8 documents found, page 1 of 1
Combined pretreatment by ultrasound and struvite precipitation of raw substrate...
Coura, Renata D'arc; Rodrigues, Ana Cristina; Alonso, Joaquim Mamede; Ferraz, Ana Isabel; Brito, Luis Miguel; Abrantes, João Carlos CastroThe present study aimed to optimize the struvite chemical precipitation process in nitrogenrich anaerobic co-digestion systems. Struvite precipitation experiments were carried out using a mixture of cattle slurry liquid fraction and sewage sludge, with and without ultrasound pretreatment. Marine salt or MgCl2 were used as magnesium source in NH4 + :Mg2+ stoichiometric proportions of 1:1.5 and 1:3. Under the tes...
Spatially explicit model for anaerobic co‐digestion facilities location and pre...
Coura, Renata D'arc; Alonso, Joaquim Mamede; Rodrigues, Ana Cristina Costa; Ferraz, Ana Isabel; Mouta, Nuno; Silva, Renato; Brito, António Guerreiro deThe high volumes of animal manure and sewage sludge, as a consequence of the development of intensive and specialized cattle dairy farms in peri-urban areas, pose challenges to local environmental quality and demands for systems innovation. Besides these negative impacts, energy recovery from biogas produced in anaerobic co-digestion processes should contribute to local sustainable development. This research co...
Combined pretreatment by ultrasound and struvite precipitation of raw substrate...
Coura, Renata D'arc; Rodrigues, Ana Cristina Costa; Alonso, Joaquim Mamede; Ferraz, Ana Isabel; Brito, Luis Miguel; Abrantes, João Carlos de CastroThe present study aimed to optimize the struvite chemical precipitation process in nitrogen-rich anaerobic co-digestion systems. Struvite precipitation experiments were carried out using a mixture of cattle slurry liquid fraction and sewage sludge, with and without ultrasound pretreatment. Marine salt or MgCl2 were used as magnesium source in NH4+:Mg2+ stoichiometric proportions of 1:1.5 and 1:3. Under the test...
Spatially explicit model for anaerobic co-digestion facilities location and pre...
Coura, Renata D'arc; Alonso, Joaquim Mamede; Rodrigues, Ana Cristina; Ferraz, Ana Isabel; Mouta, Nuno; Silva, Renato; Brito, Antonio Guerreiro DeThe high volumes of animal manure and sewage sludge, as a consequence of the development of intensive and specialized cattle dairy farms in peri-urban areas, pose challenges to local environmental quality and demands for systems innovation. Besides these negative impacts, energy recovery from biogas produced in anaerobic co-digestion processes should contribute to local sustainable development. This research co...
Combined pretreatment by ultrasound and struvite precipitation of raw substrate...
Coura, Renata D'arc; Rodrigues, Ana Cristina; Alonso, Joaquim Mamede; Ferraz, Ana Isabel; Brito, Luís Miguel; Abrantes, João Carlos CastroThe present study aimed to optimize the struvite chemical precipitation process in nitrogenrich anaerobic co-digestion systems. Struvite precipitation experiments were carried out using a mixture of cattle slurry liquid fraction and sewage sludge, with and without ultrasound pretreatment. Marine salt or MgCl2 were used as magnesium source in NH4 +:Mg2+ stoichiometric proportions of 1:1.5 and 1:3. Under the test...
Screening for Critical Congenital Heart Defects: One Positive Case Over Eight Y...
Ferraz, Ana Isabel; Silva, Patrícia; Mimoso, Gabriela; Morais, SofiaNeonatal screening for congenital heart defects is a standard procedure. However, its low yield is being questioned particularly due to robust prenatal screening programs. Nevertheless, some lesions, such as total anomalous pulmonary venous return, have a low prenatal diagnosis pick-up rate. In this context, pulse oximetry has an important role in its diagnosis. We report a case of a newborn with total anomalo...
Guia para o saneamento ecológico integral
Rodrigues, Ana Cristina; Ferraz, Ana Isabel; Santos, Joana Nogueira; Brito, Luís Miguel; Dias, Maria Gabriela; Valin Sanjiao, Maria IsabelO Guia para o Saneamento Ecológico Integral foi desenvolvido no âmbito do projeto EcoSan, promovido pelo Instituto Politécnico de Viana do Castelo, em parceria com o CIIMAR da Universidade do Porto e o Portal da Construção Sustentável, com o apoio do Fundo Ambiental do Ministério do Ambiente e Ação Climática. Este guia pretende contribuir para a promoção do modelo de saneamento ecológico integral, com base em s...
Circular economy in the wine sector : assessment of the potential of seeds of p...
Afonso, Isabel Maria; Ferraz, Ana Isabel; Rodrigues, Ana Sofia; Vale, Ana Paula; Mendes, Susana; Alonso, Joaquim Mamede; Domingues, J.; Alves, M.The Horizon 2020 Strategic Plan considers 12 key areas to boost employment and growth, highlighting the use of waste as a resource through recycling, reuse and recovery of raw materials in the primary production process. In view of this strategic objective, Project WAW – Waste Around the Wine promoted by AMOG in partnership with ESAIPVC and twelve Portuguese companies of the wine sector, aims to contribute to t...