Navigation Links
Filter developed by VTT helps recover 80 percent of gold in mobile phone scrap
Date:4/10/2014

Mobile phone scrap can contain precious metals, such as gold and copper. VTT Technical Research Centre of Finland has developed a biological filter made of mushroom mycelium mats enabling recovery of as much as 80% of the gold in electronic scrap. Extraction of copper from circuit board waste, on the other hand, can be enhanced significantly by flotation the crushed and sieved material.

Although research into the biological methods is active, these are still rarely used in metal recovery chains. In a European "Value from Waste" project, VTT developed both biological and mechanical pre-treatment methods for more efficient recovery of precious metals from electronic waste. Other methods developed by researchers included recovery of gold from dissolved materials by biosorption and extraction, using as few harmful chemicals as possible.

Fungi catch gold and filter out impurities

VTT has developed a method that harnesses biosorbents, such as fungal and algae biomass, for the recovery of precious metals converted to a solution. In VTT tests, more than 80% of the gold in the solution adhered to the biomass, compared with only 1020% of the harmful process chemicals.

The uniqueness of the method lies in the structure of the biomass. Different filament structures can be formed, for example, into biological filters, which makes further industrial processing of precious metals easier.

Gold also separates well in liquid-liquid extraction

The project developed a method with high extraction capacity for gold recovery, using the newest environmentally-friendly extraction reagents. In VTT experiments, it was possible to recover more than 90% of the metal solution dissolved from a circuit board with the help of functional ionic liquid. The method facilitates extraction of desired components from impurities.

Recovering copper from circuit boards by flotation

The new pre-treatment method
'/>"/>

Contact: Olli Salmi
olli.salmi@vtt.fi
358-207-225-216
VTT Technical Research Centre of Finland
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Nano-paper filter removes viruses
2. Special air filter blocks small particles called UFPs from getting inside cars
3. Living biofilters could reduce greenhouse gas emissions
4. Solar-powered nanofilters pump in antibiotics to clean contaminated water
5. Medical societies to launch large-scale study on vein filter use
6. Synthetic biofilter wins through to the top Sweet 16 in Boston
7. A brain filter for clear information transmission
8. Innovative solutions for lab-automation developed by Bioprocess Engineers from Dresden
9. Ancient food webs developed modern structure soon after mass extinction
10. The basis of a new bioinsecticide is developed to control a pest of banana plantations
11. Caltech-developed method for delivering HIV-fighting antibodies proven even more promising
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/24/2015)... 24, 2015 The consulting company Frost ... biometrics manufacturer DERMALOG and its customized solutions and products for ... Company of the Year Award". DERMALOG is particularly successful with ...   -Cross reference: Picture is available at AP ... On Thursday evening, in South Africa,s ...
(Date:8/20/2015)... , Aug. 20, 2015 The ... consumers that are active and healthy. However, wearable ... the hospital environment to help improve diagnostic capabilities ... video from the Wearable Technologies Conference 2015 ... new applications for wearables in healthcare.    ...
(Date:8/20/2015)... NXT-ID, Inc. (NASDAQ: NXTD ) ("NXT-ID" ... the growing mobile commerce market and creator of the ... Card Alliance and the EMV Migration Forum.  ... Card Alliance Latin America (SCALA) Chapter provides NXT-ID, Inc. ... leaders promoting adoption of smart card technology. ...
Breaking Biology News(10 mins):Frost & Sullivan Honors DERMALOG with Biometrics Prize for Achievements in Africa 2Frost & Sullivan Honors DERMALOG with Biometrics Prize for Achievements in Africa 3Leaf Healthcare Releases Video from Wearable Technology Conference on New Applications for Wearables in the Hospital Environment 2Leaf Healthcare Releases Video from Wearable Technology Conference on New Applications for Wearables in the Hospital Environment 3NXT-ID, Inc. Joins Smart Card Alliance and EMV Migration Forum 2NXT-ID, Inc. Joins Smart Card Alliance and EMV Migration Forum 3NXT-ID, Inc. Joins Smart Card Alliance and EMV Migration Forum 4
... of ASU researchers led by Nongjian Tao and Peiming Zhang ... DNA mutations. , Their results, published in the journal Proceedings ... time, the possibility of directly identifying these mutations, or single ... of a single DNA molecule. , SNPs are buried ...
... Oregon State University have made a major discovery in basic ... in plant genetics or biotechnology. , The scientists have identified ... cell membranes, where it functions as a toxin to kill ... can penetrate cell wall barriers and disrupt plant cells, but ...
... antiretroviral therapy for HIV slashed in poorer countries. But a ... these complex treatments remains a stumbling block. , Now ... solution: a hand-held sensor that checks the health of a ... take a week to get the same results back from ...
Cached Biology News:ASU researchers 'wire' DNA to identify mutations 2ASU researchers 'wire' DNA to identify mutations 3Biologists discover new pathway into plant cells 2Biologists discover new pathway into plant cells 3Cheap, rapid hand-held check for HIV 2
(Date:8/27/2015)... -- HUYA Bioscience International (HUYA) today announced the sponsorship of ... HTLV-1, held this week at the University of Tokyo ... is to promote research on HTLV-1 and HTLV-1-associated diseases, ... research related to these fields to advance science, the ... to support this prestigious conference," said Mireille Gillings ...
(Date:8/27/2015)... ... August 27, 2015 , ... METTLER TOLEDO's web-based ... down the product choices to a manageable shortlist of bench and floor scales ... models that fit best with the customer’s industry and application. , Side-by-side ...
(Date:8/26/2015)... ... August 26, 2015 , ... MediVet Biologics, ... second US laboratory is to open in Manhattan, Kansas in early October, 2015. ... long-term growth of research and development through collaboration with researchers from Kansas State ...
(Date:8/26/2015)... ... August 26, 2015 , ... Lee Biosolutions, a global biotech ... manufacture of highly valued cardiac markers used in early detection of heart disease ... chemistry has led to the development and commercialization of important cardiac biomarkers used ...
Breaking Biology Technology:HUYA Bioscience International Sponsors Japan Society Of HTLV-1 Annual Meeting 2HUYA Bioscience International Sponsors Japan Society Of HTLV-1 Annual Meeting 3HUYA Bioscience International Sponsors Japan Society Of HTLV-1 Annual Meeting 4METTLER TOLEDO Updates Online Scale Selection Tool 2MediVet Biologics Animal Health Secures Additional Laboratory Facility in Manhattan, Kansas 2MediVet Biologics Animal Health Secures Additional Laboratory Facility in Manhattan, Kansas 3Lee Biosolutions Announces Increased Investment in the Development and Manufacturing of Biomarkers Used in Early Detection Of Heart Disease 2
... Innovator in Pharmaceutical Thin Film,Technology -, WARREN, ... delivery,company specializing in quick dissolving thin film pharmaceutical ... patent No. 7,425,292 from the,United States Patent and ... expected to issue on September 16, 2008, relates,to ...
... Inc. is,pleased to announce the release of TreatmentTrends(TM): Anemia ... with Anemia Managers. It is,based on the results of ... working with dialysis patients and 50 working with later ... a,subset of 25 respondents. The report focuses on the ...
... Sept. 11 Neurobiological,Technologies, Inc. (NTI(R)) (Nasdaq: NTII ... quarter and year-end financial results on September,16, 2008., ... its financial results.,Details for the fiscal year-end call are ... 2008 -- Time: 10:30 a.m. ET, 9:30 a.m. ...
Cached Biology Technology:MonoSol Rx Granted Strategic US Patent for Thin Film Manufacturing Process 2MonoSol Rx Granted Strategic US Patent for Thin Film Manufacturing Process 3New Study by BioTrends Highlights Anemia Practice Patterns According to Anemia Managers in Both Dialysis Units and CKD Clinics/Offices 2New Study by BioTrends Highlights Anemia Practice Patterns According to Anemia Managers in Both Dialysis Units and CKD Clinics/Offices 3Neurobiological Technologies Announces Dates for 2008 Fiscal Year End Financial Results Conference Call and Presentation at MCF Investor Summit 2
Mouse Endoglin/CD105 Fluorescein MAb (Clone 209701)...
Catalase (Control)...
Human RELT/TNFRSF19L MAb (Clone 238104)...
... assay kit measures NOS activity by monitoring ... This assay is simple, sensitive, and specific ... with both crude and purified enzyme preparations. ... for 50 total reactions. Radiolabeled arginine and ...
Biology Products: