The waste water from pulpingof wheat straw was treatedby usingpolyaluminum chloride (PAC), polymerized ferrous sulfate (PFS) andorganiccoagulantAIDS together.
In the meantime, DuPont AIDS drug Sustiva fits in with Bristol's two HIV treatments, and DuPont anti-coagulant Coumadin meshes with Bristol's existing heart drugs, even though no patent protects it.