aerator Articles
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Waterschap Brabantse Delta (NL) - Case Study
For two sewage treatment plants of Dutch water board “Brabantse Delta”, Landustrie supplies 3 no. brush aerators, also called aeration rotors. Unique here is the design of the aeration units. Normally the brush aerators are fixed mounted between the side walls of an aeration ...
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Performance evaluation of wastewater treatment using horizontal subsurface flow constructed wetlands optimized by micro-aeration and substrate selection
The effects of micro-aeration and substrate selection on domestic sewage treatment performance were explored using three pairs (with or without micro-aeration) of horizontal subsurface flow (HSSF) constructed wetlands (CWs) filled with zeolite, ceramsite or quartz granules. The individual and combined effects of micro-aeration and substrate selection on the purification performance of the ...
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Case study - Mazzei airjection aeration system installed in Alabama Field Erected WWTP
Activated Sludge Treatment in a Municipal Sewage Treatment Plant. Huntsville, AL The Problem: A design/build contractor needed a quiet, efficient aeration system for a 250,000 GPD field erected WWTP. This plant was to be located adjacent to a school. A restriction on ambient noise at the location of the proposed WWTP required a quiet aeration process. The Solution: The project engineer selected ...
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Case Study: Biolan Wastewater Treatment Facility
The initial situation Biolan decided to build a new wastewater treatment plant in 2004. The treatment plant should have sufficient capacity, also taking the future into account. The requirements were to achieve a good purification result as well as removing odours from the region. The plant was designed by the company Jaakko Pöyry Oyj. The size of the main process basin turned out to be ...
By W-Rix Ltd
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Flow field prediction in full-scale Carrousel oxidation ditch by using computational fluid dynamics
In order to optimize the flow field in a full-scale Carrousel oxidation ditch with many sets of disc aerators operating simultaneously, an experimentally validated numerical tool, based on computational fluid dynamics (CFD), was proposed. A full-scale, closed-loop bioreactor (Carrousel oxidation ditch) in Ping Dingshan Sewage Treatment Plant in Ping Dingshan City, a medium-sized city in Henan ...
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Bacterial composition and nutrient removal with a novel PIA-A2/O sewage treatment
A novel post intermittent aeration anaerobic–anoxic–oxic (PIA-A2/O) process was developed to integrate shortcut nitrification–denitrification with denitrifying phosphorus (P) removal for domestic sewage treatment. With the transformation in configuration and phased start-up strategy, the nitritation rate and the ratio of denitrifying phosphorus accumulating organisms to phosphorus ...
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Project - WWTP DC Water Blue Plains, USA
Plant: DC WATER Blue Plains WWTP, Filtrate Treatment Facility, US Blue Plains Advanced Wastewater Treatment Plant is the largest plant in the world Engineer: World Water Works, Oklahoma City, OK, US Type of plant: Municipal Wastewater Treatment Plant Start-up: 2017 Application: Mixing and aeration in an activated sludge tank Scope of supply: Engineering & Design 24 INVENT ...
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Decentralized Sewage Manila, Philippines - Case Study
Situation A large urban water authority in the Philippines wanted to reduce power consumption and treat sewage for environmentally friendly discharge to nearby water ways. Solution Four BioGill bioreactors were retrofitted to the existing decentralized Sewage Treatment Plant (STP). Design The modified process saw the aeration tanks removed, retaining the balance tank and the clarifiers (which ...
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Impact of carbon to nitrogen ratio and aeration regime on mainstream deammonification
While deammonification of high-strength wastewater in the sludge line of sewage treatment plants has become well established, the potential cost savings spur the development of this technology for mainstream applications. This study aimed at identifying the effect of aeration and organic carbon on the deammonification process. Two 10 L sequencing bath reactors with different aeration ...
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Performance of UASB based sewage treatment plant in India: polishing by diffusers an alternative
In India, recently, upflow anaerobic sludge blanket (UASB) based sewage treatment plants (STPs) have come up in a big way. Sequence adopted: screens- grit chambers- UASB reactors followed by one-day detention ponds (DP). Performance of DPs located at five STPs (27–70 ML/d) was evaluated over a period of one year from July 2004 to July 2005. The installation of these non-algal ponds reduced land ...
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Research of novel process route and scale-up based on oil-water separation flotation column
A novel process ‘coalescence-airflotation-carrier preferential adsorption’ utilising an oil-water separation flotation column with a unique structure was used in the oil-water separation field. The oil-water separation flotation column contains the cyclonic separation and airflotation separation which has advantages in oily sewage treatment, especially in polymer-flooding-drive oily sewage ...
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LEVAPOR carrier in small sewage treatment plants
The application of LEVAPOR carrier results in advantages also in small sewage treatment plants for 4 to 20 inhabitants. In such plants subsequent immobilisation of biomass resulted in Efficient and stable nitrification even at 10-13°C, Doubling of removal rates Lower excess sludge production and Lower outlet COD ( 45 to 65 mg/L at 1,4-1,8 kgCOD/m³x day) First tests using LEVAPOR had ...
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Viva HYPERCLASSIC® ! Efficient Wastewater Treatment in Mexico
Thanks to the mixing and aeration technology from INVENT a state-of-the-art wastewater treatment plant is now able to transform wastewater from a vacation resort into valuable hydration for an evergreen golf paradise. There is plenty to discover in San Miguel de Allende, Mexico. Its fortified baroque downtown with featuring a number of striking church buildings has been a UNESCO World Heritage ...
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Combination of up-flow anaerobic sludge blanket reactor and a novel cascade sponge reactor for sewage treatment
Performance of the combined process of up-flow anaerobic sludge blanket (UASB) reactor and cascade sponge reactor (CSR) for sewage treatment was studied. UASB-CSR system was operated at HRTs of 24 h, 16 h, and 8 h at an average wastewater temperature of 29°C. It comprises of the most efficient combined process not only for CODT (98.9%), BODT (98.5%), TSS (99.3%), total nitrogen (89.1%), total ...
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Specific energy consumption of membrane bioreactor (MBR) for sewage treatment
This paper provides an overview of current electric energy consumption of full-scale municipal MBR installations based on literature review and case studies. Energy requirements of several MBRs were linked to operational parameters and reactor performance. Total and specific energy consumption data were analysed on a long-term basis with special attention given to treated flow, design capacity, ...
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Evaluation of polishing of the effluent from UASB reactor by diffusers
Effluents from bench scale 56 L upflow anaerobic sludge blanket (UASB) reactor and four UASB based sewage treatment plants (STPs) of capacities ranging from 27 ML/d to 70 ML/d were aerated in batch as well as in continuous mode of operation. The process was monitored by measuring temporal trend in Oxidation Reduction Potential (ORP), dissolved oxygen (DO), chemical oxygen demand (COD) and ...
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Quality of inputs is important for product performance
Water scarcity and pollution are two issues of great concern in our country today and, with our ever-increasing pop-ulation, the problem is getting worse. The need of the hour is the on-site sewage treatment for re-use. We talk about procurement and related issues to Shahaveer Jamshedji, Managing Partner, Biowater Treatments Systems LLP. Range of products Biowater Treatment Systems LLP is into ...
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Project WWTP Sint Maarten - Case Study
Sewage Treatment Plant "Illidge Road" located at Sint Maarten, Netherlands Antilles, is being renewed. The exisiting plant is expanded in order to accommodate the growing number of households. The old plant was built in 1992 with a capacity for 3,500 resident equivalents. After the expansion, the plant will have a capacity of 30,000 resident equivalents, meaning that it will be able to serve ...
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Shanghai Jinshan Fengjing Wastewater Treatment Center - Case Study
Project Content: Shanghai Jinshan Fengjing Water Purification Plant Application AVS Precision Aeration Flow Control System, Equipment Management System, Laboratory Management System, Central Dispatching Management System, Pipe Network Operation and Maintenance Management System, ProSee Process Simulation Modeling System, iPad Mobile Application And other software products, to achieve intelligent ...
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Marsh Industries selects Warden Biomedia for Uni:Gem 75pe With Polylok 525 filtration - Case Study
Overstone Country Park is situated in 160 acres of beautiful Northamptonshire country-side. The park has the River Nene on its borders. Tourists, campers and locals use the extensive natural facilities for fishing, golfing and recreational pursuits. A development of private houses for seventy five people on the private Overstone Park had been threatened with fines and possible prosecution by the ...
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