Superiority of Sodium Acetate As A Carbon Source in Wastewater Treatment

The denitrification rate of sodium acetate as a carbon source is much higher than that of starch. The main reason is that sodium acetate is a low molecular organic acid salt, which is easily utilised by microorganisms.

The phenomenon of denitrification using sodium acetate as a carbon source is much faster than using starch.

Sodium acetate itself is not dangerous, easy to transport and store, cheap, so for some of the built sewage treatment plant, due to its land limitations, when the need for additional carbon source, the use of sodium acetate as a supplementary carbon source is more advantageous.

Sodium acetate was used as a supplementary carbon source to domesticate the denitrifying sludge, and then a buffer solution was used to control the pH rise in the denitrification process within 0.5. Denitrifying bacteria can adsorb CH3COONa in excess, so when denitrification is carried out with CH3COONa as an additional carbon source, the COD value of the effluent can be maintained at a lower level, and the current sewage treatment of cities and counties need to add sodium acetate (sodium acetate) as a carbon source to meet the emission of first-class standards. The denitrification rate of sodium acetate as a carbon source is much higher than that of starch.