Ternary composite organic pollution repairing agent containing iron oxide, humus and reducing bacteria thereof, and preparation method of repairing agent

Abstract

The invention discloses a ternary composite repairing agent, containing iron oxide, humus and reducing bacteria thereof, for in-situ remediation of organic pollution in soil and sediment. The repairing agent of the invention is prepared by carrying out fermentation enlarge culture on ferric reducing microorganism and mixing with iron oxide and humus uniformly. The microbial repairing agent of the invention can accelerate degradation of organic pollutants under an anaerobic condition and has good in-situ remediation effect on organic pollution soil and black and stink sediment. Raw materials are all natural substances and environment-friendly, and cause no secondary pollution. The microbial repairing agent of the invention is simply applied without excavating or disturbing original environment or oxygen, requires low work amount and small cost, and is apt to large-scale usage. The preparation method of the repairing agent of the invention can obtain a microbial repairing agent product simply and fast.

Description

technical field

[0001] The invention relates to an organic pollution remediation agent and a preparation method thereof, in particular to a ternary composite remediation agent of iron oxide, humus and its reducing bacteria which can be applied to in-situ restoration of organic pollutants in soil and river bottom mud and its preparation method. Background technique

[0002] In recent years, with the extensive use of chemical fertilizers and pesticides, a large amount of organic pollutants such as petroleum, polycyclic aromatic hydrocarbons, and organic chlorine have been discharged, resulting in increasingly serious organic pollution of soil and water in my country. Organic pollutants in soil and water enter the human body from the food chain through the soil-plant system and farmland irrigation, directly endangering human health. Therefore, the research on the remediation technology of organic polluted soil and water body has become a hot spot in environmental protection re...