Kartesia-backed Babcock Wanson, a designer and manufacturer of medium-sized industrial boilers, agreed to acquire Donau Carbon Technologies, an environmental solutions provider. Financial terms were not disclosed. “For Donau Carbon Technologies this is a unique opportunity to secure and sustain the company’s long-term growth through the support of a leading industrial group such as Babcock Wanson," Giuseppe Dell’Acqua, DCT Managing Director & Founder.