Navigation Links
Value-added sulfur scrubbing
Date:10/21/2010

Power plants that burn fossil fuels remain the main source of electricity generation across the globe. Modern power plants have scrubbers to remove sulfur compounds from their flue gases, which has helped reduce the problem of acid rain. Now, researchers in India have devised a way to convert the waste material produced by the scrubbing process into value-added products. They describe details in the International Journal of Environment and Pollution.

Fossil fuels contain sulfur compounds that are released as sulfur dioxide during combustion. As such, flue gas desulfurisation (FGD) has become mandatory in most of the developed world. There are numerous methods, but most are based on wet limestone and caustic scrubbing. Wet limestone scrubbing generate s large quantities of solid gypsum waste, while wet caustic scrubbing generates alkaline waste containing aqueous mixture of bisulfite, sulfite and sulfate. Sulfate can be removed from water by desalination processes such as reverse osmosis and ion exchange, but these are expensive.

Rima Biswas of the National Environmental Engineering Research Institute (NEERI), in Nagpur, in India, and colleagues have designed a chemo-biological approach for treating the sulfate-rich effluent generated during wet scrubbing of flue gas emissions from fossil fuel fired power plants. The technique involves microbial sulfate reduction using an anaerobic up-flow packed bed bioreactor containing microbes, with ethanol as the carbon source essential for microbial growth.

The team found that more than 90% of the total equivalent sulfate present in the effluent was reduced to sulfide at a rate of up to 3 kilograms per day per cubic meter of sulfate residue. In this form the waste can be easily converted into elemental sulfur for industrial use or into metal sulfide nanoparticles for research.


'/>"/>

Contact: Rima A. Biswas
reemabiswas03@gmail.com
91-937-076-8460
Inderscience Publishers
Source:Eurekalert

Page: 1

Related biology news :

1. New book rethinks the relationship between sulfur and crops
2. Sulfurous ping-pong in the urinary tract
3. Scrubbing sulfur
4. Grape news: New treatment combination safe alternative to sulfur dioxide
5. Scrubbing chemical-contaminated buildings clean with lasers
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/2/2016)... Checkpoint Inhibitors for Cancer – Explore ... you interested in the future of cancer drugs? ... Visiongain,s report gives those predictions to 2026 at ... Avoid falling behind in data or losing ... those emerging cancer therapies can achieve. There you ...
(Date:2/1/2016)... , Feb. 1, 2016  Today, the first day ... announced plans to develop a first of its kind ... of IBM Watson. In the first application of ... (NYSE: IBM ), and Welltok will create a ... assessments with cognitive analytics, delivered on Welltok,s health optimization ...
(Date:1/25/2016)... , Jan. 25, 2016  Glencoe Software, the ... pharma and publication industries, will provide the data management ... Centre (NPSC). ... Phenotypic analysis measures ... whole organisms, allowing comparisons between states such as health ...
Breaking Biology News(10 mins):
(Date:2/10/2016)... Inc. (NYSE: BIOA ), a leader in renewable ... Ltd., its partner in the Sarnia ... CDN$25 million in the joint venture for 10% of ...  Mitsui will also play a stronger role in the ... , providing dedicated resources alongside BioAmber,s commercial team. ...
(Date:2/10/2016)... New York, New York (PRWEB) , ... ... ... Regeneron Pharmaceuticals Inc. (NASDAQ: REGN) today announced that it has joined the ... vaccines and immunotherapies for infectious diseases and cancer. , The Human ...
(Date:2/10/2016)... MO (PRWEB) , ... February 10, 2016 , ... ... will attend the International Society of Pharmaceutical Engineering (ISPE) Rocky Mountain Chapter 21st ... ISPE is expecting to fill more than 100 tables for its annual event, ...
(Date:2/10/2016)... ... February 10, 2016 , ... Global Stem Cells ... with Singapore-based Global Stem Cells Network (GSCN) and its affiliate Global Medical ... the latest adipose and bone marrow therapies. , Through the new collaboration, ...
Breaking Biology Technology: