نتایج جستجو برای: sulfate scale

تعداد نتایج: 634104  

Journal: :Ground Water Monitoring and Remediation 2022

Delivery of sulfate to petroleum hydrocarbons (PHCs) source zones and groundwater plumes is desirable enhance biodegradation rates when treatment has become limited due depletion sulfate. Sulfate land application involves spreading salts on ground surface allowing their dissolution infiltration into subsurface. The objectives this pilot-scale investigation were capture the vertical transport be...

2016
J. Moghadasi H. Müller-Steinhagen M. Jamialahmadi A. Sharif

Formation damage has been observed in several oil reservoirs and production equipment in Iranian oil fields. Laboratory and field testing confirmed that the primary cause of damage was the build-up of calcium carbonate, calcium sulfate and strontium sulfate scale either in the perforation tunnels or in the formation sandstone nears the wellbore. Conventional acid treatments could dissolve this ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - پژوهشکده مهندسی فرایند 1395

abstract: mineral scaling in oil and gas production equipment is one of the most important problem that occurs while water injection and it has been recognized to be a major operational problem. the incompatibility between injected and formation waters may result in inorganic scale precipitation in the equipment and reservoir and then reduction of oil production rate and water injection rate. ...

2011
Valiollah Dabidy Roshan Mehdi Pourasghar Zeinab Mohammadian

OBJECTIVE Many studies evaluated the efficacy of exercise on some depression indices, but the effect of physical exercise in exhilarating milieu on urine 3-Methoxy-4-Hydroxyphenylglycol (MHPG) sulfate-the main metabolite of norepinephrine is not clear. The purpose of this research was to study the effect of a six-week intermittent walking in the water on 24-hour urine MHPG sulfate in depressed ...

2011

Additional important properties to consider for additional analysis within the aerosol operations include the density, conductivity and ionizability of the element or compound. Magnesium is an extremely light metal, approximately 2/3 the weight of aluminum. Magnesium is extremely conductive, on par with copper and aluminum. Magnesium can be ionized with the energy available within the ultra-vio...

2002
Shaocai Yu Prasad S. Kasibhatla Douglas L. Wright Robert McGraw Aijun Deng

2 ABSTRACT A six-moment microphysics module for sulfate aerosols based on the quadrature method of moments has been incorporated in a host 3-D regional model, the Multiscale Air Quality Simulation Platform (MAQSIP). Model performance was examined and evaluated by comparison with the in-situ observations over the eastern US for 40-day period from July 19 to August 28, 1995. The model generally r...

Journal: :environmental health engineering and management 0
amir hussein javid graduate school of marine science and technology, science and research branch, islamic azad university, tehran, iran mohammad malakootian environmental health engineering research center and department of environmental health, kerman university of medical sciences, kerman, iran mohsen mehdipour environmental health in sbmu, member of environmental health engineering research center, kerman university of medical sciences, kerman, iran

background: entry of untreated wastewater of wool scouring factories has been associated with many environmental hazards because of high rate of pollution. presently effective treatment methods and reducing the costs of operation and maintenance from treatment units have always been under the attention of this industry owners. the aim of this survey is to present a suitable method for the treat...

2012
D. N. Bernstein J. D. Neelin Q. B. Li D. Chen Robert H. Smith

Geoengineering applications by injection of sulfate aerosols into the stratosphere are under consideration as a measure of last resort to counter global warming. Here adaptation to a potential regional-scale application to offset the impacts of heat waves is critically examined. The ef5 fect of regional-scale sulfate aerosol emission over California in each of two days of the July 2006 heat wav...

Introduction: Proper management of postoperative pain relieves the patient’s discomfort, reduces the length of hospitalization, reduces hospital costs, and increases patient satisfaction. This study was aimed to determine the efficacy of adding magnesium sulfate to ropivacaine 0.25% in transverse abdominis plane (TAP) block under ultrasound guidance on analgesia after open appendectomy. Method...

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