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| Tekijä: | Prado, Ó. J. Gabriel, D. Lafuente, J. |
| Otsikko: | Economical assessment of the design, construction and operation of open-bed biofilters for waste gas treatment |
| Lehti: | Journal of Environmental Management
2009 : JUN, VOL. 90:8, p. 2515-2523 |
| Asiasana: | waste gas industry costs estimation investment operational research sensitivity analysis |
| Vapaa asiasana: | waste gas treatment open-bed biofilter economical assessment protocol packing material costs |
| Kieli: | eng |
| Tiivistelmä: | In the article, a protocol was developed with the purpose of assessing the main costs implied in the set-up, operation and maintenance of a waste gas-treating conventional biofilter. The main operating parameters considered in the protocol were the empty bed residence time and the gas flow rate. A wide variety of investment and operating costs were considered. It is shows that total annualized costs were between 20 000 and 220 000 /year and directly dependent, among other factors, on the size of the system as well as a sensitivity analysis was performed in order to assess the relative influence of a series of selected costs. The results prove in following: 1) operating costs are those that influence the total annual costs to a higher extent. 2) packing material replacement costs contribute significantly to the total yearly costs in biofilters with a volume higher than 800 m3. 3) among operating costs, the electricity consumption is the main influencing factor in biofilters with a gas flow rate above 50 000 m3/h, while labor costs are critical at lower gas flow rates. 4) the use of a variety of packing materials commonly employed in biofiltration was assessed. etc. |
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