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Firewater containment
Firewater containment is the process of containing (fire water) the run-off from fighting fires. Firewater contains many hazardous substances which are the by-products of combustion which turns normally safe materials into toxic, polluting and environmentally damaging substances. The preferred method of firewater containment is to use pneumatic bladders / drain stoppers that block the outflow from the drain or pneumatic non-return valves both of which can convert the drains into containment vessels from which the firewater can be pumped away into tankers for safe disposal.
In Europe it is an offence under the European Environmental Directive 2004/35/EC and the long-standing requirements of PPG11, PPG18 and PPG21.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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