Hydrovac Side

HYDRO EXCAVATIONS

Innovation in water-based semi-solids disposal

Issue at a Glance

Hydro excavation (hydrovac) generates liquid slurry, typically dumped at various receiving sites.

To deal with this slurry, multiple bins or pits hold it until it dries, or the slurry is spread out on drying beds. This traditional treatment method requires a large area and can encounter issues when it rains or snows.

The process for liquid slurry disposal often looks like this:

  1. Specialized vacuum trucks transport the slurry to a transfer station
  2. Bulking agents such as sawdust are used (usually bulking the slurry up by 50-200%)
  3. Dump trucks transport the increased waste load to a final disposal site

This means more trucks needed, more time wasted and higher disposal costs incurred.

Overview of MetaFLO's product

Using MetaFLO’s reagent, the hydro excavation material is transformed into a dry, earth-like finish.

This solution requires no in-ground sumps, and provides optimal efficiency for expensive hydro excavation trucks and low-cost disposal options for solid material.

The 1% dosage required for solidification with MetaFLO’s reagent results in a much smaller quantity than would be produced by sawdust or wood chip bulking methods.

This also reduces activities that generate a carbon footprint and mitigates safety and environmental risks associated with shipping large quantities of liquid waste.

With MetaFLO, liquid slurry disposal is optimized:

  1. MetaFLO’s technology solidifies the liquid waste on-site
  2. The solidified waste is transferred to dump trucks to be transported directly to the final disposal site.

The benefits are clear with the MetaFLO patented process:

  • Cost savings
  • Fewer trucks needed
  • No expensive liquid transport
  • Reduction in GHG emissions
  • Control of waste
  • Compliance for client
  • Soil reused as clean, regenerative fill material
  • Less paperwork involved

MetaFLO Technologies can work with operations personnel to help put together a tailored and effective plan to address the challenges of variable liquid waste streams (such as tunnel spoils, hydro excavation slurry, and wastewater lagoons).

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Significantly reduce transportation costs

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Minimize environmental and safety risks

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Sustainable and efficient waste management

Case Study

Learn how MetaFLO helped PG&E with moving electrical utility infrastructure underground in order to help prevent wildfires and losses from extreme weather events.

LEARN MORE