The regulation and impact of eight Australian coal mine waste water discharges on downstream river water quality: a regional comparison of active versus closed mines

2019 ◽  
Vol 34 (3) ◽  
pp. 350-363
Author(s):  
Nakia Belmer ◽  
Ian A. Wright
Keyword(s):  
Waste Water ◽  
Water Quality ◽  
River Water ◽  
Coal Mine ◽  
Mine Waste ◽  
River Water Quality ◽  
Regional Comparison ◽  
Coal Mine Waste ◽  
Australian Coal

Automatic Monitoring of River Water Quality

1984 ◽  
Vol 16 (5-7) ◽  
pp. 289-294 ◽  
Author(s):  
T Kohonen
Keyword(s):  
Waste Water ◽  
Water Quality ◽  
River Water ◽  
Continuous Monitoring ◽  
Waste Water Treatment ◽  
Automatic Monitoring ◽  
Water Quality Monitoring ◽  
River Water Quality ◽  
National Board ◽  
Near Future

Since 1972 the Finnish National Board of Waters has taken an active part in development of the automatic water quality monitoring. Eleven automatic stations liave been used minly for continuous monitoring of river water quality. The parameters used; temperature, pH, conductivity, DO and turbidity, are only the indicators about the change in loading. Automatic monitoring has in several cases revealed previously undetected variations in water quality. Continuous monitoring has produced useful information about the proportional magnitude and durability of variations in water quality. The abundance of data rakes the use of statistical methods possible for determining optimal sampling frequencies. In the near future new parameters can be used for controlling contents and thus also loadings. Then the automatic monitoring should be broadened to waste water treatment plants and to processes of factories. In that case it should be possible already to prevent waste water discharges before the watercourse.

Klamath River Water Quality and Acoustic Doppler Current Profiler Data from Link River Dam to Keno Dam, 2007

2008 ◽  
Author(s):  
Annett B. Sullivan ◽  
Michael L. Deas ◽  
Jessica Asbill ◽  
Julie D. Kirshtein ◽  
Kenna D. Butler ◽  
...  
Keyword(s):  
Water Quality ◽  
River Water ◽  
Acoustic Doppler Current Profiler ◽  
River Water Quality ◽  
Klamath River ◽  
Current Profiler ◽  
Profiler Data

MODELING THE ORGANIC REMOVAL AND OXYGEN CONSUMPTION BY BIOFILMS IN AN OPEN-CHANNEL FLOW

1994 ◽  
Vol 30 (2) ◽  
pp. 53-61 ◽  
Author(s):  
Shiyu Li ◽  
Guang Hao Chen
Keyword(s):  
Water Quality ◽  
Oxygen Consumption ◽  
River Water ◽  
Channel Flow ◽  
Diffusion Layer ◽  
Open Channel ◽  
Open Channel Flow ◽  
River Water Quality ◽  
Monod Kinetics ◽  
Organic Removal

A mathematical model is proposed to predict the removal of dissolved organic substances and the consumption of dissolved oxygen by attached biofilms in an open-channel flow. The model combines the biofilm equations with the conventional Streeter–Phelps type equations of river water quality by considering the mass transfer of organics and oxygen in the river water through the diffusion layer into the biofilm. It is assumed that the diffusion and reaction within the biofilm are of steady-state, and follow Monod kinetics. The model is solved numerically with a trial-and-error method. The simulation results of the model for an ideal case of river flow and biofilm show that the organic removal rate and oxygen consumption rate caused by the biofilm are greater than that by suspended biomass. The effects of diffusion layer thickness, flow velocity, and biofilm thickness on the change of river water quality are discussed.

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