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Water disposal percolation filler prepared by coal gangue and application method thereof

A technology for coal gangue and water treatment, applied in biological water/sewage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., to achieve the effects of abundant pores, low cost and wide source of raw materials

Active Publication Date: 2019-01-25
中科华鹿(合肥)环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the deficiencies in the prior art, the present invention provides a water treatment percolation filler prepared from coal gangue and its application method, aiming at obtaining a water treatment percolation filler that is easy to produce and low in cost, and solves the problem of Resource Utilization of Coal Gangue

Method used

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  • Water disposal percolation filler prepared by coal gangue and application method thereof
  • Water disposal percolation filler prepared by coal gangue and application method thereof
  • Water disposal percolation filler prepared by coal gangue and application method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0025] (1) Investigate and collect typical samples of coal gangue that meet the requirements. Use X-ray diffraction to analyze the main mineral composition of coal gangue as kaolinite, quartz, illite, and chlorite. The results obtained by chemical phase analysis show that: yellow iron The ore content is 1.6%, the siderite content is 4.6%, and the calcite + dolomite content is 6%.

[0026] (2) Treat the coal gangue with a counter-roller crusher to obtain the material that has passed a 10mm sieve, sieving to obtain particles of 1-2mm, 2-3mm, 3-6mm, and 6-10mm with different particle sizes, and wash with water to obtain Coal gangue particles as water treatment percolation filler.

[0027] (3) The obtained coal gangue particles of different particle sizes are filled into a plastic tube with a diameter of 5 cm in the order from coarse to fine. The filling height of each particle is 20 cm, and the eutrophic river water is used as Influent (influent water quality parameter is COD57mg / L, ...

Embodiment 2

[0029] (1) Collect washed coal gangue samples from coal mines, analyze the main mineral composition of coal gangue by X-ray diffraction to be kaolinite, quartz, illite, and chlorite, and use chemical phase analysis to obtain pyrite content of 1.3%, siderite The ore content is 1.2%, and the calcite + dolomite content is 2.3%.

[0030] (2) Siderite ore collected from iron mines, with a siderite content of 67%; limestone ore collected from limestone mines, with a calcite content of 86%.

[0031] (3) Process 90kg coal gangue, 4kg siderite ore, 5kg limestone ore with a pair of roller crusher to obtain the material that has passed the 10mm sieve and mix it evenly. The sieving is 1-2mm, 2-3mm, 3-6mm, 6- 10mm particles of different sizes are washed with water to obtain coal gangue particles used as water treatment percolation fillers.

[0032] (4) Fill the obtained particles with different particle diameters into a 5cm diameter plastic tube according to the order from coarse to fine. The fi...

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Abstract

The invention discloses a water disposal percolation filler prepared by coal gangue and an application method thereof. The filler is coal gangue particles with a demanded grain size, wherein the coalgangue particles are obtained by adopting the coal gangue rich in activated iron mineral and limestone and / or dolomite as a raw material and then crushing, screening and washing the raw material; during application, it is only needed to fill a water disposal building with the coal gangue particles different in grain size according to a demanded order. The water disposal percolation filler can be widely applied to polluted rainwater disposal in construction of a sponge city, artificial wetlands and manual underwater filtering and has the advantages that the sources of the raw material are extensive, the cost is low, waste is utilized to dispose waste, and the method is environmentally friendly.

Description

Technical field [0001] The invention belongs to the technical field of solid waste resource utilization and water treatment materials, and specifically relates to a coal gangue resource utilization method and water pollution control materials. Background technique [0002] Coal gangue is a large-scale industrial solid waste, accounting for more than 20% of the total industrial solid waste in the country. During the coal development process, an average of 150kg of coal gangue is produced per ton of coal. At present, the utilization rate of coal gangue resources in my country is still less than 40%, leading to long-term accumulation of coal gangue in coal mine cities, which has a serious impact on the urban landscape environment, atmospheric environment and ecological environment. [0003] The current method of reducing coal gangue emissions is underground backfilling of the stope, and the method of on-site disposal of coal mines is to fill the coal mining subsidence area to achieve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/30C02F101/30C02F101/16C02F101/10
CPCC02F3/302C02F2101/105C02F2101/16C02F2101/30
Inventor 魏星陈赫然陈天虎
Owner 中科华鹿(合肥)环保科技有限公司
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