river pollution Articles

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Treatment of polluted river water by a new constructed wetland

by Center for Environment and Energy Research & Studies (CEERS)  (Sep. 1, 2007)

Abstract: A new constructed wetland was built to purify one polluted river in Taiwan, and this study was conducted to evaluate the treatment efficiency of the wetland. Due to the very limitation of available budget, several water quality items, which were stipulated by Taiwan’s Environmental Protection Administration for rivers, in the influent ...

Current pollution status of Yangtze River and controlling measures

by Inderscience Publishers  (May 15, 2008)

The concentration of Persistent Organic Pollutants in Yangtze River in China is increasing steadily, especially in the downstream, where the drainage is often discharged into the water body without any treatment. In this study, the pollution status, trend of mainstream and Three Gorges area are analysed based on the statistical data of the water ...

River water pollution in Indonesia: an input-output analysis

by Inderscience Publishers  (Jan. 30, 2004)

Data from global environmental monitoring activities have shown alarming environmental conditions in many developing countries. Environmental policies that could improve the environment significantly, while at the same time maintaining the growth of economic activities are needed. Using an input-output analysis, this paper researches such policies ...

Study of metal pollution in Sembrong River, Johor, Malaysia

by Inderscience Publishers  (Aug. 25, 2009)

Sampling of the Sembrong River over a 9-month period revealed maximum total aluminium (Al), ferum (Fe) and manganese (Mn) concentrations of 61.0, 33.0 and 1.5 mg/L, respectively, and pH as low as 2.5, making it one of the most metal- and acid-contaminated rivers in Malaysia. The river serves as a fresh water source to water treatment plants ...

Aquatic pollution in Mithi River of Mumbai: assessment of physico–chemical parameters

by Inderscience Publishers  (Jan. 17, 2013)

The present investigation along Mithi River of Mumbai deals with the study of physico–chemical parameters like pH, conductivity, solid content, hardness, chloride, sulphate/sulphide, phosphate, biochemical oxygen demand (BOD), chemical oxygen demand (COD), surfactants, oil/ grease and phenol content in river water samples. The study was performed ...

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 ...

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 ...

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, ...

Water Pollution

by IWA Publishing  (Jul. 25, 2012)

Water pollution is a major global problem that requires ongoing evaluation and revision of water resource policy at all levels (from international down to individual aquifers and wells). It has been suggested that it is the leading worldwide cause of deaths and diseases, and that it accounts for the deaths of more than 14,000 people daily. In ...

Diffuse pollution

by IWA Publishing  (Apr. 6, 2012)

Diffuse Pollution or Nonpoint source (NPS) pollution is water pollution affecting a water body from diffuse sources, such as polluted runoff from agricultural areas draining into ...

A Win for River Restoration

by IWA Publishing  (Feb. 1, 2012)

A team of scientists from eWater CRC based in Canberra and at Griffith University in Queensland has won the WaterSecure - Healthy Waterways Research Award for its work on Prioritisation of Catchment Scale River Restoration within Southeast Queensland (SEQ).   The work is part of a Queensland Government funded ‘proof of ...

Organic sum parameters for river monitoring

by LAR Process Analysers AG  (Nov. 17, 2008)

The purpose of river monitoring is to have an early warning system for chemical accidents with the consequence of water pollution through hazardous chemical substances. The real objective goes even further because the early warning system is intended for protecting the sensible drinking water resources. River monitoring stations have been ...

Microbiological pollution of surface water in the upper–middle basin of the Reconquista river (Argentina): 2010–2011 monitoring

by Inderscience Publishers  (May 22, 2013)

A microbiological monitoring was conducted on the water at six locations of the Reconquista river, a polluted peri–urban water body of Argentina. Samples were taken from surface water of three tributary streams in the dam outlet and 18 km downstream; samples from the sediments of one of the streams were also taken. For all samples the presence and ...

Hydrochemical evaluation of surface water quality and pollution source apportionment in the Luan River basin, China

by IWA Publishing  (Jan. 1, 2011)

In the context of rapid economic growth in China, hydrochemical characteristics of stream water quality are being influenced by a variety of natural and anthropogenic inputs. We determined 10 hydrochemical parameters of the surface water at 29 monitoring sites in the Luan River basin of northern China during 2007–2009. Water quality hydrochemistry ...

Field survey of pollutants discharged from different types of residential area in the Yamuna River Basin, India

by IWA Publishing  (Dec. 1, 2011)

The Ganges River, one of the most heavily populated and urbanized river basins in Asia, is polluted by increasing wastewater influent and water-borne diseases are caused in the metropolitan area. This study focused on the Yamuna River, a major tributary of the Ganges. We determined the pollutant load per unit of urban area classified by the income ...

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 ...

Modelling of point and diffuse pollution: application of the Moneris model in the Ipojuca river basin, Pernambuco State, Brazil

by IWA Publishing  (Jul. 19, 2013)

Emissions of pollutants and nutrients are causing several problems in aquatic ecosystems, and in general an excess of nutrients, specifically nitrogen and phosphorus, is responsible for the eutrophication process in water bodies. In most developed countries, more attention is given to diffuse pollution because problems with point pollution have ...

Modeling the effects of point and non-point source pollution on a diversion channel from Yellow River to an artificial lake in China

by IWA Publishing  (Jun. 12, 2015)

The Dragon lake diversion channel (DLDC) is the only river that recharges Dragon Lake, an artificial lake in China. This paper examines the main factors influencing water quality by investigating point source and non-point source pollutants along the main route. Based on the complicated system of rivers and desilting basins, a three-dimensional ...

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 ...

Characteristics of nitrogen and phosphorus removal by a surface-flow constructed wetland for polluted river water treatment

by IWA Publishing  (Mar. 27, 2015)

The characteristics of nitrogen (N) and phosphorus (P) removal were studied during the 2-year operation of a free water surface flow wetland of 900 m2 with hydraulic loading of 0.1 m/d to evaluate its potential to treat water from an urban stream polluted with municipal and industrial wastewater. Attention was focused on the removal of dissolved ...

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