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In-situ ecological remediation method for phosphate tailings

A technology for ecological restoration and phosphorus tailings, which is applied in the field of in-situ ecological restoration of phosphorus tailings and the treatment of phosphorus tailings to achieve the effect of solving governance problems

Inactive Publication Date: 2019-03-15
四川健全环境集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these existing methods are theoretically feasible and practically applied, it is difficult to fundamentally solve the problem in the face of huge phosphorus tailings

Method used

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  • In-situ ecological remediation method for phosphate tailings
  • In-situ ecological remediation method for phosphate tailings
  • In-situ ecological remediation method for phosphate tailings

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The preparation of embodiment 1 phosphorus tailings control special microbial preparation

[0038] 1. Raw materials

[0039] (1) Preparation of complex microbial flora

[0040] Microbial strains 100 ml. in:

[0041] Compound yeast strains (the number of effective viable bacteria ≥ 300 million / ml) accounted for 30%,

[0042] Composite functional strains (the number of effective viable bacteria ≥ 300 million / ml) accounted for 70%,

[0043] The compound yeast strain consists of Saccharomyces cerevisiae for beer brewing, Saccharomyces cerevisiae for sake brewing, wine yeast (Saccharomyces uvarum) and Saccharomyces cerevisiae for bread production, combining the above Four kinds of bacteria were compounded in equal amounts; wherein, the Saccharomyces cerevisiae used for brewing beer was purchased from China Industrial Microorganism Culture Collection and Management Center, and its commodity number was CICC31105; the Saccharomyces cerevisiae used for brewing sake was purch...

Embodiment 2

[0052] The preparation of embodiment 2 phosphorus tailings control special microbial preparation

[0053] 1. Raw materials

[0054] (1) Preparation of complex microbial flora

[0055] Microbial strains 100 ml. in:

[0056] Compound yeast strains (the number of effective viable bacteria ≥ 300 million / ml) accounted for 60%,

[0057] Composite functional strains (the number of effective viable bacteria ≥ 300 million / ml) accounted for 40%,

[0058] The compound yeast strain consists of Saccharomyces cerevisiae for beer brewing, Saccharomyces cerevisiae for sake brewing, wine yeast (Saccharomyces uvarum) and Saccharomyces cerevisiae for bread production, combining the above Four kinds were compounded in equal amounts; the Saccharomyces cerevisiae used for brewing beer was purchased from China Industrial Microorganism Culture Collection and Management Center, and its product number was CICC31105; the Saccharomyces cerevisiae used for brewing sake was purchased from China Industr...

Embodiment 3

[0067] The preparation of embodiment 3 phosphorus tailings control special microbial preparation

[0068] 1. Raw materials

[0069] (1) Preparation of complex microbial flora

[0070] Microbial strains 100 ml. in:

[0071] Compound yeast strains (the number of effective viable bacteria ≥ 300 million / ml) accounted for 45%,

[0072] Composite functional strains (the number of effective viable bacteria ≥ 300 million / ml) accounted for 55%,

[0073] The compound yeast strain is composed of Saccharomyces cerevisiae for brewing beer, Saccharomyces cerevisiae for sake brewing, Saccharomyces uvarum for wine and Saccharomyces cerevisiae for bread production, combining the above four The same amount of bacteria was compounded; the Saccharomyces cerevisiae used for brewing beer was purchased from China Industrial Microbiology Culture Collection Management Center, and its commodity number was CICC31105; the Saccharomyces cerevisiae used for brewing sake was purchased from China Industr...

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Abstract

The invention discloses an in-situ ecological remediation method for phosphate tailings. The invention firstly discloses a special microbial preparation for disposing phosphate tailings. The microbialpreparation comprises a composite microbial community, a composite organic matter I and a composite organic matter II; the preparation method of the microbial preparation comprises the following steps: sterilizing and cooling the composite organic matter I, and putting the composite organic matter I in the composite microbial community for aerobic fermentation to obtain fermentation liquor; adding water to the composite organic matter II and mixing uniformly; adding the fermentation liquor, mixing uniformly and stacking for aerobic fermentation; and crushing. The invention further discloses the in-situ ecological remediation method for the phosphate tailings. The in-situ ecological remediation method comprises the following steps of: connecting the special microbial preparation for disposing phosphate tailings into a matrix to obtain a microbial matrix; mixing the microbial matrix at the surface layers of the phosphate tailings to realize primary loamification of the surface layers ofthe phosphate tailings; and subsequently planting pennisetum sinese and carrying out regular management. The in-situ ecological remediation method disclosed by the invention implements in-situ ecological remediation of the phosphate tailings by combining microorganisms with plants and can realize loamification of the phosphate tailings and gradually degrade harmful elements contained in the phosphate tailings, thereby fundamentally solving the problem of disposal of the phosphate tailings.

Description

technical field [0001] The invention relates to a treatment method for phosphorus tailings, in particular to an in-situ ecological restoration method for phosphorus tailings, and belongs to the field of biological treatment of phosphorus tailings. Background technique [0002] Phosphorus is one of the indispensable elements for the growth of animals and plants, and is widely used in food, feed, dye, sugar, ceramics, chemical industry, metallurgy, military and so on. Due to the rapid growth of the demand for phosphorus, the mining and processing of phosphate rock resources has been intensified, and a large amount of solid waste, namely "phosphate tailings", has been generated. This not only endangers the ecological environment around the mine, but also forms a large area of ​​tailings accumulation site, resulting in waste of resources and environmental pollution. [0003] Phosphorus tailings are mainly composed of calcium-magnesium salt minerals, mainly dolomite, followed by...

Claims

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Application Information

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IPC IPC(8): B09B3/00C12N1/18C12N1/20C12N1/14C12R1/865C12R1/07C12R1/80
CPCB09B3/00C12N1/14C12N1/18C12N1/20
Inventor 袁登辉田茂明刘先庆宋君祥于晓龙袁洁莉
Owner 四川健全环境集团有限公司
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