NDLI: Sampling and analyses of colloids at the Drigg low level radioactive waste disposal site

Please wait, while we are loading the content...

Molecular characterisation of organic material in air fine particles (PM₁₀) using conventional and reactive pyrolysis-gas chromatography-mass spectrometry

Determination of isocyanates, aminoisocyanates and amines in air formed during the thermal degradation of polyurethane

Observation of volatile and semi-volatile carbonyls in an Algerian urban environment using dinitrophenylhydrazine/silica-HPLC and pentafluorophenylhydrazine/silica-GC-MS

Sampling and analyses of colloids at the Drigg low level radioactive waste disposal site

Chromium speciation and fractionation in ground and surface waters in the vicinity of chromite ore processing residue disposal sites

Assessing the removal of inorganic colloids and Cryptosporidium parvum from drinking water

Mechanistic studies of N-nitrosodimethylamine (NDMA) formation in chlorinated drinking water

Patterns and levels of halogenated volatile compounds in Portuguese surface waters

Performance of an in situ passive sampling system for metals in stormwater

Speciation of iron in river water using a specific catalytic determination and size fractionation

Quantifying the phenolic content of freshwaters using simple assays with different underlying reaction mechanisms

MTBE (methyl tertiary-butyl ether) in groundwaters: Monitoring results from Germany

Organotin compounds in a Norwegian fjord. A comparison of concentration levels in semipermeable membrane devices (SPMDs), blue mussels (Mytilus edulis) and water samples

Chlorobiphenyl contaminants at Pladda and Garroch Head in the Firth of Clyde following the cessation of sewage sludge dumping

Isotopic characterisation of lead deposited 1989–2001 at two upland Scottish locations

Heavy metal speciation in the composting process

Identification of dredged sediment-derived soils in the alluvial plains of the Leie and the Upper and Sea Scheldt rivers (Belgium) based on physico-chemical soil properties

Non-selective signal loss in the ¹³C CPMAS NMR spectra of soil organic matter. Investigations of particle size fractions

Accelerated fractionation of heavy metals in contaminated soils and sediments using rotating coiled columns

Recycling of complexometric extractants to remediate a soil contaminated with heavy metals

Optimization of a multielement sequential extraction method employing an experimental design approach for metal partitioning in soils and sediments

Journal of Environmental Monitoring Vol - 4 Issue - 1

Journal of Environmental Monitoring Vol -3

Journal of Environmental Monitoring Vol -2

Sampling and analyses of colloids at the Drigg low level radioactive waste disposal site

Content Provider	Royal Society of Chemistry (RSC)
Author	Beckett, K. Verrall, K. Allinson, S. Fairhurst, A. Russel-Flint, K. Eilbeck, A. Warwick, P.
Copyright Year	2002
Abstract	Water samples have been extracted from inside (from standpipes) and from outside (from boreholes) of the trenches at the low level radioactive waste disposal site at Drigg in Cumbria, UK. The samples were taken anaerobically from between 8.5 and 10.0 m below the surface using a submersible pump at low flow rates to ensure that the waters in the standpipes and boreholes were maintained at constant levels. To ensure representative samples, the Eh, pH, conductivity, temperature, iron and dissolved oxygen concentrations of the waters were taken during initial purging and during sampling. The gross tritium, gross non-tritium beta, gross alpha and gamma activities of each sample were determined using suitable sample preparation and counting techniques. Samples were then anaerobically, sequentially filtered through 12 µm, 1 µm, 30 kDa and 500 Da filter membranes. The filtrates were analysed for gross alpha, gross non-tritium beta and gamma activities. SEM and STEM analyses were used to determine the colloid population. An energy dispersive analyser on the SEM was used to determine the major elements present in the colloids. UV–visible spectrophotometry, fluorescence spectrophotometry and high performance size exclusion liquid chromatography were used to analyse the waters before and after treatment with ion exchange materials to determine whether natural organic matter was present in the waters. Results showed that two major types of colloids (iron containing colloids and silicon containing colloids) were present in the waters. There were also a small number of other colloids that contain, as major elements, aluminium, calcium and chromium. Organic colloids were also present. The majority of the radioactivity in the waters was due to tritium. Waters taken from outside the trenches contained low levels of non-tritium beta activities and alpha activities which were lower than the minimum detectable amount. Waters taken from the trenches contained non-tritium beta activities and low levels of alpha emitters. Filtration of the trench waters showed that some of the alpha activity was retained by the 30 kDa and 500 Da membranes suggesting that this activity was associated with small colloids. Radioactivity was not found to be associated with colloids present in the waters taken from outside the trenches. Possible reasons for this observation could be that radionuclide bearing colloids have not yet reached the far-field or that the radionuclide concentration is diluted to below the minimum detectable amount. After concentrating two of the samples by factors of ×20 and ×16 respectively, 2.4 ± 0.1 and 0.6 ± 0.1 Bq dm−3 of 137Cs were measured.
Starting Page	229
Ending Page	234
Page Count	6
File Format	HTM / HTML PDF
ISSN	14640325
Volume Number	4
Issue Number	2
Journal	Journal of Environmental Monitoring
DOI	10.1039/b106256p
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Drigg Cumbria UK High-level radioactive waste management The Samples Submersible pump PH Oxygen Tritium Micrometre Scanning transmission electron microscopy Colloid Spectrophotometry Fluorescence Ion Aluminium Calcium Chromium Radionuclide Becquerel Caesium-137
Content Type	Text
Resource Type	Article
Subject	Public Health, Environmental and Occupational Health Management, Monitoring, Policy and Law

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Radiocesium accumulation in Egeria densa, a submerged plant – possible mechanism of cesium absorption

Radioactive fallout in the United States due to the Fukushima nuclear plant accident

Preparation and characterization of potassium nickel hexacyanoferrate-loaded hydrogel beads for the removal of cesium ions

Biotic, temporal and spatial variability of tritium concentrations in transpirate samples collected in the vicinity of a near-surface low-level nuclear waste disposal site and nearby research reactor.

Sampling at Drigg sand dunes (1999-03-01)

Chronic ingestion of 137-caesium does not induce significant modifications of the immune system

Tritium release during nuclear power operation in China.

Directions for Low Level Waste Repository near Drigg

Enhancement of tritium concentrations on uptake by marine biota: experience from UK coastal waters.

Sampling and analyses of colloids at the Drigg low level radioactive waste disposal site

Similar Documents

Radiocesium accumulation in Egeria densa, a submerged plant – possible mechanism of cesium absorption

Radioactive fallout in the United States due to the Fukushima nuclear plant accident

Preparation and characterization of potassium nickel hexacyanoferrate-loaded hydrogel beads for the removal of cesium ions

Biotic, temporal and spatial variability of tritium concentrations in transpirate samples collected in the vicinity of a near-surface low-level nuclear waste disposal site and nearby research reactor.

Sampling at Drigg sand dunes (1999-03-01)

Chronic ingestion of 137-caesium does not induce significant modifications of the immune system

Tritium release during nuclear power operation in China.

Directions for Low Level Waste Repository near Drigg

Enhancement of tritium concentrations on uptake by marine biota: experience from UK coastal waters.

Sampling and analyses of colloids at the Drigg low level radioactive waste disposal site