| 摘要 |
The present invention concerns a process for the preparation of fertilizer and surfactant natural compositions for washing, reclamation and cultivation o contaminated soils and said compositions based on humoalginates obtained by reaction of fossil material, preferably leonardite, with alginic acid in alkaline medium. The process consists in preparing a muddy mixture of fossil material in water, adding under agitation a solution of alginic acid and alkaline agent where alginic acid is present in amount between 0.5 to 15 wt% and alkaline agent is present in amount between 2 to 17 wt% based on the total weight of the final mixture. |
