Beet pulp biological adsorbent as well as preparation method and application thereof
A technology of biosorbent and sugar beet meal, which is applied in the direction of using adsorbent purification, application, chemical instruments and methods, etc. It can solve the problems of unsatisfactory effect and non-reusable sugar beet meal, and achieve high utilization efficiency and less impurities , Strong adsorption effect
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[0034] Example 1
[0035] (1) Preparation and pretreatment of beet meal: dried beet meal is sorted, crushed, and passed through a 20-mesh sieve. Mix beet meal and 0.1mol / L NaOH solution at a ratio of 1:20g / mL for 2h, filter and drain, wash until the pH value has no change, and dry for use;
[0036] (2) Modification of beet meal: add 100g of beet meal treated with alkali solution into a 2L beaker, add 0.5mol / L FeCl at a volume ratio of 1:20g / mL 3 The solution is continuously stirred for 12 hours under normal temperature conditions. After the reaction, it is filtered, washed with distilled water until the filtrate is clear, and dried for later use;
[0037] (3) Add the dried beet meal to a mixed solution of 0.2mol / L NaOH containing 5% NaCl at a mass-volume ratio of 1:20g / mL and mix for 24h to obtain modified beet meal, filter and wash When there is no change in the pH value, it is dried at 50° C. for use to obtain the sugar beet meal biosorbent.
[0038] The beet pulp biosorbent obtain...
Example Embodiment
[0041] Example 2
[0042] (1) Preparation and pretreatment of beet meal: dried beet meal is sorted, crushed, and passed through a 20-mesh sieve. Mix beet meal and 0.1mol / L NaOH solution at a ratio of 1:20g / mL for 2h, filter and drain, wash until the pH value has no change, and dry for use;
[0043] (2) Modification of beet meal: add 100g of beet meal treated with alkali solution into a 2L beaker, add 0.5mol / L FeCl at a volume ratio of 1:20g / mL 3 The solution is continuously stirred for 12 hours under normal temperature conditions. After the reaction, it is filtered, washed with distilled water until the filtrate is clear, and dried for later use;
[0044] (3) Add the dried beet meal to a mixed solution of 0.2mol / L NaOH containing 5% NaCl at a mass-volume ratio of 1:20g / mL and mix for 24h to obtain modified beet meal, filter and wash When there is no change in the pH value, it is dried at 50° C. for use to obtain the sugar beet meal biosorbent.
[0045] The beet pulp biosorbent obtain...
Example Embodiment
[0048] Example 3
[0049] (1) Preparation and pretreatment of beet meal: dried beet meal is sorted, crushed, and passed through a 20-mesh sieve. Mix the sugar beet meal with 0.2mol / L NaOH solution at a ratio of 1:10g / mL for 3h, filter and drain, wash until the pH value does not change, and dry for later use;
[0050] (2) Modification of beet meal: add 100g of beet meal treated with alkali solution into a 2L beaker, add 0.5mol / L FeCl at a volume ratio of 1:20g / mL 3 The solution is continuously stirred for 12 hours under normal temperature conditions. After the reaction, it is filtered, washed with distilled water until the filtrate is clear, and dried for later use;
[0051] (3) Add the dried beet meal to a mixed solution of 0.2mol / L NaOH containing 5% NaCl at a mass-volume ratio of 1:20g / mL and mix for 24h to obtain modified beet meal, filter and wash When there is no change in the pH value, it is dried at 50° C. for use to obtain the sugar beet meal biosorbent.
[0052] The beet pul...
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