6 documents found, page 1 of 1
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...
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 C. C.The 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...
Estudo de biodegradabilidade de efluentes agropecuários e agroindustriais em pr...
Coura, Renata D'arcPerante as crescentes preocupações com o aumento da procura energética e as alterações climáticas, aliadas à grande quantidade de resíduos orgânicos gerados por atividades antropogénicas, que ainda carecem de tratamento adequado devido ao seu impacte no meio ambiente, torna-se necessário o desenvolvimento de tecnologias limpas para tratamento de resíduos tendo em vista a sua valorização energética. Neste contex...