Waste water treatment plant mud to reduce CO2 emissions in cement factoriesJune 24th, 2009 - 3:19 pm ICT by ANI
Washington, June 24 (ANI): In a new research, scientists have shown that waste water treatment plant mud can be used as a partial alternative fuel to enable cement factories to reduce their CO2 emissions.
The research was carried out by scientists from the Rovira i Virgili University (URV) in Catalonia, an autonomous community in northeast Spain.
The scientists have carried out the first study into this method at a cement plant in Vallcarca (Catalonia), which has been producing cement for more than 100 years.
They confirm that it is “the best option for getting rid of mud that would have had to be dumped elsewhere, while also powering the plant”.
“As this mud is already waste, burning it does not enter into the atmospheric CO2 emissions assigned to each country under the Kyoto Protocol,” said Jose Luis Domingo, lead author of the study and director of the Toxicology and Environmental Health Laboratory at the URV.
This would enable plants producing cement, one of the most contaminating industries in terms of CO2 as well as emissions of dioxins, furans and heavy metals, to consume energy in a more environmentally friendly way.
Up to 20 percent of the fossil fuel energy used at the Catalan plant has now been substituted for the fuel from wastewater treatment plant mud.
From an economic point of view, the scientists will not say that cement plants could increase their profits by using this method, but “they will not have to pay anything to exceed their agreed emissions,” the researcher points out.
The economic benefits of this system also depend on the price of fuel.
One of the most important issues for the URV scientists is the reduction in environmental impact, and consequently the health risks for people living near the plants.
The experiment with the mud has led to a 140,000 tonne reduction in CO2 emissions between 2003 and 2006, and will have limited the potential deaths from exposure to chemical pollutants.
In addition, the study shows that using this green fuel would reduce the cancer rate by 4.56 per million inhabitants. (ANI)
- Stripping air of CO2 may become unavoidable - Jul 25, 2012
- Saline aquifers can store century's worth of CO2 emissions - Mar 22, 2012
- Global CO2 emissions continue to soar - Jul 20, 2012
- Novel biosensor can detect typhoid bacteria instantly - Sep 09, 2009
- Qantas planning 'green' planes that will fly using 'rubbish' as fuel - Jan 04, 2011
- Capsule coffee 'contains high levels of carcinogenic substance' - Apr 14, 2011
- Super cooling coal smoke can slash noxious emissions - Aug 28, 2012
- Low-carbon technology can't fix global warming - Feb 16, 2012
- Banned pesticide found in human milk - Sep 14, 2011
- Europe's largest bat inhabited northeastern Spain more than 10,000 years ago - Oct 30, 2009
- Mexican scientists develop eco-friendly cement - Mar 05, 2011
- Eating nuts elevates mood, lower heart disease risks - Nov 06, 2011
- Oceans absorbing half of greenhouse emission - Aug 02, 2012
- Rivers could provide energy for half billion people - Apr 19, 2012
- Hybrid and natural gas-fuelled cars greener than those running on gasoline - Sep 15, 2010
Tags: alternative fuel, autonomous community, cement factories, cement plant, cement plants, co2 emissions, dioxins, economic point, environmental health laboratory, fossil fuel energy, furans, heavy metals, kyoto protocol, research scientists, rovira, urv, waste water treatment, waste water treatment plant, wastewater treatment plant, water treatment plant