The invention relates to the field of
environmental technology utilization and discloses a treatment method for improving the repair effect on
cadmium-contaminated soil. According to the method, the combined effect of a chemical repair agent,
sisal and bamboo reeds is adopted; after the repair agent is applied to the to-be-repaired
cadmium-contaminated soil, the
sisal and the bamboo reeds are interplanted; heavy
metal cadmium is absorbed and accumulated by utilizing the
flocculation effect of the chemical repair agent and the enrichment effect of the
sisal and the bamboo reeds; and after outplanting in autumn every year,
ashing processing is performed, so as to extract the heavy
metal cadmium and achieve the purpose of repairing the soil. According to the treatment method, the combined effect of the chemical repair agent, the sisal and the bamboo reeds is adopted, because the
biomass of the sisal and the bamboo reeds is large, the patience and the
transfer volume to cadmium in the soil environment are large, the bamboo reeds are perennial plants and can be simply planted and managed, and
processing is separated from food chains, the repair effect on the cadmium-contaminated soil and the safety of a subsequent process are greatly improved, secondary
pollution is avoided, and the cadmium-contaminated soil can be preferably repaired.