نتایج جستجو برای: combination efficiency ec

تعداد نتایج: 785387  

Journal: :Water 2023

The combination of the chemical coagulation-assisted electrocoagulation (CC-EC) process with a solar photovoltaic energy source has attracted increasing attention for efficient removal oxygen demand (COD) from pharmaceutical wastewater. In this paper, CC-EC been utilized as an alternative to conventional processes treatment effects various operating parameters, such coagulant dosage, type, numb...

ژورنال: علوم آب و خاک 2019

The aim of this study was the effect of raw water quality on the efficiency of domestic reverse osmosis apparatus in Khuzestan province. The results showed that the purified water quality was related to the quality of entrance raw water. With increasing in salt concentrations (EC) or TDS, purification efficiency was decreased. The cation and anions content of refinery water was related to TDS a...

2010
Takeshi TATEYAMA Toshitake TATENO Keiko SHIMIZU

High-skill tasks such as aircraft maintenance procedures generally require considerable on-the-job training (OJT). Because OJT requires a considerable amount of time, longterm scheduling of OJT by considering both working efficiency and skill development is required. The authors have proposed education coefficient (EC) as a parameter that adjusts the frequency of OJT and have proposed a schedul...

2017
Hussein O. Ammar Tarek S. Makram Shaimaa Mosallam

BACKGROUND Fenoprofen calcium dehydrate (FCD) is counted as a non-steroidal, anti-inflammatory, anti-arthritic drug. FCD is slightly water soluble. It is indicated for mild pain relief, where the suggested dosage is 200 mg orally every 4 to 6 h. AIM Reduce dissolution efficiency, reach an extended therapeutic effect and reduce the frequency of the drug side effects. METHOD Combination of th...

Ali Torabian, Behnoush Aminzadeh, Kamelia Afshinnia, Seyyedali Mirshahghassemi,

Background: Car wash wastewater contains several contaminants such as organic matter, oil, grease, detergents and phosphates, all of which are harmful for the environment. In this study, the application of electrocoagulation (EC) to treat car wash wastewater has been studied, and the operating parameters optimized. The electro-Fenton (EF) for further contaminant removal was also investigated. ...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده مدیریت 1392

data envelopment analysis (dea) is a powerful tool for measuring relative efficiency of organizational units referred to as decision making units (dmus). in most cases dmus have network structures with internal linking activities. traditional dea models, however, consider dmus as black boxes with no regard to their linking activities and therefore do not provide decision makers with the reasons...

2008
H. Okada K. Hanatani S. Mihara

Electron cyclotron current drive (ECCD) experiment has been made in the helical-heliotron device, Heliotron J. A wide configuration scan shows that the EC driven current is strongly dependent on the magnetic ripple structure where the EC power is deposited. As the EC power is deposited on the deeper ripple bottom, the EC driven current flowing in the Fisch-Boozer direction decreases, and the re...

2015
Abang Masli Dayang Izawati Mat Yunus Abdul Masani Ismail Ismanizan Ghulam Kadir Ahmad Parveez

DOG(R)1, which encodes 2-deoxyglucose-6-phosphate phosphatase, has been used as a selectable marker gene to produce transgenic plants. In this study, a transformation vector, pBIDOG, which contains the DOG(R)1 gene, was transformed into oil palm embryogenic calli (EC) mediated by Agrobacterium tumefaciens strain LBA4404. Transformed EC were exposed to 400 mg l(-1) 2-deoxyglucose (2-DOG) as the ...

Journal: :environmental health engineering and management 0
seyyedali mirshahghassemi center for environmental nanoscience and risk (cenr), department of environmental health sciences, arnold school of public health, university of south carolina, columbia, south carolina 29208, united states behnoush aminzadeh department of environmental engineering, graduate faculty of environment, university of tehran, iran ali torabian department of environmental engineering, graduate faculty of environment, university of tehran, iran kamelia afshinnia center for environmental nanoscience and risk (cenr), department of environmental health sciences, arnold school of public health, university of south carolina, columbia, south carolina 29208, united states

background: car wash waste water contains several contaminants such as organic matter, oil, grease, detergents and phosphates, all of which are harmful for the environment. in this study, the application of electrocoagulation (ec) to treat car wash waste water has been studied, and the operating parameters optimized. the electro-fenton (ef) for further contaminant removal was also investigated....

Journal: :Frontiers in Environmental Science 2021

Agitation was a significant factor in achieving the high performance of electrocoagulation (EC) system. Three EC systems with four parellal monopolar Al electrodes were established to clarify influence agitation methods on pollutants removal efficiency; magnetic stirring, continuous aeration, and combination stirring aeration. The aim this work maximize industrial wastewater treatment short det...

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