Papermaking wastewater treatment method for substituting Fenton treatment
A technology for papermaking wastewater and treatment method, which is applied in the process of wastewater treatment, water/sewage treatment, biological water/sewage treatment, etc., can solve the problems of high risk of drugs and many types of chemical auxiliary materials, etc., to shorten the reaction time, reduce The effect of suspended solids content and fast settling speed
Active Publication Date: 2016-12-21
山鹰华南纸业有限公司
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Problems solved by technology
[0003] For this reason, it is necessary to provide a papermaking wastewater treatment method that replaces Fenton’s treatment, and solves the problems of many types of chemical auxiliary materials added in the Fenton’s treatment process and the high risk of drugs in the treatment process.
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Embodiment Construction
[0024] In order to describe in detail the technical content, structural features, achieved goals and effects of the technical solution, the following will be described in detail in conjunction with specific embodiments.
[0025] Hansenula polymorpha: also known as Hansenula polymorpha, is a special methanolotrophic yeast, such as Hansenula Xuanwei, Hansenula China, etc.
[0026] In this embodiment, the microorganism of the genus Hansenula is a mixture of one or more of Hansenula xuanwei and Hansenula chinensis;
[0027] The main technical circuit of a papermaking wastewater treatment method that replaces Fenton's treatment of the present invention is:
[0028] In this embodiment, the process is as follows: sewage filtration -> polyaluminum iron silicate purification sewage -> water hyacinth powder and Hansenula microbial mixture purification sewage.
[0029] details as follows:
[0030] 1. First get water hyacinth powder and Hansenula microbial mixture:
[0031] Drying the ...
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Abstract
The invention discloses a papermaking wastewater treatment method for substituting Fenton treatment. The method comprises the following steps: 1, obtaining a water hyacinth powder and Hansenula polymorpha mixture: mixing crushed water hyacinth powder with Hansenula polymorpha to form the mixture; 2, purifying sewage by polyaluminum silicate: adding the polyaluminum silicate to papermaking wastewater, and adding polyacrylamide to reacted wastewater; 3, purifying the sewage by the water hyacinth powder and Hansenula polymorpha mixture: adding the water hyacinth powder and Hansenula polymorpha mixture to water; adding polyacrylamide to water, and allowing impurities in the water to be separated from the water in order to realize reaction ending; and taking out clear water. The polyaluminum silicate is added in the treatment process to reach the required sulfuric acid, ferrous sulfate, hydrogen peroxide and liquid alkali effects in traditional wastewater Fenton treatment technologies; adjustment of the pH value is not needed in the process, so the complexity of purchased auxiliary materials is greatly reduced, and the complexity and the risk in the operation process are also reduced.
Description
technical field [0001] The invention relates to the field of wastewater treatment, in particular to a method for treating papermaking wastewater instead of Fenton treatment. Background technique [0002] The existing papermaking wastewater advanced treatment process mostly adopts the Fenton process, which is mainly treated by adding sulfuric acid, ferrous sulfate, hydrogen peroxide, liquid caustic soda and PAM. There are many kinds of chemical auxiliary materials added in the Fenton treatment process. Once a certain chemical auxiliary material is in short supply, it will seriously affect the treatment effect of the entire process; when using Fenton reagent in the process pretreatment process, it is necessary to use a large amount of concentrated sulfuric acid to adjust the pH value of the sewage to 2 ~3 or so, the effluent needs to be adjusted back to 6~9 through liquid caustic soda, the drug is dangerous and the treatment cost is high; the inorganic salt content in the wate...
Claims
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IPC IPC(8): C02F9/14C02F103/28
CPCC02F1/286C02F1/56C02F3/347C02F2103/28
Inventor 李飞明林燕全伍忠磊安正伦
Owner 山鹰华南纸业有限公司