Which scope covers ETP sludge a Vapi dye unit sends to a cement kiln?
Waste you send off site, including sludge sent for co-processing in a cement kiln, is Scope 3 category 5. The kiln's combustion emissions are the cement plant's Scope 1, not yours. Record tonnes sent and the receiver for each load.
What to record
Tonnes of sludge per load, from the manifest.
The receiving facility and the treatment route.
Transport
The trucking to the kiln is also Scope 3 if you pay for it.
What Senseible does here
Senseible reads the energy invoices behind the making stage into a fingerprinted Scope 1 and 2 record, and keeps material invoices on the Scope 3 trail. Material factors come from your supplier or a named database and are labelled with their source, so the product figure can be traced line by line.
Sources: GHG Protocol Corporate Value Chain (Scope 3) Standard, GHG Protocol Corporate Standard
Last reviewed 2026-10-21.