Evaluation of capital cost data. part 7: Liquid waste disposal with emphasis on physical treatment
作者:
David G. Wright,
Donald R. Woods,
期刊:
The Canadian Journal of Chemical Engineering
(WILEY Available online 1993)
卷期:
Volume 71,
issue 4
页码: 575-590
ISSN:0008-4034
年代: 1993
DOI:10.1002/cjce.5450710411
出版商: Wiley Subscription Services, Inc., A Wiley Company
关键词: capital costs;environmental;physical treatment;labour;material cost factors
数据来源: WILEY
摘要:
AbstractCapital cost correlations are given for oil‐water separators, equalization basins, primary clarifiers, clarifiers and clarifier mechanisms, reverse osmosis unit, ultrafiltration units, gravity filters and miroscreens. Data are included for raw sewage, intermediate and recirculation pumping stations and for preliminary treatment (or bar screens, grit removal, overflow and bypass chamber and Parshall flume), for grit removal, comminution and gas stripping. The correlations are accurate to ± 30%, expressed in Canadian dollars and adjusted to a Marshall and Swift value of 1000. Details as to what components are included in the cost are given. Data are given for the labour and material costs to create a working process module.For inflation indices, a critique of the Engineering News Record, EPA small city, Marshall and Swift, Chemical Engineering and Southam inflation indices suggested that the Marshall and Swift index is most appropriate for the construction and process equipment studied here. Concerning the currency exchange, for the equipment and processes in this study, equipment costs the same whether expressed directly in US or Canadian dollars.To put the current data into perspective, several hundred sources of cost data were analyzed. The major correlations are compared, on a consistent basis, with current da
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