scholarly journals Comparison of different extract methods on extractable nitrogen in sediments from an urban polluted river

2012 ◽  
Vol 24 (4) ◽  
pp. 541-545 ◽  
Author(s):  
XU Kuan ◽  
◽  
LIU Bo ◽  
WANG Guoxiang ◽  
ZHOU Feng ◽  
...  
Keyword(s):  
Polluted River ◽  
Extractable Nitrogen

Evaluation of Toxicity in Receiving Streams

1992 ◽  
Vol 26 (9-11) ◽  
pp. 2357-2360
Author(s):  
J. Zagorc-Koncan ◽  
M. Dular
Keyword(s):  
Dissolved Oxygen ◽  
Toxic Substances ◽  
Toxicity Evaluation ◽  
Copper Cyanide ◽  
Polluted River ◽  
Design Information ◽  
Point Of Entry ◽  
Receiving Stream ◽  
The Impact

A laboratory river model for the study of self-purification inhibition in a stream containing toxic substances is presented. It enables an engineering - technological prediction of the impact of toxic substances or wastewaters on dissolved oxygen (DO) profile in an organically polluted river downstream from the point of entry of toxic effluent thus providing rapidly and inexpensively significant design information to an environmental scientist or engineer. The method was applied to the toxicity evaluation of wastewaters from electroplating industry. The effects of copper, cyanide (representing two significant constituents of this type of wastewaters) and wastewater from electroplating industry on the biodegradation of organic municipal pollution in receiving stream were evaluated experimentally.

Nitrogen removal from polluted river water in a novel ditch–wetland–pond system

2013 ◽  
Vol 60 ◽  
pp. 135-139 ◽  
Author(s):  
Wenzhong Tang ◽  
Wenqiang Zhang ◽  
Yu Zhao ◽  
Yuanyue Wang ◽  
Baoqing Shan
Keyword(s):  
River Water ◽  
Nitrogen Removal ◽  
Polluted River ◽  
Pond System

scholarly journals Status of multielement in water of the river Buriganga, Bangladesh: Aquatic chemistry of metal ions in polluted river water

2021 ◽  
Vol 7 ◽  
pp. 99-115
Author(s):  
Aklima Nargis ◽  
Ahsan Habib ◽  
Harun-Or-Rashid ◽  
Halima Binte Harun ◽  
Md Shafiqul Islam Sarker ◽  
...  
Keyword(s):  
Metal Ions ◽  
River Water ◽  
Aquatic Chemistry ◽  
Polluted River

Large-scale hybrid accidental urban wetland for polluted river purification in northern China: Evidence and implications for urban river management

2021 ◽  
Vol 22 ◽  
pp. 101542 ◽  
Author(s):  
Mathieu Nsenga Kumwimba ◽  
Xinzhu Li ◽  
Wei wang ◽  
L.H.D.K.U. De Silva ◽  
Linlin Bao ◽  
...  
Keyword(s):  
Large Scale ◽  
Northern China ◽  
River Management ◽  
Urban River ◽  
Polluted River ◽  
Urban Wetland

Yeasts isolated from the South Saskatchewan, a polluted river

1970 ◽  
Vol 16 (11) ◽  
pp. 1051-1057 ◽  
Author(s):  
J. F. T. Spencer ◽  
P. A. J. Gorin ◽  
N. R. Gardner
Keyword(s):  
Magnetic Resonance ◽  
The South ◽  
Polluted River ◽  
Sewage System ◽  
Minimum Numbers ◽  
The City ◽  
Magnetic Resonance Spectra

Minimum numbers of yeasts isolated from the Saskatchewan River in the summers of 1964 and 1965 ranged from 400 to 500 cells/liter upstream from the city of Saskatoon, to 4600 cells/liter immediately downstream. In the summer of 1968, a period of extremely low water, the counts were 150 cells/liter upstream from the city and 30 000 cells/liter downstream.Proton magnetic resonance spectra of the mannose-containing polysaccharides from representative cultures of the different species isolated were used as an aid in classification. Most of the species were asporogenous, and included representatives of the genera Candida, Trichosporon, Rhodotorula, Torulopsis, and Cryptococcus. Some species of Pichia, Saccharomyces, and Debaryomyces were isolated. The yeasts were mostly introduced into the river with the effluent from the Saskatoon sewage system.

scholarly journals DIRECT TREATMENT OF POLLUTED RIVER WATER BY THE MULTI-SOIL-LAYERING METHOD

2003 ◽  
Vol 1 (1) ◽  
pp. 97-104 ◽  
Author(s):  
Tsuigiyuki Masunaga ◽  
Kuniaki Sato ◽  
Takayuki Zennami ◽  
Syunitsu Fujii ◽  
Toshiyuki Wakatsuki
Keyword(s):  
River Water ◽  
Polluted River ◽  
Direct Treatment ◽  
Soil Layering

scholarly journals A laboratory study to determine the use of polluted river sediment as a substrate for extensive green roofs

2018 ◽  
Vol 78 (11) ◽  
pp. 2247-2255 ◽  
Author(s):  
Wei Zhang ◽  
Xing Zhong ◽  
Wu Che ◽  
Huichao Sun ◽  
Hailong Zhang
Keyword(s):  
River Sediment ◽  
Peat Soil ◽  
River Sediments ◽  
Green Roof ◽  
Oxygen Demand ◽  
Green Roofs ◽  
Polluted River ◽  
Artificial Rainfall ◽  
Study Laboratory ◽  
Extensive Green Roofs

Abstract In this study, laboratory-scale green (e.g. living) roof platforms were established to assess the potential use of polluted river sediment in their substrate mixture. The mean runoff retention of the green roof platforms, which contained peat and/or river sediment, after 11 artificial rainfall events was >72%, significantly higher than traditional roofs. However, green roof platforms that had been filled with peat soil showed chemical oxygen demand (COD), total nitrogen (TN) and total phosphorus (TP) leaching. Green roofs that had used river sediment showed good leaching control for COD, TN and TP. The cumulative leaching masses from the green roofs contained 30% (COD), 42% (TN) and 47% (TP) as much as the total leaching mass from traditional roofs, and the Cu, Zn, Cd and Pb leaching risk from green roofs when river sediments are used as part of a substrate mixture was relatively low. Despite some nutrient leaching in the initial phase of runoff from the green roofs, river sediment has the potential to be used as a substrate for extensive green roofs.

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