sludge processing Articles
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Sludge reduction and performance analysis of a modified sludge reduction process
A modified sludge process reduction activated sludge (SPRAS) technology was developed by inserting a sludge process reduction (SPR) module, composed of an aeration tank and a settler, before the activated sludge system was proposed in this study. Compared with the anaerobic/anoxic/aerobic (AAO) process, the SPRAS resulted in a remarkable decrease in sludge production by 76.6%; sludge ...
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Tomato Processor Pilot Bioreactor
98% Average Reduction in BOD & TSS A tomato processing facility was required by the city to reduce BOD from 4,000 ppm to 200 ppm. Integrated Engineers proposed a small scale Bioreactor to prove the effectiveness of the activated sludge process on the customer’s wastewater as well as establishing the parameters for a full scale system design. The trailer mounted bioreactor utilizes an ...
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In-situ measurement of ammonium and nitrate in the activated sludge process
Abstract: A new in-situ probe is presented for the continuous measurement of ammonium and nitrate in wastewater. It requires no sample preparation and is installed directly in the process liquid. This new low- cost probe significantly reduces investment and operating costs and requires minimum maintenance. The paper describes the sensor principle and test results from three different probe ...
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Optimization of A2O BNR processes using ASM and EAWAG Bio-P models: model formulation
This study is an extended and comprehensive analysis to accomplish optimal sizing for a biological nutrient removal (BNR) system with an A2O BNR activated sludge process using activated sludge models (ASM) kinetic models. A highly nonlinear activated sludge model combined with the EAWAG Bio-P module is formulated and optimized using a generalized reduced gradient solver. Primary and final ...
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7 Disadvantages of Using an Activated Sludge Process for Your Municipality or Company
7 Disadvantages of the Activated Sludge Process for Municipalities and Organization Biological treatment processes are an important component in many wastewater treatment systems. They are one of the most efficient and effective ways of reducing organic material in wastewater. There are quite a few of them that have been researched and used over several decades. However, one of the most widely ...
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7 Disadvantages of Implementing an Activated Sludge Process For Your Municipality or Company
Biological treatment processes are an important component in many wastewater treatment systems. They are one of the most efficient and effective ways of reducing organic material in wastewater. There are quite a few of them that have been researched and used over several decades. However, one of the most widely used conventional biological treatment process is the activated sludge process (ASP). ...
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Frequently Asked Questions and Troubleshooting in Activated Sludge Process (Part1)
Q: In the ordinary activated sludge process, sludge expansion will occur during the treatment of municipal sewage, with SVI>400, so it is planned to install an anaerobic selector at the front part of the aeration tank. Since there is little experience in this area, I want to find out if there is anything wrong with setting the selector larger? Now we set the anaerobic selector to account for ...
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Frequently Asked Questions and Troubleshooting in Activated Sludge Process (Part 2)
Q: I ran into a problem. In the past few days, we found that the sludge was floating in lumps in the secondary sedimentation tank, which was very loose. It may be due to swelling of the sludge, which is not serious. But I am very surprised that the MLVSS of the biochemical tank is about 2000mg/l, the sludge age is relatively short, the sludge is not aging, and it is within the control range. The ...
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Aerobic Wastewater Treatment Options
Aerobic wastewater treatment ranges from the simple to revolutionary technologies like MABR, which saves energy and is ideal for decentralized treatment Aerobic wastewater treatment takes many forms, but fundamentally it’s a biological process widely used in the treatment of both domestic and industrial wastewater, particularly waste streams high in organic or biodegradable content. ...
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Case study: Municipal WWTP
OverviewThe municipal WWTP at Monclova, Mexico had to increase its capacity by a factor of 1.5 and improve nitrification capacity, for 100% reuse by industry. RequirementsThe city of Monclova operates a modern wastewater treatment plant which receives urban and industrial wastewater. A retrofit for an increase of 50% in capacity was required, as well as improvement in effluent ammonia. The ...
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WWTP Monclova, Mexico A Case Study
Case Study: Municipal WWTPClient: Monclova – MexicoStart Up: 2005Capacity: 58,300 m3/d Overview The municipal WWTP at Monclova, Mexico had to increase its capacity by a factor of 1.5 and improve nitrification capacity, for 100% reuse by industry. Requirements The city of Monclova operates a modern wastewater treatment plant which receives urban and industrial wastewater. A retrofit for an ...
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What Is the Sludge Treatment Process?
Raw, untreated sewage is a serious hazard to the environment as well as to the nearby population. However, through proper treatment, wastewater facilities can keep up with demand, reduce pathogenic risks, and reintroduce clean water back into the environment. Learn more about the role of sludge treatment in improving wastewater processing. Sewage Sludge When municipal wastewater treatment ...
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Removal of ZnO nanoparticles in simulated wastewater treatment processes and its effects on COD and NH4+-N reduction
For many engineered nanoparticles, the primary pathway of release into the environment is via sewage and industrial wastewater discharges. In this work, the removal of uncoated ZnO nanoparticles (ZnO NPs) during simulated wastewater treatment processes and its impact on treatment performance were examined. Simulated primary clarification removed the majority (about 70%) of the dosed ZnO ...
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Simulation of wastewater treatment plant within integrated urban wastewater models
In the federal state of Hesse in Germany the application of an integrated software modelling framework is becoming part of the planning process to attain legal approval for the operation of combined sewer systems. The software allows for parallel simulation of flow and water quality routing in the sewer system and in receiving rivers. It combines existing pollution load model approaches with a ...
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Pros & Cons - Moving Bed Bioreactor Technology
A moving bed bioreactor is a biological wastewater treatment process. In many instances, wastewater is full of organic matter that can be difficult to filter out by chemical or physical means. Therefore, one of the best methods of dealing with organic matter is treating it with a biological process. The basic idea behind the biological water treatment processes is using micro-organisms to break ...
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Dispose of sewage sludge
Sewage sludge treatment describes the processes used to manage and dispose of sewage sludge produced during sewage treatment. Sludge treatment is focused on reducing sludge weight and volume to reduce transportation and disposal costs, and on reducing potential health risks of disposal options. Water removal is the primary means of weight and volume reduction, while pathogen destruction is ...
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Profile: Performance of diatomite/iron oxide modified nonwoven membrane used in membrane bioreactor process for wastewater reclamation
MBR technology has obvious advantages over conventional activated sludge process such as high pollutant removal efficiency, complete solid–liquid separation and little sludge waste. However, high membrane cost, intensive energy consumption and serious membrane fouling limited its wide application. Therefore, low-cost filters, such as nonwoven, mesh and filter cloth have been applied to ...
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Recycle/Reuse Based Effluent Treatment Plant - Textile Mills - Pakistan
Setting trends in water resource management for Textile Waste Water Treatment with MBR Technology W.O.G Group became the trend-setter in water resource management through 5.5 MLD recycle/reuse based effluent treatment plant. PREVIOUS TREATMENT METRICS: Effluent treatment capacity: 2500 m3/day Treated effluent quality: As per local discharge standards Existing Treatment Scheme: ...
By WOG Group
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Why Choose MBBR Technology to Optimize Your Current Sewage Treatment Process?
In both municipal and industrial settings, dealing with the organic matter in wastewater can be difficult. As regulations for treated wastewater become more and more stringent, municipalities and commercial/industrial organizations are looking for technology that can meet environmental demands. For organic materials, one of the most effective methods of treatment is integrating a biological ...
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Combined mesophilic anaerobic and thermophilic aerobic digestion process for high-strength food wastewater to increase removal efficiency and reduce sludge discharge
In this study, a process that combines the mesophilic anaerobic digestion (MAD) process with thermophilic aerobic digestion (TAD) for high-strength food wastewater (FWW) treatment was developed to examine the removal of organic matter and methane production. All effluent discharged from the MAD process was separated into solid and liquid portions. The liquid part was discarded and the sludge ...
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