Showing results for: water recycling Articles
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Municipal wastewater reclamation: where do we stand? An overview of treatment technology and management practice
ABSTRACTWater reclamation implementation and management practices at municipal wastewater treatment plants throughout the world are reviewed and some implementation and operational issues are defined. The information is based on a conventional literature survey, on an in depth survey study of European, Israeli and Australian medium and large-scale water reclamation utilities and on the findings ...
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Cost comparison of full-scale water reclamation technologies with an emphasis on membrane bioreactors
The paper assesses the costs of full-scale membrane bioreactors (MBRs). Capital expenditures (CAPEX) and operating expenses (OPEX) of Spanish MBR facilities have been verified and compared to activated sludge plants (CAS) using water reclamation treatment (both conventional and advanced). Spanish MBR facilities require a production of 0.6 to 1.2 kWh per m3, while extended aeration (EA) and ...
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Sentry - Emergency Gas Scrubber (EGS) - Central Avenue Pump Station in Yonkers, New York, USA - Case Study
THE PROBLEM: In 2017, The City of Yonkers, New York completed an expansion and upgrades to its existing Water Treatment Plant. The facility was looking to add chlorine gas scrubbers to be on standby in the event of an emergency. The City worked with Suez Water Environment Services to evaluate options for products and solutions for an emergency situation. After reviewing PureAir's prior work of ...
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Effect of preozonation on wastewater reclamation by the combination of ozonation and soil aquifer treatment
A series of column experiments and risk evaluation showed that preozonation was a better option to enhance the performance of soil aquifer treatment (SAT) than ozonation after SAT with respect to dissolved organic carbon, trace organic contaminants, and disinfection byproducts. This is a good example to show that upgrading pretreatments can be more effective than adding extra treatments after ...
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Monitoring odor dispersion at the world’s largest WWTP thanks to Cairnet & Cairsens - Case Study
Customer: Wastewater treatment Localisation: United States of America Installation: Close to the ponds and property line for the neighbourhood Function: Measuring odour emissions (H2S) Location Background This wasterwater and stormwater treatment plant is one of the largest in the world. It treats an average of 1.3 billion gallons (6 million m3) of wastewater each day- 500 billions gallons (2.2 ...
By ENVEA
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Florida WWTP Stays in Compliance and Wins Awards with ChemScan
Overview When the Plant City Water Reclamation Facility was upgraded for total nitrogen and total phosphorus removal and very stringent water-reuse standards, they also installed dual ChemScan Process Analyzers to maintain compliance with strict nutrient limits. Challenge The Plant City Water Reclamation Facility uses about half of its 10 MGD average treatment capacity, but 14 percent of the ...
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Dynamic simulation of water resource management focused on water allocation and water reclamation in Chinese mining cities
Mining cities have undergone the process of extensive exploitation, which always results in a series of water issues. Integrated water resource management is necessary in improving water supply, allocation and quality without damaging economic development. This article constructs a linear optimization model including a ‘Top-Down’ socio-economic mode, and ‘Bottom-Up’ water quality control and ...
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Is your business drowning in wastewater expenses?
Is your business drowning in wastewater expenses? OxyShark can help transform your wastewater treatment from a debilitating expense into a responsible environmental solution. The OxyShark water reclamation system is a natural, sustainable alternative to expensive wastewater treatment. The multi-celled, fixed-film bioreactor can process a few hundred to a few hundred-thousand gallons of wastewater ...
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Mass flow and energy efficiency in a large water reclamation plant in Singapore
This paper presents the results of a measured data-based mass flow and balance study in UluPandan Water Reclamation Plant (WRP), the second largest municipal wastewater treatment plant in Singapore. The results are benchmarked against the Strass wastewater treatment plant in Austria, which has achieved energy self-efficiency. The gaps between the two plants have been identified and areas for ...
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VSEP recycles 80% of water for Seattle laundry and provides rapid return on investment
A wastewater treatment system was installed in July of 1998 at Hospital Central Services, a major laundry facility in Seattle, Washington. The system, manufactured by New Logic International of Emeryville, CA, will be used for wastewater treatment and water recycling at this facility. The VSEP (Vibratory Shear Enhanced Processing) system uses an ultrafiltration membrane module and is able to ...
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Casa Grande, AZ - 6,000 CFM Biocube System - Case Study
Summary Casa Grande, AZ – Plant and operations management at a 6 mgd wastewater treatment plant (WWTP) and water reclamation facility (WRF) here report elimination of odor complaints through installation of a 9000-cfm biofiltration system. The selection of the biofiltration technology instead of an initially planned wet chemical scrubber option was driven by strong opposition from ...
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Casa Grande, AZ - 6,000 CFM Biocube System - Case Study
About the Project Summary Casa Grande, AZ – Plant and operations management at a 6 mgd wastewater treatment plant (WWTP) and water reclamation facility (WRF) here report elimination of odor complaints through installation of a 9000-cfm biofiltration system. The selection of the biofiltration technology instead of an initially planned wet chemical scrubber option was driven by strong ...
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Evaluation of the low pressure RO and NF membranes for an alternative tyreatment of Buyukcekmece Lake
The recent development of new generation LPRO and LPNF membranes has received attention for application in the field of wastewater and water treatment through an increasingly stringent regulation for drinking water purposes and water reclamation. This paper presents the pilot scale membrane separation studies on Buyukcekmece Lake in Istanbul with low pressure reverse osmosis (LPRO) and low ...
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JWPCP Carson - Case Study
The Los Angeles County Sanitation District operates 11 wastewater treatment plants treating approximately 576 MGD for the massive population of the greater metropolitan LA County area. Six of the largest facilities the District operates are connected through a regional network of sewers and treatment facilities known as the Joint Outfall System (JOS), serving the water treatment needs of roughly ...
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Direct potable reclamation in Windhoek: a critical review of the design philosophy of new Goreangab drinking water reclamation plant
Direct drinking water reclamation from the Goreangab reclamation plant, has been a reality in Windhoek, Namibia since 1968. Potable reclamation is a fixed part of the water supply and waste water has become an indispensible resource for the survival and continued growth of the city. The multi barrier concepts that were applied 40 years ago have been refined over many years. Improvements in ...
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Promoting Wastewater Reclamation and Reuse in the Kingdom of Saudi Arabia
Water reclamation and reuse has become an important worldwide total water management topic as the limitations of freshwater resources have come into sharp focus. In the Kingdom of Saudi Arabia (KSA), potable water is produced from either non- or very slowly renewable water resources such as groundwater, or capital- and energy-intensive seawater desalination. The KSA also lacks sufficient water ...
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BioPortz Water Resource Reclamation Facility (WRRF) Total Treatment Solution - Case Study
Problem You need a new wastewater treatment solution. Perhaps you’ve run out of real estate and need a compact, efficient process. Or maybe your industrial project needs a comprehensive treatment solution. Nexom’s Answer With the BioPortz™ Water Resource Reclamation Facility (WRRF) you can meet the most stringent organic, solids and nutrient limits with simple O&M in a ...
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The MIEX® Technology for Municipal Wastewater Treatment
The MIEX® Technology is designed for the removal of dissolved organic carbon (DOC). Until recently, the commercial application of the MIEX® Technology has been limited the treatment of potable water from surface or ground water bodies. The MIEX® Process is now being evaluated for application in municipal wastewater applications. An example of this is the use of the MIEX® Process for the ...
By Ixom
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Mainstream partial nitritation and anammox in a 200,000 m3/day activated sludge process in Singapore: scale-down by using laboratory fed-batch reactor
A laboratory fed-batch reactor has been used to study under controlled conditions the performance of partial nitritation/anammox for the 200,000 m3/day step-feed activated sludge process at the Changi Water Reclamation Plant, Singapore. The similarity of the concentrations of NH4, NO2, NO3, PO4, suspended chemical oxygen demand (sCOD), pH, and alkalinity (ALK) between the on-site process and ...
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RO brine treatment and recovery by biological activated carbon and capacitive deionization process
The generation of brine solutions from dense membrane (reverse osmosis, RO or nanofiltration, NF) water reclamation systems has been increasing worldwide, and the lack of cost effective disposal options is becoming a critical water resources management issue. In Singapore, NEWater is the product of a multiple barrier water reclamation process from secondary treated domestic effluent using ...
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