river pollution Articles

236 Results found
  • Category: Water & Wastewater ×

  • Subcategory: Water Resources ×

  • Keyword: river pollution ×

Assessment of heavy metal pollution in stream sediments for the Baoji City section of the Weihe River in Northwest China

by IWA Publishing  (Oct. 20, 2014)

The concentrations of Pb, Zn, Cu, Cd and Cr in the stream sediment in the Baoji City section of the Weihe River, Northwest China, were determined to evaluate their contamination levels, spatial distribution and potential ecological risk. The average concentrations of the heavy metal sediments were 52.92 mg kg−1 for Pb, 99.04 mg ...

Geospatial water quality assessment system for the Sg. Buloh river basin in Malaysia

by Inderscience Publishers  (Nov. 24, 2014)

Assessment of pollution risk requires the assimilation of spatio-temporally variable data on water quality parameters. This paper describes a GIS user-interface program coupled with a water quality index (WQI) model that was developed and built to assess water quality in the Sg. Buloh river basin. Fifty-two water sampling stations were selected ...

Centinela: an early warning system for the water quality of the Cauca River

by IWA Publishing  (Nov. 10, 2014)

The Cauca River is the drinking water source for 1.3 million inhabitants of the city of Cali, Colombia. Although the river discharge is sufficient to handle the water demand of the city all year long, significant water pollution events cause frequent disruption to the Puerto Mallarino Treatment Plant (PMTP) and the water supply service, with ...

The impact of point sources of pollution on the transport of micropollutants along the river continuum

by IWA Publishing  (Jun. 18, 2014)

The main objectives of the presented study were to quantify the transfer of polychlorinated dibenzo-p-dioxins (PCDDs)/polychlorinated dibenzofurans (PCDFs) (polychlorinated dibenzo-p-dioxins/polychlorinated dibenzofurans) and dioxin-like polychlorinated biphenyls (dl-PCBs) along the river continuum and to evaluate the impact of wastewater ...

Economic analysis of alternative pollution abatement policies: the case of Buriganga River, Bangladesh

by Inderscience Publishers  (Jun. 2, 2014)

The Buriganga River is a prime example of serious surface water pollution problem. So far the emphasis of pollution abatement policy for this river has been solely on the application of command and control (CAC) mechanisms (standards on emission discharges), however little success has been achieved as the polluters seem to be reluctant to comply ...

Automatic control of pollutant on a shallow river using surface water systems: application to the Ebro River

by IWA Publishing  (Jun. 5, 2014)

In this paper, the problem of automatic control of pollutant on a shallow river using surface water systems is addressed using a benchmark test case based in the Ebro River. The Ebro River presents flooding episodes in the city of Zaragoza in Spring when snow melts in the Pyrenees. To avoid flooding and high pollutant levels in living areas, ...

Longitudinal and transverse dispersion coefficients in braided rivers

by IWA Publishing  (Jul. 23, 2014)

The dispersion characteristics of braided rivers are presently unclear. The comprehensive flow structure in a physical braided river model was measured and was used to estimate its dispersion coefficient tensor. The largest values of the longitudinal and transverse dispersion coefficients occurred in the separation zone in two anabranches. The ...

Removal of indigenous coliphages and enteric viruses during riverbank filtration from highly polluted river water in Delhi (India)

by IWA Publishing  (Jun. 18, 2014)

Emerging countries frequently afflicted by waterborne diseases require safe and cost-efficient production of drinking water, a task that is becoming more challenging as many rivers carry a high degree of pollution. A study was conducted on the banks of the Yamuna River, Delhi, India, to ascertain if riverbank filtration (RBF) can significantly ...

Water quality assessment and conservation strategies for the upper stretch of Hindon river – a tributary of Yamuna, India

by Inderscience Publishers  (Aug. 11, 2014)

The study was conducted to know the pollution status of upper stretch of Hindon River and its temporal changes over monsoon, post-monsoon and pre-monsoon seasons due to change of physiochemical parameters during the period June 2011 to May 2012. The upper stretch of the river receives large amount of untreated domestic discharge, agricultural ...

Water quality assessment of a polluted urban river

by Inderscience Publishers  (Oct. 7, 2013)

Urban rivers in Latin America are heavily impacted by human activities that affect their functions and services. This paper shows the results of a water quality assessment for the Reconquista River, the second most polluted urban river in Argentina. They allowed the identification of the main processes of transport of pollutants and the ...

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