_:nca8755e6d3aa44f3ba6bbd82ecdf7dbdxb0
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.boquinstrument.com/should-cod-or-bod-be-used-to-represent-the-carbon-source-in-activated-sludge-process>