Your search resulted in 317 documents. Displaying 25 entries per page.
Performance of Chromated Copper Arsenic Treated and Untreated Papua New Guinea Timber Species in Marine Exposure after 95 weeks (664 days)
2025 - IRG/WP 25-11062
A Masters’ thesis on the topic was successfully completed and submitted in September 2024. The thesis reports on results obtained from exposure of five Papua New Guinea (PNG) timber species (obtained from secondary growth or plantation grown) after 218 days…
E Galore, J Norton, T Singh
Leaching Potential of selected Mississippi Soils Contaminated with Pentachlorophenol (PCP) and Chromated Copper Arsenic (CCA)
2013 - IRG/WP 13-50293
Desorption of pentachlorophenol (PCP), and chromated copper arsenic (CCA) from five Mississippi soil regions was studied. The soils tested were Blackland Prairie (Dorman), the Interior Flatwoods (Winston), the Delta, the Coastal Plains (Wiggins) and the Loess soil (Raymond). Soils were contaminated with 500 ppm and…
K Ragon, H Borazjani, S Keshani Langroodi, S Diehl
Laboratory study of toxicity or tolerance of CCA preservative and heavy metal constituents copper, chromium and arsenic to Malaysian tropical fungi
2011 - IRG/WP 11-30579
…0.24%m/m; chromium-salt: 0.0095 – 0.019%m/m) except for arsenic-salt (Phialophora fastigiata: 0.076 – 0.24%m/m; Paecilomyces variotii: 0.48 – 0.95%m/m; Basidiomycete: 0.24 – 0.48%m/m). The results showing varying efficacies (toxicity versus tolerance) in vitro of CCA and their metal constituents between…
A H H Wong, T Mark Venås, N Morsing, C C L Tan, P K F Chong
Leachability of Arsenic, Chromium and Copper from Weathered Treated Wood
2008 - IRG/WP 08-50255
The objective of this study was to quantify the loss of arsenic, chromium and copper from weathered treated wood under normal field conditions as most residential structures currently in service in the U.S. have been constructed at least 3 years ago. For comparison, leaching from different retention levels of…
A R Hasan, Ligang Hu, H M Solo-Gabriele, Yong Cai, L A Fieber
Above and Below-Ground Depletion of Copper, Chromium and Arsenic from Pinus radiata and Fagus sylvatica at Thirteen Test Sites in New Zealand and Australia
2006 - IRG/WP 06-30402
…wood species had a major effect on copper, chromium and arsenic loss from CCA treated pine and beech. At the most severe site above and below ground percentage losses for pine were, 36 and 73 for copper, 22 and 22 for chromium and 31 and 49 for arsenic. At the least severe site losses were close to zero for both…
R Wakeling
Paintability and gluability of wood treated with arsenic-free and chromium free preservative treatments
2006 - IRG/WP 06-40342
…the paintability and gluability of wood treated with arsenic-free and chromium-free preservative treatments.
Four formulations, all certified CTB P+, were selected in accordance with their representativeness of the preservative product market: one CCA reference formulation and three chromium and arsenic free…
L Podgorski, G Legrand
Arsenic removal by plant pumping mechanism from arsenic solution using activated aluminum oxide as adsorbent – a preliminary study
2006 - IRG/WP 06-50239
…the performance of plant pumping mechanism for removal of arsenic from arsenic solution using activated aluminum oxide as adsorbent. Generally, plants absorb water from soil mainly by osmosis process and toxic elements present in soil also move along with water. To remove toxic elements present in contaminated…
B Tarakanadha, H Koyanaka, T Hata, Y Imamura
A Prediction of Arsenic Groundwater Concentrations Influenced by Construction and Demolition Debris Landfills in Florida Containing CCA-Treated Wood
2006 - IRG/WP 06-50242
…can provide an indication of the potential impacts of arsenic from the infiltration of leachate from unlined C&D debris landfills containing CCA-treated wood. A solute transport model, Migration of Organic/Inorganic Chemicals (MYGRT), was chosen to predict groundwater contaminant concentrations at specified…
J Jambeck, T Townsend, H Solo-Gabriele
Leaching of Arsenic from Mulch Made from Recycled Construction and Demolition Wood
2005 - IRG/WP 05-50232
…copper arsenate (CCA)-treated wood and potentially release arsenic in the leachate by rainfall. Such recycled wood mulch is commonly masked with iron-oxide colorant, which is known to combine with arsenic. The objective of this study was to evaluate the levels of arsenic leaching from C&D recycled wood mulch…
T Shibata, H M Solo-Gabriele, T G Townsend, B Dubey
Removal of copper, chromium and arsenic from CCA treated wood using boron compounds
2005 - IRG/WP 05-50230
This study evaluates the copper (Cu), chromium (Cr) and arsenic (As) removal from CCA treated wood using boron compounds such as boric acid, borax (sodium tetraborate), and Timbor (DOT, disodium octaborate tetrahydrate) at varying (3 and 5%) concentrations. Remediation processes were taken at 1, 5 and 10 day…
B Tarakanadha, T Hata, S N Kartal, W J Hwang, Y Imamura
Long-Term Release of Arsenic, Chromium, and Copper from CCA-Treated Wood and Ash
2005 - IRG/WP 05-50227
…were conducted to characterize the leaching behavior of arsenic, chromium, and copper from CCA-treated wood samples (block, chip, and sawdust) and CCA-wood ash and to determine the rate of release of the metals from the CCA wood products. The leaching solutions were periodically collected and analyzed for the…
Hyunmyung Yoon, Heeseok Kang, Yong-Chul Jang
Economical analysis of the chemicals used on remediation copper, chromium and arsenic from out of service CCA-treated utility poles in Turkey
2004 - IRG/WP 04-50217
…a urgent needs to find a way removing Copper, Chrome and Arsenic from out-of-service CCA treated utility poles. For this purpose, many scientists have been studying on remediation of CCA treated wood.
In this study, oleic acid, chromotropic acid and citric acid were used to remove Cu, Cr and Ar from CCA treated…
E D Gezer, D Toksoy, Ü C Yildiz
Do CCA treated support stakes cause increased arsenic level in crops?
2003 - IRG/WP 03-50204
…the crop would be contaminated by the preservatives, arsenic in particular. Data from four years tracking analysis of bananas collected from the demonstration plots indicated that the arsenic levels were not significantly higher than the levels found in plants supported by untreated stakes. The arsenic content…
Li Zhaobang, Su Haitao, Liang Linqing
Performance of Copper-Chrome-Arsenic (CCA) and Copper-Chrome-Boric (CCB) treated panels of Bombax ceiba and Paraserianthus falcataria against bio-deterioration at Krishnapatnam harbour, east coast of India
2003 - IRG/WP 03-30310
…30 x 3.8 x 3.8 cm.) treated with CCA (Copper–Chrome–Arsenic) and CCB (Copper-Chrome-Borate) at four retention levels (8, 16, 24, and 32 kg/m3), for a period 3 years from August, 1997 to July, 2000. Control panels of both the species were heavily attacked by shipworms and pholads and rejected in a period of 3…
B Tarakanadha, N R Raveendra Prasad, K S Rao
Balance of arsenic and recycling
2002 - IRG/WP 02-50189
Instead of importing considerable quantities of arsenic to Europe, it would be sensible to utilize the arsenic recovered in the recycling process in the manufacture of CCA-wood, in the metallurgical industry as well as in other ways. When copper is also processed into a form easy to
utilize, it may be…
L Lindroos
Laboratory studies of CCA-C-leaching: influence of wood and soil properties on extent of arsenic and copper depletion
2002 - IRG/WP 02-50186
The extent which a wood preservative leaches is important for efficacy studies and environmental concerns. However, little information exists on the effect soil properties have on leaching. This study investigated leaching of stakelets which had been cut fro…
D Crawford, R F Fox, D P Kamden, S T Lebow, D D Nicholas, D Pettry, T Schultz, L Sites, R J Ziobro
Fouling assemblage development on copper-chromium-arsenic-treated timber submerged in European waters
2002 - IRG/WP 02-50181
The effect of the anti-marine-borer timber preservative CCA on community development of non-target marine fouling animals was investigated. Panels of Scots pine treated to target retentions of 12, 24 and 48 kg CCA per m3 of wood, plus untreated controls were s…
C Brown, R J Eaton, S M Cragg, P Goulletquer, A Nicolaidou, M J Bebianno, J Icely, G F Daniel, T Nilsson, A J Pitman, G Sawyer
Effect of remediation on the release of copper, chromium, and arsenic from particleboard made from CCA treated wood
2001 - IRG/WP 01-50170
…fermentation on the release of copper, chromium, and arsenic from particleboard made from remediated wood particles and also investigates durability of the particleboard against white and brown- rot fungi. Particleboard samples were manufactured using untreated, CCA-treated, OA-extracted, and bioremediated…
S N Kartal, C A Clausen
Leaching of copper, chromium and arsenic from CCA-treated Scots pine exposed in sea water
2000 - IRG/WP 00-50149
…out to measure the leaching rates of copper, chromium and arsenic from the surface of Scots pine panels vacuum-pressure treated to 3, 6, 12, 24, and 48 kgm-3 CCA. Untreated and treated panels were exposed in flowing seawater for up to 8 weeks followed by 2 weeks submersion in static seawater which was taken for…
C J Brown, R A Eaton
The performance of metal-chromium-arsenic formulations after 32 to 38 years' in-ground exposure in Australia
2000 - IRG/WP 00-30240
Two trials of metal-chromium-arsenic preservatives were exposed in-ground in Australia. In Trial 1, Pinus radiata stakes treated with Boliden K.33, Boliden S.25, Celcure A, Tanalith C and Tanalith CA were installed at Sydney and Narrandera in 1961/1962. In Trial 2, P. radiata and…
G C Johnson, J D Thornton, J Beesley
Effect of compression wood on leaching of chromium, copper, and arsenic from CCA-C treated red pine (Pinus resinosa Ait.)
2000 - IRG/WP 00-30232
…formation on the release rate of chromium, copper, and arsenic elements from red pine (Pinus resinosa Ait) was investigated. Wood blocks from red pine containing compression and normal wood portions were treated with a 1.0% CCA-C solution and were then allowed to fix at 23 ± ??2°C (74 ± 4°F) for 0, 6, 24, 48,…
S N Kartal, S T Lebow
Microwave modification of Yellow Stringybark (Eucalyptus Muelleriana) posts for impregnation with Copper-Chrom-Arsenic (CCA) preservatives
2000 - IRG/WP 00-40185
…the posts. High preservative absorption of copper-chrome-arsenic (CCA) was achieved ranging from 340-400 L/m3, indicating much improved permeability. Microwave conditioning followed by soaking in creosote resulted in total creosote penetration throughout the cross-section. Creosote uptake ranged from 119-168 kg/m3.…
G Torgovnikov, P Vinden
Preliminary PIXE micro-analysis of copper-chrome-arsenic preservative treated Malaysian hardwoods
1999 - IRG/WP 99-20169
…the macro-distribution and micro-analysis of copper-chrome-arsenic (CCA) preservative in Malaysian hardwoods Koompassia malaccensis, K. excelsa, Alstonia spp. and Dipterocarpus spp., and one temperate pinewood Pinus sylvestris, where the preservative retention differed between these wood species. Results demonstrated…
A H H Wong, R B Pearce, G W Grime, F Watt
A discussion on causes, effects and remedies of arsenic pollution of groundwater in Bangladesh
1998 - IRG/WP 98-50102
…paper includes possible causes, effects and remedies of arsenic pollution of groundwater in Bangladesh, extracted mostly from the international conference held in Dhaka in 1998. Next possible key steps have been suggested based on scientific principles and experience. The release of arsenic from underground…
A K Lahiry
Non leachability of arsenic, copper and chromium from 15 years old CCA-C treated southern pine poles used in brackish water as jetty piles in Bangladesh
1998 - IRG/WP 98-50103
Revealed that chromated copper arsenate type C (CCA-C) treated southern pine poles used in Central Warehouse Jetty of REB, Khulna are stable and resistant to chemical and biological attack without loss of any component from outer 0-12.5 mm zone after 15y of us…
A K Lahiry