نتایج جستجو برای: water quality management

تعداد نتایج: 1991066  

2010
Meredith Gartin Beatrice Crona Amber Wutich Paul Westerhoff

Popular concern over water quality has important implications for public water management because it can both empower water utilities to improve service but also limit their ability to make changes. In the desert city of Phoenix, Arizona, obtaining sufficient high-quality water resources for a growing urban population poses a major challenge. Decision makers and urban hydrologists are aware of ...

Journal: :pollution 2015
md. sikder shunitz tanaka takeshi saito toshiyuki hosokawa sulmin gumiri

the development of a surface water evaluation index is a critical factor in the assessment, restoration and protection of stream water quality. quantifying water pollution in specific grade using dominant parameters is important, as this can explain the current state of water pollution with accuracy. as a result, an integrated multi-parameter water quality index has been developed. it is based ...

Mohammad Faramarzian, Mohammad Miri, Mohammad Reza Shokouhi, sayyed Ali Almodaresi, Zahra Derakhshan,

Abstract Introduction: Determining the quality of water is particularly important in water resources management, and monitoring and zoning it are considered as a significant principle to be taken into account in planning. Schuller method is the commonest way to determine the quality of water. The present study was conducted in order to determine the quality of drinking water using Schuller mod...

2005
I. K. Diadovski

We offer a model for integrated water quality management. The proposed model integrates water protection, land and water use, preservation of ecosystem sustainability, preservation of functional unity of catchment and river flow and socio-economic activity in the catchment. The model has been developed on the basis of combining existing models, including balancing, deterministic (2D) and statis...

Journal: :Marine pollution bulletin 2012
Chris Carroll David Waters Suzanne Vardy David M Silburn Steve Attard Peter J Thorburn Aaron M Davis Neil Halpin Michael Schmidt Bruce Wilson Andrew Clark

Targets for improvements in water quality entering the Great Barrier Reef (GBR) have been set through the Reef Water Quality Protection Plan (Reef Plan). To measure and report on progress towards the targets set a program has been established that combines monitoring and modelling at paddock through to catchment and reef scales; the Paddock to Reef Integrated Monitoring, Modelling and Reporting...

Journal: :international journal of civil engineering 0
d. khan department of agricultural engineering, university of engineering & technology peshawar pakistan n. ejaz department of civil engineering university of engineering and technology, taxila, pakistan t.a. khan department of agricultural engineering, university of engineering & technology peshawar pakistan t.u. saeed transport department, government of khyber pakhtunkhwa pakistan h. attaullah department of civil engineering university of engineering and technology, peshawar, pakistan

globally, irrigated agriculture is the largest extractor and the most frequent consumer of groundwater resources, with important groundwater-dependent and largely spread agro-economies. quality of irrigation water is one of the key factors which have either direct or indirect impact on plant growth, soil and water management practices and plant yields. this work aims at highlighting the importa...

Journal: :journal of agricultural science and technology 2013
h. chu w. lu l. zhang

water quality assessment provides a scientific basis for water resources development and management. this case study proposes a factor analysis- hopfield neural network model (fhnn) based on factor analysis method and hopfield neural network method. the results showed that the factor analysis (fa) technique was introduced to identify important water quality parameters. results revealed that bio...

Background and purpose: Monitoring quality of rivers water and awareness of its health status over time and identifying vulnerable zones are considered as essential steps towards sustainable development and efficient management of the environment. This study used multivariate statistical methods for analyzing water quality and awareness of rivers state in the Mazandaran province, Iran. Materia...

2013
Reza Derakhshani Mahmoud Alipour

The water balance calculation and water quality are very important matters in the groundwater management. The water balance includes two parameters: input and output parameters. The input parameter is consisted from surface recharge (precipitation, irrigation return water, surfaces runoff recharge) and underground inflow (flow from adjacent aquifers). The underground inflow is an important fact...

The present study has been conducted to determine the surface water quality of urban area in Savar, Dhaka, Bangladesh by determining some water quality parameters (Transparency, Temperature, pH, EC, Eh, DO, TSS, TDS, TS, BOD5, COD, TOC, Cl-, Br-, SO4-2, NO3-, NO2-, PO4-3, TP, HCO3- and Total alkalinity) as well as the status of phytoplankton’s community in the water from two lakes (Tiger Lake a...

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