Lama de hidroescavação - Teste de integridade da tubulação

Desafio

Os testes de integridade de tubulações geralmente exigem escavação hidráulica para expor um segmento de tubulação para inspeção. As lamas resultantes da hidroescavação são geralmente regulamentadas, difíceis de descartar e, em alguns casos, contaminadas. Em 2015, a KBL, licenciada do MetaFLO, foi contratada por um grande operador de tubulação canadense em Alberta para fornecer a solidificação e o descarte de 200 m3 desse resíduo.

Solução

KBL provided two shale bins placed in parallel at the job site. The hydro excavation trucks offloaded into one of these tanks. With the heavier solids settling at the bottom of the tank, the surface water was pumped to the second tank. The heavier mud was mixed with MetaFLO’s MF006 solidification reagent at a dose appropriate for the whole load. The surface water was then returned to the first tank to finish mixing.

Resultado

As seen in the photos below, as a result of the MF006 treatment, the hydro excavation material on the left was transformed to the dry, earth like finish in the right photo. This solution required no in-ground sumps, provided optimal efficiency for expensive hydro excavation trucks and low cost disposal options for solid material. Also, the 1% doseage required for solidification with MetaFLO’s reagent, results in a much smaller quantity than would be produced by sawdust or wood chip bulking methods. The client also reduces activities that generate a carbon footprint and mitigates safety  and environmental risks associated with shipping large quantities of liquid waste.