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A water treatment percolation filler prepared from coal gangue and its application method

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 effect of wide source of raw materials, abundant pores and low cost

Active Publication Date: 2021-03-09
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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  • A water treatment percolation filler prepared from coal gangue and its application method
  • A water treatment percolation filler prepared from coal gangue and its application method
  • A water treatment percolation filler prepared from coal gangue and its application method

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Effect test

Embodiment 1

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

[0026] (2) Coal gangue is treated with the roller crusher to obtain the material of 10mm sieve, sieved to obtain 1-2mm, 2-3mm, 3-6mm, 6-10mm different particle size particles, washed with water, promptly obtained for use Coal gangue particles used as percolation filler for water treatment.

[0027] (3) Fill the obtained coal gangue particles with different particle sizes into plastic pipes with a diameter of 5 cm according to the sequence from coarse to fine, and the filling height of each particle size is 20 cm, using eutrophic river water as Influent water (influent water quality parameters are COD57mg / L, NH 3 -N 7mg / L, NO ...

Embodiment 2

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

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

[0031] (3) 90kg of coal gangue, 4kg of siderite ore, and 5kg of limestone ore are processed with a roller crusher to obtain materials that have passed a 10mm sieve and mixed evenly, and sieved to obtain 1-2mm, 2-3mm, 3-6mm, 6- The particles of different particle sizes of 10 mm are washed with clean water to obtain coal gangue particles used as water treatment percolation fillers.

[0032] (4) Fill the obtained particles of different particle sizes into plastic pipes with a diameter of 5 cm acco...

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Abstract

The invention discloses a water treatment percolation filler prepared from coal gangue and an application method thereof. The filler uses coal gangue rich in active iron minerals and limestone and / or dolomite as a raw material, and is crushed, screened, The coal gangue particles with the required particle size obtained after washing only need to be filled into the water treatment structure according to the required order during application. The water treatment percolation filler of the present invention can be widely used in percolation materials for polluted rainwater treatment in the construction of sponge cities, percolation materials for artificial wetlands, and artificial submerged filter fillers. Environmentally friendly features.

Description

technical field [0001] The invention belongs to the technical field of solid waste resource utilization and water treatment materials, and in particular relates to a coal gangue resource utilization method and a water pollution control material. Background technique [0002] Coal gangue is an industrial solid waste with a large amount and a wide range, accounting for more than 20% of the total industrial solid waste in the country. In the process of coal development, an average of about 150kg of coal gangue is produced per ton of coal. At present, the resource utilization rate of coal gangue in my country is still less than 40%, which leads to the long-term accumulation of coal gangue in coal mines and cities, which has a serious impact on the urban landscape environment, atmospheric environment and ecological environment. [0003] The current method to reduce coal gangue emissions is to backfill the stope, and the way to dispose of coal mines on the spot is to fill the coa...

Claims

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Application Information

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Patent Type & Authority Patents(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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