Fluid dispensing unit and collection unit for system of observing soil samples

Abstract

A fluid dispenser and leachate collector used in a system for obtaining a soil sample, dispensing liquid into the soil sample, collecting the resulting leachate, and extracting a soil layer from the obtained soil sample. The fluid dispensing unit may be cylindrical in shape and include a perforated disc therein as well as bladed disc situated on top of the perforated disc. The bladed disc is rotatable on the perforated disc to expose or cover select patterns of perforations allowing for different fluid flowrates through the soil sample. The fluid dispensing unit may contain a nanoparticle suspension and a magnetic stirring system be used to mix the nanoparticle suspension. A pump may be included for dispensing the fluid in a top-down or bottom-up configuration. The fluid dispensing unit may include a threaded mating interface allowing for direct coupling onto the sample tube.