فهرست مطالب

نشریه علوم و مهندسی آب و فاضلاب
سال چهارم شماره 2 (تابستان 1398)

تاریخ انتشار: 1398/04/01
تعداد عناوین: 12

فارسی
English

انتخاب همه

Drafting a Strategic Plan for Regional Water Companies (Case study: Regional Water Company of West Azarbaijan)

Rahim Dabbagh *, Svda Jnalipoor Pages 4-16

The complexity of the accelerating transformations in technology and the consequent changes in economic and social systems demands the managers of organizations to study the environment and consider the future changes as one of their most important tasks. In this context, managers need to use efficient methods and techniques to incorporate all effective factors into their management to lead the companies to its main objective. Strategic planning is among such methods and approaches. In this research, strategic planning is investigated in case of the Regional Water Company of West Azerbaijan using a comprehensive framework strategy. The framework consists of four stages of start, input, comparison and decision making. Information on the strengths, weaknesses, opportunities and threats were obtained through interviewing the leaders and experts of the company. By intuitive analysis at the end of the four-stage process, the strategies derived from the SWOT matrix were rated and actions were suggested for them. Also the SOAR strategic model, as a combination of SWOT model and positive thinking, was used for strategic planning which resulted in fulfilling the environmental standards based on international standards, stability in maintaining the level of cultivation in the province, annual increase in efficiency of water resources and facilities, and prevention of desertification. Accordingly, the priorities of the company’s strategies are: 1. Managing the available water resources in the basins; 2. Adding new products and services in relation to current products and services; 3. Selecting economic partners for participation in exploitation and construction; and 4. Economizing the assigning projects to attract investments.

Keywords: Comprehensive framework strategy, Regional Water Companies, Strategic Planning, SWOT matrix

Abstract View Paper Case Study Original: Persian
Ranking of Consumption Management Strategies in Drinking Water Distribution Networks by Using Multiple Attribute Decision Making

Abbas Jahangiri * Pages 17-26

Water consumption management strategies seek to reduce water consumption and establish a reasonable and sustainable balance between water supply and demand. The purpose of this paper was to rank the consumption management strategies in drinking water distribution networks by using Multiple Attribute Decision Making (MADM). To this end, four strategies and five attributes were considered to form the decision making matrix. The strategies were: 1) Cultural approach; 2) Using low-flow fixtures; 3) Increasing water tariffs; 4) Reducing permissible water consumption without income. Five attributes were: 1) Strategy implementation cost; 2) Time required for the implementation of the strategy; 3) Customer satisfaction from the strategy implementation; 4) Impact of strategy on consumption reduction; 5) Impact of strategy on unaccounted for water. These studies were conducted in Central Province Rural Water and Wastewater Company. In order to determine the score of each strategy from each index, group decision making was used and a questionnaire was distributed among 14 authorities of the Company. The average scores were incorporated into the decision matrix. Furthermore the weight of each attribute was determined using the Entropy method. In order to process the decision making matrix, WASPAS method was used and calculations were implemented in Excel 2010 spreadsheet. Finally, the strategies were ranked and the results showed that the best strategy to reduce drinking water consumption in the villages of this province is to use low-flow fixtures. Therefore, it is recommended that these fixtures be made available to the public in accordance with a comprehensive plan and also the necessary training in this regard be provided.
Keywords: Multiple Attribute Decision Making, Low-Flow Fixtures, Water consumption management, Weighted aggregated sum product assessment

Abstract View Paper Research/Original Article Original: Persian
Interpreting the Spent Cost for Water Supply and Transmission Projects in Semnan Province

Mohammad Arabpanahan *, Iraj Heidarian Pages 27-36

Significant shortage of water resources capacities, especially in central Iran’s desert basins, necessitates construction and implementation of water supply and transmission facilities. Costs of such projects have effects on water pricing and consumption management. For water, with final consumption nature, achieving real price based on demands is important in encouraging the private sector contribution and improvement of drinking water consumption pattern. Current study, based on documented database, calculates spent cost for accomplishing such above-mentioned projects in Semnan province, Iran. Results showed that for water supply and transmission projects, there was a significant difference between spent cost and common established tariff. Actually, it was confirmed that currently, water is not considered as an economic good with meaningful concept of benefit or loss. According to the current pricing system, improvements in consumption management could not be expected, especially in drinking water uses.
Keywords: Earth Dam, Spent cost, tariff, water supply, Water transmission line

Abstract View Paper Research/Original Article Original: Persian
Designing Solar Desalination System by Using Reverse Osmosis-Photovoltaic Method (Brackish Water of Sarband Village, Ardabil)

Behnam Sami Hesar *, Mahdi Zarghami, Reza Yegani, Mehran Sabahi Pages 37-46

View Paper Case Study Original: Persian
Locating Areas Suitable for Groundwater Artificial Recharge with Fuzzy Model (Case Study, Lorestan Province)

Zahra Yarmoradi *, Mehdi Khodadad, Behrooz Nasiri, Mostafa Karampoor Pages 47-57

Iran is a dry land with very little rainfall. The average rainfall in Iran is less than a third of the global average. Nowadays, with the increase in population and the subsequent increase in demand for food, the utilization of water resources, and in particular groundwater resources, is considerably increased. Currently the amount of groundwater resources exploitation exceeds its supply and so the lack of groundwater resources should be compensated. The purpose of this study was to locate zones suitable for the artificial recharge of the aquifers with a case study for Lorestan Province. For this purpose, AHP was employed as an efficient techniques and comprehensive system designed for multiple criteria decision-making. Required layers such as the slope, soil and geological structure, land use, rainfall, distribution of Quaternary alluvial and satellite imagery of the area was prepared. Then GIS software was used to overlay the layers and information and with use of Fuzzy logic, distinguishing suitable sites for artificial recharge of groundwater and the flood spreading. Based on the results, form the total area of the province (28294 km²), about 9258.36 km² (32.5%) are suitable for the design of artificial recharge and 5926.36 km² (about 21%) can be considered for flood spreading. Finally, the integration of the two resulting maps led to suitable sites for artificial recharge and flood spreading as about 7682.21 km² (21.79%). Therefore, GIS models are a powerful tool to locate artificial recharge and flood plain sites, because of their ability for analysis of large geographical data and prioritization of scientific decisions.
Keywords: Artificial recharge, fuzzy model, Groundwater, Locating, Lorestan province

Abstract View Paper Research/Original Article Original: Persian
Investigation of the Effective Factors on the Subsidence in Tehran South-East Plain Due to Excessive Groundwater Exploitation

Omid Tavasoli *, Hasan Karbin, Mina Torabi, Adel Asakereh Pages 58-72

Land subsidence is amongst the issues that occur due to excessive groundwater exploitation, causing deep gaps in the ground, tilting of wells and collapse of buildings. In most areas of the country, the main reason for this phenomenon is water table draw-down, which is caused by the lack of rainfall due to climate change and excessive exploitation of groundwater. In this paper, in order to investigate the effective factors on the subsidence in the South-East plain of Tehran, various stations in this area have been studied and numerically modeled using the finite element method. GEOSTUDIO software has been used to analyze the geotechnical and hydraulic data in the region in comparison to the results of previous studies. The results indicated that the level of water changes and depth of drilled boreholes had an effect on the amount of land subsidence, and with decreasing water recharge to groundwater table, the subsidence rate increased by up to 55%. Also by increasing the percentage of changes in water exploitation, the subsidence rate was increased by about 40%.
Keywords: Finite element method, Ground subsidence, South-East Tehran plain, Groundwater exploitation, Water return

Abstract View Paper Research/Original Article Original: Persian

علمی مصوب

نشریه علوم و مهندسی آب و فاضلاب

Journal of Water & Wastewater Science and Engineering

فصلنامه فنی مهندسی

آخرین شماره | آرشیو

ISSN: 2588-3941 eISSN: 2588-395X

صاحب امتیاز:

انجمن آب و فاضلاب ایران

مدیر مسئول:

دکتر مسعود تابش

سردبیر:

دکتر حمیدرضا صفوی

تلفن نشریه: ۰۲۱-۸۸۳۹۱۳۹۰

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فهرست مطالب

نشریه علوم و مهندسی آب و فاضلاب سال چهارم شماره 2 (تابستان 1398)

نشریه علوم و مهندسی آب و فاضلاب

Journal of Water & Wastewater Science and Engineering

نشریه علوم و مهندسی آب و فاضلاب
سال چهارم شماره 2 (تابستان 1398)