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Energies
Volume 13
Issue 8
10.3390/en13082040
Review Report
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Communication
Peer-Review Record

Pyro-Oil and Wax Recovery from Reclaimed Plastic Waste in a Continuous Auger Pyrolysis Reactor

Energies 2020, 13(8), 2040; https://doi.org/10.3390/en13082040
by Sultan Majed Al-Salem 1,*, Yang Yang 2, Jiawei Wang 2 and Gary Anthony Leeke 3
Reviewer 1:
Mika Horttanainen
Reviewer 2:
Phil Longhurst
Reviewer 3: Anonymous
Energies 2020, 13(8), 2040; https://doi.org/10.3390/en13082040
Submission received: 29 February 2020 / Revised: 28 March 2020 / Accepted: 3 April 2020 / Published: 20 April 2020
(This article belongs to the Section A: Sustainable Energy)

Round 1

Reviewer 1 Report

The article is interesting and important contribution to the research of plastic waste recovery. It is clearly presented but it has to be improved with some additions and clarifications.

The introduction should be completed with references to other research related to plastic waste recovery from landfills with mechanical and thermochemical methods. An important aspect in the recovery of plastic waste from landfills is the needs of mechanical treatment for plastics separation from other waste and soil materials and purification for recovery purposes. This should be introduced and taken more carefully into account both in introduction, discussions and conclusions, because it is much defining both technical and economic feasibility of the recovery.

There are several needs for clarifications and small additions in most of the chapters. I have added my detailed comments and requests for clarifications and additions to the commented manuscript attached to this statement. The comments have been added to the highlights in the text or to separate sticky notes.

Comments for author File: Comments.pdf

Author Response

Attached for your consideration 

Author Response File: Author Response.doc

Reviewer 2 Report

This well-structured and concisely written paper what makes a useful contribution to the currently niche field of landfill mining, albeit an area of growing importance. Research in this area has potential to grown significantly as priorities to address both coastal erosion where landfill sites are located, as well as infrastructure developments that will disturb existing sites, e.g. HS2 take place.

Overall, a useful contribution to the research field.

Author Response

Attached for your consideration 

Author Response File: Author Response.doc

Reviewer 3 Report

Dear Authors,

thank You for a good work. As the communication type of paper is well organized in a scientific sense, just a minor suggestion to add the discussion, how these recycling initiatives might influence Circular Economy Action plans. Similar study was published in 2019, MDPI Separations. You can refer to this work, as well as add some thoughts on if pyrolisis and gasification both might be used for recycling the RDF plastic

Author Response

Attached for your consideration 

Author Response File: Author Response.doc

Round 2

Reviewer 1 Report

I did not get answers to all of the questions I asked in my review but I think that the manuscript is now good and clear enough for publication.

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