Slag bacterial fertilizer and preparation method thereof and method for improving degraded soil
US10457612B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 5, 2019 |
| Grant date | Oct 29, 2019 |
| Priority date | — |
| Expiry date | Mar 5, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB09C2101/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Providing a slag bacterial fertilizer and preparation method thereof and a method for improving the degraded soil; the preparation method of the slag bacterial fertilizer, comprising: adding humic acid substance during a process of pulverizing the gasification slag and/or ash residue, wherein the weight ratio of the added amount of humic acid substance relative to the total heavy metal amount in the gasification slag and/or ash residue is 3-40:1; then aging the pulverized product for more than 24 hours; loading 1 to 20 parts by weight of the microbial bacterial fertilizer on the detoxified gasification slag and/or ash residue with respect to 100 parts by weight of the gasification slag and/or ash residue. The prepared slag bacteria fertilizer is used in combination with the humic acid substance to renovate the degraded soil with rapid renovation and desirable effect.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.