فهرست مطالب

مجله آب و فاضلاب
پیاپی 46 (تابستان 1382)

74 صفحه، بهای روی جلد: 5,000ريال
تاریخ انتشار: 1382/05/15
تعداد عناوین: 11

فارسی
English

انتخاب همه

Assessment and Simulation of Fariman Water Distribution System

Navayineya, B. Sharifi, M.B. , Salemi, A. Page 2

Growing population and improvement of living standards on one hand and limited drinking water sources on the other, have forced the related authorities to optimize and upgrade the existing water distribution systems. These networks are normally extensive and costly, in which a correct methodology to keep its performance at acceptable level in needed. In this article, the city of Fariman in the province of Khorassan was selected to carry out the above studies. In this research, the design parameters such as average per capita, water consumption daily water consumption, pick hourly and daily consumption, percentage of leakage and water meter calibration water experimentally investigated. Also the information on the physical condition of existing water distribution system and number of network breakdowns were gathered and analyzed. The obtained design data were implemented and compared with recommended Iranian code of practice, and showed.

Abstract View Paper Original: Persian
Measurement of Heavy Metals (V, Pb) in Abadan Oil Refinery Effluents and Investigation of Effects on Arvand River

Savary, A. , Lahijanzadeh, A.R. (M.Sc)Mahdieh, P. Page 14

Arvand river is located in the northern part of the Persian Gulf receiving water from three major rivers namely Karoon, Tigris, and Euphrate. It is vital for the economic and ecological activities of the inhabitants of Khorramshahr and Abadan as it plays a major role in the agriculture, trade and oil transportation. The length of the river is about 60 km with mean discharge is about 1434 m3/s.The river receives wastewater from different urban, agricultural and industrial sources. Amongst all of them, Abadan oil refinery is the largest industry which refines 400,000 barrel per day and produces a large amount of wastewater. Untreated wastewater is discharged directly with no treatment in to the Arvand. To study the effect of wastewater of Abadan oil refinery on the water quality of Arvand river, the present research project was conducted. For this purpose all available information concerning the production processes, kind and amounts of raw material, products, water consumption and wastewater production were collected, and carefully analyzed. After this step, 5 stations (3 on the river and 2 on the wastewater canal) were selected and sampling was conducted. Sampling period was adjusted for an annual period starting summer 2000 and terminating spring 2001. Sampling methodology was according to standard methods for water and wastewater and V and Pb were measured by atomic absorption spectrophotometer (Graphite). Results, have shown that V and Pb concentrations were increase dong the river. Also in comparing with the world standards it has been shown that the amount of Pb in the third station of the river was higher than WHO standards.

Abstract View Paper Original: Persian
Evaluation of Kashan Citizen's Attitudes and Behavioral Intentions Towards Water

Nazarzadeh, M. , Abrishamchi A., Tajrishy, M. Page 21

In order to obtain information about Kashan people's awareness and attitudes towards water-related issues (e.g. water quality and water conservation) and increase their acceptability towards implementation of demand management measures, a surveying research is conducted. The results of this research is presented in this paper. In this research, a questionnaire was designed and distributed among 980 families through the school students of which 387 questionnaire (about 39.5 percent) were filled out and returned back. The results showed that Kashan people are not concerned about water deficit. Most of them are dissatisfied about water quality and most of their attitudes are positive toward water conservation. Statistical analysis showed that people's readiness for using water saving devices and their opinions about price of water is not dependent on education level of family director and the kind of possession; but there is significant correlation between people's opinions about water price and their residency period in Kashan. There is significant correlation between people's readiness for installing water saving devices with their knowledge about existence of these devices and their believes toward water conservation. Considering that most of the families had expressed their readiness for implementation of water conservation programs, it can be concluded that this questionnaire was successful in changing people's attitudes toward water conservation.

Abstract View Paper Original: Persian
The Impact Assessment of Water Transfer from East to West of Tehran on Groundwater Quallity

Razaghi Khamsi, B. Karamooz, M. Jafarzadeh, N.A. Page 29

Tehran is a rare example of a major city in the world, which lacks a centralized storm water and sewer collection network. Runoffs origination from the southern slopes of Alborz Mountain are collected by means of a series of traditional, above ground small canals leading to three main collectors. These channels are passing through densely populated areas and industrial zones where industrial as well as domestic wastewater are directly discharged them.The most part of these polluted waters along with the underground water from the southern part of these polluted waters along with the underground water from the southern part of Tehran aquifer are used for irrigation purpose in over 13000 hectares of agricultural lands located in the southern part of Tehran within the boundary of the study area.In this paper, four alternatives have been considered as follows:- Existing situation without any water transfer,- Transfer of 5 m3/s of surface water,- Transfer of 10 m3/s of surface water,- Transfer of 15 m3/s of surface water,In each alternative the variation of concentration of heavy metals, Chromium, Cobalt, Cadmium, Nickel, Lead, Zinc, Iron, manganese and Copper in Tehran aquifer was computed by a computer program for a period of twenty years.The results show that in the case of not transferring any water, the concentration of heavy metals will generally increase. The groundwater level will also increase considerably. But if the wastewater is transferred, the contaminat's concentration will considerably be decreased as follows:In second and third alternatives, the rate of increase of heavy metals concentration will decrease substantially and the water level will be decreased in an acceptable manner.In the fourth alternative all of the surface water will be transferred and the only major source for irrigation purpose will be the groundwater.

Abstract View Paper Original: Persian
Modeling of Groundwater Fluctuations in the Central Area of Isfahan Metro Project

Katibehh. , Taheria. , Aboutalebi, A Page 41

In this paper, the hydrogeological characteristics of Isfahan unconfined aquifer have been studied. The effect of metro tunnelling operations on groundwater regime also has been investigated. Since, due to recharge from Zayandehroud river, the water level in Isfahan aquifer is high and tunnelling operations can rise this water level more, so the probable effects of groundwater fluctuations had to be investigated. In this study, the data due to water level in piezometers during 4.5-year period (1376 – 1380) and pumping test results, along with characteristics of aquifer and topography of the area have been collected. All the above mentioned data were processed in GIS)Idrisi 2), WINSURFER(7.1), AUTOCAD2002, and the obtained data was fed into 3D PMwin (5.1) in order to model the aquifer behavior. Calibration of the model shows 95% accuracy when comparing the calculated water level from the model with observed water levels in piezometers.In this study, the hydrodynamic parameters obtained from few pumping tests have been adjusted using steady state modeling and then obtained results were used in unsteady state modeling in order to calculate the effect of metro tunnelling operations on groundwater level. Studies show that in case of twins tunnelling (with 6 meter diameter for each tunnel), like the another case (means single tunneling with 9 meter diameter), there is no significant effect on groundwater level. Moreover, model indicates that construction of water passage between two unpermeable wall around the metro tunnel (near Zayandehroud river), results in considerable reduction in groundwater fluctuations.

Abstract View Paper Original: Persian
The Effect of Various Dosages of Coagulants to Reduction of Pollutants from Sulfite Pulping Plant Effluent

Ghodbanan, Sh Page 53

In this research, reduction of color, turbidity and COD in sulfite pulp mill effluent due to using various dosages of coagulants (alum, ferric chloride and poly aluminum chloride) as single and dual have been investigated. Results of investigation illustrate that combination of above mentioned coagulants sometimes improve the coagulation and flocculation operation in wastewater treatment plant. But respect to cost of coagulants and chemical treatment system in similar conditions, using combined coagulants for taking equal results often increases the costs and complexity of chemical effluent treatment.

Abstract View Paper Original: Persian
Performance of a Dairy Wastewater Treatment Plant

Gheisaria., Kazemi Farazmand, A Page 60

There are several methods for wastewater treatment of dairy industries throughout the world.A lot of research work has recently been directed toward new wastewater treatment methods such as aerobic and anaerobic Sequencing Bach Reactor (SBR), Anaerobic Filter (AF), Upflow Anaerobic Solid Removed (UASR) and Constructed Wetlands (CW).In Iran dairy industry effluents as a source of environmental pollution is important.In the present case study, we have evaluated the wastewater treatment process used in Milk industry and proposed ways for upgrading its performance.The system includes a pretreatment followed by a biological treatment unit which consists of an anaerobic lagoon and an activated sludge process.Results showed that the performance of the system was satisfactory.BOD5 and COD removal efficiencies were about 35% and 61% for anaerobic lagoon and activated sludge respectively. The total efficiency of the system was found about 96%.

Abstract View Paper Original: Persian

علمی مصوب

مجله آب و فاضلاب

Journal of Water & Wastewater

دوماهنامه فنی مهندسی

آخرین شماره | آرشیو

ISSN: 1024-5936 eISSN: 2383-0905

صاحب امتیاز:

مهندسین مشاور طرح و تحقیقات آب و فاضلاب

مدیر مسئول:

مهندس عباس پیراینده

سردبیر:

دکتر احمد ابریشم چی

تلفن نشریه: ۰۳۱-۳۲۶۸۲۴۱۲

اطلاعات بیشتر نشریه

درباره نشریه پیام به نشریه سایت اختصاصی نشریه پذیرش الکترونیکی مقاله راهنمای نویسندگان

به جمع مشترکان مگیران بپیوندید!

فهرست مطالب

مجله آب و فاضلاب پیاپی 46 (تابستان 1382)

مجله آب و فاضلاب

Journal of Water & Wastewater

مجله آب و فاضلاب
پیاپی 46 (تابستان 1382)