Sodium acetate/Sodium acetate

As the primary high-quality carbon source for biological denitrification, it solves the problem of excessive total nitrogen; Secondly, assist in adjusting pH and improving sludge dewatering under specific operating conditionsIts function revolves around the two core goals of "supporting microbial activity" and "stabilizing water quality parameters", and it is one of the indispensable key agents in biological water treatment systems.

Category:

Water treatment chemicals carbon source

In the field of water treatmentBiological treatment processWhen microorganisms (especially denitrifying bacteria) degrade nitrogen elements (ammonia nitrogen, total nitrogen) in water bodies (such as A ²/O, MBR, SBR, etc.), they need to use "carbon sources" as energy sources and cellular synthesis materials. When the carbon content of the raw water is insufficient (such as low carbon to nitrogen ratio wastewater, commonly found in municipal wastewater, aquaculture wastewater, chemical wastewater, etc.), the activity of denitrifying bacteria will significantly decrease, resulting in a low total nitrogen removal rate. At this time, it is necessary to manually add carbon sources, and the role of sodium acetate is reflected in:

Directly utilized by microorganisms, with high efficiency
Sodium acetate belongs to the "easily degradable carbon source" and does not require additional microbial decomposition and transformation. It can directly enter the cell through the cell membrane to participate in metabolism, quickly activating the activity of denitrifying bacteria and shortening the denitrification reaction time (compared to glucose, which needs to be decomposed into small molecule organic acids first, and methanol, which depends on specific microbial communities).
Stable control of denitrification effect
The carbon content (COD value) of sodium acetate is stable (solid sodium acetate COD is about 1.06g/g, liquid COD is about 0.3-0.5g/mL), and the dosage is easy to accurately calculate, which can avoid excessive carbon source causing COD exceeding the standard in the effluent or insufficient carbon source causing total nitrogen exceeding the standard. It is especially suitable for scenarios with strict requirements for effluent quality (such as the Class A discharge standard of urban sewage plants).
Suitable for complex working conditions such as low temperatures
Low temperature environments (such as winter water temperature<15 ℃) can inhibit microbial activity, while sodium acetate has better adaptability to low temperatures than methanol and glucose, and can maintain denitrification efficiency at lower temperatures, ensuring stable operation of winter water treatment systems.