| abstract |
The invention discloses a cassava residue biochar-based soil conditioner using concentrated skim slurry as a raw material and a preparation method thereof, belonging to the technical field of waste recycling. The soil conditioner of the present invention is prepared from the following raw materials in parts by weight: 49-51 parts of concentrated skim slurry, 3-12 parts of biochar, 0.3-1.2 parts of water retention agent, 0.75-6 parts of sodium humate, and 0.3 parts of calcium hydroxide. -0.6 parts, 1-1.5 parts of trace elements, 0.6-0.8 parts of cross-linking agents, 0.6-0.8 parts of alkyl polyglycosides, 0.2-0.4 parts of potassium methyl silicate. The invention avoids the pollution reduction treatment of waste liquid, reduces energy waste, improves utilization rate, and prepares soil conditioner, which kills two birds with one stone; and the soil conditioner containing concentrated skim slurry and biochar prepared by the invention, It can adsorb heavy metals in soil and improve soil structure and physical and chemical properties. |