This recent publication is excellent on this topic. Depsite the title, it is mostly about sanitation, and despite the subtitle, it is a lot about non-sewered sanitation:
www.globalwaterintel.com/water-without-carbon

This is very useful for our work in Bangladesh on sanitation. Can I get a copy of this report?

Regards
Shahidul Islam
Project Manager
SNV Netherlands Development Organisation
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Hi Shahidul,
You can download the report from the link that Rémi provided above or here:  my.globalwaterintel-insights.com/l/2DC/carbonfootprintwp

It seems that one has to register (for free) to be able to download the report.

Thanks, Rémi for alerting us to this publication!

Regards,
Elisabeth

Hi Arunkumar,
This may be quite late but I do know that you can use the EASETECH Life cycle assessment model for calculating GHG emissions from an entire solid waste management system. You can find out more about the tool at www.easetech.dk and also get in touch with the team at DTU to learn more. And you can also see several publications with case studies in which the tool has been used. The tool is typically availed free of charge for academic use.

Kind regards,
Daniel