Processing method of nitrile contained organic sewage difficult to degrade
A technology of organic wastewater and treatment methods, applied in water/sewage treatment, reduced water/sewage treatment, water/sludge/sewage treatment, etc., can solve problems such as blank, inability to achieve the effect of wastewater treatment, inability to biochemical treatment, etc.
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Embodiment 1
[0018] Embodiment 1: 1800 milliliters of said refractory nitrile-containing organic waste water (CODcr content is 25098mg / l), adjust its pH value to 1~2 with sulfuric acid, then it is the volume ratio of 1 / 1 by iron / carbon ratio The iron-carbon micro-electrolysis column is introduced into the air for stirring to make it fully react, and the reaction time is 1 to 2 hours. Use sulfuric acid to adjust the pH value of the above-mentioned waste water after the micro-electrolysis process to 1-2, and add 12 grams of ferrous sulfate to carry out redox reaction under bubbling and stirring with air. The reaction time is 1-2 hours, and then add lime to carry out For neutralization reaction, the amount of lime added is 8 grams to control the pH value of the above-mentioned wastewater to 7.5-8, and the neutralization reaction is carried out under air stirring for 10-30 minutes. After the reaction is completed, put the wastewater into a beaker and let it settle for 20-30 minutes . The clea...
Embodiment 2
[0019] Embodiment 2: 1800 milliliters of said refractory nitrile-containing organic waste water (CODcr content is 19996mg / l), adjust its pH value to 2~3 with sulfuric acid, then it is the volume ratio of 1 / 1 by iron / carbon ratio The iron-carbon micro-electrolysis column is introduced into the air for stirring to make it fully react, and the reaction time is 2 to 3 hours. Use sulfuric acid to adjust the pH value of the above-mentioned waste water after the micro-electrolysis process to 2 to 3, and add 23 grams of ferrous sulfate to carry out redox reaction under bubbling and stirring with air. The reaction time is 3 hours, and then add lime for neutralization. Reaction, the amount of lime added is 15 grams, to control the pH value of the above-mentioned waste water to be 8-8.5, neutralize the reaction under air stirring for 20-30 minutes, after the reaction is completed, put the waste water into a large beaker and let it settle for 30-50 minutes. The CODcr content of the supern...
Embodiment 3
[0020] Embodiment 3: 1800 milliliters of said refractory nitrile-containing organic waste water (CODcr content is 21163mg / 1), adjust its pH value to 3~4 with sulfuric acid, then it is the volume ratio of 1 / 1 by iron / carbon ratio The iron-carbon micro-electrolysis column was introduced into the air for stirring to make it fully react, and the reaction time was 4 hours. Use sulfuric acid to adjust the pH value of the above-mentioned waste water after the micro-electrolysis process is 3 to 4, and add 20 grams of ferrous sulfate to carry out redox reaction under bubbling and stirring with air. The reaction time is 1 to 2 hours, and then add lime to carry out For neutralization reaction, the amount of lime added is 20 grams to control the pH value of the above wastewater to 9-10, and the neutralization reaction is carried out under air stirring for 30-40 minutes. After the reaction is completed, put the wastewater into a large beaker and let it settle for 40-60 minute. The CODcr c...
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