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Processes, Volume 9, Issue 10

October 2021 - 171 articles

Cover Story: Whey is a primary by-product of dairy plants, and one that is often difficult to manage. One possible solution to this problem is using advanced and efficient digesters. The aim of this study was to present an innovative multisection hybrid anaerobic bioreactor (M-SHAR) design and to identify how microwave radiation heating (MRH) affects methane fermentation of liquid dairy waste (LDW) primarily composed of acid whey. The direction of the research is important because the effect of microwave radiation on biochemical processes has not yet been fully explored. The MRH reactor was found to perform better in terms of COD removal and biogas production compared with the convection-heated reactor. The present study indicates that MRH improves the stability and efficiency of methane fermentation at higher organic load rates. View this paper
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Articles (171)

  • Feature Paper
  • Article
  • Open Access
8 Citations
3,078 Views
18 Pages

Alkali and Alkali-Earth Metals Incorporation to Ni/USY Catalysts for CO2 Methanation: The Effect of the Metal Nature

  • M. Carmen Bacariza,
  • Cláudia Grilo,
  • Paula Teixeira,
  • José M. Lopes and
  • Carlos Henriques

18 October 2021

CO2 methanation is typically carried out using Ni-supported catalysts containing promoters such as alkali or alkali-earth metals to improve their properties. In this work, bimetallic Ni-based USY zeolite catalysts containing alkali (Li, K and Cs) and...

  • Article
  • Open Access
5 Citations
4,216 Views
11 Pages

18 October 2021

Transfer chutes for bulk material conveying systems have significant importance in ship loading and unloading and are ‘worn’ from large mass flow and fast granular material flow conditions. In this investigation, the impact forces of different granul...

  • Feature Paper
  • Article
  • Open Access
2,817 Views
11 Pages

18 October 2021

The process of upsetting, with rotating dies, is used to reduce the force required to deform the workpiece and to receive more homogeneous deformation compared to the same process without the rotational motion of the dies. The upper bound method is a...

  • Feature Paper
  • Article
  • Open Access
5 Citations
2,989 Views
19 Pages

18 October 2021

It is a challenge to identify the parameters of a mechanism model under real-time operating conditions disrupted by uncertain disturbances due to the deviation between the design requirement and the operational environment. In this paper, a novel app...

  • Article
  • Open Access
12 Citations
2,688 Views
15 Pages

Voltage Stability Index Using New Single-Port Equivalent Based on Component Peculiarity and Sensitivity Persistence

  • Muhammad Shoaib Bhutta,
  • Muddassar Sarfraz,
  • Larisa Ivascu,
  • Hui Li,
  • Ghulam Rasool,
  • Zain ul Abidin Jaffri,
  • Umer Farooq,
  • Jamshed Ali Shaikh and
  • Muhammad Shahzad Nazir

18 October 2021

A voltage stability index is proposed using a new single-port equivalent depending on component peculiarity representation and sensitivity persistence to locate and determine long-term voltage instability in transmission and distribution power networ...

  • Feature Paper
  • Article
  • Open Access
6 Citations
5,242 Views
14 Pages

Understanding Slovakian Gas Well Performance and Capability through ArcGIS System Mapping

  • Gabriel Wittenberger,
  • Jozef Cambal,
  • Erika Skvarekova,
  • Andrea Senova and
  • Ingrid Kanuchova

18 October 2021

There are two important territories in Slovakia with functioning gas well operations: the Eastern Slovak Lowland and the Vienna Basin. This article focuses on the creation of electronic monitoring and graphical mapping of the current technical condit...

  • Communication
  • Open Access
20 Citations
6,591 Views
14 Pages

17 October 2021

Biofuels have many environmental and practical benefits as a transportation fuel. They are among the best alternatives to fossil fuels- thanks to their capacity for negative carbon emissions, which is vital for archiving the global ambition of a net-...

  • Feature Paper
  • Article
  • Open Access
2 Citations
6,206 Views
13 Pages

Acidic and Heat Processing of Egg Yolk Dispersions

  • José Manuel Aguilar,
  • Manuel Felix,
  • Yolanda López-González,
  • Felipe Cordobés and
  • Antonio Guerrero

17 October 2021

Egg yolk is a multifunctional ingredient widely used in many food products, wherein proteins are the dominant component contributing to this functionality. However, the potential risk of foodborne illness associated with egg use forces us to ensure t...

  • Feature Paper
  • Review
  • Open Access
87 Citations
36,748 Views
14 Pages

16 October 2021

Over recent years, the food industry has striven to reduce waste, mostly because of rising awareness of the detrimental environmental impacts of food waste. While the edible oils market (mostly represented by soybean oil) is forecasted to reach 632 m...

  • Feature Paper
  • Article
  • Open Access
40 Citations
5,768 Views
18 Pages

Polyphenolic Characterization and Antioxidant Capacity of Laurus nobilis L. Leaf Extracts Obtained by Green and Conventional Extraction Techniques

  • Erika Dobroslavić,
  • Ivona Elez Garofulić,
  • Zoran Zorić,
  • Sandra Pedisić and
  • Verica Dragović-Uzelac

16 October 2021

Laurus nobilis L. is an evergreen Mediterranean shrub whose leaves have been known for various health-promoting effects mainly attributed to polyphenols. Microwave- (MAE) and ultrasound-assisted extraction (UAE) are green extraction techniques that e...

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Processes - ISSN 2227-9717