Talk:Construction and demolition waste
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[edit] Hydrogen sulfide claim
- Plasterboard is broken down in landfill conditions releasing hydrogen sulphide, a toxic gas.
Plasterboard is mainly calcium sulfate, and quite stable and non-toxic material. It is possible to turn sulfates into sulfides, but to do it chemically takes such extreme conditions it could not occur in landfill. It might occur biologically through the action of sulfate-reducing bacteria but these once again have unusual habitat requirements. And on the other hand, there is a much simpler explanation for hydrogen sulfide production from landfill: anaerobic bacterial digestion of many proteins will release it. -- Securiger (talk) 11:19, 9 March 2008 (UTC)
