2024-03-29T14:41:49Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/217032019-02-28T10:46:16Zcom_10261_5062com_10261_5col_10261_5064
Improvements in dioxin abatement strategies at a municipal waste management plant in Barcelona
Abad Holgado, Esteban
Caixach Gamisans, Josep
Rivera Aranda, Josep
Dioxins
Furans
PCDDs/PCDFs
Air pollution control system
Emissions
Combustion
Waste management
8 pages, 3 figures, 2 tables.-- PMID: 12547331 [PubMed].-- Available online Dec 7, 2002.
This study presents the results of a dioxin abatement programme undertaken in the municipal waste incineration plant of Montcada i Reixac (Barcelona, Spain) after the replacement of an obsolete air cleaning device by a new flue gas treatment system. A number of sampling campaigns were conducted with the aim of characterising stack gas emission levels of polychlorinated dibenzo-p-dioxins (PCDDs)/polychlorinated dibenzofurans (PCDFs) and to evaluate initial specifications of dioxin stack gas emission values below 0.1 ng I-TEQ/N m3. Preliminary results revealed levels between 44 and 111 ng I-TEQ/N m3 when the gas-cleaning system consisted only of an old electrostatic precipitator (ESP). Decreased levels around 15 ng I-TEQ/N m3 were observed when the semi-dry scrubber began to operate and the ESP was switched off. Again, remarkable dioxin removal was observed after the installation of the fabric filter and levels around 0.3–0.4 ng I-TEQ/N m3 were soon achieved. Nevertheless, the limit of 0.1 ng I-TEQ/N m3 was reached by additional injection of activated carbon which helped to lower PCDD/PCDF levels to around 0.036 ng I-TEQ/N m3. The results also demonstrated a significant change in the dioxin distribution present in combustion-derived materials (stack gas emission, bottom ash and solid waste from gas treatment). The major dioxin fraction was found in gaseous matrices before the flue gas control system was upgraded. After this step, the major dioxin fraction content was observed in solid waste from gas treatment.
Financial support of the project by the Agència Metropolitana de Residus del Àrea Metropolitana de Barcelona (Entitat de Medi Ambient).
Peer reviewed
2010-02-26T11:41:45Z
2010-02-26T11:41:45Z
2003-03
artículo
http://purl.org/coar/resource_type/c_6501
Chemosphere 50(9): 1175-1182 (2003)
0045-6535
http://hdl.handle.net/10261/21703
10.1016/S0045-6535(02)00483-6
1879-1298
en
http://dx.doi.org/10.1016/S0045-6535(02)00483-6
none
22195 bytes
application/pdf
Elsevier