Neighborhood-Scale Urban Water Reclamation with Integrated Resource Recovery for Establishing Nexus City in Munich, Germany: Pipe Dream or Reality?
Round 1
Reviewer 1 Report
Dear Authors, this paper is very well written. I like the paper and thank you for the opportunity to read yours work.
Best regards!
Author Response
Reviewer 1:
Comment 1: Dear Authors, this paper is very well written. I like the paper and thank you for the opportunity to read yours work.
Response: Thank you very much for the positive feedback!
Reviewer 2 Report
This manuscript analyzed the feasibility of a decentralized water reclamation system targeting Maxvorstadt, which is a high-density neighborhood of Munich in Germany. I believe this is a good attempt to establish a water-energy-food nexus and decentralized water reclamation system. The theoretical approach is valid and previous examples are well-arranged. I only have a couple of comments below.
- Section 1. State-of-the-Art of water reclamation with resource recovery in Europe: The authors provided five case studies of water reclamation in Europe. However, there is a huge gap between the capacities of the reclamation system in case studies and study site (i.e., Maxvorstadt). Although the authors address that this study is highly hypothetical, the inaccuracy of the results caused by various hypotheses and scale difference needs to be given in detail.
- L250: Tables in SM and manuscript should have separate numbering. Table 7 in the manuscript should be Table 1.
- L289: Please revise the error sentence.
Author Response
Reviewer 2:
This manuscript analyzed the feasibility of a decentralized water reclamation system targeting Maxvorstadt, which is a high-density neighborhood of Munich in Germany. I believe this is a good attempt to establish a water-energy-food nexus and decentralized water reclamation system. The theoretical approach is valid and previous examples are
well-arranged. I only have a couple of comments below.
Comment 1: Section 1. State-of-the-Art of water reclamation with resource recovery in Europe: The authors provided five case studies of water reclamation in Europe. However,
there is a huge gap between the capacities of the reclamation system in case studies and study site (i.e., Maxvorstadt). Although the authors address that this study is highly hypothetical, the inaccuracy of the results caused by various hypotheses and scale difference needs to be given in detail.
Response: Thank you very much for this very valid comment. A paragraph has been added to elaborate on this point after L687.
Comment 2: L250: Tables in SM and manuscript should have separate numbering. Table 7 in the manuscript should be Table 1.
Response: Yes, thank you, this mistake has been corrected.
Comment 3: L289: Please revise the error sentence.
Response: Yes, thank you, there was a word missing indeed, this has been corrected.
Reviewer 3 Report
The article presented to resources (MDPI) titled "Neighborhood-scale urban water reclamation with integrated resource recovery for establishing Nexus City in Munich, Germany: pipe dream or reality?", is quite interesting and have some discussions that are not quite clear to policymakers over the world.
The alternative discussed is related to decentralized centers to neighborhoods. This kind of idea may be expanded to poor countries that have a center with high structure, but the most needy communities with low/none public investments.
The study shows the advantages of such a solution. And how to use the natural resources.
There are some significant problems with tables (number); the first table is considered Table 7. There is a reference in the middle of the text relating to Table 2. Moreover, some may think that this is a part of PhD thesis or master's dissertation, which is ok, but it needs some serious review.
In the results, there is a cost analysis; authors could make a diagram to fit the usual science reviews, which must have some discussions and the figures usually show a trend that is not so obvious in the text.
Author Response
Reviewer 3:
The article presented to resources (MDPI) titled "Neighborhood-scale urban water reclamation with integrated resource recovery for establishing Nexus City in Munich, Germany: pipe dream or reality?", is quite interesting and have some discussions that are not quite clear to policymakers over the world. The alternative discussed is related to decentralized centers to neighborhoods. This kind of idea may be expanded to poor countries that have a center with high structure, but the most needy communities with low/none public investments. The study shows the advantages of such a solution. And
how to use the natural resources.
Comment 1: There are some significant problems with tables (number); the first table is considered Table 7. There is a reference in the middle of the text relating to Table 2.
Response: Yes indeed, this mistake has been corrected.
Comment 2: Moreover, some may think that this is a part of PhD thesis or master's dissertation, which is ok, but it needs some serious review.
Response: Thank you, we have reviewed and improved the text in select places accordingly.
Comment 3: In the results, there is a cost analysis; authors could make a diagram to fit the usual science reviews, which must have some discussions and the figures usually show a trend that is not so obvious in the text.
Response: Yes, a table has been added to make the capital costs of the alternative system clearer.
Round 2
Reviewer 3 Report
The Authors have adressed to my comments acordingly. I think the article may be suitable for publicaton.
