Remediation agent and application for combined contaminated soil
A soil remediation agent and composite pollution technology, which is applied in composite contaminated soil remediation agent and application fields, can solve the problems of low remediation efficiency and high treatment cost, and achieve the effect of increasing adsorption capacity, high adsorption value and rich pores
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preparation Embodiment 1
[0041] Using the mixture of straw and calcium oxide as raw material, the mass ratio of straw and calcium oxide is 20:1, vacuum pyrolysis for 30min under the conditions of system pressure of 20kPa and pyrolysis temperature of 500°C, the particles obtained by grinding Solid powder with a diameter of less than 3mm;
[0042] Obtain solid powders of calcium hydroxyphosphate, potassium humate, α-cyclodextrin, diatomaceous earth, and plant ash with a particle size of less than 2mm;
[0043] Weigh according to mass percentage:
[0044] Biochar 40%;
[0045] Calcium Hydroxyphosphate 15%;
[0046] Potassium humate 15%;
[0047] α-cyclodextrin 15%;
[0048] Diatomaceous earth 10%;
[0049] Plant ash 5%.
[0050] Biomass charcoal, calcium hydroxyphosphate, potassium humate, α-cyclodextrin, diatomaceous earth, and plant ash are mixed according to the above ratio to prepare the restoration agent.
preparation Embodiment 2
[0052] Using the mixture of straw and calcium oxide as raw material, the mass ratio of straw and calcium oxide is 20:1, vacuum pyrolysis for 30min under the conditions of system pressure of 20kPa and pyrolysis temperature of 500°C, the particles obtained by grinding Solid powder with a diameter of less than 3mm;
[0053] Obtain solid powders of calcium hydroxyphosphate, potassium humate, α-cyclodextrin, diatomaceous earth, and plant ash with a particle size of less than 2mm;
[0054] Weigh according to mass percentage:
[0055] Biochar 50%;
[0056] Calcium Hydroxyphosphate 20%;
[0057] Potassium humate 10%;
[0058] Alpha-cyclodextrin 10%;
[0059] Diatomaceous earth 5%;
[0060] Plant ash 5%.
[0061] Biomass charcoal, calcium hydroxyphosphate, potassium humate, α-cyclodextrin, diatomaceous earth, and plant ash are mixed according to the above ratio to prepare the restoration agent.
preparation Embodiment 3
[0063]Using the mixture of straw and calcium oxide as raw material, the mass ratio of straw and calcium oxide is 20:1, vacuum pyrolysis for 30min under the conditions of system pressure of 20kPa and pyrolysis temperature of 500°C, the particles obtained by grinding Solid powder with a diameter of less than 3mm;
[0064] Obtain solid powders of calcium hydroxyphosphate, potassium humate, α-cyclodextrin, diatomaceous earth, and plant ash with a particle size of less than 2mm;
[0065] Weigh according to mass percentage:
[0066] Biochar 30%;
[0067] Calcium Hydroxyphosphate 10%;
[0068] Potassium humate 20%;
[0069] α-cyclodextrin 20%;
[0070] Diatomaceous earth 10%;
[0071] Plant ash 10%.
[0072] Biomass charcoal, calcium hydroxyphosphate, potassium humate, α-cyclodextrin, diatomaceous earth, and plant ash are mixed according to the above ratio to prepare the restoration agent.
[0073] Embodiment 1-3 gained restorative agent application specific implementation and...
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