Dumping areas should be lined by adequate liner on the basis of hydrological & geotechnical status of the area.Now days it has been made compulsory by MoEF during EC appraisal of thermal power plants.
Regards
Ratnakar Pandey
Have you idea about any adequate method to minimize the leaching of heavy metals from coal fly ash…
Dumping areas should be lined by adequate liner on the basis of hydrological & geotechnical status of the area.Now days it has been made compulsory by MoEF during EC appraisal of thermal power plants.
easy said than done. The problem of fly ash from thermal power stations has resulted in major interventions at the govt level. The National Fly Ash Mission has attempted to use fly ash in different applications that could possibly immobilize the heavy metals. One could also fall back on reserch done in the field of liquid liquid extraction for recovery of the heavy metals.
However as of day, besides using plantation, the only other way to immobolize the metals is to use this substrate at alternate places.
To combate with leachate problem, one should try phytoremediation plants/trees like Acacia sps. is the best to absord heavy metals from lands and many more.
Sir, leachate can be managed by plantation in various compositions, using lost fo climbers, bushes like impomoe which is already seen in the picture. But it can be improoved. A good and dense composition of plants can reduce the leachate problem to a surprsing level...
Replies
Thankyou Pandey ji
Ratnakar Pandey said:
Dear RK,
Dumping areas should be lined by adequate liner on the basis of hydrological & geotechnical status of the area.Now days it has been made compulsory by MoEF during EC appraisal of thermal power plants.
Regards
Ratnakar Pandey
easy said than done. The problem of fly ash from thermal power stations has resulted in major interventions at the govt level. The National Fly Ash Mission has attempted to use fly ash in different applications that could possibly immobilize the heavy metals. One could also fall back on reserch done in the field of liquid liquid extraction for recovery of the heavy metals.
However as of day, besides using plantation, the only other way to immobolize the metals is to use this substrate at alternate places.
@ Viswanathan- Thanx sir for providing me such a good report on leaching study
regards
Krishna Viswanathan said:
Regards
Dr Hitesh
http://www.epa.gov/nrmrl/pubs/600r09151/600r09151.pdf
The references in the above document are a good place to start. A lot depends on the scale of your operation.
Sir, leachate can be managed by plantation in various compositions, using lost fo climbers, bushes like impomoe which is already seen in the picture. But it can be improoved. A good and dense composition of plants can reduce the leachate problem to a surprsing level...