Remediation material for sediment as well as preparation and application of remediation material

Abstract

The invention relates to the technical fields of waste material utilization and treatment of sediment from black odor water and eutrophic water, and in particular relates to a remediation material forthe sediment as well as preparation and application of the remediation material. The remediation material for the sediment comprises the following preparation raw materials: a biomass material, an iron-containing material and auxiliary additives, wherein the auxiliary additives comprise a dispersing agent and a binder. According to the remediation material provided by the invention, a formula ofa remediation material for water sediment is improved, so that biomass waste resources rich in a cellulose component, such as discarded reed stalks, straw and wood chips can be recycled, waste resources such as iron-containing waste ore or waste residues can also be recycled, and the finally formed product can be used for in-situ treatment of the water sediment to reduce or even eliminate releaseof pollutants from the water sediment.

Description

technical field [0001] The invention relates to the technical field of utilization of waste materials and treatment of black and odorous water and eutrophic water bottom mud, in particular to a bottom mud restoration material and its preparation and application. Background technique [0002] Production and domestic wastewater are directly discharged into rivers or lakes without standard treatment, causing the total amount of pollutants to exceed the self-purification capacity of the water body, resulting in eutrophication of the water body, and even the formation of black and odorous water bodies. Eutrophic water bodies and black and odorous water bodies have been operating for a long time It will cause a large amount of pollutants to be deposited in the sediment of the water body. Even after the sewage interception work and water body treatment work are completed, a large amount of pollutants will continue to be released from the sediment of the water body. [0003] At pres...

AI Technical Summary

Problems solved by technology

[0002] Production and domestic wastewater are directly discharged into rivers or lakes without standard treatment, causing the total amount of pollutants to exceed the self-purification capacity of the water body, resulting in eutrophication of the water body, and even the formation of black and odorous water bodies. Eutrophic water bodies and black and odorous water bodies have been operating for a long time It will cause a large amount of pollutants to be deposited in the sediment of the water body. Even after the sewage interception work and the water body treatment work are completed, a large amount of pollutants will still be continuously released from the sediment of the water body

[0003] At present, engineering methods are mostly used in domestic sediment treatment methods for eutrophic water bodies and black and odorous water bodies, that is, to remove all sediments from water bodies through engineering dredging, but it is impossible to completely remove polluted sludge during the dredging process. Or it is unrealistic to use engineering dredging for some water bodies with light siltation or water bodies that are extremely difficult to dredge. Therefore, how to effectively remove pollutants in the sediment of the water body in situ will be an urgent need to solve in the process of water body treatment. a question of