Abstract:
:In this study an economic analysis of the purification of integrated solid waste treatment facility leachates through a willow-coppice (Salix) vegetation filter in southern Sweden was carried out. Calculations were based on the use of two computer models that were initially used in estimating a pump-and-pipe irrigation system for a 36-ha willow-coppice plantation to purify an average annual quantity of 195,000 m(3) of leachate with an average nitrogen content of 24 g/m(3). Results showed that facility leachates could be purified at US dollars 0.34/m(3) compared with US dollars 0.62/m(3) for that of conventional leachate treatment at a wastewater treatment plant. Furthermore, results revealed that the increased income from willow growing and sale of the biomass chips represented only a small factor in the overall cost of the purification technique--decreasing purification costs to US dollars 0.326/m(3). Sensitivity analyses also demonstrated that, because of the large leachate holding pond expense, only a fraction of facility leachate should be treated through a vegetation filter.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Rosenqvist H,Ness Bdoi
10.1016/j.biortech.2003.12.017subject
Has Abstractpub_date
2004-09-01 00:00:00pages
321-9issue
3eissn
0960-8524issn
1873-2976pii
S0960852404000094journal_volume
94pub_type
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pub_type: 杂志文章,收录出版
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