Waste as Resource for Pakistan: An Innovative Business Model of Regenerative Circular Economy to Integrate Municipal Solid Waste Management Sector

Round 1

Reviewer 1 Report

      Sustainability

      23- Feb- 2023

Article reference: Sustainability ID-2248147

 

"Waste as Resource for Pakistan: An Innovative Business Model of Regenerative Circular Economy to Integrate Municipal Solid Waste Management Sector"

 

 

Recommendation: Minor revision.

 

Comments to author(s):

This is an interesting study, and the paper is generally well written and structured. The article is recommended for publication after the following minor concerns are addressed.

- Introduction:

-  There more reverence work should add to introduction part support the circular economy.

Results and discussion:

- Equations for calculation of the value of A(Rv), WS and SA should be proved by possible references.

- Resources recovery for all categories should respectively calculated to to stimulate the trend towards a circular economy

I recommended the article publishing in a sustainability journal after addressing minor comments.

Best Regards

      Sincerely yours

 

Author Response

This is an interesting study, and the paper is generally well written and structured. The article is recommended for publication after the following minor concerns are addressed.

Introduction:

Comment-1;

•  There more reverence work should add to introduction part support the circular economy.

Reply;

• Thanks for the valuable suggestion. compliance ensured at page 2 & 3.

Results and discussion:

Comment - 2;

• Equations for calculation of the value of A(Rv), WS and SA should be proved by possible references.

Reply;

• equations for calculations are by the authors.

Comment - 3;

• Resources recovery for all categories should respectively calculated to to stimulate the trend towards a circular economy

Reply;

Compliance is ensured on page 19, i.e., figure 19.

 

I recommended the article publishing in a sustainability journal after addressing minor comments.

Reviewer 2 Report

Materials and methods:

line: 170 said: an innovative municipal SWM business model [31] is proposed..... If is innovative I think is something new, but there is a reference [31] is then innovative or was improved some methodology.

Results and discussion

The estimated population of Islamabad, the capital city of Pakistan, is approximately 258 2.6 million [20]. The city’s estimated MSW generation is 1534 t/d, with an average house-259 hold waste generation rate of 0.59 kg/c/d [38]. The current municipal solid waste (MSW) 260 generation and composition for the city are depicted in Table 1.

It seem be more part of materials and method and no results. Similar phrases in found in all manuscript

There is little or no comparison with other works that applied some model to treat the same problem.

Author Response

Materials and methods:

Comment - 1;

line: 170 said: an innovative municipal SWM business model [31] is proposed..... If is innovative I think is something new, but there is a reference [31] is then innovative or was improved some methodology.

Reply;

Thanks for the guidance. The idea is new for circularity and is explained in figure 1 on page 4. 

Results and discussion

Comment - 2;

The estimated population of Islamabad, the capital city of Pakistan, is approximately 258 2.6 million [20]. The city’s estimated MSW generation is 1534 t/d, with an average house-259 hold waste generation rate of 0.59 kg/c/d [38]. The current municipal solid waste (MSW) 260 generation and composition for the city are depicted in Table 1.

It seem be more part of materials and method and no results. Similar phrases in found in all manuscript

Reply;

manuscript improved as per your kind suggestion.

Comment - 3;

There is little or no comparison with other works that applied some model to treat the same problem.

Reply;

Thanks for the valuable suggestion. comparison added in table 4. It really helped to improve the manuscript. The authors appreciate valuable suggestions.

Reviewer 3 Report

The authors did an interesting work for waste management. This work is vital to improve waste management economic efficiency. There are some comments to improve this manuscript as follows..

 

1. The working loadings are a lot. But the novelty is not clearly stated, please highlight your contribution to make sure the readers can easily get it.

2. In 3.3, it uses estimation tool for GHG emissions from Japan. Does it require correction factor when applied in Pakistan?

3. For cost analysis, did the authors consider the construction and operation cost? Please make it clear.

4. The results and discussion section should be enhanced by comparing with other works, this will definitely enrich your study.  

5. Some figures with world-wide novel research should be described and discussed with more details to emphasize the state-of-the-art-review all over the world novelty.

6. In line 287, what is economic potential? What is the data source? Please give more details.

7. The quality of some pictures needs to be improved, such as Figure 2/4/8.

Author Response

The authors did an interesting work for waste management. This work is vital to improve waste management economic efficiency. There are some comments to improve this manuscript as follows..

Comment;

1. The working loadings are a lot. But the novelty is not clearly stated, please highlight your contribution to make sure the readers can easily get it.

Reply;

• the contributions are highlighted. the novelty of the work is explained on the page. 4. and figure 1. 

comment;

2. In 3.3, it uses estimation tool for GHG emissions from Japan. Does it require correction factor when applied in Pakistan?

Reply;

• The emission calculator has the option to add the location of the city with the climatic zone. It covers the sub-continental region.

Comment;

3. For cost analysis, did the authors consider the construction and operation cost? Please make it clear.

Reply;

• explained in Lines 330 and 331 explained.

Comment;

4. The results and discussion section should be enhanced by comparing with other works, this will definitely enrich your study.  

Reply;

• Thanks for the valuable suggestion. compliance ensure on page 17 in table 4. 

Comment;

5. Some figures with world-wide novel research should be described and discussed with more details to emphasize the state-of-the-art-review all over the world novelty.

Reply;

• compliance ensured in Tables 1 and 4.

Comment;

6. In line 287, what is economic potential? What is the data source? Please give more details.

Reply; 

• Explained in line 410 and figure 17 and 18a.

Comment;

7. The quality of some pictures needs to be improved, such as Figure 2/4/8.

Reply;

• compliance ensured 

Round 2

Reviewer 3 Report

accept in current version

Author Response

12