A hazardous waste disposal company had been receiving waste acid from various producers and treating the material in ponds. Since their permanent acid neutralization system had not been completed, a temporary system was needed. Lime was chosen as the neutralizing agent because of its relatively low alkalinity cost and ability to precipitate heavy metals.

Site engineers, with input from Gilco Rentals, developed a system consisting of a portable lime slaking unit (capable of slaking up to 100 tons/day of quicklime), portable Baker tank containers for storage of the lime slurry, and a two-stage acid neutralization system. Gilco Rentals recommended how to handle and store the lime slurry, provided the slaking system and related equipment, and delivered the quicklime on a scheduled basis.

A mine reclamation project in a remote location in Canada required a lime slurry source for a pond pH control. The company worked with the mine reclamation specialists, operations personnel and consulting engineer and the lime supplier to provide a portable lime slaker and a portable lime silo. The silo was required to alleviate problems in getting lime to the remote site.

The installed system allows the mine the capability to produce thousands of gallons of lime slurry for pH control at several pond locations.

A mine in Utah needed a temporary system to back-up existing lime slakers that needed maintenance. Working with lime suppliers, Gilco Rentals provided a portable lime slaking system to allow the mine to continue to operate while rebuilding their existing equipment.

A heap leach mine in Nevada needed to treat the water runoff into an abandoned pit. Gilco Rentals provided a portable lime slaker and assisted the mining company in applying the lime.

A pulp mill had been letting wastewater with a high BOD organic component build up in a storage pond. The pond content over time had become acidic and had developed into a septic situation, producing acidic vapors and noxious odors that were harming neighboring fences and livestock. Gilco Rentals proposed bringing dry lime to the site, unloading it through our portable lime mixing systems and then spraying the resulting lime slurry through a sprinkler system set up on a floatation platform on the pond. With this system, lime slurry was spread over the surface of the pond in a controlled manner at the lime rate required by the client (dry pounds per square foot) and was able to bring the pond under control – thereby giving the mill more time to install a permanent solution.

The mine received all of its quicklime in bulk bags so Gilco Rentals supplied them with a diesel powered portable lime slaker modified to allow lime addition via bulk bags. A set amount of bags was added per batch and allowed mine personnel to produce a slurry to a specified density and then pump that into the pond. This allowed the mine site to complete the pond liming project within the required time frame..