Results 11 to 20 of about 1,286,063 (201)

Green Preparation of Fluorescent Nitrogen-Doped Carbon Quantum Dots for Sensitive Detection of Oxytetracycline in Environmental Samples

Nanomaterials, 2020
Nitrogen-doped carbon quantum dots (N-CQDs) with strong fluorescence were prepared by a one-step hydrothermal method using natural biomass waste. Two efficient fluorescent probes were constructed for selective and sensitive detection of oxytetracycline ...
Rong Gao, Zhibin Wu, Li Wang, Jiao Liu, Yijun Deng, Zhihua Xiao, Jun Fang, Yunshan Liang   +7 more
doaj   +1 more source

Biogas production and composition optimization in an anaerobic digestor using cheese whey and swine manure as substrate

Acta Scientiarum: Technology, 2022
The search for new sources of energy has intensified these days due to the environmental impacts caused by fossil fuels. The tripod composed of energy, food and water is the base of human existence.
Letí­cia Ribeiro Machado, Adriano Henrique Ferrarez, Jader Lugon Junior, Fernando César Alves   +3 more
doaj   +1 more source

Avaliação de desempenho de reator UASB no tratamento de águas residuárias de suinocultura Evaluation of performance of UASB reactor in swine wastewater treatment

Revista Brasileira de Engenharia Agrícola e Ambiental, 2010
Este trabalho apresenta o desenvolvimento e a avaliação de um sistema de tratamento de águas residuárias de suinocultura constituído de decantador e seguido de reator anaeróbio de manta de lodo (reator UASB), em escala real.
Luciano S. Rodrigues, Israel J. da Silva, Manon C. de O. Zocrato, Débora N. Papa, Marcos V. Sperling, Paulo R. de Oliveira   +5 more
doaj   +1 more source

Effects of black soldier fly larvae as protein or fat sources on apparent nutrient digestibility, fecal microbiota, and metabolic profiles in beagle dogs

Frontiers in Microbiology, 2022
Black soldier fly (Hermetia illucens) larvae (BSFL) act as a biological system converting organic waste into protein and fat with great potential application as pet food.
Shiyan Jian, Limeng Zhang, Ning Ding, Kang Yang, Zhongquan Xin, Minhua Hu, Zhidong Zhou, Zhihong Zhao, Baichuan Deng, Jinping Deng   +9 more
doaj   +1 more source

Environmentally superior technologies for swine waste management

Water Science and Technology, 2004
The high nitrogen content of animal waste provides opportunities for processing to marketable byproducts and challenges for proper management to avoid harmful impacts. Technologies are being developed to conserve and utilize nitrogen as well as other valuable constituents in animal waste.
F J, Humenik, J M, Rice, C L, Baird, R, Koelsch   +3 more
openaire   +2 more sources

Desempenho de reatores anaeróbios de fluxo ascendente com manta de lodo em dois estágios tratando águas residuárias de suinocultura Performance of two-stage up flow anaerobic sludge blanket reactors treating swine wastewater

Engenharia Agrícola, 2005
Avaliou-se o desempenho de dois reatores anaeróbios de fluxo ascendente com manta de lodo (UASB) em escala-piloto com volumes de 908 L e 188 L, instalados em série, alimentados com águas residuárias de suinocultura com concentrações médias de sólidos ...
Adriana M. de Santana, Roberto A. de Oliveira   +1 more
doaj   +1 more source

Evaluation of the effect of the indoor environment on the physiological responses of early-gestation sows in a commercial house in China

Frontiers in Veterinary Science, 2023
ObjectiveThe environment influences the sow's health and physiology during gestation. This study was conducted to evaluate indoor environmental parameters and physiological responses of early-gestation sows and investigate the possible methods for ...
Yangyang Li, Tong Li, Bin Shang, Yang Zhao, Xiuping Tao, Feng Peng, Xiaojun Zou, Sixin Zhang   +7 more
doaj   +1 more source

Microbiological aspects of aerobic thermophilic treatment of swine waste [PDF]

Applied and Environmental Microbiology, 1990
A thermophilic strain (D2) identified as a Bacillus sp. was isolated from an aerobic digestor of swine waste after several months of operation at 55 degrees C. Aerobic thermophilic batch treatment of swine waste inoculated with strain D2 was studied in a 4-liter fixed-bed reactor.
R, Beaudet, C, Gagnon, J G, Bisaillon, M, Ishaque   +3 more
openaire   +2 more sources

Desempenho de processo anaeróbio em dois estágios (reator compartimentado seguido de reator UASB) para tratamento de águas residuárias de suinocultura Performance of two-stage anaerobic process (baffled reactor (ABR) followed by an upflow sludge blanket reactor (UASB)) treating swine wastewater

Engenharia Agrícola, 2006
Avaliou-se o efeito das águas residuárias de suinocultura com concentrações de sólidos suspensos totais em torno de 6.000 mg L-1 (DQOtotal variando de 7.557 a 11.640 mg L-1) no desempenho de processo anaeróbio em dois estágios compostos por reator ...
Gracie F. R. Fernandes, Roberto A. de Oliveira   +1 more
doaj   +1 more source

ENVIRONMENTAL IMPACTS OF SWINE FARMING

Environmental Smoke, 2022
In this study we carried out bibliographical research on the impacts that pig production can cause on the environment, highlighting what is necessary for its production. During the research, some current manuscripts on this theme were used in the Google
Soraya Abrantes Pinto De Brito, Grazielly Diniz Duarte, Felipe Eduardo da Silva Sobral , Martin Lindsey Christoffersen   +3 more
doaj   +1 more source