Green Building Community

Transforming Sewage Sludge Into Green Energy

YijunW CA, United States 0 Ratings 134 Discussions 0 Group posts

Posted by: YijunW

Transform Sewage Sludge To a Source of Green Energy

When people told me that sewage sludge can be transformed into green energy, I thought, “What are you talking about?” Yes, I get that they are both green and environmentally friendly. But I could never link wastewater management to green energy— It just sounds too good to be true.

Then I started to look at how sewage sludge is treated. During the treatment process, the sludge is thickened by stirring to form larger and more rapidly settling aggregates. Then the sludge is dewatered, separating solids and liquids. However, how to handle of residual sludge from sewage treatment plants is a challenge to rural and metropolitan areas.

Now, people solve the problem by utilizing the sludge to produce biogas through a process called thermal hydrolysis and anaerobic digestion. It will produce biogas without the olfactory nuisance. It is hygienic: it controls health risks and secures agricultural use.

Sludge becomes our resources. It gives value to waste that previously possess threats to the Earth.

To read more, please visit:
https://en.wikipedia.org/wiki/Sewage_sludge_treatment#Treatment_processes
https://www.veolia.com/en/solution/sewage-sludge-green-energy-biogas-wastewater
https://extension.psu.edu/what-is-sewage-sludge-and-what-can-be-done-with-it

Reply

 

Please be kind and respectful!

Please make sure to be respectful of the organizations and companies, and other Rate It Green members that make up our community. We welcome praise and advice and even criticism but all posted content and ratings should be constructive in nature. For guidance on what constitutes suitable content on the Rate It Green site, please refer to the User Agreement and Site Rules.

The opinions, comments, ratings and all content posted by member on the Rate It Green website are the comments and opinions of the individual members who posts them only and do not necessarily reflect the views or policies or policies of Rate It Green. Rate It Green Team Members will monitor posted content for unsuitable content, but we also ask for the participation of community members in helping to keep the site a comfortable and open public forum of ideas. Please email all questions and concerns to admin@rateitgreen.com