UNSPSC 12163101: Anti sludge additives

UNSPSC 12163101 Anti sludge additives, a Commodity code, covers chemical treatment agents that state and local water and wastewater utilities deploy to manage hydrogen sulfide corrosion, odor control, and sludge conditioning in collection systems, treatment plants, and pump stations. Recent solicitations show municipalities buying sodium bisulfite, magnesium hydroxide slurry, hydrogen peroxide, PRISC (Peroxide Regenerated Iron Sulfide Control), sodium bisulfate, and related corrosion-control additives delivered on firm-fixed-price requirements contracts or annual supply agreements with NSF Standard 60 certification mandates. Water departments issue the majority of recent opportunities under this code, ranging from small cities procuring individual chemicals on line-item bases to larger utilities establishing multi-year supply relationships. The City of Cartersville Water Department, City of Austin, City of Tallahassee, City of Griffin, and Macon Water Authority all issued recent solicitations; Dallas Independent School District procurement for district-wide water treatment services also falls within this activity.

Geographic concentration is heaviest in the Southeast and South-Central states, with recent activity in Georgia (Cartersville, Griffin, Macon, Gwinnett County), Florida (Tallahassee, Orlando), and Texas (Austin, Temple, Lubbock, Dallas). The City of Cartersville posted an IFB for water treatment chemicals to two treatment plants due October 30, 2026, specifying aluminum sulfate solution, liquid lime slurry, chlorine, hydrofluosilicic acid, sodium hypochlorite, and sodium bisulfite across 16 annual line items with NSF-60 approval required and 72-hour delivery windows. The City of Austin solicited bids for 38% sodium bisulfite solution in 330-gallon totes on an as-needed basis for wastewater treatment plants under IFB 2200 BYS1051REBID, due June 9, 2026, with local-business evaluation discounts of 3–5% and firm pricing for the initial 12 months. The City of Tallahassee issued a rebid for magnesium hydroxide slurry under a five-year requirements contract with optional two-year renewals, bids due June 16, 2026, requiring NSF Standard 60 certification and minimum five years' supplier experience for hydrogen sulfide and odor control across 1,000 miles of sewer main and 114+ pump stations. Delivery and response timelines typically compress to 48–72 hours, and incumbent vendors often receive consideration as tiebreakers or are already embedded in incumbent-preference scoring.