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AN INVESTIGATION OF OXIDES OF NITROGEN IN METROPOLITAN TEHRAN
INVESTIGATION OXIDES NITROGEN METROPOLITAN TEHRAN
2009/12/30
Planning of air pollution control programs need knowledge of pollutants emitting sources; the Department of Environmental Health, School of Public Health, Tehran University, performed an air monitorin...
A SURVEY OF SOIL FOR DETERMINATION OF CORROSION FACTORS ON WATER PIPE WITHIN TEHRAN AREA
Corrosion of water pipes Resistivity
2009/12/29
Corrosion of water and gas pipes is not desirable from the view point of health, economy and nuisances. There are many factors in soil which attack the metal pipes for corrosion. (Steel, Cast, Iron an...
The mean noise levels were measured in the different sections of six representative mills in the Isfahan area, and audiometric measurements were made in 282 male workers employed in these mills. The m...
The mean noise levels were measured in the different sections of six representative mills in the Isfahan area, and audiometric measurements were made in 282 male workers employed in these mills. The m...
EVALUATION OF ACTIVATED CHARCOAL SAMPLER TUBES
Adsorption capacity Relative recovery percentage humidity
2009/12/29
This study has been conducted to evaluate the effectiveness of the local made charcoal tubes against adsorption of benzene, toluene and xylene vapors. Results indicate that desorption capacity and the...
AN EVALUATION OF APPLICABILITY OF PHYSICO-CHEMICAL THRTIARY TREATMENT OF DOMESTIC WASTE IN A REGION OF TEHRAN,IRAN
Physico-chemical treatment Domestic waste
2009/12/29
The Purpose of this study was comparison of applicability of tertiary treatment of Tehran domestic sewage with organic and inorganic coagulants or a combination of them. The far test procedure was app...
PRODUCTION OF ACTIVATED CHARCOAL SAMPLER TUBES FOR SAMPLING AIR CONTAMINANTS
Polyurethane foam Air contaminates
2009/12/29
The importance of the use of activated charcoal tubes for sampling gases and vapors is very well-known. For producing these tubes in the country, their production started in the laboratory of the depa...
PRODUCTION OF ACTIVATED CHARCOAL SAMPLER TUBES FOR SAMPLING AIR CONTAMINANTS
Polyurethane foam Air contaminates
2009/12/29
The importance of the use of activated charcoal tubes for sampling gases and vapors is very well-known. For producing these tubes in the country, their production started in the laboratory of the depa...
PARS PARER INDUSTRY EFFLUENT TREATABILITY BY COAGULATION
Chemical treatment Paper industry’s effluent treatment
2009/12/29
In this survey, with the main objective of studying final effluent treat ability of Pars Paper Industries, the quantitative and qualitative characteristics of the effluent were firstly determined, whi...
PARS PARER INDUSTRY EFFLUENT TREATABILITY BY COAGULATION
Chemical treatment Paper industry’s effluent treatment
2009/12/29
In this survey, with the main objective of studying final effluent treat ability of Pars Paper Industries, the quantitative and qualitative characteristics of the effluent were firstly determined, whi...
FUNDAMENTAL PROBLEMS OF WATER TREATMENT PLANTS IN IRAN
FUNDAMENTAL PROBLEMS WATER TREATMENT PLANTS IRAN
2009/12/29
This survey is carried out with the major objective of studying various water treatment plants in Iran. The emphasis was on the plants being fed by surface water resources; also the clarification unit...
FUNDAMENTAL PROBLEMS OF WATER TREATMENT PLANTS IN IRAN
FUNDAMENTAL PROBLEMS WATER TREATMENT PLANTS IRAN
2009/12/29
This survey is carried out with the major objective of studying various water treatment plants in Iran. The emphasis was on the plants being fed by surface water resources; also the clarification unit...
Comparison of Neural Network and Principal Component-Regression Analysis to Predict the Solid Waste Generation in Tehran
Prediction of waste generation Artificial neural network Multivariable linear regression Principle component analysis
2009/12/18
Background: Municipal solid waste (MSW) is the natural result of human activities. MSW generation modeling is of prime importance in designing and programming municipal solid waste management sys...
Manufacturing sound absorber based on combined recycling of polyethylene trephetalat and polystyrene at low and median frequencies
plastic recycling polyetylen trephetalat (PET) polyetylen (PE) combined recycling low frequency sound absorber
2009/12/15
Background and aim: Noise pollution is one of the main cause of occupational hearing loss. According to WHO reports in many countries workers have been exposed to 85 - 90 dB noise level. The purpose o...
Municipal solid waste analysis in Iran
Municipal Solid Waste (MSW) disposal recycle compost landfill
2009/12/15
Background and Objectives: In the recent years Municipal Solid Waste (MSW) has been one of the most important environmental concerns to throughout regions of Iran. Sound MSW management for any area ne...