Biological degradation method of nitrogen-containing heterocyclic compound wastewater
A nitrogen heterocyclic compound and biodegradation technology, applied in chemical instruments and methods, biological water/sewage treatment, water pollutants, etc. The effect of stability, convenient process management and mild action conditions
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Embodiment 1
[0025] A biodegradation method for nitrogen-containing heterocyclic compound wastewater, comprising the steps of:
[0026] (1) Nitrite is added to nitrogen-containing heterocyclic compound (pyridine) wastewater to form mixed wastewater, which is collected in the water inlet pool 1. Among them, the carbon-nitrogen ratio (COD / NO x - ) is 5:1, the carbon in the carbon-to-nitrogen ratio comes from pyridine, and the nitrogen comes from the added nitrite.
[0027] (2) The mixed wastewater is lifted into the upflow biological aerated filter 3 through the water inlet pump 2, and the inside of the upflow biological aerated filter 3 is filled with 5-10mm particle filter material 4, and the upflow biological aerated filter 3. A perforated aeration tube 5 is arranged in the lower part for micro-aeration, and the perforated aeration tube 5 is supplied with oxygen by an external air compressor 6 .
[0028] (3) An online monitoring system is installed at the water outlet position on the to...
Embodiment 2
[0034] A biodegradation method for nitrogen-containing heterocyclic compound wastewater, comprising the steps of:
[0035] (1) Nitrate is added to wastewater containing nitrogen-containing heterocyclic compounds (pyridine, quinoline and indole) to form mixed wastewater, which is collected in inlet pool 1, where the carbon-nitrogen ratio (COD / NO x - ) is 10:1, the carbon in the carbon-to-nitrogen ratio comes from pyridine, quinoline and indole, and the nitrogen comes from the added nitrite.
[0036] (2) The mixed waste water is lifted into the upflow biological aerated filter 3 through the water inlet pump 2, and the inside of the upflow biological aerated filter 3 is filled with 20-50 mm of granular filter material 4, and the upflow biological aerated filter 3. A perforated aeration tube 5 is arranged in the lower part for micro-aeration, and the perforated aeration tube 5 is supplied with oxygen by an external air compressor 6 .
[0037] (3) An online monitoring system is i...
Embodiment 3
[0043] A biodegradation method for nitrogen-containing heterocyclic compound wastewater, comprising the steps of:
[0044] (1) Sulfate is added to nitrogen-containing heterocyclic compound (quinoline and indole) wastewater to form mixed wastewater, which is collected in the inlet pool 1, where the carbon-sulfur ratio (COD / SO 4 2- ) is 8:1, the carbon in the carbon-sulfur ratio comes from quinoline and indole, and the sulfur comes from the added sulfate.
[0045] (2) The mixed wastewater is lifted into the upflow biological aerated filter 3 through the water inlet pump 2, and the inside of the upflow biological aerated filter 3 is filled with 15-30mm particle filter material 4, and the upflow biological aerated filter 3. A perforated aeration tube 5 is arranged in the lower part for micro-aeration, and the perforated aeration tube 5 is supplied with oxygen by an external air compressor 6 .
[0046] (3) An online monitoring system is installed at the water outlet position on t...
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