Method for preparing solid repair agent by using protein peptide and repairing soil by using soil repair agent

Abstract

The invention provides a method for preparing a solid repair agent by using protein peptide and repairing soil by using the soil repair agent. The method comprises the steps of: preparing the protein peptide prepared by using a method in the patent ZL200610019063.7 or the protein peptide prepared by using protein-containing waste according to the following formula in site, wherein the formula comprises 1) 5-10 percent of protein peptide, 2-6 percent of molasses and the balance of water; 2) 5-10 percent of protein peptide, 0.5-1.0 percent of laccase crude product, 1-2 percent of laccase strain and the balance of water; and 3), 5-10 percent of protein peptide and the balance of water. The formula 1 is suitable for the soil in which plants are planted and which is seriously polluted by heavy metal ions; the formula 2 is suitable for the soil in which plants are planted and which is seriously polluted by heavy metal ions and is polluted by polycyclic aromatic hydrocarbon; and the formula 3 is suitable for directly acting on conventional polluted soil with light pollution. The protein peptide soil repair agent can be used as a nutrient in which a microorganism or indigenous microorganism for promoting the enrichment of the plants to the heavy metal ions, so that the polluted soil is repaired. The soil repair agent has low price, high efficiency and good effect.

Description

technical field [0001] The present invention relates to the technology of remediation and improvement of polluted soil, especially the preparation of soil remediation agent and soil remediation method using protein peptides. Using the soil remediation agent can promote the rapid growth of external microorganisms and indigenous microorganisms in the soil, and can also promote the growth of plants. The rapid growth of microbes and plants strengthens the enrichment of heavy metal ions, realizes the restoration of farmland soil around pollution sources such as cities, mines, and chemical plants, and achieves the dual environmental protection purpose of using waste to control pollution. Background technique [0002] Soil is one of the four elements of the environment and plays an irreplaceable role in the natural ecosystem. With the development of industrialization, urbanization and high agricultural intensification, the pollution of industrial wastes, agricultural fertilizers an...

AI Technical Summary

Problems solved by technology

Third, apply soil remediation agents. There are many types of soil remediation agents reported at present, but they are mainly used to repair barren soil. The main components are high nitrogen, phosphorus, potassium and biological nitrogen-fixing bacteria. , especially for soils polluted by heavy metal ions, there is no specific remediation agent for sale. Some research reports have tested the application of sugar, nitrate, phosphate, potassium salt and other ingredients or directly applied organic fertilizers for the remediation of contaminated soil. It has been shown that Has a certain restoration effect, but has not yet been industrialized and has no specific products for sale

There are no reports about protein peptides as soil remediation agents. The current protein peptides are mainly used in protein foaming agents (food or foam fire extinguishing agents) or protein foam concrete foaming agents. The preparation process is usually hydrolyzed with sodium hydroxide or hydrochloric acid. Part of it is the hydrolysis of quicklime. Since the protein peptide prepared by hydrolysis of hydrochloric acid and sodium hydroxide has chloride ions and sodium ions, it will cause salt poisoning to the growth of microorganisms and plants, so it cannot be used as a soil remediation agent, but the protein peptide produced by hydrolysis of quicklime And the protein peptide prepared according to ZL200610019063.7 patent technology can be used directly, because calcium ions can be neutralized by organic acids and carbon dioxide in the air to form calcium salt, no matter it is harmless to plants, microorganisms, or soil, this protein peptide can be directly used Used as a soil remediation agent or formulated in different combinations for soil remediation of different levels of contamination