Gaseous emissions from co-combustion of biosolids from the meat processing industry with wood
Virmond, E; Albrecht, W; Althoff, CA; Andersen, SLF; de Sena, RF; Moreira, RFPM; Jose, HJ
| HERO ID | 7718788 |
|---|---|
| In Press | No |
| Year | 2021 |
| Title | Gaseous emissions from co-combustion of biosolids from the meat processing industry with wood |
| Authors | Virmond, E; Albrecht, W; Althoff, CA; Andersen, SLF; de Sena, RF; Moreira, RFPM; Jose, HJ |
| Journal | Environmental Progress and Sustainable Energy |
| Volume | 40 |
| Issue | 5 |
| Abstract | Flotation sludge from the meat processing industry can be applied as biofuel in already existing plant-scale boilers. This biosolid is rich in oil and grease and has higher energetic content on a dry ash-free basis (22.74 and 27.71 MJ kg−1) than the wood-based fuel (16.62 and 16.16 MJ kg−1). Co-combustion trials were performed at a pilot-scale cyclonic combustor (100 kg h−1) and at an industrial flamotubular rotatory grate-fired system (6000 kg h−1), co-firing pre-dried and centrifuged flotation sludges (respectively) and wood at a mass ratio of 1:3. At a moisture content of 60.13 wt%, the lower heating value of the centrifuged sludge was 10.24% lower compared to wood, thus reducing it to at least 40 wt% would be advisable to obtain energy gains in the industrial plant when operating the co-combustion. The emissions were evaluated and compared to emission standards, including the characterization of polycyclic aromatic hydrocarbons and polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (given as Toxicity Equivalent Factors at O2ref = 7%), which have not yet been reported. The 16 target polycyclic aromatic hydrocarbons were identified at pilot and plant scales (0.582 ± 0.143 μg Nm−3 and 0.602 ± 0.506 μg Nm−3, respectively) being lower than the Danish reference standard (5.0 μg Nm−3). The polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans concentrations were 0.0004 ± 0.0001 ng Nm−3 at pilot scale and 0.3617 ± 0.1310 ng Nm−3 at plant scale, both below the Brazilian and American standards but differed greatly between the scales, requiring further investigation since their formation can occur due to combustion and postcombustion conditions. © 2021 American Institute of Chemical Engineers. |
| Doi | 10.1002/ep.13633 |
| Wosid | WOS:000626588800001 |
| Url | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85102307102&doi=10.1002%2fep.13633&partnerID=40&md5=16a982ce4b526a4f15a0cd5541411575 |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |
| Keyword | biofuels; biomass; dioxins and furans; polycyclic aromatic hydrocarbons; volatile organic compounds |