نتایج جستجو برای: wastewater treatment plants

تعداد نتایج: 1585451  

2017
Nasim Habibi Parham Rouhi Bahman Ramavandi

This data article describes a facile method for production of an adsorbent from Tamarix hispida wasted wood and modified by lanthanum metal for fluoride ions removal from wastewater. The main characteristics of the adsorbent consist of BET surface area, functional groups, and elemental analysis is presented. The data for attenuating the pollutants from a real wastewater treatment which was prov...

2000
David Sussman

Each day, 15,000 tons of sludge solids are removed from U.S. wastewater treatment plants. A combination of events has caused disposal of this sludge to build up to a major problem for an increasing number of communities. Municipal sanitary wastewater contains about 0.35 pounds of dry solids per person per day. Added to this load are various commercial and industrial wastes. Ever-greater quantit...

دهقانزاده ریحانی, رضا, روشنی, مریم, فرشچیان, محمدرضا,

Background and purpose: Wastewaters are the most important sources of antibiotics entrance into the aqueous environments. Conventional wastewater treatments cannot eliminate these micropollutants and antibiotic resistant bacteria. The aim of this study was to determine the antibiotic resistance pattern in bacteria isolated from untreated sewage and effluent of municipal wastewater treatment pla...

Journal: :تحقیقات نظام سلامت 0
محسن حیدری مرکز تحقیقات محیط زیست، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران بیژن بینا مرکز تحقیقات محیط زیست، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران افشین ابراهیمی مرکز تحقیقات محیط زیست، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران مریم کاظمی پور گروه شیمی، دانشکده علوم، دانشگاه آزاد اسلامی واحد کرمان، کرمان، ایران مهدی انصاری مرکز تحقیقات فارماسیوتیکس، دانشکده داروسازی، دانشگاه علوم پزشکی کرمان، کرمان، ایران محمدمهدی امین مرکز تحقیقات محیط زیست، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران

background: this study aimed to survey a total five common human and veterinary antibiotics, including ampicillin, oxytetracycline, enrofloxacin, tylosin, and ciprofloxacin based on spe-lc-ms-ms technology in a wastewater treatment plant at central plateau of iran. also two sampling techniques, passive and grab samplings were compared in the detection of selected antibiotics. methods: in februa...

2009
Celia M. Manaia Ana Novo Bruno Coelho Olga C. Nunes

The potential of domestic wastewater treatment plants to contribute for the dissemination of ciprofloxacin-resistant bacteria was assessed. Differences on bacterial counts and percentage of resistance in the raw wastewater could not be explained on basis of the size of the plant or demographic characteristics of population served. In contrast, the treated effluent of the larger plants had signi...

2016
M. Campinas E. Mesquita R. M. C. Viegas

An overview is presented on the projects that are being carried out by Water Quality and Treatment Laboratory team of LNEC which use activated carbon based technologies for treating water or wastewater. Emphasis is given to the chemical enhancement of conventional wastewater treatment using “green” powdered activated carbon options, hybrid adsorption/ membrane processes or biologically active c...

Journal: :Water environment research : a research publication of the Water Environment Federation 2011
Noam Brand Avi Ostfeld

This manuscript describes the application of a genetic algorithm model for the optimal design of regional wastewater systems comprised of transmission gravitational and pumping sewer pipelines, decentralized treatment plants, and end users of reclaimed wastewater. The algorithm seeks the diameter size of the designed pipelines and their flow distribution simultaneously, the number of treatment ...

Journal: :Environmental management 2008
Ilda Mannino Daniel Franco Enrico Piccioni Laura Favero Erika Mattiuzzo Gabriele Zanetto

A cost-effectiveness analysis was performed to evaluate the competitiveness of seminatural Free Water Surface (FWS) wetlands compared to traditional wastewater-treatment plants. Six scenarios of the service costs of three FWS wetlands and three different wastewater-treatment plants based on active sludge processes were compared. The six scenarios were all equally effective in their wastewater-t...

2010
Darine GEARA-MATTA G. CHEBBO

This paper shows the real situation about management of water and wastewater in Lebanon and focuses on problems related to urban water pollution released in environment. Water and wastewater infrastructures have been rebuilt since 1992. However, wastewater management still remains one of the greatest challenges facing Lebanese people, since water supply projects have been given priority over wa...

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