Filter web comprising fine fiber and expandable particulate

Assembly of the invention can be comprised of fine fibre layer forming a thin layer network or substrate has dispersed in the fine fibre layer in the biological activity particle material comprises cell enzyme or microbe. Flow through the invention member of the fluid can be dispersed or dissolved in liquid in any material and nanometre fibre layer in the biological activity particle the reaction is nanometer fibre layer in the biological activity particle absorbing or absorbing. Assembly of the invention can be used for processing and purifying fluid flow. Assembly of the invention can be connected with the biological reactor system of biological artificial organ or culture vessel the combined use of.