The two proposed sites for a new incinerator have attracted opposition from local groups concerned about the impact on the environment.
Cardiff Against the Incinerator and Stop Newport Incinerator say that a better solution to domestic waste would be to increase recycling targets.
The two bidders, Veolia and Viridor, say that the plans represent a major investment and electricity generated by the incinerator will help power local homes and businesses.
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Aaron French-Willcox was just 19 years old when he was found dead while living in a tent in a park in February.
Police are searching for a man who fled on foot after his car collided with four vehicles - leaving a child with minor injuries.
Joshua Pillinger died in the collision at the Mid Wales Activity Centre on Sunday.