Navigation Links
Onion soaks up heavy metal
Date:12/10/2012

Onion and garlic waste from the food industry could be used to mop up hazardous heavy metals, including arsenic, cadmium, iron, lead, mercury and tin in contaminated materials, according to a research paper published in the International Journal of Environment and Pollution.

Biotechnologists Rahul Negi, Gouri Satpathy, Yogesh Tyagi and Rajinder Gupta of the GGS Indraprastha University in Delhi, India, explain how waste from the processing and canning of onion (Allium cepa L.) and garlic (Allium sativum L.) could be used as an alternative remediation material for removing toxic elements from contaminated materials including industrial effluent. The team has studies the influence of acidity or alkalinity, contact time, temperature and concentration of the different materials present to optimize conditions for making a biological heavy metal filter for industrial-scale decontamination.

They have found that at 50 Celsius (122 Fahrenheit), the efficiency of the clean-up process is largely dependent on pH (acidity or alkalinity) and equilibration time usually occurs within half an hour; a pH of 5 was optimal. They demonstrated the maximum extraction was achievable for lead, one of the most troublesome metallic environmental pollutants. They could extract more than 10 milligrams per gram of Allium material from a test solution containing 5 grams per liter of mixed metal ion solution, amounting to recovery efficiency of more than 70%. The absorbed metals can be released into a collecting vessel using nitric acid and the biomass reused.

The team experimented with Allium biomass to demonstrated effective removal of heavy metals from both simulated and actual industrial effluents. "The technique appears to be industrially applicable and viable," they suggest. "This may provide an affordable, environmental friendly and low maintenance technology for small and medium scale industries in developing countries," the
'/>"/>

Contact: Albert Ang
press@inderscience.com
Inderscience Publishers
Source:Eurekalert

Page: 1 2

Related biology news :

1. Nano-velcro clasps heavy metal molecules in its grips
2. Earthworms soak up heavy metal
3. Handful of heavyweight trees per acre are forest champs
4. Kinesiology team gets $975,000 Defense grant to study effects of heavy loads on soldiers
5. SETAC announces Chris Lee Award for metals research winner, Kevin Brix
6. Sweet new approach discovered to help produce metal casting parts, reduce toxicity
7. Measuring mercury levels: Nano-velcro detects water-borne toxic metals
8. Increase in metal concentrations in Rocky Mountain watershed tied to warming temperatures
9. A new avenue to better medicines: Metal-peptide complexes
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:11/3/2014)... Australia report that low birth weight and preterm birth ... replacements in adulthood. Findings published in the American College ... , indicate that low birth weight and pre-term babies ... to OA as adults. , According to the ... are diagnosed with clinical OA. Symptoms of OA range ...
(Date:11/2/2014)... November 2014)—In support of a bold quest to rid ... Gates Foundation today announced an award of US$156 million ... (MVI) in building new vaccines that will interrupt the ... "accelerating to zero" agenda. Such vaccines would ensure that ... called an "immunological bed net." , This approach ...
(Date:11/2/2014)... walk into a bar and bump into a biologist . ... to some late-night nerd sketch, researchers have taken this premise ... biology, namely, finding meaning in the rising oceans of genomic ... cancer mutations that genome-wide studies are publishing at a dizzying ... parse the signal from the noise (and there is no ...
Breaking Biology News(10 mins):Preterm, low birth-weight babies may need new hips in adulthood 2New malaria vaccines to prevent infection and block transmission get a shot in the arm 2New malaria vaccines to prevent infection and block transmission get a shot in the arm 3New malaria vaccines to prevent infection and block transmission get a shot in the arm 4Mutant models 2Mutant models 3Mutant models 4
... of some insects or the deep black of a ... the nanostructure of a fly,s eyes, according to Penn ... and inexpensively copy biological surface structures. "Only a ... says Akhlesh Lakhtakia, the Charles Godfrey Binder (Endowed) Professor ...
... size guidelines for all-terrain vehicles (ATV) are inadequate to ... results from a study by researchers at the University ... found that national ATV size guidelines for youth ... frame or engine size do not assure a ...
... of sedentary and overweight older people placed on a four-month ... more fat, compared to older sedentary people who were placed ... study also showed that when older people diet without exercising, ... said senior researcher Bret H. Goodpaster. When they combined weight ...
Cached Biology News:Coating copies microscopic biological surfaces 2Coating copies microscopic biological surfaces 3Study finds ATV guidelines inadequate 2Older people who diet without exercising lose valuable muscle mass 2
(Date:11/21/2014)... SAN DIEGO , Nov. 20, 2014 /PRNewswire/ ... patient has been dosed in its Phase 1 ... and cisplatin for the treatment of malignant pleural ...  Polaris Group is conducting clinical trials on ADI-PEG ... other agents, for the treatment of several other ...
(Date:11/18/2014)... , Nov. 18, 2014 Cord Blood Registry® ... of the 10th Annual World Stem Cell Summit, the largest ... The 2014 World Stem Cell Summit will be held December ... Texas . The World Stem ... of lifesaving cures and therapies, convening the most prominent figures ...
(Date:11/18/2014)... 2014 Athena Signature Series: Turning Cancer ‘Off’ ... Emerson, a professor in the Regulatory Biology Laboratory at the ... discovery points to an “off switch” for drug resistance in ... her local research is making a global impact in the ... then join host Cheryl K. Goodman, CEO of Social Global ...
(Date:11/18/2014)... 18, 2014 2014 Deep ... is professional and in-depth report on Polytetrahydrofuran ... information, including its definition, characterization, application, and ... This exploration covers the worldwide business investigation, ... examination covering macroeconomic environment & financial circumstance ...
Breaking Biology Technology:Polaris Group Announces Treatment of First Patient in Phase 1 Study of ADI-PEG 20 plus Pemetrexed and Cisplatin in Malignant Pleural Mesothelioma And Non-Squamous Non-Small Cell Lung Carcinoma 2Cord Blood Registry Sponsors 2014 World Stem Cell Summit 2Cord Blood Registry Sponsors 2014 World Stem Cell Summit 3PTMEG Market: 2019 Global Polytetrahydrofuran Industry Development Trends & Analysis Now at DeepResearchReports.com 2PTMEG Market: 2019 Global Polytetrahydrofuran Industry Development Trends & Analysis Now at DeepResearchReports.com 3
... Empowers Users to Take Full Control of the ... to Results Disclosure - while Adhering to Changing ... to Manage Their Clinical Trial Registration and Results ... ( http://www.intrasphere.com ), a ...
... , - European Operating ... Healthcare Educational Program, Accepted,for Accreditation , ... healthcare barrier,protective solutions, has announced it has taken a ... the area of continued,education. , ...
... developed an entirely new method for starting chemical reactions. ... control catalytic activity one of the most fundamental ... reactions with mechanical force. This discovery paves the way ... influence of mechanical tension. The results of their research ...
Cached Biology Technology:Intrasphere Technologies Releases Version 1.5 of Its PharmaCM Clinical Trial Registration Solution Powered by Microsoft 2Intrasphere Technologies Releases Version 1.5 of Its PharmaCM Clinical Trial Registration Solution Powered by Microsoft 3Intrasphere Technologies Releases Version 1.5 of Its PharmaCM Clinical Trial Registration Solution Powered by Microsoft 4Ansell Healthcare Espresses Firm Commitment to Support Continued Education of Healthcare Professionals Worldwide 2Ansell Healthcare Espresses Firm Commitment to Support Continued Education of Healthcare Professionals Worldwide 3Ansell Healthcare Espresses Firm Commitment to Support Continued Education of Healthcare Professionals Worldwide 4A molecular ripcord for chemical reactions 2
Sf9 cells derived from Spodoptera frugiperda ovarian cells (Sf21 cells) are commonly used to isolate and propagate recombinant AcMNPV viral stocks and to produce recombinant proteins....
Functionally tested for consistent G-banding of chromosomes....
... Silver Staining Kit is uniquely formulated ... with minimal protein modification for optimal ... problems associated with traditional silver stains ... because the reagents used do not ...
...
Biology Products: