Walker

Solutions to convert biosolids (sewage wastewater residuals) to agricultural fertilizer and/or other beneficial end-product. Deadline: 21 January

ARLANXEO

Solutions to convert biological sludge into alternative fuels. Deadline: 21 January

SPA Aqua Prima

SPA Aqua Prima is seeking innovative nutrient recycling and bioremediation solutions; specifically, biofiltration technologies for outdoor open surface waters and for (chlorine-free) indoor…