Treatment of wastewater from flue gas desulphurization plants in the Netherlands
- KEMA Nederland B.V., Arnhem (Netherlands)
In the Netherlands, all coal fired boilers of power stations are equipped with a wet lime(stone)-gypsum flue gas desulphurization (FGD) installation in order to fulfill the emission demands for SO{sub 2}. These wet FGD installations produce a wastewater stream containing impurities like suspended solids and traces of heavy metals like As, Cd, Cr, Cu, Hg, Ni, Pb, Sb, Se and Za. As the target values stated by the licensing authorities are very stringent, most of these heavy metals and suspended solids have to be removed to very low concentration levels. Therefore, a very efficient treatment method, based on coprecipitation of heavy metal hydroxides and sulphides, which was developed by KEMA, has been installed at all, the coal fired power plants. This paper describes the operational experiences until now with these wastewater treatment installations at two coal fired power plants using sea-water for make-up and one using fresh water. The following aspects will be discussed in more detail: reliability of the wastewater treatment processes both with respect to removal efficiency of heavy metals and suspended solids and plant operation itself influence of a changing composition of the wastewater on the performance of these wastewater treatment installations. Finally, also the impact of co-firing of the sludge produced in these wastewater treatment installations will be discussed.
- Research Organization:
- Electric Power Research Inst. (EPRI), Palo Alto, CA (United States)
- OSTI ID:
- 121507
- Report Number(s):
- EPRI-TR-105258-Vol.4; CONF-950332-Vol.4; TRN: 95:007570-0005
- Resource Relation:
- Conference: 15. EPRI-EPA-DOE SO/sub 2/ control symposium, Miami Beach, FL (United States), 28-31 Mar 1995; Other Information: PBD: Jun 1995; Related Information: Is Part Of Proceedings: 1995 SO{sub 2} control symposium. Volume 4, Sessions 8a, 8b; PB: 250 p.
- Country of Publication:
- United States
- Language:
- English
Similar Records
Treatment of FGD plant wastewater by enhancing microfiltration fluxes. Final report, September 1, 1992--December 31, 1993
The FGD system at Atlantic Electric`s B.L. England Station - design features and project update