Applications

  • On shore and off shore drilling operations
  • Oil Refineries
  • Flowback Water from Hydraulic Fracturing
  • Produced Water
  • Frac Water
  • Waste Oil Processing Facilities

Product Literature

For complete product specifications, dowload PDF:

 

 

HQI Clarification System

Pretreatment of Produced Water & Frac Water

(BAT) Best Available Technology to date for pretreatment of produced water and flowback water has been the use of a CPI (Corrugated Plate Interceptor). The CPI Separator can separate free oil 60 micron in size or greater and settleable solids. However, a significant amount of dispersed oil, suspended solids, and stable emulsions would pass between the plates and remain in the flow to the clean water compartment. Unlike CPI separators, the HQI Clarification System has 5 stages of separation.

HQI Clarification Systems are a horizontal gravity flow treatment systems designed to separate settleable solids (specific gravity greater than water), suspended solids (specific gravity the same as water), and free and dispersed oil.

clarification system

5 Stages of Oil, Settleable/Suspended Solids and Water Separation

  1. First, the free oil (150 micron in size or greater) is separated in the inlet quiescent zone. (Pipe skimmer provided to decant oil).

  2. Second, the settleable solids will flow downward into the hopper section for removal.

  3. Third, the suspended solids and dispersed oil will flow upward through the inclined plates section, where most of the suspended solids will slide down the plates into the hopper (based on a design of .25 gpm per square foot of projected plate surface area).

  4. Fourth, the remaining suspended solids and dispersed oil will flow into the separation compartment where the coalescing plates will separate the oil 30 micron or greater to the surface for removal and the remaining suspended solids will be captured in the coalescing plates. The amount of solids in the plates will determine the frequency of plate cleaning. (Pipe skimmer for removal of separated oil).

  5. Fifth, the flow of water will go over the overflow weir plate into the clean water compartment where absorption bags will prevent any carry over from being discharged.

For Weights, Dimensions, and Capacities, please see our Clarification System product literature (PDF).