Metal modified biochar capable of efficiently recycling and desorbing phosphorus as well as preparation method and application of metal modified biochar
The invention discloses metal modified biochar capable of efficiently recycling and desorbing phosphorus as well as a preparation method and application of the metal modified biochar. The preparation method of the metal modified biochar comprises the following steps: (1) crushing, sieving, cleaning...
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| creator | JIANG ENCHEN HU ZIWAN CHEN XUERU HE GUANGSHE PANG XIMING WU RONGTAI JIAN XIUMEI HE BINXUAN |
| description | The invention discloses metal modified biochar capable of efficiently recycling and desorbing phosphorus as well as a preparation method and application of the metal modified biochar. The preparation method of the metal modified biochar comprises the following steps: (1) crushing, sieving, cleaning and drying biomass walnut shells to obtain walnut shell particles; (2) soaking the walnut shell particles in a metal salt solution, stirring for 24 hours or more at normal temperature, and then drying to obtain a metal-modified walnut shell raw material; and (3) heating the metal-modified walnut shell raw material to 300-700 DEG C in a protective gas atmosphere, preserving heat for 2 hours or more, and carbonizing to obtain the metal-modified biochar capable of efficiently recycling and desorbing phosphorus. The metal modified biochar has double purposes: phosphorus in a phosphorus-rich water body can be efficiently adsorbed, and the biochar particles recycled after adsorption can be desorbed to release phosphorus |
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The preparation method of the metal modified biochar comprises the following steps: (1) crushing, sieving, cleaning and drying biomass walnut shells to obtain walnut shell particles; (2) soaking the walnut shell particles in a metal salt solution, stirring for 24 hours or more at normal temperature, and then drying to obtain a metal-modified walnut shell raw material; and (3) heating the metal-modified walnut shell raw material to 300-700 DEG C in a protective gas atmosphere, preserving heat for 2 hours or more, and carbonizing to obtain the metal-modified biochar capable of efficiently recycling and desorbing phosphorus. 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The preparation method of the metal modified biochar comprises the following steps: (1) crushing, sieving, cleaning and drying biomass walnut shells to obtain walnut shell particles; (2) soaking the walnut shell particles in a metal salt solution, stirring for 24 hours or more at normal temperature, and then drying to obtain a metal-modified walnut shell raw material; and (3) heating the metal-modified walnut shell raw material to 300-700 DEG C in a protective gas atmosphere, preserving heat for 2 hours or more, and carbonizing to obtain the metal-modified biochar capable of efficiently recycling and desorbing phosphorus. 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The preparation method of the metal modified biochar comprises the following steps: (1) crushing, sieving, cleaning and drying biomass walnut shells to obtain walnut shell particles; (2) soaking the walnut shell particles in a metal salt solution, stirring for 24 hours or more at normal temperature, and then drying to obtain a metal-modified walnut shell raw material; and (3) heating the metal-modified walnut shell raw material to 300-700 DEG C in a protective gas atmosphere, preserving heat for 2 hours or more, and carbonizing to obtain the metal-modified biochar capable of efficiently recycling and desorbing phosphorus. The metal modified biochar has double purposes: phosphorus in a phosphorus-rich water body can be efficiently adsorbed, and the biochar particles recycled after adsorption can be desorbed to release phosphorus</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY FERTILISERS FERTILISERS CHARACTERISED BY THEIR FORM MANUFACTURE THEREOF METALLURGY MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENTSUBCLASSES OF CLASS C05 MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVINGA SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES,SOIL-CONDITIONERS, WETTING AGENTS PERFORMING OPERATIONS PHOSPHATIC FERTILISERS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE |
| title | Metal modified biochar capable of efficiently recycling and desorbing phosphorus as well as preparation method and application of metal modified biochar |
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