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Clean Technologies, Volume 4, Issue 2

June 2022 - 23 articles

Cover Story: The impact of bioplastics on the waste management system is still not clear. This work shows for the first time a quantitative assessment of bioplastics waste management under the current organic, plastic, and mixed waste treatment process. From an economic point of view, organic, plastic, and mixed waste treatment routes have reached a similar total cost of the whole waste management system. The carbon footprint calculation has resulted in a significant environmental burden during anaerobic digestion and composting, while the mixed and plastic treatment routes have obtained similar benefits. Although the current amount of bioplastics does not affect the treatment of organic, plastic, and mixed wastes, it can strongly affect the quality of the output, compromising its further reuse. Therefore, specific improvement of waste treatment should be pursued. View this paper
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Articles (23)

  • Article
  • Open Access
18 Citations
5,524 Views
14 Pages

Carbon Footprint and Total Cost Evaluation of Different Bio-Plastics Waste Treatment Strategies

  • Giovanni Gadaleta,
  • Sabino De Gisi,
  • Francesco Todaro and
  • Michele Notarnicola

To address the problem of fossil-based pollution, bio-plastics have risen in use in a wide range of applications. The current waste management system still has some weakness for bio-plastics waste (BPW) treatment, and quantitative data is lacking. Th...

  • Article
  • Open Access
4 Citations
3,683 Views
15 Pages

Performance Evaluation of Roughened Solar Air Heaters for Stretched Parameters

  • Mustafa Alaskari,
  • Arwa M. Kadhim,
  • Ammar A. Farhan,
  • Moustafa Al-Damook and
  • Mansour Al Qubeissi

Artificial roughness applied to a Solar Air Heater (SAH) absorber plate is a popular technique for increasing its total thermal efficiency (ηt−th). In this paper, the influence of geometrical parameters of V-down ribs attached below the cor...

  • Article
  • Open Access
4 Citations
4,963 Views
13 Pages

Seasonal Efficiency of a Brine-to-Water Heat Pump with Different Control Options according to Ecodesign Standards

  • Jaime Sieres,
  • Ignacio Ortega,
  • Fernando Cerdeira,
  • Estrella Álvarez and
  • José M. Santos

The seasonal performance of a heat pump indicates its average performance during the heating and/or cooling season, taking into account the different energy demands and their variability over time. Several European and international regulations and p...

  • Article
  • Open Access
12 Citations
7,388 Views
13 Pages

Biodiesel is an emerging alternative fuel that is generally made from edible and non-edible oilseed crops. Jatropha curcus has a high potential for producing biodiesel, which yields 25–35% oil along with 75–65% solid byproduct, generally...

  • Article
  • Open Access
23 Citations
5,585 Views
17 Pages

This study examined the influence of ohmic heating (OH), compared to the conventional heating (Conven) and Control (solvent) methods, on the extraction of olive mill leaves. The main extraction parameters were: (i) solvent ratio (aqueous ethanol; 40%...

  • Perspective
  • Open Access
24 Citations
5,949 Views
10 Pages

Heavy metal removal using genetically engineered organisms (GEOs) offer more cost and energy-efficient, safer, greener, and environmentally-friendly opportunities as opposed to conventional strategies requiring hazardous or toxic chemicals, complex p...

  • Review
  • Open Access
32 Citations
5,456 Views
25 Pages

Studies have shown that the role of energy storage systems in human life is increasing day by day. Therefore, this research aims to study the latest progress and technologies used to produce energy storage systems. It also discusses and compares the...

  • Article
  • Open Access
5 Citations
5,470 Views
19 Pages

Planning a Notable CCS Pilot-Scale Project: A Case Study in France, Paris Basin—Ile-de-France

  • Fernanda M. L. Veloso,
  • Isaline Gravaud,
  • Frédéric A. Mathurin and
  • Sabrine Ben Rhouma

Few commercial-scale carbon capture and storage (CCS) projects are currently operating in the world, with almost all in the USA and China. Despite a high number of CCS pilot-scale projects achieved in Europe, only two commercial-scale projects are op...

  • Feature Paper
  • Article
  • Open Access
2 Citations
3,585 Views
18 Pages

Correlations of Seismic Velocities and Elastic Moduli with Temperature in Superhot and Enhanced Geothermal Systems

  • Dimitrios Mendrinos,
  • Constantine Karytsas,
  • Spyridon Karytsas,
  • Flavio Poletto,
  • Biancamaria Farina and
  • Erika Barison

This paper presents correlations derived by linear regression analysis of seismic velocities VP and VS and elastic moduli EP and ES with temperature in Los Humeros superhot (SHGS) and Acoculco enhanced (EGS) geothermal systems at depths down to 3 km...

  • Article
  • Open Access
17 Citations
4,531 Views
20 Pages

Wood Biochar Enhances the Valorisation of the Anaerobic Digestion of Chicken Manure

  • Tien Ngo,
  • Leadin S. Khudur,
  • Ibrahim Gbolahan Hakeem,
  • Kalpit Shah,
  • Aravind Surapaneni and
  • Andrew S. Ball

In this study, the efficacy of biochar to mitigate ammonia stress and improve methane production is investigated. Chicken manure (CM) was subjected to high-solid mesophilic anaerobic digestion (15% total solid content) with wood biochar (BC). Wood bi...

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Clean Technol. - ISSN 2571-8797Creative Common CC BY license