Výsledky vyhledávání - "A.C. Cunha-Queda"

Recovery of humic-like susbtances from low quality composts

Autor: Luís Teixeira de Lemos, A.C. Cunha-Queda, Maria Elisabete Silva, Margarida Bastos, Olga C. Nunes

Publikováno v: Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP

The quality of four commercial composts produced from poultry litter and municipal solid wastes was assessed based on their physic-chemical, stability and maturity parameters. These properties varied among the analysed composts; it was found that ele

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::edeb675c787f79106c2e2ea88558ade0
https://doi.org/10.1016/j.biortech.2012.11.013

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Comparison of the bacterial composition of two commercial composts with different physicochemical, stability and maturity properties

Autor: Maria Elisabete Silva, Ana R. Lopes, Olga C. Nunes, A.C. Cunha-Queda

Publikováno v: Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP

Previously, two municipal solid waste commercial composts (MSW1 and MSW2) were characterized. Although sharing the same type of raw material, most of their physicochemical, stability and maturity properties differed. The present study aimed to charac

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::81706864e376167a123253c193c10b7f
https://hdl.handle.net/10216/103121

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Study of biochemical and microbiological parameters during composting of pine and eucalyptus bark

Autor: Henrique Ribeiro, A.C. Cunha-Queda, F. Cabral, A. Ramos

Publikováno v: Bioresource Technology. 98:3213-3220

To study the possibility of some residues from pulp and paper industry being used as substrates to produce seedlings in containers, three composting experiments were carried out using eucalyptus bark, pine bark and a mixture (60:40, v:v) of pine bark

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5f5e6b18bff42ab8f691359356ba90e5
https://doi.org/10.1016/j.biortech.2006.07.006

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Evaluation of chemical and ecotoxicological characteristics of biodegradable organic residues for application to agricultural land

Autor: Paula Alvarenga, Elizabeth Duarte, R.M. Fernandes, A.C. Cunha-Queda, Patrícia Palma, Giovanni Vallini, A.P. Gonçalves

Publikováno v: Environment International, Vol 33, Iss 4, Pp 505-513 (2005)

The use of organic waste and compost as a source of organic matter and nutrients is a common practice to improve soil physico-chemical properties, meanwhile reducing the need for inorganic fertilisers. Official guidelines to assess sewage sludge and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3e8650d225171e3ef11cc2f832dc0e80
http://www.sciencedirect.com/science/article/pii/S0160412006001851

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Influence of the composition of the initial mixtures on the chemical composition, physicochemical properties and humic-like substances content of composts

Autor: Luís Teixeira de Lemos, Maria Elisabete Silva, Olga C. Nunes, A.C. Cunha-Queda

Publikováno v: Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP

The influence of the proportion of C- and N-rich raw materials (initial C/N ratio) and bulking agent on the chemical functional groups composition, humic-like substances (HS-like) content and physicochemical properties of composts was assessed. To ac

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::910076cef8f6385623c66a14299a6065
https://hdl.handle.net/10400.19/2934

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Correlation Between Humic-Like Substances and Heavy Metals in Composts

Autor: M. Elisabete F. Silva, Olga C. Nunes, L. Teixeira de Lemos, A.C. Cunha-Queda

Publikováno v: Functions of Natural Organic Matter in Changing Environment ISBN: 9789400756335

The purpose of this work was to correlate the humic-like substances content with the content of six heavy metals (Zn, Pb, Ni, Cu, Cr and Cd) in some composts commercialised in Portugal. Four commercial composts, two from non-separated municipal solid

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::77c1edc4d30f7434c2dd968025111530
https://doi.org/10.1007/978-94-007-5634-2_93

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A contribution towards the risk assessment of soils from the Sao Domingos Mine (Portugal): chemical, microbial and ecotoxicological indicators

Autor: Paula Alvarenga, Amarilis de Varennes, A.C. Cunha-Queda, Patrícia Palma

Publikováno v: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Agência para a Sociedade do Conhecimento (UMIC)-FCT-Sociedade da Informação
instacron:RCAAP
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)

Available at SciVerse ScienceDirect This study is a contribution towards a risk assessment of the São Domingos Mine area (Portugal), integrating information from: soil physicochemical characteristics, pseudo-total and bioavailable trace elements (As

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b0b5bc772d715fe61fe6abc25f32a7be

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Organic residues as immobilizing agents in aided phytostabilization: (II) effects on soil biochemical and ecotoxicological characteristics

Autor: R.M. Fernandes, Paula Alvarenga, Patrícia Palma, Elizabeth Duarte, A. de Varennes, A.C. Cunha-Queda, Giovanni Vallini, A.P. Gonçalves

Publikováno v: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Agência para a Sociedade do Conhecimento (UMIC)-FCT-Sociedade da Informação
instacron:RCAAP

Sewage sludge (SS), municipal solid waste compost, and garden waste compost (GWC) were used as immobilizing agents in aided phytostabilization of an acid metal-contaminated soil affected by mining activities. The organic residues were applied at 25,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::548de019bdd01b87cf99b0d8833c1dda

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Organic residues as immobilizing agents in aided phytostabilization: (I) Effects on soil chemical characteristics

Autor: R.M. Fernandes, Giovanni Vallini, Paula Alvarenga, Elizabeth Duarte, A.P. Gonçalves, A.C. Cunha-Queda, A. de Varennes

A greenhouse experiment was conducted to evaluate the effect of three different organic residues, sewage sludge (SS), municipal solid waste compost (MSWC), and garden waste compost (GWC), as immobilizing agents in aided phytostabilization of a highly

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e3c27d32a0d4d85a8745aadf2b6a52be
https://hdl.handle.net/10400.5/9070

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