Utilization of post-production waste from fruit processing for energetic purposes: analysis of Polish potential and case study

2018 ◽  
Vol 20 (3) ◽  
pp. 1878-1883 ◽  
Author(s):  
Adam J. Lipiński ◽  
Seweryn Lipiński ◽  
Paweł Kowalkowski
Keyword(s):  
Production Waste ◽  
Fruit Processing ◽  
Post Production

scholarly journals Case Study on Numerical Calculation of a Disc Bush in the Disc Harrow in the Welding Version

Mechanika ◽  
2021 ◽  
Vol 27 (6) ◽  
pp. 513-520
Author(s):  
Paweł LONKWIC ◽  
Ireneusz USYDUS ◽  
Arkadiusz TOFIL ◽  
Tomasz KRAKOWSKI ◽  
Hubert RUTA ◽  
...  
Keyword(s):  
Numerical Calculation ◽  
Economic Factor ◽  
Production Waste ◽  
Agricultural Machinery ◽  
Production Processes ◽  
Design Changes ◽  
Current Production ◽  
Post Production ◽  
Product Effect

The optimization of production processes in companies comes down to two main measures influencing the economic factor. The first one is the reduction of interval micro-periods between operations, and the second is to use post-production waste as much as possible. These treatments apply to virtually all industries regardless of the final product effect. This article describes the application of a special welding device for welding the workpiece with a bush type, designed for fixing the plate in the plate gun. As a result of its application, a significant reduction of time needed to produce one bush has been achieved, and thus the amount of time in a unit of time has been increased. As part of the implementation work, the bush design changes were also made, which made it possible to reduce post-production waste not suitable for current production, but allowing its use for other purposes. The results of the work were implemented in the company producing agricultural machinery in Lublin.

scholarly journals True Colors: Chromaticity, Realism and Technological Honesty

2021 ◽  
Vol 9 (17) ◽  
pp. 79-99
Author(s):  
Andrew I. Iain Philip
Keyword(s):  
Comparative Case Study ◽  
Ethical Implications ◽  
Agential Realism ◽  
Film Image ◽  
Colour System ◽  
Post Production ◽  
True Colors

I propose an application of agential realism to my practice as research, a film about my mother getting one tattoo covered with a new one, to investigate the material-discursive role played by the camera in determining meaning within the film image. I use my practice as a comparative case study, considering how a specific camera apparatus determines and negotiates standards of colour accuracy, and what it means to remove those colour values in post-production. I argue that the different colour processing of the same footage produces perceptible onto-epistemological difference, even while it remains indexically equivalent. Second, I will show exactly how this particular digital photosensitive technology meets the pro-filmic event to record colour, enacting agencies that reduce matter to fit a specifically programmed colour system, prior to any manipulation in post-production. The system itself draws the boundaries of accuracy it claims to achieve, with inevitable ethical implications.

scholarly journals Specification of Environmental Consequences of the Life Cycle of Selected Post-Production Waste of Wind Power Plants Blades

Materials ◽  
2021 ◽  
Vol 14 (17) ◽  
pp. 4975
Author(s):  
Katarzyna Piotrowska ◽  
Izabela Piasecka
Keyword(s):  
Life Cycle ◽  
Power Plant ◽  
Wind Power ◽  
Power Plants ◽  
Polymer Materials ◽  
Production Waste ◽  
Wind Power Plant ◽  
Environmental Consequences ◽  
Wind Power Plants ◽  
Post Production

Wind power plants during generation of electricity emit almost no detrimental substances into the milieu. Nonetheless, the procedure of extraction of raw materials, production of elements and post-use management carry many negative environmental consequences. Wind power plant blades are mainly made of polymer materials, which cause a number of problems during post-use management. Controlling the system and the environment means such a transformation of their inputs in time that will ensure the achievement of the goal of this system or the state of the environment. Transformations of control of system and environment inputs, for example, blades production, are describing various models which in the research methodology, like LCA (Life Cycle Assessment), LCM (Life Cycle Management), LCI (Life Cycle Inventory), etc. require meticulous grouping and weighing of life cycle variables of polymer materials. The research hypothesis was assuming, in this paper, that the individual post-production waste of wind power plant blades is characterized by a different potential impact on the environment. For this reason, the aim of this publication is to conduct an ecological and energy life cycle analysis, evaluation, steering towards minimization and development (positive progress) of selected polymer waste produced during the manufacture of wind power plant blades. The analyzes were based on the LCA method. The subject of the research was eight types of waste (fiberglass mat, roving fabric, resin discs, distribution hoses, spiral hoses with resin, vacuum bag film, infusion materials residues and surplus mater), which are most often produced during the production of blades. Eco-indicator 99 and CED (Cumulative Energy Demand) were used as the computation procedures. The influence of the analyzed objects on human health, ecosystem quality and resources was appraised. Amidst the considered wastes, the highest level of depreciating impact on the milieu was found in the life cycle of resin discs (made of epoxy resin). The application of recycling processes would decrease the depreciating environmental influence in the context of the total life cycle of all analyzed waste. Based on the outcome of the analyzes, recommendations were proposed for the environmentally friendly post-use management of wind power plant blades, that can be used to develop new blade manufacturing techniques that better fit in with sustainable development and the closed-cycle economy.

scholarly journals Adsorptive Recovery of Cd(II) Ions with the Use of Post-Production Waste Generated in the Brewing Industry

Energies ◽  
2021 ◽  
Vol 14 (17) ◽  
pp. 5543
Author(s):  
Tomasz Kalak ◽  
Jakub Walczak ◽  
Malgorzata Ulewicz
Keyword(s):  
Low Cost ◽  
Sorption Isotherms ◽  
Production Waste ◽  
Brewing Industry ◽  
Waste Products ◽  
Ir Spectrometry ◽  
Global Trends ◽  
Adsorptive Recovery ◽  
Ft Ir ◽  
Post Production

Post-production waste generated in the brewing industry was used to analyze the possibility of Cd(II) ion recovery in biosorption processes. Brewer’s grains (BG), which are waste products from beer manufacturing processes, are a promising material that can be reused for biosorption. The biomass contains appropriate functional groups from fats, proteins, raw fibers, amino acids, carbohydrates and starch, showing a strong affinity for binding metal ions and their removal from wastewater. The biosorbent material was characterized by several research methods, such as particle size distribution, elemental composition and mapping using SEM-EDX analysis, specific surface area and pore volume (BET, BJH), thermogravimetry, electrokinetic zeta potential, SEM morphology and FT-IR spectrometry. Initial and equilibrium pH, adsorbent dosage, initial metal concentration and contact time were parameters examined in the research. The highest biosorption efficiency was obtained at a level of 93.9%. Kinetics analysis of the processes and sorption isotherms were also carried out. Based on the conducted experiments, it was found that this material has binding properties in relation to Cd(II) ions and can be used for wastewater treatment purposes, being a low-cost biosorbent. This research studies are in line with current global trends of circular and sustainable economies.

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