Method for treating waste alkaline liquor produced in butanol and octanol production device
A production device and treatment method technology, applied in chemical instruments and methods, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve problems such as difficult treatment, low removal efficiency, and complicated treatment process. To achieve the effect of highlighting substantive features, low heat source taste requirements, and simple process route
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[0059] Example 1
[0060] The method for treating waste lye produced in a butanol production device of the present invention includes the following process operation steps:
[0061] a. Atmospheric stripping
[0062] In the stripping tower, volatile organic compounds are extracted from the top of the tower together with steam to separate the volatile organic compounds in the wastewater; the process parameters are as follows:
[0063] Extraction amount at the top of the tower: Feed amount = 2%~10%
[0064] Reflux ratio 0.5~5
[0065] The number of trays at the feeding position: and the total number of theoretical plates of the tower = 0.1~1;
[0066] b. Low pressure evaporation concentration
[0067] The waste liquid after being stripped in step a, uses the low-pressure secondary steam as the heat source to carry out one-effect and two-effect two-stage evaporation and concentration;
[0068] The process parameters are as follows:
[0069]
[0070] c. Acidification phase separation
[0071] Add ...
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