Navigation Links
Can Hungary's red sludge be made less toxic with carbon?
Date:10/13/2010

BLOOMINGTON, Ind. -- The red, metal-laden sludge that escaped a containment pond in Hungary last week could be made less toxic with the help of carbon sequestration, says an Indiana University Bloomington geologist who has a patent pending on the technique.

The bauxite residue now covers 40 square kilometers south of the Danube River, and has caused the deaths of eight Hungarians and injured at least 150. The residue also has caused the extinction of life in a local river and as yet unknown environmental damage elsewhere. While human deaths in the wake of the disaster may have been strictly a result of the containment failure, injuries have mostly been attributed to the chemical properties of the sludge, whose high pH (between 11 and 13) can quickly damage and kill living cells. Bauxite residue is between 10,000 and 1,000,000 times more basic than pure water, which has a pH around 7.

"We propose one way to reduce the pH of bauxite residue is to mix it with another kind of industrial waste -- oil-field brine, which is a by-product of oil and gas production -- and then carbon dioxide," said IU Bloomington geologist Chen Zhu, who submitted a U.S. Department of Energy patent application in 2007 describing the technique.

The water-based brine provides the medium for carbon dioxide to dissolve. Once dissolved, the carbon dioxide can chemically react with water to form carbonic acid. The carbonic acid counteracts some of the red mud's alkalinity, and what's left -- the negatively charged carbonate -- can serve as a partner for positively charged metal ions, such as iron, calcium and magnesium. Some of these salts spontaneously precipitate out of solution, which is a good thing, since the metals in these salts will longer will be free to interact with, say, living matter.

Bauxite residue, sometimes called "red sludge" or the more euphemistic "red mud," is the waste created by industries that produce aluminum. At present, the resi
'/>"/>

Contact: David Bricker
brickerd@indiana.edu
812-856-9035
Indiana University
Source:Eurekalert  

Page: 1 2

Related biology news :

1. University of Nevada, Reno, demonstrates successful sludge-to-power research
2. University of Nevada, Reno demonstrates successful sludge-to-power research
3. Biodiesel from sewage sludge within pennies a gallon of being competitive
4. Adding high doses of sludge to neutralize soil acidity not advisable
5. OHSU Toxicology Research Center issues public alert on popular hair salon treatment
6. A less toxic, more efficient dispersant is scientists goal
7. Pitt/Iowa team finds cellular structural molecule can be toxic: Makes pneumonia worse
8. New research aims to unravel how phosphorus pollution drives toxic algal blooms in the Great Lakes
9. Gulf oil dispersants unlikely to be endocrine disruptors and have relatively low cell toxicity
10. CCNY-led team develops non-toxic oil recovery agent
11. Evidence that nanoparticles in sunscreens could be toxic if accidentally eaten
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Can Hungary's red sludge be made less toxic with carbon?
(Date:12/22/2014)... , Dec. 22, 2014  NXT-ID, Inc. (NASDAQ: ... "Company"), a biometric authentication company focused on the growing ... entertainer and security consultant, Apollo Robbins for ... smart wallet.  Apollo Robbins ... 7 th , 2015, demonstrating some of his famous ...
(Date:12/22/2014)... , Dec. 22, 2014  The 2014 ... the biometrics industry as Acuity Market Intelligence reports ... may finally be open. Acuity forecasts that intensifying ... devices that incorporate biometrics will drive a global ... billion biometric devices by 2020.   ...
(Date:12/19/2014)... Dec. 18, 2014 Research and Markets ... "Micro Market Monitor: North America Perimeter Security Systems ... http://photos.prnewswire.com/prnh/20130307/600769 The North American ... CAGR of 3.6% from 2014 to 2019. Although the ... Canada is expected to grow ...
Breaking Biology News(10 mins):NXT-ID Hires Master Pickpocket and Security Consultant Apollo Robbins for Wocket Smart Wallet CES 2015 Debut 2NXT-ID Hires Master Pickpocket and Security Consultant Apollo Robbins for Wocket Smart Wallet CES 2015 Debut 3NXT-ID Hires Master Pickpocket and Security Consultant Apollo Robbins for Wocket Smart Wallet CES 2015 Debut 4First Season of Holiday Shopping with Mobile Biometric Payments Wraps Up With a Present for Biometrics Industry: A Rosy Forecast for More Than 2 Billion Users of 4.8 Billion Mobile Biometric Devices by 2020 2Micro Market Monitor: North America Perimeter Security Systems Market (Intrusion Detection Sensor, Video Surveillance, Communication/Alarm and Notification, Access Control System) 2Micro Market Monitor: North America Perimeter Security Systems Market (Intrusion Detection Sensor, Video Surveillance, Communication/Alarm and Notification, Access Control System) 3
... 13 May 2009: The University of Liverpool has been awarded ... the North of England. The funding comprising ... from the Northwest Regional Development Agency (NWDA) is part ... the UK research community,s access to cutting-edge equipment for DNA ...
... of their drinking water for granted, that ordinary tap ... Katzir of Tel Aviv University,s School of Physics and ... to industrial spillage, natural disaster or sabotage, the physicist ... of a building or community,s water supply in real ...
... team of Princeton University scientists may have found a ... virus. Though theoretical, the work points to ... appreciated aspect of the interaction between a virus and ... infection. By manipulating this multi-stage interactive process -- known ...
Cached Biology News:University of Liverpool awarded $3.3 million for genomics hub 2Monitoring water through a snake's eyes 2Monitoring water through a snake's eyes 3Princeton team's analysis of flu virus could lead to better vaccines 2Princeton team's analysis of flu virus could lead to better vaccines 3
(Date:12/24/2014)... LONDON , December 23, 2014 ... Review Algeria , out today and available for free ... the actors driving change and growth in the sector today. ... has scored notable successes has been in developing a homegrown ... 70 percent local production still remains some way off. A ...
(Date:12/22/2014)... 22, 2014 The Center for ... of technical training across the life sciences industry, has ... (SCDM) to provide the organization's members with discounted ... access to the more than 350 sessions across 80 ... 10% off when registering for a public course ...
(Date:12/22/2014)... GenomeDx Biosciences today announced that a new ... genomic test for prostate cancer, was able to predict ... radical prostatectomy without adjuvant therapy. Although rapid metastasis in ... tumor genomics to identify these men who have a ... advance. The study has been published online by ...
(Date:12/22/2014)... TENN (PRWEB) December 22, 2014 Fertility ... Donor Egg Bank USA , a network of ... country. Through this partnership, patients have fast access to ... in vitro fertilization, IVF . Fertility Associates of Memphis ... offer this fertility treatment option. , Dr. William ...
Breaking Biology Technology:PharmaBoardroom Releases New Algeria Pharmaceuticals Report 2PharmaBoardroom Releases New Algeria Pharmaceuticals Report 3CfPIE Announces Partnership with the Society for Clinical Data Management 2CfPIE Announces Partnership with the Society for Clinical Data Management 3Study Published in European Urology Shows that the Decipher Prostate Cancer Classifier is Predictive of Rapid Metastasis in High-Risk Men who have had Prostate Surgery 2Study Published in European Urology Shows that the Decipher Prostate Cancer Classifier is Predictive of Rapid Metastasis in High-Risk Men who have had Prostate Surgery 3Fertility Associates of Memphis Announces Partnership with Donor Egg Bank USA 2Fertility Associates of Memphis Announces Partnership with Donor Egg Bank USA 3
... Winston-Salem, N.C. -- Wake Forest University has received the ... double the energy production of today,s flat cells at a ... high price to be green," said David Carroll, Ph.D., the ... where the fiber cell was developed. "This device can make ...
... ... the AOL News series, “The Nanotech Gamble,” with advice for nano-product companies on how ... ... series of AOL News articles questioning the oversight of nanotechnology product safety ( http://www.aolnews.com/category/nanotech/ ...
... ... role in Merrimack,s acquisition of Hermes Biosciences and partnership with sanofi-aventis , ... Cambridge, MA (PRWEB) April 7, ... and development of novel treatments for cancer and inflammation, today announced that William Sullivan ...
Cached Biology Technology:Wake Forest earns patent for efficient, inexpensive fiber-based solar cells 2nanoTox COO Greg King Advises Nanotech Companies to View Safety Concerns as an Opportunity to Gain Consumer Trust 2nanoTox COO Greg King Advises Nanotech Companies to View Safety Concerns as an Opportunity to Gain Consumer Trust 3Merrimack Pharmaceuticals Promotes William Sullivan to Vice President of Finance 2
... for hunting and analyzing the rare ... EST sequencing projects, microarrays, functional screenings ... well suited for the normalization of ... though, is specially developed for normalization ...
... has 20 years of expertise in the ... still offers the most powerful systems on ... to 40 000 in-microplate tests requiring incubation ... of different modules (such as worktable shaker ...
... JMP 6 delivers enhanced statistics and ... and quality improvement managers. As an ... JMP 6 simplifies statistics for novice ... needed by experts. It offers a ...
Glycerol-based mounting medium for immunofluorescence microscopy. Formulated to retard photobleaching of fluorochromes such as fluorescein and rhodamine. Product can also be used as a diluent for fl...
Biology Products: