Research on desulfurization wastewater evaporation: Present and future perspectives

Ma Shuangchen, Chai Jin, Chen Gongda, Yu Weijing and Zhu Sijie

Renewable and Sustainable Energy Reviews, 2016, vol. 58, issue C, 1143-1151

Abstract: Nowadays wastewater zero emission in power plants has attracted great attention in the world. This paper describes the recent progress in the cooling of flue gas by the evaporation of desulfurization wastewater. The desulfurization wastewater slurry is mixed with pressurized compression air, and then sprayed into flue gas duct between the air pre-heater and electro-static precipitator or separated evaporation tower, to evaporate the wastewater instantaneously using the exhausted heat of flue gas. This process can reduce water consumption in flue gas desulfurization, cut down the traditional disposing expense consumed in desulfurization wastewater treatment, and reduce gypsum rain discharged from stack etc. This paper summarizes the negative impacts due to the omission of gas–gas heater (GGH) and the difficulties in desulfurization wastewater treatment in current power plants, and also points out that desulfurization wastewater evaporation technology is an important way to achieve zero emission of desulfurization wastewater or other high salt concentration wastewater and solve the problems related to omitting GGH. The instant regulation and control mechanism involved in desulfurization wastewater, migration and transformation rules of desulfurization wastewater and other key problems to be solved are also mentioned respectively. Hopefully, through multidisciplinary researches, evaporation treatment technology for desulfurization wastewater or other high salt concentration wastewater in coal-fired power plants will become mature and be applied widely in near future.

Keywords: Desulfurization wastewater; Evaporation; Gas–gas heater; Flue gas desulfurization; Water saving; Progress (search for similar items in EconPapers)
Date: 2016
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S1364032115016354
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:rensus:v:58:y:2016:i:c:p:1143-1151

Ordering information: This journal article can be ordered from
http://www.elsevier.com/wps/find/journaldescription.cws_home/600126/bibliographic
http://www.elsevier. ... 600126/bibliographic

DOI: 10.1016/j.rser.2015.12.252

Access Statistics for this article

Renewable and Sustainable Energy Reviews is currently edited by L. Kazmerski

More articles in Renewable and Sustainable Energy Reviews from Elsevier
Bibliographic data for series maintained by Catherine Liu ().