRD
An innovative MABR (membrane-aerated biofilm reactor) membrane technology was demonstrated at the O'Brien Water Reclamation Plant (OWRP) of the Metropolitan Water Reclamation District of Greater Chicago (Chicago MWRD). The demonstration unit was equipped with one full-scale membrane cassette. The technology was evaluated for its potential to improve performance for total suspended solids ...
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Results of trials to remove BOD/COD from effluent arising from cellulosic fibre production case study
A man-made natural fibre producer had produced a new high strength, fibrillated cellulosic fibre derived from wood pulp destined for use in garment manufacture. As a result of the IPC authorisation attached to the production of this product it became necessary to establish the biodegradability of various effluent streams leaving the production plant. In order to evaluate the feasibility of ...
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Results of trials to remove BOD/COD from effluent arising from cellulosic fibre production case study
A man-made natural fibre producer had produced a new high strength, fibrillated cellulosic fibre derived from wood pulp destined for use in garment manufacture. As a result of the IPC authorisation attached to the production of this product it became necessary to establish the biodegradability of various effluent streams leaving the production plant. In order to evaluate the feasibility of ...
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Infographic: The Aspiral™ Decentralized Wastewater Treatment Revolution
With its low energy requirements, Fluence's Smart Packaged wastewater treatment solution can bring high-quality effluent to even the most remote areas Fluence's mission is to bring sustainable, decentralized water treatment anywhere in the world, and our new Aspiral™ solution has removed a range of obstacles that have long stood in the way of small- and medium-scale wastewater treatment ...
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The Aspiral™ Decentralized Wastewater Treatment Revolution
With its low energy requirements, Fluence’s Smart Packaged wastewater treatment solution can bring high-quality effluent to even the most remote areas Fluence’s mission is to bring sustainable, decentralized water treatment anywhere in the world, and our new Aspiral™ solution has removed a range of obstacles that have long stood in the way of small- and medium-scale wastewater ...
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Calibration and verification of models of organic carbon removal kinetics in Aerated Submerged Fixed-Bed Biofilm Reactors (ASFBBR): a case study of wastewater from an oil-refinery
The article presents a case-study on the calibration and verification of mathematical models of organic carbon removal kinetics in biofilm. The chosen Harremöes and Wanner & Reichert models were calibrated with a set of model parameters obtained both during dedicated studies conducted at pilot- and lab-scales for petrochemical wastewater conditions and from the literature. Next, the models were ...
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Moving Away From Dams for Water Storage
With California facing more drought, it’s important to consider more efficient options like aquifer recharge California, with its huge water demand, deep and frequent droughts, and a willingness to pioneer, has often been at the forefront of water management. In California’s tradition of ambitious water projects, the bold Proposition 1 has set aside $2.7 billion for water storage ...
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4 Misconceptions of MBBR Biofilm Reactor for Wastewater Treatment
Common Misconceptions of MBBR Biofilm Reactor Technology for Wastewater Treatment When looking for information about a product or service you’re interested in, it can occasionally be difficult to find the answers to your specific questions. Sometimes you can’t really find anything and you end up making inferences based on what you did find. Sometimes, those inferences can be ...
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Planning Wastewater Treatment for Low- to Middle-Income Countries
As countries strive to meet sustainable development goals, Fluence solutions can remove obstacles In order to meet the United Nations’ Sustainable Development Goals, countries need to build wastewater infrastructure, however low- to middle-income countries face many challenges. Portions of their populations are still not connected to sewers, and some sewage that is collected is still being ...
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UK Wastewater Infrastructure Isn’t Working
While sewage pollution is at a crisis point in the UK, new treatment technologies can turn that around Pollution from sewage in the United Kingdom has become extreme and is made worse by climate change and the sheer scale of the problem. Discharges are permitted into U.K. water bodies when stormwater threatens to overwhelm water systems. Without the releases, water systems could overflow and ...
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