Phosphorus-removing adsorbent and preparation method thereof
A phosphorus adsorbent and adsorbent technology, applied in the field of phosphorus removal in artificial wetland treatment of domestic sewage, to achieve the effect of easy-to-obtain raw materials, simple components, and low cost
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Embodiment 1
[0025] The main components and weight percentages of phosphorus removal adsorbent are as follows:
[0026] Natural Zeolite 83.3%
[0027] Active Iron Oxide 16.7%
[0028] Prepare as follows:
[0029] 1. Preparation of ferric chloride solution
[0030] Under normal temperature and pressure, mix by ferric chloride: water weight ratio is 0.05: 1, and its preparation method is, under stirring condition, add ferric chloride to water, stir evenly;
[0031] 2. Make a mixture
[0032] In the prepared ferric chloride solution, add natural zeolite and stir and mix;
[0033] 3. Adjust the pH value of the mixture
[0034] Under stirring conditions, quickly add a sodium hydroxide solution with a mass concentration of 3% to the above mixed solution to make its pH value 7.0;
[0035] 4. Obtain phosphorus-removing zeolite with iron oxides on its surface
[0036] The fully reacted mixed solution is filtered and dried to produce the phosphorus-removing zeolite loaded with iron oxide.
Embodiment 2
[0038] The main components and weight percentages of phosphorus removal adsorbent are as follows:
[0039] Industrial by-product cinder 92.6%
[0040] Active Iron Oxide 7.4%
[0041] Prepare as follows:
[0042] 1. Preparation of ferric chloride solution
[0043] Under normal temperature and pressure, mix by ferric chloride: water weight ratio is 0.02: 1, and its preparation method is, under stirring condition, add ferric chloride to water, stir evenly;
[0044] 2. Make a mixture
[0045] In the prepared ferric chloride solution, add cinder and stir to mix;
[0046] 3. Adjust the pH value of the mixture
[0047] Quickly add a sodium hydroxide solution with a mass concentration of 1% to the above mixed solution under stirring conditions to make its pH value 7.0;
[0048] 4. Obtain phosphorus removal coal slag loaded with iron oxide on the surface
[0049] The fully reacted mixed solution is filtered and dried to produce phosphorus-removing coal slag loaded with iron oxid...
Embodiment 3
[0051] The main components and weight percentages of phosphorus removal adsorbent are as follows:
[0052] Gravel 61.5%
[0053] Active Iron Oxide 28.5%
[0054] Prepare as follows:
[0055] 1. Preparation of ferric chloride solution
[0056] Under normal temperature and pressure, mix by ferric chloride: water weight ratio is 0.2: 1, and its preparation method is, under stirring condition, add ferric chloride to water, stir evenly;
[0057] 2. Make a mixture
[0058] In the prepared ferric chloride solution, add gravel and stir to mix;
[0059] 3. Adjust the pH value of the mixture
[0060] Quickly add a sodium hydroxide solution with a mass concentration of 11% to the above mixed solution under stirring conditions to make its pH value 7.0;
[0061] 4. Obtain phosphorus removal gravel loaded with iron oxide on the surface
[0062] The fully reacted mixed solution is filtered and dried to produce phosphorus-removing gravel loaded with iron oxides.
[0063] Adopt the dep...
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