Acid soil remediation agent and preparation and application methods thereof
An acid soil and remediation agent technology, applied in the agricultural field, can solve the problems of labor consumption, high cost and large amount, and achieve the effect of improving adsorption capacity, reducing leaching loss and promoting acid soil improvement.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0028] 1) Mix crushed straw (wheat straw, 1cm long) and cow dung (water content 40wt%) according to the mass ratio of 2:3, and add it into water to obtain a mixed solution with a concentration of 100g / L;
[0029] 2) Add ferrous sulfate (3g / L) and hydrogen peroxide (10mL / L) to the mixed solution obtained in (1), adjust its pH to 2 with sulfuric acid, stir at room temperature (100rpm) for 2 hours, and pass through a 30-mesh sieve , to obtain a carbon-based organic small molecule liquid;
[0030] 3) Add red mud (100 mesh, 100g / L) to the remaining liquid obtained in (2), stir at room temperature (100rpm) for 10 minutes, and add potassium hydroxide to adjust the pH of the solution to 7, and at 50°C Dried and crushed to 100 mesh;
[0031] 4) Mix the powder obtained in (3) with attapulgite (100 mesh), biochar (100 mesh) and potassium carbonate (100 mesh) in a mass ratio of 3:2:2:1 to obtain an acidic soil remediation agent ;
[0032] 5) The restoration agent is evenly spread on th...
Embodiment 2
[0034] 1) Mix crushed straw (rice straw, 10cm long) and cow dung (water content 60wt%) according to the mass ratio of 3:4, and add it into water to obtain a mixed solution with a concentration of 200g / L;
[0035] 2) Add ferrous sulfate (4g / L) and hydrogen peroxide (20mL / L) to the mixed solution obtained in (1), adjust its pH to 3 with sulfuric acid, stir at room temperature (300rpm) for 3 hours, and pass through a 40-mesh sieve , to obtain a carbon-based organic small molecule liquid;
[0036] 3) Add red mud (150 mesh, 150g / L) to the remaining liquid obtained in (2), stir at room temperature (200rpm) for 150 minutes, and add potassium hydroxide to adjust the pH of the solution to 8, and at 80°C Dried and crushed to 150 mesh;
[0037] 4) Mix the powder obtained in (3) with attapulgite (150 mesh), biochar (150 mesh) and potassium carbonate (150 mesh) in a mass ratio of 4:3:3:1.5 to obtain an acidic soil remediation agent ;
[0038] 5) The restoration agent is evenly spread on...
Embodiment 3
[0040] 1) Mix crushed stalks (corn stalks, 20cm long) and cow dung (water content 80wt%) according to the mass ratio of 4:5, and add them into water to obtain a mixed solution with a concentration of 300g / L;
[0041] 2) Add ferrous sulfate (5g / L) and hydrogen peroxide (30mL / L) to the mixed solution obtained in (1), adjust its pH to 4 with sulfuric acid, stir at room temperature (400rpm) for 5 hours, and pass through a 50-mesh sieve , to obtain a carbon-based organic small molecule liquid;
[0042] 3) Add red mud (200 mesh, 200g / L) to the remaining liquid obtained in (2), stir at room temperature (400rpm) for 20 minutes, and add potassium hydroxide to adjust the pH of the solution to 9, and at 100°C Dried and crushed to 200 mesh;
[0043] 4) Mix the powder obtained in (3) with attapulgite (200 mesh), biochar (200 mesh) and potassium carbonate (200 mesh) in a mass ratio of 5:4:4:2 to obtain an acidic soil remediation agent ;
[0044] 5) The restoration agent is evenly spread ...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More