Why Sodium Acetate Became the Preferred Carbon Source for TN Upgrade

In the "quasi-Class IV" and "quasi-Class III" upgrade of municipal wastewater treatment plants, total nitrogen (TN) compliance is a common challenge. When the influent biodegradable carbon source (BOD5) is insufficient, denitrifying bacteria lack electron donors, limiting denitrification efficiency and causing TN exceedance.

Adding an external carbon source can supplement the deficit and increase denitrification rate. Sodium acetate, as a small-molecule organic salt easily utilized by denitrifying bacteria, offers fast denitrification rate, low sludge yield and minimal system shock, making it a mainstream choice for carbon source addition in many WWTPs. Product requirements can refer to HG/T 5959-2021 "Carbon Source Sodium Acetate for Biochemical Wastewater Treatment".

Compared with glucose, methanol and other carbon sources, sodium acetate has comprehensive advantages in denitrification rate, operational stability and safety, especially suitable for municipal and industrial wastewater scenarios requiring stable effluent TN.

Henan Fannuo liquid sodium acetate can provide suitable solid content and COD equivalent specifications according to customer water quality and effluent TN targets, and assist in calculating dosage to help WWTPs achieve stable compliance.