How to deal with nitrate bacterium inhibition?
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Dear experts, our factory has encountered some problems recently. The COD level in the biochemical wastewater is fine, usually around 100 mg/L, but the ammonia nitrogen level is rising rapidly – it increased from less than 5 mg/L to over 35 mg/L within just one week, and there is still a tendency for it to keep rising. The ammonia nitrogen level in the influent has dropped from around 150 to around 100, but that of the effluent has not decreased; the nitrifying bacteria remain inhibited. Excuse me, expert, are there any good measures?
It’s not explained in detail, such as the amount of water used, oil refining, coal chemical industry, etc. There are many measures to take
Pay attention to the characteristics of the sludge, and monitor the conventional water quality parameters such as pH, sludge settling ratio, sludge concentration, and the results of microscopic examinations of the sludge. Additionally, it is necessary to check the dissolved oxygen levels in the aerobic tank to ensure that aeration is sufficient and even
Coking wastewater: pH 7-8 in the aerobic tank, sedimentation ratio of 40-45%, sludge concentration around 4000, DO level between 2-5