scholarly journals Understanding the effect of Ca and Mg ions from wastes in the solvent regeneration stage of a biogas upgrading unit

2019 ◽  
Vol 691 ◽  
pp. 93-100 ◽  
Author(s):  
Francisco M. Baena-Moreno ◽  
Mónica Rodríguez-Galán ◽  
T.R. Reina ◽  
Zhien Zhang ◽  
Luis F. Vilches ◽  
...  
2020 ◽  
Vol 28 (3) ◽  
pp. 323-333
Author(s):  
Sergej V. Ivanov ◽  
Ilya S. Ivanov ◽  
Evgenij G. Obyedkov ◽  
Liliya P. Popova

Aim. To study the influence of deproteinized dialysate from blood of milk-fed calves on the type of exudative discharge and dynamics of inflammatory reaction after hernia repair with plastics of the anterior abdominal wall with hernioendoprosthesis of polypropylene. Materials and Methods. The study involved 59 patients being on stationary treatment in the surgical department of Kursk Regional Clinical Hospital. Patients were hospitalized for the herniation of small or medium dimension. The patients were divided to two groups: the main (n=30) and control (n=29) groups. After endoprosthetics, the patients of the control group were given complex conservative treatment. The patients of the main group, besides standard treatment, were administered deproteinized dialysate from blood of milk-fed calves intravenously in drips 10 ml + 200 ml of 0.9% sodium chloride solution within 7 days. For cytological examination and determination of the type of cytograms, the traumatic discharge was collected and analyzed using the method of M.F. Kamaev and M.A. Palthsev. Results. Cytomorphometric examination was conducted on the third, fifth and seventh day after endoprosthetics with the aim of studying dynamic changes. Determination of cell composition and also of its changes characteristic of each studied period, was necessary for obtaining further information characterizing inflammatory process in the region of placement of the endoprosthesis. After endoprosthetics in patients who were administered hemodialysate, the inflammatory reaction was less pronounced than in patients who did not receive the preparation. This was associated with a more dynamic change of stages of the inflammatory process. In patients of the main group who received deproteinized dialysate, regenerative type of inflammation first appeared on the fifth day and made 6.9%; by the seventh day the share of patients with the regenerative type rose to 17.5%, while in the patients of the control group no regeneration stage was observed in both periods. Conclusion. Analysis of the efficiency of influence of hemodialysate on the inflammatory reaction in plastics of the anterior abdominal wall with polypropylene endoprosthesis evidences faster course of all stages of inflammation and reduction of its intensity by 10%.


2019 ◽  
Author(s):  
Randi Neerup ◽  
Susana Almeida ◽  
Kay Thomsen ◽  
Rasmus Find ◽  
Niels Z. R. Larsen ◽  
...  

2021 ◽  
Vol 245 ◽  
pp. 114550
Author(s):  
Seyedeh Nashmin Elyasi ◽  
Li He ◽  
Panagiotis Tsapekos ◽  
Shahin Rafiee ◽  
Benyamin Khoshnevisan ◽  
...  
Keyword(s):  

2021 ◽  
pp. 125694
Author(s):  
Parisa Ghofrani Isfahani ◽  
Panagiotis Tsapekos ◽  
Maria Peprah ◽  
Panagiotis Kougias ◽  
Xinyu Zhu ◽  
...  

2021 ◽  
Vol 243 ◽  
pp. 114363
Author(s):  
Ahmad Naquash ◽  
Muhammad Abdul Qyyum ◽  
Junaid Haider ◽  
Hankwon Lim ◽  
Moonyong Lee

Energies ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2424
Author(s):  
Jan Martin Zepter ◽  
Jan Engelhardt ◽  
Tatiana Gabderakhmanova ◽  
Mattia Marinelli

Biogas plants may support the transformation towards renewable-based and integrated energy systems by providing dispatchable co-generation as well as opportunities for biogas upgrading or power-to-X conversion. In this paper, a simulation model that comprises the main dynamics of the internal processes of a biogas plant is developed. Based on first-order kinetics of the anaerobic digestion process, the biogas production of an input feeding schedule of raw material can be estimated. The output of the plant in terms of electrical and thermal energy is validated against empirical data from a 3-MW biogas plant on the Danish island of Bornholm. The results show that the model provides an accurate representation of the processes within a biogas plant. The paper further provides insights on the functioning of the biogas plant on Bornholm as well as discusses upgrading potentials of biogas to biomethane at the plant from an energy perspective.


Author(s):  
Francisco M. Baena‐Moreno ◽  
Mónica Rodríguez‐Galán ◽  
Fernando Vega ◽  
Isabel Malico ◽  
Benito Navarrete

Author(s):  
Jose Antonio Medrano ◽  
Margot Anabell Llosa-Tanco ◽  
David Alfredo Pacheco Tanaka ◽  
Fausto Gallucci

2018 ◽  
Vol 565 ◽  
pp. 194-202 ◽  
Author(s):  
Chunfeng Song ◽  
Zhichao Fan ◽  
Run Li ◽  
Qingling Liu ◽  
Yutaka Kitamura

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