The nitration reaction of high chloride (~10,000 ppm) activated sludge system
Published on by Lin JYH-YAN, advanced engineer at FORMOSA PETROCHEMICAL CORPORATION in Technology
Dear all,
The nitration reaction of activated sludge system H (chloride~10,000 ppm) is not stable (data as attach files), we have to pump the L system activated sludge to promote the nitration reaction ability once in a while. we want to know the difference of system H and L, and to review the data of NH3-N reduction rate,
a.The ammonia oxidation bacteria (AOB) should be in the activated sludge system H.
b.The NO2-N do not react to NO3-N completely in the system H, while the system L is little NO2-N remain .
c.Some impurities, maybe the chloride, sulfide or others ( we do not know) to injure or inhibit the microorganism NOB or AOB of system H.
The questions list below and ask for dear all:
1.Anyone have the similar experience ?
2.The activated sludge of the H system come from L system, What is the impurities could effect the microorganism NOB or AOB, and make the different for nitration reaction rate?
3.Any suggests for us to improve?
Media
Taxonomy
- Wastewater Phycoremediation
- Wastewater Treatment
- Water & Wastewater
- Wastewater Treatment Chemicals and Consulting
- Activated Sludge
- waste activated sludge
- Associate Professor in Water Chemistry and wastewater treatment
1 Answer
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Do you have a constant Salinity feeding the system? If not that is a major problem. Notification is just your first indication that things are getting ready to go to hell in a handbasket. What you have is a swing salinity that causes osmotic pressure inside the carbonaceous bacterial cells and inhibits the degradation of nitrogen compounds via into soma and nitrobacteria (nitrifiers). I have seen this across well and gas when they put in a scrubber mandate for FCCUs. You can aluminate this by locating the high salinity (chloride) stream, segregating and % of flow feed to the main feed. Keep your conductivity constant. You will probably see float come up and down on the clarifiers as well. Thanks Sean
1 Comment
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The chloride of system H is not swing, the concentration is about 10,000 ppm often. We know the chloride maybe a matter, and we plan to lower. Do you suggest the suitable chloride concentration for ​activated ​sludge system ?
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