pharmaceutical wastewater Articles
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Pharmaceutical Wastewater Treatment- An Application to Effective Treat Emerging Pharmaceutical Residues in Wastewater through GWT IWRS Process
Pharmaceutical Wastewater Treatment – An Application To Effectively Treat Emerging Pharmaceutical residues in wastewater through specialized electrocoagulation, advanced oxidation and biological processes. Pharmaceuticals have become one of the newly emerging contaminants found in water supplies across the USA and around the world. This is due to the fact that wastewater discharged from ...
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Earthworms - the environmental engineers: review of vermiculture technologies for environmental management and resource development
Earthworms are being used to manage most organic wastes; treat wastewater; clean-up chemically contaminated soils; improve soil fertility and produce food crops. Their use in production of life-saving medicines and raw materials for industries are some new discoveries. We have successfully experimented in vermicomposting of 'MSW', vermifiltration of 'municipal & industrial wastewater', ...
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Elimination of selected pharmaceuticals by biosolids from municipal wastewater treatment plants: importance of modest pH change and degree of mineralization
Lab-scale batch experiments with biosolids collected from a full-scale activated sludge system (AS) and a pilot-scale membrane bioreactor (MBR) were carried out to investigate the mechanisms of elimination of 5 acidic pharmaceuticals and 2 neutral pharmaceuticals. Batch elimination experiments were conducted under the conditions of pH of 6 and 7, and a great impact of pH on elimination of ...
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Removal of micropollutants from municipal wastewater by graphene adsorption and simultaneous electrocoagulation/electrofiltration process
In this work the optimal operating conditions for removing selected micropollutants (also known as emerging contaminants, ECs) from actual municipal wastewater by graphene adsorption (GA) and simultaneous electrocoagulation/electrofiltration (EC/EF) process, respectively, were first determined and evaluated. Then, performance and mechanisms for the removal of selected phthalates and ...
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Characteristic numbers of granular activated carbon for the elimination of micropollutants from effluents of municipal wastewater treatment plants
Adsorption on granular activated carbon (GAC) is a promising step to extend existing treatment trains in municipal wastewater treatment plants (WWTPs) and, thus, to reduce the concentration of micropollutants (MPs) (e.g. pharmaceuticals) in wastewater. It is common practice to use characteristic numbers when choosing GAC for a specific application. In this study, characteristic numbers were ...
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Removal of phthalates and pharmaceuticals from municipal wastewater by graphene adsorption process
In this work graphene was used for evaluation of its adsorption behavior and performance in removing phthalate esters and pharmaceuticals in municipal wastewater. Di-n-butyl phthalate (DnBP), di-(2-ethylhexyl) phthalate (DEHP), acetaminophen (ACE), caffeine (CAF), cephalexin (CLX), and sulfamethoxazole (SMX) were emerging contaminants (ECs) with detection frequencies over 92% in a one-year ...
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Can treated municipal wastewater be reused after ozonation and nanofiltration? Results from a pilot study of pharmaceutical removal in Henriksdal WWTP, Sweden
The objective of this study was to evaluate the potential of nanofiltration (NF) and ozonation for indirect potable reuse in terms of pharmaceutical residuals. To simultaneously obtain a reasonable retentate volume for further treatment, the tests were performed at a high volume reduction factor (VRF) of 60. The feed to the pilot plant was the effluent from a BNR plant with a final process step ...
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An experimental study on bioremediation and photolysis of enrofloxacin
Recent studies have identified the occurrence of a vast number of pharmaceuticals into the municipal wastewater through excreted urine and feces. Some of these pharmaceutical compounds are degraded in the environment. However, there have been reports on the presence of pharmaceutical active compounds in drinking water. Concerns have been raised over the potential adverse effects of these ...
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Occurrence of antibiotics in pharmaceutical industrial wastewater, wastewater treatment plant and sea waters in Tunisia
Antibiotics are among the most commonly used group of pharmaceuticals in human medicine. They can therefore reach surface and groundwater bodies through different routes, such as wastewater treatment plant effluents, surface runoff, or infiltration of water used for agricultural purposes. It is well known that antibiotics pose a significant risk to environmental and human health, even at low ...
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Removal of organic wastewater contaminants in septic systems using advanced treatment technologies
The detection of pharmaceuticals and other organic wastewater contaminants (OWCs) in ground water and surface-water bodies has raised concerns about the possible ecological impacts of these compounds on nontarget organisms. On-site wastewater treatment systems represent a potentially significant route of entry for organic contaminants to the environment. In this study, effluent samples were ...
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Bioavailability of pharmaceuticals in waters close to wastewater treatment plants: Use of fish bile for exposure assessment
Pharmaceuticals are ubiquitous in surface waters as a consequence of discharges from municipal wastewater treatment plants. However, few studies have assessed the bioavailability of pharmaceuticals to fish in natural waters. In the present study, passive samplers and rainbow trout were experimentally deployed next to three municipal wastewater treatment plants in Finland to evaluate the degree of ...
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Pharmaceutical concentrations in screened municipal wastewaters in Victoria, British Columbia: A comparison with prescription rates and predicted concentrations
Pharmaceuticals and personal care products (PPCPs) are emerging chemicals of concern detected in surface waters globally. Recent reviews advocate that PPCP occurrence, fate, and exposure need to be better predicted and characterized. The use of pharmaceutical prescription rates to estimate PPCP concentrations in the environment has been suggested. Concentrations of 7 pharmaceuticals ...
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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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UV, a bright future for the water industry
The use of Ultra Violet (UV) light has now become standard practice in most municipal waste water treatment processes. Effluent is now starting to be recognised as a valuable resource, not a problem that needs to be dumped. Many waste water facilities are being renamed as water reclamation facilities, and whether the waste water is being discharged into a river, being used to irrigate crops, or ...
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UV set to dominate the municipal industry
The use of Ultra Violet (UV) light has now become standard practice in most municipal waste water treatment processes. Effluent is now starting to be recognised as a valuable resource, not a problem that needs to be dumped. Many waste water facilities are being renamed as water reclamation facilities, and whether the waste water is being discharged into a river, being used to irrigate crops, or ...
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Subsurface Drip Dispersal Of Effluent On Steep Slopes
The treatment and disposal of sewage has evolved considerably since the early 1900’s. As populations grew the methods of disposing treated sewage were frequently redesigned. Engineers had to evaluate and adjust to local conditions, climate, rolling steep terrain and the availability of funds. Municipalities built in the earlier part of the 20th century were designed according to a ...
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