digester system Articles
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ISAM Sequencing batch Reactor375 m3/day - Case study
This project was incorporated as part of an existing municipal treatment plant expansion, and the effluent is discharged to a nearby surface water stream. The plant is now operated by the Ontario Clean Water Agency. H2FLOW EQUIPMENT INC. supplied a complete package with a PARKSON 6mm fine screw screen unit followed by a FLUIDYNE ISAM SBR system including blowers, and a TROJAN UV3000 PTP ...
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Foaming during anaerobic digestion: Causes and Solutions
Foaming during sludge treatment has traditionally been associated with activated sludge systems which have been victim to this phenomenon for several decades. However, foaming has been documented in anaerobic digestion plants, leading, fundamentally, to a reduction in digester capacity and an increase in operational expenditure. The requirements for foaming of: surface active agents, gaseous ...
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Three years of operation of North America's first nutrient recovery facility
The first full-scale nutrient recovery installation in North America became operational in May 2009 at the Clean Water Service's Durham Advanced Wastewater Treatment Plant in Tigard, Oregon. Recovering ammonia and phosphorus from the dewatering side stream as struvite has a positive impact on plant operations. Significantly reducing the phosphorus recycle lowers the phosphorus loading on ...
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Two-phase anaerobic digestion for class a biosolids at moccasin bend WWTP
The Moccasin Bend Wastewater Treatment Plant (WWTP) provides treatment for the City of Chattanooga, Tennessee and the surrounding region. The City has completed upgrades to the solids handling facilities to treat and dewater the primary solids and waste activated sludge (WAS) from the WWTP. This paper summarizes the process to handle the primary solids and the start-up process. Primary solids ...
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PUB - Singapore - Jurong - Case Study
Client: PUB Solution: CambiTHP - B6 Jurong The Jurong WRP, owned and operated by PUB (Public Utility Board, Singapore) is located in the Jurong district, in the west part of Singapore. The plant is treating sludge from the waste water plant. As part of the Phase 4 Expansion project PUB choose to implement a Cambi THP system to provide the thermal hydrolysis system to process waste ...
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Atkinson, Nebraska; ISAM - Integrated Surge Anoxic Mix - Case Study
The City of Atkinson, Nebraska could not meet the Nebraska Department of Environmental Quality (NDEQ) effluent discharge requirements based on the new ammonia regulations. The existing plant also required extensive service and maintenance to keep the outdated equipment operational. Left with no choice, the plant needed to be upgraded. Client: Atkinson, Nebraska Solution: ISAM - Integrated Surge ...
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Top Applications of Shortcut Nitrogen Removal
Skipping a step streamlines treatment of a range of high-ammonia wastewater sidestreams Over the years there has been an ongoing quest to make wastewater nutrient removal more efficient than traditional activated sludge treatment, which is effective but uses a great deal of energy, carbon, and oxygen. There has been progress, starting with full nitrification-denitrification and simultaneous ...
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Dynamic modelling of nitrous oxide emissions from three Swedish sludge liquor treatment systems
The objective of this paper is to model the dynamics and validate the results of nitrous oxide (N2O) emissions from three Swedish nitrifying/denitrifying, nitritation and anammox systems treating real anaerobic digester sludge liquor. The Activated Sludge Model No. 1 is extended to describe N2O production by both heterotrophic and autotrophic denitrification. In addition, mass transfer ...
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What is biological wastewater treatment?
Biological wastewater treatment harnesses the action of bacteria and other microorganisms to clean water Biological wastewater treatment is a process that seems simple on the surface since it uses natural processes to help with the decomposition of organic substances, but in fact, it’s a complex, not completely understood process at the intersection of biology and biochemistry. Biological ...
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Is It Time To Upgrade and Convert Your SBR?
Is your Sequencing Batch Reactor (SBR) or other activated sludge process in need of a cost effective upgrade or expansion due to it being outdated, overloaded, inefficient or undersized? Have potential changes to your effluent requirements forced you to look at more expensive and complicated alternate wastewater treatment technologies? You don’t have to start over. Fluidyne Corporation, the ...
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Municipal waste water treatment plant case study
A municipal WWTP in the North of England was experiencing significant problems with accumulations of FOG in the Wetwell at the head of the treatment plant. The FOG would form a solid cap over the well several feet thick. This put considerable strain on the pumping gear, interrupted the performance of the float switches and required regular manual intervention from the staff. High costs were also ...
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