Client: Mannington Carpets
Location: Calhoun, Georgia
Contract Amount: $530,000
Remtech Engineers was engaged to close three latex ponds according to the
State of Georgia HSRA reporting and remediation requirements at a commercial
carpet manufacturing facility. Remtech conducted a site characterization
that consisted of installing groundwater monitoring wells and collecting
sludge core samples from the SBR Latex.
Pilot bench scale degradation tests were performed which included chemical fixation, biological enzyme fixation, enzyme enhanced native microorganism bioremediation, and sludge aeration.
Sludge aeration was selected as the most cost-effective remedial strategy with 99% phthalate, formaldehyde, and other volatile organic compound treatment efficiencies.
8,000 tons of latex sludge were dewatered and leachates were collected and treated with a Remtech portable treatment system. The 100 gallon per minute treatment train consisted of a 10,000 gallon clarification reactor followed by a Remtech low-profile Bubble Lance Air Stripper, Diatomaceous Earth and Activated Carbon Filtration. Over 460,000 gallons of pond leachates were treated below detection limits for volatile and semi-volatile organics and discharged to the City of Calhoun's sanitary sewer system.
Latex sludges were placed on inclined dewatering beds and degassed on biobeds constructed over perforated piping in three foot lifts. The structural stability of sludges was enhanced with a mixture of 20 percent cement kiln dust and 5% Portland Cement. This facilitated use of the treated matrix for site backfill while achieving compaction ratios of greater than 90%.
Pond Dewatering Operations
Remtech Leachate Treatment System
Bio/Degassing Beds
Cement Kiln Dust Chemical Fixation