Environmental Impact Assessment of Lignite Fly Ash and Its Utilization Products as Recycled Hazardous Wastes on Surface and Ground Water Quality

2005 ◽  
pp. 61-110 ◽  
Author(s):  
Predrag S. Polic ◽  
Marina R. Ilic ◽  
Aleksandar R. Popovic
Keyword(s):  
Water Quality ◽  
Fly Ash ◽  
Environmental Impact ◽  
Impact Assessment ◽  
Ground Water ◽  
Environmental Impact Assessment ◽  
Hazardous Wastes ◽  
Ground Water Quality ◽  
Lignite Fly Ash

Random number generator or sewer water quality model?

2006 ◽  
Vol 54 (6-7) ◽  
pp. 387-394 ◽  
Author(s):  
P. Willems
Keyword(s):  
Water Quality ◽  
Environmental Impact ◽  
Impact Assessment ◽  
Environmental Impact Assessment ◽  
Random Number Generator ◽  
River System ◽  
Assessment Model ◽  
Integrated Modelling ◽  
Water Quality Modelling ◽  
Quality Model

Integrated urban drainage modelling and environmental impact assessment require sewer emission models to be linked with submodels for treatment infrastructure and receiving rivers. The uncertainty in current water quality modelling is, however, huge, and environmental impact assessment looses more and more credibility. Based on an integrated modelling case for a combined sewer – WWTP – river system, it is shown in the paper that the integrated model does not produce more accurate results in comparison with the random simulation of emission concentrations from a frequency distribution. This should, however, not pose a serious problem as in most applications of impact assessment, model results are not needed in real time but in statistical terms. Further investigation makes clear that detail/sophistication in water quality modelling is not so important, but that more focus has to be given to long-term simulations, the use of parsimonious models and model validation based on concentration frequencies.

Environmental impact assessment of fly ash and silica fume based geopolymer concrete

2020 ◽  
Vol 254 ◽  
pp. 120147 ◽  
Author(s):  
Rishabh Bajpai ◽  
Kailash Choudhary ◽  
Anshuman Srivastava ◽  
Kuldip Singh Sangwan ◽  
Manpreet Singh
Keyword(s):  
Fly Ash ◽  
Environmental Impact ◽  
Impact Assessment ◽  
Silica Fume ◽  
Environmental Impact Assessment ◽  
Geopolymer Concrete
Sign in / Sign up

Export Citation Format

Share Document