نتایج جستجو برای: zoningdissolved oxygen dobiochemical oxygen demand bodwastewaterdez river

تعداد نتایج: 429450  

2002
Paul A. Conrads Edwin A. Roehl William P. Martello

The Beaufort River is a complex estuarine river system that supports a variety of uses including shellfish grounds, fisheries nursery habitats, shipping access to Port Royal, receiving waters for wastewater effluent, and an 32kilometer section of the Intracoastal Waterway. The river is on the 303(d) list of impaired waters of South Carolina for low dissolved-oxygen concentrations. The Clean Wat...

2015
Nida Rizvi Deeksha Katyal

River Hindon is an important river catering the demand of highly populated rural and industrial cluster of western Uttar Pradesh, India. Water quality of river Hindon is deteriorating at an alarming rate due to various industrial, municipal and agricultural activities. The present study aimed at identifying the pollution sources and quantifying the degree to which these sources are responsible ...

امیر نژاد, رضا , صائب, کیوان, گلین شریف دینی, نجمه,

Background and purpose: Using water quality indices is one of the methods for checking river’s water quality. NSFWQI, is the most widely used among water quality indices. This study aimed to evaluate the water quality in Dohezar river, Tonekabon, using NSFWQI. Materials and methods: In this study, sampling was performed during 6 months (3 month with low level of water and 3 months with high le...

Journal: :Environmental geochemistry and health 2010
Pham Thi Minh Hanh Suthipong Sthiannopkao Kyoung-Woong Kim Dang The Ba Nguyen Quang Hung

In order to investigate the temporal and spatial variations of 14 physical and chemical surface water parameters in the Nhue and Day sub-river systems of Vietnam, surface water samples were taken from 43 sampling sites during the dry and rainy seasons in 2007. The results were statistically examined by Mann-Whitney U-test and hierarchical cluster analysis. The results show that water quality of...

Abdolrahim Yusefzadeh, Ameneh Yusefzadeh, Edris Hoseinzadeh, Ghodratola Khorramabadi Shams, Hatam Godini, Mohammad Khoshgoftar,

Background & Aims of the Study: The use of qualitative indicators is one of the ways of water quality of river water. The purpose of this study is Khorramrood River of Khorramabad of water quality using water quality index (NSFWQI) and GIS that is a Geographic Information System . Materials & Methods: In this cross-sectional study, qualitative parameters needed to calculate NSFW...

2016
Jiabo Chen Fayun Li Zhiping Fan Yanjie Wang

Source apportionment of river water pollution is critical in water resource management and aquatic conservation. Comprehensive application of various GIS-based multivariate statistical methods was performed to analyze datasets (2009-2011) on water quality in the Liao River system (China). Cluster analysis (CA) classified the 12 months of the year into three groups (May-October, February-April a...

2007
Andrew S. Mehring George Vellidis Catherine M. Pringle Kevin A. Kuehn R. Richard Amy D. Rosemond

Dissolved oxygen (DO) levels in the Little River, a tributary within the Suwannee River basin of southern Georgia, regularly drop below 1 mg L. A budget of coarse particulate organic matter (CPOM) dynamics and the oxygen demand generated by associated microbial respiration is being developed for thirdand fifth-order reaches of the Little River. Our CPOM budget will include riparian inputs, stan...

Floating platforms at the hydropower plant reservoirs are attractive sites for aquaculture, fishing and other recreational activities. However, the unregulated construction of these platforms may negatively affect the fauna, flora and water quality of reservoirs. Thus, this study aimed to evaluate the impact of floating platforms on the limnological aspects of Nova Ponte hydropower plant reserv...

2016
Yi Wang Bin He Weili Duan Weihong Li Pingping Luo Bam H. N. Razafindrabe Jun Xu

In this study, in order to determine the efficiency of estimating annual water pollution loads from remote-sensed land cover classification and ground-observed hydrological data, an empirical model was investigated. Remote sensing data imagery from National Oceanic and Atmospheric Administration (NOAA) Advanced Very High Resolution Radiometer were applied to an 11 year (1994–2004) water quality...

Journal: :Journal of environmental management 2001
S K Ning N B Chang L Yang H W Chen H Y Hsu

Wise and sustainable uses of water resources are essential for an effective river-basin-management planning. Recent management strategy further addresses the fact that quantity and quality of water are closely interrelated, and both must be considered simultaneously for all water resources and water quality management practices. The aim of this paper is to explore the impacts of water resources...

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