High Efficiency Grit Removal

Download Grit Separation PDF Grit Separator by EVTN

EXECUTIVE SUMMARY

The Hillsborough County Water Department (Department), in its ongoing program to reduce the amount of grit which reaches the Northwest Regional Residuals Recovery Facility (NWRRRF), issued a research purchase order to Enviro Technologies, Inc. (EVTN) to perform a demonstration program for the removal of grit using a VAS (v-Inline) 4000GS Grit Separator. The patented Grit Separator is a technology that separates solids and liquids based on their distinct specific gravities.

The rotor in the Grit Separator produces a vortex in the fluids flowing through the unit with the heavier materials being drawn to the outside of the vortex, while the lighter materials are drawn to form a central core. A specially designed manifold at the exit of the separation chamber is utilized to collect the separated streams.
A test protocol to evaluate the performance of the VAS4000GS Grit Separator at the Northwest Regional Water Reclamation Facility (Northwest) was developed with the assistance and support of the Department.

The objective for this project is to demonstrate and document the grit removal efficiency of the VAS(v-inline) 4000GS Grit Separator at the headworks of Northwest. The goal is to evaluate the separation efficiency for the total grit quantity in the wastewater and for a series of grit particle size ranges based a sieve analysis of the collected samples.
Until the study is reformatted for this webpage please view or download the pdf Grit Separator by EVTN