NANOFER 25S

Aqueous dispersion of Fe(0) nanoparticles with biodegradable organic surface modification, which has been designed especially for in-situ groundwater remediation. Frequent target contamination is hexavalent chromium and chlorinated hydrocarbons.
References and Articles
Distribution and Storage
Download
Contaminants
References and Articles
Full-scale application of nZVI: remediation of deep contamination plume close to source of drinking water
This site is located in a very complex geological environment and in imminence of the source of drinking water. Therefore, the soluble in-situ reagents cannot be applied here. NANOFER slurry was chosen for removal of chlorinated hydrocarbons (CHCs) from a deep aquifer in fractured rocks.
Zero-Valent Iron Nanoparticles
References
Full-scale application of nZVI: mixed contamination of chromium and chlorinated solvents
Application of surface stabilized iron nanoparticles (NANOFER 25S) to eliminate groundwater contamination of chlorinated hydrocarbons (CHCs) and hexavalent chromium (Cr6+) at KARA Trutnov site in the Czech Republic.
Zero-Valent Iron Nanoparticles
References
 All product references

Combined abiotic and biotic in-situ reduction of hexavalentchromium in groundwater using nZVI and whey: A remedial pilot test
The paper describes a pilot remediation test combining two Cr(VI) geofixation methods – chemical reduction by nanoscale zero-valent iron (nZVI) and subsequent biotic reduction supported by whey. Combination of the methods exploited the advantages of both – a rapid decrease in Cr(VI) concentrations by nZVI, which prevented further spreading of the contamination and facilitated subsequent use of the cheaper biological method. Successive application of whey as an organic substrate to promote biotic reduction of Cr(VI) after application of nZVI resulted in a further and long-term decrease in the Cr(VI) contents in the groundwater.
Distribution and Storage
Product availability: 500kg of slurry is usually dispatched in one day. Please consider using NANOFER STAR dry powder and preparation of fresh slurry by our dispersing unit in case you require larger quantities.

NANOFER slurry products are distributed in plastic canisters (capacity 5, 10 or 20 kg), small samples are available in PET bottles (100g, 250g, 500g). Storage in glass is not recommended due to pressure build-up.

Shelf-life: NANOFER slurry products are an extremely reactive dispersions of iron nanoparticles that – if in contact with oxygen or water – intensively oxidize. NZVI, which is capable of efficient reduction of contaminants in water, transforms into iron oxides and hydroxides. For this reason it is necessary to process the material as soon as possible, we do not recommend to store NZVI aqueous dispersions for a long time. If you need to do so, please store it in cold premises (5°C) in order to reduce corrosion rate. For more information, please read the article about nZVI slurry ageing in the download section.
Download
nZVI slurry ageing
314 kB / pdf
NANOFER 25S SDS English
310 kB / pdf
Contaminants
Group Contaminant Other names
Chlorinated ethenes Tetrachloroethane PCE, Perchloroethene
  Trichloroethene TCE
  1,1-Dichloroethene DCE
  Trans-1,2-Dichloroethene t-DCE
  Cis-1,2-Dichloroethene c-DCE
  Chloroethene VC, Vinylchloride
Chlorinated ethanes 1,1-Dichloroethane 1,1-DCA,ethylidene dichloride
  1,1,1-Trichloroethane TCA, Methyl chloroform
  1,1,1,2-Tetrachloroethane  
  1,1,2,2-Trichloroethane  
  1,1,2,2-Tetrachloroethane  
  Hexachloroethane PCA
Chlorinated methanes Dichloromethane Freon 30, DCM
  Tetrachloromethane Freon 10, Halon 104
  Chloroform Freon 20, TCM
  Chloromethane Freon 40, Methyl chloride
Trihalomethanes Bromodichloromethane Dichlorobromomethane
  Tribromomethane Bromoform
  Dibromochloromethane Chlorodibromomethane
Chlorinated benzenes Chlorobenzene Phenyl chloride
  Dichlorobenzene  
  Trichlorobenzene  
  Tetrachlorobenzene Benzene tetrachloride
  Pentachlorobenzene PeCB
  Hexachlorobenzene HCB, Perchlorobenzene
Other organic Trichlorofluoroethane Freon 11
  1,2-Dibromoethane  
  1,1,2-Trichlortrifluorethane Freon 113
  1,2-Dichloropropane Propylene dichloride
  1,2,3-Trichloropropane  
  Nitrobenzene Nitrobenzol
  Trinitroglycerin TNG
  2-Methyl-1,3,5-Trinitrobenzene TNT, Trinitrotoluene
  2,3,4,5,6-Pentachlorophenol PCP, Chlorophen
  N,N-Dimethylnitrous amide NDMA
  Dichlorodiphenyltrichloroethane DDT
  1,2,3,4,5,6-Hexachlorocyclohexane Lindane, HCH
  Molinate  
  Polychlorinated biphenyls PCB
  Dioxins Dimethylnitrosamine
Inorganic Arsenic As
  Barium Ba
  Cadmium Cd
  Chromium Cr
  Copper Cu
  Lead Pb
  Mercury Hg
  Nickel Ni
  Selenium Se
  Uranium U
  Zinc Zn
  Nitrates  
  Nitrites  
  Perchlorates  
  Phosphates  
  Sulphates