Baptista, I.I.R.

Bessa, Vânia S.

Castro, Paula M. L.

Ferreira, R. Jorge

Lima, A.

Moura, S.C.

Preto, M.J.

English

Repositório Institucional da Universidade Católica Portuguesa

Start-up and operation of two large-scale biofilters installed at a municipalsolid waste treatment plantM.J. Preto1, I.I.R. Baptista1, V.S. Bessa2, S.C. Moura2, P.M.L. Castro2, A. Lima3, R.Ferreira Jorge11WeDoTech, Lda., Edifício CiDEB, Rua Dr. António Bernardino de Almeida s/n, 4200-072Porto, Portugal.2CBQF/Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Dr.António Bernardino de Almeida, 4200-072 Porto, Portugal3EFACEC – Engenharia e Sistemas, S.A., R. Eng. Frederico Ulrich - Apartado 3003 -Guardeiras - 4471-907 Maia, PortugalMunicipal solid waste management is a ubiquitous problem of large metropolis. Thespace restrictions for landfill expansion or construction have made the composting oforganic matter and recycling of valuable waste components a priority. A novelmunicipal waste treatment plant comprising (i) mechanical separation units tosegregate the recycling materials from the collected waste bags and (ii) fermentationtowers to produce biogas from the organic matter (converted later into compost), hasbeen implemented in the north of Portugal to reduce the waste volume destined forlandfill disposal. Consequently, odor emissions are associated with these activities andhave to be controlled.Two biofilters have been implemented at this waste treatment facility to treat odorsoriginating from (i) the enclosed building where the waste is received and mechanicallyseparated, and (ii) the enclosed building where the sludge retrieved from thecomposting process is dried and matured into compost. These biofilters were filledwith a mixture of wood-chips and compost and were exposed to different pollutantconcentrations and operating conditions. The start-up was monitored and compared.The effects that operation conditions, such as periods of drought and seasonalchanges, had on the biofilter performance were also investigated. Humidificationstrategies for maintaining adequate media moisture were experimented. The microbialcommunities present in the media, examined through biomolecular techniques,revealed that different communities had established in each biofilter. The resultsobtained demonstrate the potential of biofilters to mitigate odor emissions at wastetreatment plants.

Start-up and operation of two large-scale biofilters installed at a municipal solid waste treatment plant

https://repositorio.ucp.pt/bitstream/10400.14/8106/1/Abstract%20Wedotech_oral.pdf

Start-up and operation of two large-scale biofilters installed at a municipal solid waste treatment plant

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Repositório Institucional da Universidade Católica Portuguesa