A kind of treatment method of high-concentration phenol-containing wastewater
A treatment method, a technology for phenol wastewater, applied in the direction of extraction water/sewage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problems of poor effect and high energy consumption, achieve effective content and reduce energy consumption , the effect of reducing the content
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Embodiment 1
[0033] This embodiment is used to illustrate the treatment method of the high-concentration phenol-containing wastewater provided by the present invention.
[0034] The temperature of high-concentration phenol-containing wastewater (total phenol content is 12000 mg / L, wherein the content of unit phenols is 8000 mg / L and the content of polyphenols is 4000 mg / L) is controlled at 30 °C, and its pH value is adjusted to 8. Mix the phenol-removing extractant (100% by volume of methyl tert-butyl ketone) with the high-concentration phenol-containing wastewater after adjusting the pH value at a volume ratio of 1:3 for 15 minutes, and then let stand for 60 minutes to obtain the extract phase and the raffinate phase .
[0035] After testing, the contents of unit phenols and polyphenols in the obtained raffinate phase were 233 mg / L and 804 mg / L respectively, and the contents of unit phenols and polyphenols in the obtained extract phase were 23354 mg / L and 9688 mg / L respectively. It can b...
Embodiment 2
[0037] This embodiment is used to illustrate the treatment method of the high-concentration phenol-containing wastewater provided by the present invention.
[0038] The temperature of high-concentration phenol-containing wastewater (total phenol content is 12000mg / L, wherein the content of unit phenols is 8000mg / L and the content of polyphenols is 4000mg / L) is controlled at 70°C, and its pH value is adjusted to 8. Mix the phenol-removing extractant (100% by volume of methyl tert-butyl ketone) with the high-concentration phenol-containing wastewater after adjusting the pH value according to the volume ratio of 1:3 for 20 minutes, and then let it stand for 60 minutes to obtain the extract phase and the raffinate phase .
[0039] After testing, the contents of unit phenols and polyphenols in the obtained raffinate phase were 369 mg / L and 1216 mg / L, respectively, and the contents of unit phenols and polyphenols in the obtained extract phase were 22893 mg / L and 8352 mg / L, respectiv...
Embodiment 3
[0041] This embodiment is used to illustrate the treatment method of the high-concentration phenol-containing wastewater provided by the present invention.
[0042] The temperature of high-concentration phenol-containing wastewater (total phenol content is 12000mg / L, wherein the content of unit phenols is 8000mg / L and the content of polyphenols is 4000mg / L) is controlled at 40°C, and its pH value is adjusted to 8. Mix the phenol-removing extractant (100% by volume of methyl tert-butyl ketone) with the high-concentration phenol-containing wastewater after adjusting the pH value at a volume ratio of 1:1 for 20 minutes, and then let stand for 60 minutes to obtain the extract phase and the raffinate phase .
[0043] After testing, the contents of unit phenols and polyphenols in the obtained raffinate phase were 82 mg / L and 361 mg / L, respectively, and the contents of unit phenols and polyphenols in the obtained extract phase were 7918 mg / L and 3639 mg / L, respectively. It can be ca...
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Abstract
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