Compound denitrification agent
A chemical and denitrification technology, applied in water/sludge/sewage treatment, biological water/sewage treatment, chemical instruments and methods, etc. Effect
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Embodiment 1
[0029] At present, the discharge standard of Tianjin sewage treatment plant has higher requirements for total nitrogen, which has been reduced from 15 mg / L to 10 mg / L. Therefore, the requirements for denitrification agents have also been increased accordingly.
[0030] The invention provides a compound denitrification agent, which comprises the following raw materials in parts by weight: 15 parts of modified zeolite powder, 5 parts of modified bentonite, 11 parts of Thiobacillus denitrification bacteria liquid, 7 parts of Steineria liquid, 5 parts of nitrite reductase enzyme liquid, 13 parts of carbon source liquid, 11 parts of ferric sulfate, 5 parts of ethanol, and 10 parts of fruit juice fermentation liquid.
[0031] Wherein, the carbon source liquid is a mixed liquid of glucose and straw fermentation liquid, and the weight ratio of the glucose to the straw fermentation liquid is 1:4.
[0032] The preparation method of the above-mentioned modified zeolite powder is as follo...
Embodiment 2
[0039] A compound denitrification agent, comprising the following raw materials in parts by weight: 15 parts of modified zeolite powder, 5 parts of modified bentonite, 5 parts of Thiobacillus denitrifica bacteria liquid, 10 parts of Steineria liquid, nitrous acid reduction 10 parts of enzyme liquid, 10 parts of carbon source liquid, 7 parts of iron sulfate, 8 parts of ethanol, 4 parts of fruit juice fermentation liquid.
[0040] Wherein, the carbon source liquid is a mixed liquid of glucose and straw fermentation liquid, and the weight ratio of the glucose to the straw fermentation liquid is 1:4.
[0041] The preparation method of the above-mentioned modified zeolite powder is as follows: heat the zeolite powder for ball milling, add 6.8% NaCl solution dropwise to the reaction kettle at a rate of 1mL / s, add dropwise for 5 hours, and at the same time keep the temperature at 30°C at a speed of 200r / min Shake in a water-bath shaker for 10 hours, dry and grind to obtain modified z...
Embodiment 3
[0048] A compound denitrification agent, comprising the following raw materials in parts by weight: 13 parts of modified zeolite powder, 7 parts of modified bentonite, 9 parts of Thiobacillus denitrifica bacteria liquid, 8 parts of Steineria liquid, nitrous acid reduction 6 parts of enzyme liquid, 12 parts of carbon source liquid, 10 parts of iron sulfate, 6 parts of ethanol, 7 parts of fruit juice fermentation liquid
[0049] Wherein, the carbon source liquid is a mixed liquid of acetic acid and straw fermentation liquid, and the weight ratio of the acetic acid to the straw fermentation liquid is 1:4.
[0050] The preparation method of the above-mentioned modified zeolite powder is as follows: heat the zeolite powder for ball milling, drop 6.4% NaCl solution into the reaction kettle at a rate of 1.5mL / s, add dropwise for 5.2 hours, and at the same time rotate at 170r / min at 33 °C in a constant temperature water-bath shaker for 12 hours, dried and ground to obtain modified zeoli...
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