Mineral composite material for removing lake endogenous pollution and use thereof

Abstract

The invention discloses a mineral composite material for eliminating internal pollution of lakes and application thereof. The composite material is characterized in that the composite material is prepared by the following steps: natural plaster, anhydrite or industrial waste residues taking plaster as a main component and limonite ores or sulfuric acid cinders or hematite ores or a material whichcontains iron with the weight percentage higher than 20 percent, are taken as raw materials and are blended and mixed to obtain a mixture, the mol ratio of S to Fe is between 20 to 1 and 1 to 3 in the mixture, and the mixture is ground into powder which passes through a sieve with meshes of between 10 and 200; and the powder is added into the treated water body according to the adding amount of between 50 and 1,000g / m<2>. Aiming at the problem that serious internal pollution exist in water bodies of lakes, rivers and landscapes, the invention provides a material and a method for passivating and fixing phosphorus in sediment, thereby preventing the release of the phosphorus in the sediment to the water bodies further to eliminate the internal pollution.

Description

Mineral Composite Materials and Applications Used to Eliminate Intrinsic Pollution in Lakes technical field The invention relates to a mineral composite material used to eliminate endogenous pollution of rivers, landscape water bodies and lakes, its preparation and application method, and more specifically relates to a method of using mineral materials to fix phosphorus, inhibit methane production, and reduce greenhouse gas emissions technical method. Background technique Eutrophication mainly occurs in lakes, reservoirs, bays, plain river ditches and ditches, urban rivers, urban landscape water bodies and other waters with poor self-purification ability. The research results of relevant units show that some urban lakes and reservoirs in my country have reached the level of moderate eutrophication and heavy eutrophication, and there are serious eutrophication in urban, suburban lakes and landscape water bodies. Eutrophication pollution has become a major environmental pro...

AI Technical Summary

Problems solved by technology

Aiming at the serious problem of internal source pollution of lakes, rivers, and landscape water, it aims to provide a material and technical method for passivation and fixation of phosphorus in sediment, so as to prevent the release of phosphorus in sediment to water bodies and eliminate endogenous pollution

Images