Filter apparatus and process for filtration

A modular structural device for assembling a funnel of a filtration apparatus, comprising:

• a base sheet having a polygonal shape;
• the base sheet having two sections connected by a hinge extending along a diagonal from a first corner of the base sheet to a second corner opposite the first corner, the second corner being substantially concave, the first section being foldable towards the second section along the hinge;
• at least one connector having a first part and a second part, the first part of the connector disposed on the first section of the base sheet along a first edge adjacent to the second corner, the first part of the connector comprising a projection that extends away from an upper surface of the base sheet, the second part of the connector disposed on the second section of the base sheet along a second edge adjacent to the second corner, the second part of the connector comprising a depression in a lower surface of the base sheet;
• wherein the first part of the connector is configured to releasably engage the second part of the connector of a second base sheet.

A filtration system comprising:

• a base sheet having a plurality of sections, each section being separated from at least one other of the sections by a juncture;
• each section having two subsections connected by a hinge extending along a diagonal from a first corner of the section to a second corner opposite the first corner, the second corner being substantially concave, the first subsection being foldable towards the second subsection along the hinge;
• and
• a connector having a first part and a corresponding second part;
• wherein the first part of the connector is attached to one of the sections and the second part of the connector is attached to another one of the sections;
• wherein the first part of the connector is configured to releasably engage the second part of the connector such that the base sheet is bent along the hinges forming a funnel-shape and the concave corners are disposed adjacent to each other to form an opening.