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首页> 外文期刊>Renewable & Sustainable Energy Reviews >Life cycle assessment of pentachlorophenol-treated wooden utility poles with comparisons to steel and concrete utility poles
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Life cycle assessment of pentachlorophenol-treated wooden utility poles with comparisons to steel and concrete utility poles

机译：五氯苯酚处理过的木制电线杆的寿命周期评估，与钢和混凝土电线杆的比较

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摘要

A cradle-to-grave life cycle assessment (LCA) was done to identify the environmental impacts related to pentachlorophenol (penta)-treated wooden utility poles. Penta-treated utility poles commonly are used for electricity distribution and transmission, and telecommunications. In addition, this LCA has evaluated the opportunities to reduce the environmental impacts associated with penta-treated poles and has compared the penta-treated pole product to alternative products. A model of penta-treated utility pole life cycle stages was created and used to determine inputs and outputs during the pole production, treating, service life, and disposal stages. Pole production data are based on published sources. Primary wood preservative treatment data were obtained by surveying wood treatment facilities in the United States. Product service life and disposal inventory data are based on published data and professional judgment. Life cycle inventory inputs, outputs, and impact indicators for penta-treated utility poles were quantified per pole. In a similar manner, an inventory model was developed for the manufacture, service life, and disposal of the primary alternative products: steel and spun concrete utility poles. Impact indicator values, including greenhouse gas (GHG) emissions, fossil fuel and water use, and emissions with the potential to cause acidification, smog, ecological toxicity, and eutrophication were quantified for each of the pole products. The GHG, fossil fuel use, acidification, water use, eutrophication, and ecological toxicity impact indicator values for penta-treated poles are less than those for concrete poles. The GHG, fossil fuel use, acidification, water use, and ecological toxicity impact indicator values for penta-treated poles are less than those for steel poles. The values are about equal for eutrophication. The smog impact from penta-treated poles is greater than the smog impact from both concrete and steel poles.
机译：进行了从摇篮到坟墓的生命周期评估（LCA），以确定与五氯苯酚（penta）处理的木制电线杆相关的环境影响。经五角处理的电线杆通常用于配电和输电以及电信。此外，该LCA还评估了减少与五氧化碳处理过的杆相关的环境影响的机会，并将五氧化碳处理过的杆产品与替代产品进行了比较。建立了经过五氧化碳处理的电线杆生命周期阶段的模型，该模型用于确定电线杆生产，处理，使用寿命和处置阶段的投入和产出。钢管生产数据基于已公开的资料。木材防腐处理的主要数据是通过对美国的木材处理设施进行调查获得的。产品使用寿命和处置库存数据基于已发布的数据和专业判断。五极处理过的电线杆的生命周期清单输入，输出和影响指标均按每个电线杆进行量化。以类似的方式，开发了库存模型，用于制造，使用寿命和主要替代产品的处置：钢和旋转混凝土电线杆。对每个极类产品量化了影响指标值，包括温室气体（GHG）排放，化石燃料和水的使用以及可能引起酸化，烟雾，生态毒性和富营养化的排放。五氧化碳处理过的杆的温室气体，化石燃料的使用，酸化，水的使用，富营养化和生态毒性影响指标值小于混凝土杆。五氧化碳处理过的杆的温室气体，化石燃料的使用，酸化，水的使用和生态毒性影响指标值小于钢杆。对于富营养化，该值大约相等。经五氧化二碳处理过的杆子产生的烟雾影响大于混凝土杆和钢杆产生的烟雾影响。

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