LeAF provides independent and high quality advice on the development and implementation of sustainable environmental technologies for treatment and valorisation of organic residues. LeAF BV is an independent research and consultancy organisation that implements its knowledge, expertise and research facilities in the area of treatment and purification of solid and liquid residues (waste-water) and in the recovery and reuse of water, energy, nutrients and other valuable resources. In this way, we contribute to the realization of a permanent change towards sustainability. Established from and located at the sub-department of Environmental Technology of Wageningen UR, we have access to a broad range of complementary and state-of-the-art knowledge in the area of sustainability, (biobased) technology and environment. When needed or desired, we share forces with other organisations from our extensive network.