UNSPSC 47101614: Sludge bulking agent

A chemical agent or diluting agent that is designed to adjust the sludge swelling by oxidizing agent processing, cohesive agent processing, adjustment of slurry return rate, biologic selector operation, biologic treating agent injection and others.

UNSPSC 47101614 Sludge bulking agent (Commodity) encompasses specialty chemical additives and treatment products that state and local water and wastewater systems use to condition, thicken, dewater, and odor-control solids streams during treatment—work ranging from polymer-based dewatering aids to ferrous salt corrosion inhibitors to proprietary biosolids inoculants. Recent solicitations show municipalities and regional water authorities buying sludge management chemicals and related solids-handling services as part of comprehensive water infrastructure operations, with the buying mix dominated by regional water authorities, county water departments, city utilities, and municipal treatment facilities spread across multiple states.

Procurement activity spans the full geographic sweep of U.S. water infrastructure: Georgia, Florida, California, Michigan, Texas, Missouri, and Connecticut have posted solicitations in the past ninety days. Representative recent opportunities include Gwinnett County (Georgia) Board of Commissioners' competitive sealed bid for solids dewatering and thickening polymer (IFB, July 30, 2026 deadline), applied at three water reclamation facilities using belt filter press, rotary drum thickener, and centrifugation, with a four-year initial contract and four optional one-year renewals; the City of Tallahassee's firm-fixed-price requirements contract for Magnesium Hydroxide slurry for hydrogen sulfide and odor control across its wastewater collection system (sealed IFB, June 16, 2026 deadline), structured as a five-year initial term with optional two-year renewals; and Sarasota County's sole-source solicitation (ISS 2026-ISS-767) for proprietary Pipe & Well Renew chemical products and cleaning services designed to dissolve tuberculation, scaling, and biofilm in leachate and landfill gas condensate systems (responses due July 15, 2026). Competitive sealed bids dominate, with requirements contracts, term agreements with renewal options, and performance-based service components common across the buyer base.