Environ Sci Technol. 2013;47(21):12600-6. doi: 10.1021/es402910p.
The emissions of polybrominated dibenzo-pdioxins,dibenzofurans (PBDD/Fs), and polybrominated diphenyl ethers (PBDEs) from trial combustion of 10 wt % dried industrial wastewater-treatment sludge (IWTS) and 90 wt % woodchip in an industrial boiler were investigated and compared to that from woodchip combustion. The PBDD/F toxic equivalent (TEQ) andPBDE emissions increased from 0.121 pg TEQ Nm−3 and 2260 pgNm−3, respectively, of the woodchip combustion to 0.211 pg TEQNm−3 and 4200 pg Nm−3, respectively, of the trial combustion.PBDD/F and PBDE congener profiles of inputs and outputs of the same type of combustion were similar; they also show similarity between woodchip and trial combustions, revealing that the destruction pathway was little affected by the introduction of the IWTS. The fates of PBDD/Fs and PBDEs show that the indigenous pollutants in the feed were effectively depleted (>93.5%). The dominant releasing route of PBDD/F and PBDE shifted from the stack flue gas of woodchip combustion to the ashes of trial combustion. This study demonstrates that co-combustion not only handles the fast growing sludge stream but also yields a saving of 26.3% in the fuel cost and treatment fees of sludge and ashes.
研究并比较了在工业锅炉中焚烧 10wt%干工业废水处理污泥（IWTS）和 90wt%木屑的试验燃烧与单独焚烧木屑时多溴二苯并对二恶英、二苯并呋喃（PBDD/Fs）和多溴联苯醚（PBDEs）的排放情况。与单独焚烧木屑相比，试验燃烧时 PBDD/F 毒性当量（TEQ）和 PBDE 的排放量分别从木屑燃烧时的 0.121pg TEQ Nm−3和 2260pg Nm−3增加到 0.211pg TEQ Nm−3和 4200pg Nm−3。同一类型燃烧的投入和产出的 PBDD/F 和 PBDE 同系物分布相似；它们也与木屑和试验燃烧相似，表明破坏途径受 IWTS 的引入影响较小。PBDD/Fs 和 PBDEs 的命运表明，进料中的本地污染物被有效消耗（>93.5%）。PBDD/F 和 PBDE 的主要释放途径从木屑燃烧的烟囱废气转移到试验燃烧的灰烬。本研究表明，共燃烧不仅可以处理快速增长的污泥流，还可以节省 26.3%的燃料成本和污泥及灰烬的处理费用。
