Industrial process for the treatment of RSW (residential solid waste) after being milled is processed with sanitizing solutions, and binders and hardeners, which chemically immobilize and avoid the production of percolating liquids, leaching of heavy metals and generation of greenhouse gases. The resulting material is a grey, warm and malleable paste that is moldable, allowing diverse uses. The material can be directly buried in the ground without special protections; can be used as construction material for urban furniture or architectural structures; or can be anchored in the ocean, building habitats of ocean ecosystems, if it is properly packaged in waterproof material.