Preparation method for biochar composite adsorbent and repairing method for Cr(VI) containing wastewater
A composite adsorption and repair method technology, which is applied in the direction of adsorption of water/sewage treatment, chemical instruments and methods, water pollutants, etc., can solve the problems of low adsorption capacity, small porosity and specific surface area of biochar, long equilibrium time, etc. , to achieve high adsorption performance, easy promotion and low cost
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[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0024] see Figure 1-2 , the preparation method of biochar composite adsorbent and the repair method to containing Cr (VI) waste water, comprise two steps of preparation of biochar and solution impregnation reduction method, wherein, the preparation of biochar comprises the following steps:
[0025] Step 1: After washing Solidago, remove the leaves, dry with drying equipment, and pulverize with crushing equipment to obtain powder;
[0026] Step 2: Heating to ...
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