Showing results for: medical wastewater Articles
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Treatment of hospital wastewater effluent by nanofiltration and reverse osmosis
Considerable concern exists regarding the appearance and effects of trace and ultra trace pollutants in the aquatic environment. In this context, it is necessary to identify relevant hot spot wastewater – such as hospital wastewater – and to implement specific wastewater treatment solutions. Membrane bioreactor (MBR) technology seems to be a suitable pre-treatment approach for the subsequent ...
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How to Treat Hospital Wastewater by Electrocoagulation
In this article, we will discuss the sources of hospital wastewater, the effects of hospital wastewater on the environment, and how innovative electrocoagulation treatment technology can be sustainably used as part of an integrated hospital wastewater treatment system to effectively treat this contaminated wastewater stream. When people are sick or injured, they typically go to a hospital to ...
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Intrinsic kinetics for fixed bed bioreactor in hospital wastewater treatment
Variation in hospital wastewater (HWW) pollutants and differences with municipal wastewater (MWW), make the use of biokinetic coefficients obtained from activated sludge in the MWW treatment unprofitable for designing, modeling and evaluation of biological processes for HWW treatment. Since this study was conducted to evaluate the performance and biokinetic coefficients of a fixed bed ...
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Modeling of hospital wastewater pollution by pharmaceuticals: first results of Mediflux study carried out in three French hospitals
A study has been carried out in three French hospitals in order to assess and model the pharmaceutical load in hospital wastewater and its impact in WWTP. This study, called Mediflux, consisted of three successive steps: first, an original prioritization procedure developed in our laboratory enabled us to select a list of relevant molecules from different Anatomical Therapeutic Chemical (ATC) ...
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Evaluation of removal efficiency of human antibiotics in wastewater treatment plants in Bangkok, Thailand
This study aimed to investigate the antibiotic concentration at each stage of treatment and to evaluate the removal efficiency of antibiotics in different types of secondary and advanced treatment, as well as the effects of the location of their discharge points on the occurrence of antibiotics in surface water. Eight target antibiotics and four hospital wastewater treatment plants in Bangkok ...
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Virulence and plasmidic resistance determinants of
Escherichia coli isolated from municipal and hospital wastewater treatment plantsEscherichia coli is simultaneously an indicator of water contamination and a human pathogen. This study aimed to characterize the virulence and resistance of E. coli from municipal and hospital wastewater treatment plants (WWTPs) in central Portugal. From a total of 193 isolates showing reduced susceptibility to cefotaxime and/or nalidixic acid, 20 E. coli with genetically distinct fingerprint ...
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Hospital Wastewater Treatment Process
1. The characteristics of hospital sewage Hospital waste water contains some special pollutants, such as drugs, disinfectants, diagnostic agents, detergents, and a large number of pathogenic microorganisms, parasite eggs and various viruses (such as roundworm eggs, hepatitis virus, tuberculosis and dysentery) . In addition, there are radioactive substances such as radium 226, phosphorus, gold ...
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The impacts of sea-level rise on the California coast
Over the past century, sea level has risen nearly eight inches along the California coast, and general circulation model scenarios suggest very substantial increases in sea level as a significant impact of climate change over the coming century. This study includes a detailed analysis of the current population, infrastructure, and property at risk from projected sealevel rise if no actions are ...
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Coagulation Water Treatment vs. Electrocoagulation Treatment
There are many ways to treat water, and one of the most common tactics is coagulation. This method provides clean, safe water and is typically used alongside other standard processes like sedimentation, disinfection, and filtration. All of these methods assist in removing contaminants from water. However, while coagulation water treatment is a good conventional option, a better solution exists ...
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Ideal for onsite chlorine applications - Case Study
Water treatment could be applied to various fields, our anodes are currently used for Sodium Hypochlorite and Electrolysis of water. Sodium hypochlorite (NaOCl) is a compound that can be effectively used for water purification. It is used on a large scale for surface purification, bleaching, odor removal and water disinfection. It can be also applied in sanitary wastewater and industrial ...
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The advantages of advanced oxidation with filtration
Breaking the trend of agricultural appliances with the help of 14 V electricity; a system with high voltage was lately introduced in the farming sector. The government is providing power to engine auxiliaries and other electrically driven systems. It helps to reduce fuel consumption, under the load part conditions. Nowadays, more farmers are encouraged to use the high voltage system. ...
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Anti-fungal compounds: emerging environmental contaminants
Azole fungicides are active ingredients in a range of pharmaceutical and personal care products, and are also used in agriculture. This study reviewed the sources, presence and risks of these compounds in the environment, finding evidence of toxic effects on aquatic organisms. The researchers provide directions for future research and warn caution should be exercised until more toxicity data ...
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Florida, USA - Advanced Sequencing Batch Reactor - Case Study
300,000 gpd ASBR facility replaced the existing concrete and steel conventional extended aeration activated sludge treatment, secondary clarifiers, and aerobic sludge digesters. Receives wastewater collected from 14 neighborhoods, residential housing, nursing homes and hospital facilities on a 425 acre site. Wastewater treatment comprises flow metering, fine screening and washing, grit ...
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Case study - Florida, USA – advanced sequencing batch reactor
300,000 gpd ASBR facility replaced the existing concrete and steel conventional extended aeration activated sludge treatment, settlement clarifiers, and aerobic sludge digestors. Receives wastewater collected from 14 neighborhoods, residential housing, nursing homes and hospital facilities on a 425 acre site. Wastewater treatment comprises flow metering, fine screening and washing, grit ...
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U.S. EPA Promulgates Final Air Toxics Standards for Compression Ignition Reciprocating Internal Combustion Engines (RICE)
On March 3, 2010, U.S. EPA promulgated final National Emissions Standards for Hazardous Air Pollutants (NESHAP) for existing compression ignition (CI) stationary Reciprocating Internal Combustion Engines (RICE) that were not previously regulated by the existing, so called, RICE MACT (i.e., 40 CFR Part 63, Subpart ZZZZ). The RICE MACT rule was originally promulgated in 2004. The March 3, 2010 ...
By All4 Inc.
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Ideal for onsite chlorine applications
Water treatment could be applied to various fields, our anodes are currently used for Sodium Hypochlorite and Electrolysis of water. Sodium hypochlorite (NaOCl) is a compound that can be effectively used for water purification. It is used on a large scale for surface purification, bleaching, odor removal and water disinfection. It can be also applied in sanitary wastewater and industrial ...
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