Transition metal modified montmorillonite phosphorus removing adsorbent prepared based on cross precipitation method
A phosphorus adsorbent and transition metal technology, applied in chemical instruments and methods, adsorption water/sewage treatment, other chemical processes, etc., can solve problems such as low regeneration rate, lack of phosphorus removal adsorbents, and expensive adsorbents
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[0063] (1) Add 100 grams of montmorillonite to 500 mL of acetone, stir at 1000 r / min for 10 minutes, filter and remove the liquid to obtain substance A0, add substance A0 to 500 mL of ethanol, and stir at 1000 r / min for 10 minutes , the liquid was removed by filtration to obtain substance A1, substance A1 was washed with 500mL tap water to obtain substance A2, substance A2 was washed with 500mL deionized water to obtain substance A3, and substance A3 was placed in a drying oven at a temperature of 110°C for 60 minutes to obtain substance A;
[0064] (2) Add 12.3 grams of ammonium paratungstate to 2000 mL of deionized water, stir at 1000 r / min for 3 minutes, shake well and divide into 5 equal parts to obtain mixed solution H1, mixed solution H2, mixed solution H3, mixed solution H4, Mixture H5;
[0065] (3) Add 6.7 grams of lanthanum nitrate to 2000 mL of deionized water, stir at 1000 r / min for 3 minutes, shake well and divide into 5 equal parts to obtain mixed solution J1, mi...
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