نتایج جستجو برای: water treatment facility

تعداد نتایج: 1941712  

Abdossamad Rastegar, Bagher Anvaripour, Nematollah Jaafarzadeh

In the present study, lightweight expanded clay aggregate (LECA) coated with iron oxide was investigated as a low cost sorbent to remove  from wastewater. Iron oxide coated LECA (IOCL) as a new sorbent was tested for its efficiency as  sorbent using operational parameters such as contact time, the initial pH of the solutions, and sorbent dosage concentration in batch systems. The adsorption cha...

2001
G. N. Kim Y. S. Lee H. S. Kang M. H. Cho I. S. Ko W. Namkung

Pohang Neutron Facility (PNF) is a pulsed neutron facility based on the 100-MeV electron linear accelerator. It was constructed for nuclear data production in Korea, and it consists of an electron linear accelerator, a watercooled Ta target with a water moderator and a time-offlight path with an 11 m length. The 100-MeV electron linac uses a thermionic RF-gun, an alpha magnet, four quadrupole m...

Journal: :international journal of civil engineering 0
a. kaveh iust a. shakouri mahmud abadi bhrc s. zolfaghari moghaddam hihe

this paper presents a strategy for using harmony search algorithm in facility layout optimization problems. in this paper an adapted harmony search algorithm is developed for solving facility layout optimization problems. this method finds an optimal facility arrangement in an existing layout. two real-world case studies are employed to demonstrate the efficiency of this model. a comparison is ...

2001
G. N. Kim Y. S. Lee D. Son H. S. Kang M. H. Cho I. S. Ko W. Namkung

Pohang Neutron Facility (PNF) is a pulsed neutron facility based on the 100-MeV electron linear accelerator. It was constructed for nuclear data production in Korea, and it consists of an electron linear accelerator, a watercooled Ta target with a water moderator and a time-offlight path with an 11 m length. The 100-MeV electron linac uses a thermionic RF-gun, an alpha magnet, four quadrupole m...

Journal: :Environmental science & technology 2006
Min Song Shaogang Chu Robert J Letcher Rajesh Seth

Sewage treatment plant (STP) effluents are likely a major source of contamination for PBDEs, especially in the receiving water bodies of local aquatic environments surrounding the location of these discharges. Congeners of the pentaBDE mixture, 2,2,',4,4'-tetrabromodiphenyl ether (BDE47), 2,2,',4,4',5-pentabromodiphenyl ether (BDE99), 2,2,',4,4',6-pentabromodiphenyl ether (BDE100), 2,2,',4,4',5...

Journal: :international journal of health policy and management 2015
sunil saksena raj suneedh manthri pratap kumar sahoo

background an effective emergency referral transport system is the link between the home of the pregnant woman and a health facility providing basic or comprehensive emergency obstetric care. this study attempts to explore the role of emergency transport associated with maternal deaths in unnao district, uttar pradesh (up).   methods a descriptive study was carried out to assess the causes of a...

2008
G. R. E. E. Ana E. O. Oloruntoba M. K. C. Sridhar

The poor state of water and sanitation facilities in schools in Nigeria particularly those studied in Ibadan is one of the major factors for the declining health and reduced productivity among children of school age. This study assessed the state of water and sanitation facilities in schools and determined their health correlates. The study was a descriptive cross sectional survey. Eight Second...

2001
R. G. Ellingson Zhaohui Cheng

This work is based on measurements made at the Atmospheric Radiation Measurement (ARM) Southern Great Plains (SGP) central facility from April through June 1997. Five instruments of the ARM SGP central facility have principal roles in this study. The millimeter wave cloud radar (MMCR) is used to measure N and β. The microwave radiometer (MWR) is used to determine when water clouds are overhead;...

2008
Jeffrey M. Novak Ariel A. Szogi Donald W. Watts Warren J. Busscher

Drinking water treatment facilities remove impurities from raw water sources using various chemicals. The by-product produced from the purification process is called water treatment residuals (WTR). If WTR contain residual chemicals from the purification process, soluble elements may be released potentially causing chemical imbalances in soil and groundwater systems. The study objectives were t...

2006
Annetta Zintl Grace Mulcahy Theo de Waal Valerie de Waele Catherine Byrne Marguerite Clyne Nicholas Holden Seamus Fanning

Cryptosporidiosis, a protozoal disease which causes significant morbidity in humans, is one of the chief causes of diarrhoea in neonatal ruminants. although the parasite poses a significant threat to public health and animal health in Ireland, its epidemiology on the island is only poorly understood. Environmental studies have shown the waterborne parasite to be widespread in some untreated wat...

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