Mine ecological regreening matrix material as well as preparation method and application thereof
A matrix material and mine technology, applied in the field of mine ecological restoration green matrix and its preparation, can solve the problems of poor sustainability, high cost, and difficult to be treated, and achieve the effect of improving the ecological environment of mines and reducing damage
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Embodiment 1
[0055] The municipal sludge was taken from Shanghai Quyang Sewage Treatment Plant, with a moisture content of about 89.5%±0.2% and an organic matter content of 313.5g / kg; the water content of the hydrothermally modified product of the municipal sludge was about 45.6±0.2%.
[0056] Iron content in pyrite soil is 1.3% (as FeS 2 count).
[0057] The materials are respectively prepared according to the following formula, and the total material of each formula is about 0.5t: municipal sludge hydrothermal modification product: mine soil: manganese oxidizing bacteria = 1: 150%: 0.1%.
[0058] according to figure 1 The process flow chart shown in the preparation of mine ecological restoration nutrient covering soil, the specific steps are as follows:
[0059] 1) Add the municipal sludge into the hydrothermal reaction kettle, heat at 220°C for 20 minutes, and press filter to obtain a mud cake for later use. The moisture content of the mud cake is 45.6±0.2%;
[0060] 2) Crush or grin...
Embodiment 2
[0064] The municipal sludge was taken from Shanghai Quyang Sewage Treatment Plant, with a moisture content of about 89.5%±0.2% and an organic matter content of 313.5g / kg; the water content of the hydrothermally modified product of the municipal sludge was about 45.6±0.2%.
[0065] Iron content in pyrite soil is 1.6% (as FeS 2 count).
[0066] The materials are respectively prepared according to the following formula, and the total material of each formula is about 0.5t: municipal sludge hydrothermal modification product: mine soil: manganese oxidizing bacteria = 1: 150%: 0.1%.
[0067] according to figure 1 The process flow chart shown in the preparation of mine ecological restoration nutrient covering soil, the specific steps are as follows:
[0068] 1) Add the municipal sludge into the hydrothermal reaction kettle, heat at 220°C for 20 minutes, and press filter to obtain a mud cake for later use. The moisture content of the mud cake is 45.6±0.2%;
[0069] 2) Crush or grin...
Embodiment 3
[0073] The municipal sludge was taken from Shanghai Quyang Sewage Treatment Plant, with a moisture content of about 89.5%±0.2% and an organic matter content of 313.5g / kg; the water content of the hydrothermally modified product of the municipal sludge was about 45.6±0.2%.
[0074] Iron content in pyrite soil is 1.6% (as FeS 2 count).
[0075] The materials are respectively prepared according to the following formula, and the total material of each formula is about 0.5t: municipal sludge hydrothermally modified product: mine soil: manganese oxidizing bacteria = 1: 150%: 0.3%.
[0076] according to figure 1 The process flow chart shown in the preparation of mine ecological restoration nutrient covering soil, the specific steps are as follows:
[0077] 1) Add the municipal sludge into the hydrothermal reaction kettle, heat at 220°C for 20 minutes, and press filter to obtain a mud cake for later use. The moisture content of the mud cake is 45.6±0.2%;
[0078] 2) Crush or grind ...
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