Excessive nitrogen in wastewater. Need treatment.
Excessive nitrogen in wastewater. Need treatment.
(OP)
My electronics mfg. plant is increasing the amount of ammonia compounds used in the process. We are approaching the nitrogen limit on our discharge permit. I am interested in hearing about treatment technologies that would allow reduction of N. We operate a pretreatment (primarily neutralization) plant prior to sending to sewer authority. Thanks in advance.





RE: Excessive nitrogen in wastewater. Need treatment.
If all other pollutants have been eliminated in your pretreat station, and only excess nitrogen (N) is to be dealt with, effluent waters could be used to enrich N-deficient grounds. N is considered essential for growing vegetables. Leafy vegetables such as lettuce, spinach, and cabbage benefit from fertilizers with a high N content.
If such a disposal isn't convenient or practical, consider percolating your water through a bed of a N-deficient vegetal substrate, which could then be used as mulch to enrich soils.
Suggest you post your query in the Civil/Environmental Engineers' "waste disposal & treatment" forum to get first-class expertise. Good luck.
RE: Excessive nitrogen in wastewater. Need treatment.
Please provide the following the information so that I can give you a suggestion:
(1) Daily flowrate into city sewer
(2) pH
(3) conductivity (TDS)
(4) TSS
(5) BOD
(6) COD
RE: Excessive nitrogen in wastewater. Need treatment.
[Ammonia to Nitrates (aerobic) to Nitrogen gas (anoxic).]
Standard configurations may be time based (intermittent eg. SBR) or continuous (MLE, A2O etc etc).
Post your wastewater details and give us a look!
Cheers.
RE: Excessive nitrogen in wastewater. Need treatment.