sprinklerverdichting
| 03:45 Mar 6, 2008 |
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| Dutch to English translations [PRO] Tech/Engineering - Construction / Civil Engineering | |||||||
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| 4 | water sprinkling treatment |
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| Discussion entries: 3 | |
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Answers
4 hrs confidence: 
water sprinkling treatment Explanation: Hallo Karel, I found tthe following references. It deals with the water sprinkling treatment of wood, maybe they will help you. http://www-wurc.slu.se/rese/project_00.htm Microbial degradation of pulp wood Ultrastructural studies of post harvest changes in wood Aim: This project strives to elucidate post harvest pre process mechanisms that negatively affect the quality properties of the wood raw material intended for pulp and paper production. The project focuses mainly on mechanisms causing discoloration of wood. Background: The properties of raw wood raw material (i.e. the native trees) are known to significantly affect the final properties of the pulp and paper produced, however product quality is also affected by the treatment of the raw material after felling. It is often necessary to store wood intended for industrial use in sawmills and pulp mills for shorter- or longer periods. During this storage period, the logs are often water sprinkled during the warm season in order to prevent quality losses due to insect infestations and by staining fungi etc. Sprinkling is an efficient method to prevent losses related to the drying-out of logs. One drawback with water sprinkling and wet storage of wood in general, is the discolouration of the outer part of the xylem caused by the inward movement of substances from the bark. Water sprinkling and wet storage is also known to facilitate bacterial degradation of pit membranes in the wood. Several substances (e.g. tannins) in the bark are thought to be involved in the discolouration of stored wood. http://www.cababstractsplus.org/google/abstract.asp?AcNo=200... English Title: Frequently isolated microorganisms from Caribbean pine wood under water sprinkling system. Personal Authors: Encinas, O., Mohali, S., Mora, N., Villarreal, N. Author Affiliation: Universidad de Los Andes, Facultad de Ciencias Forestales y Ambientales, Grupo de Investigación en Conservación de Maderas (GICOM), Mérida, Venezuela. Editors: No editors Document Title: Revista Forestal Venezolana, 2002 (Vol. 46) (No. 1) 9-14 Abstract: A study was carried out to identify both wood rot and stain fungi on Caribbean pine (Pinus caribaea var. hondurensis) logs from the commercial plantations in East Venezuela, stored under sprinkling system with water. Microorganisms in water and in the environment surrounding the yard were also collected. Twelve mould fungi were found and identified, mostly Aspergillus spp, Cladosporium spp, Fusarium spp, and Penicillium spp. The Sporotrichum spp. showed clamp connection, typical figure to Basidiomycetes. Diplodia mutila [Botryosphaeria stevensii] and Lasiodiplodia theobromae were collected as main stain fungi. Two Gram negative bacteria, Bacillus sp. and Pseudomonas sp., were also collected. Publisher: Facultad de Ciencias Forestales y Ambientales, Universidad de Los Andes |
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