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Urban river ecological environment restoration process

A technology of ecological environment and river course, applied in biological water/sewage treatment, water resource protection, water/sludge/sewage treatment, etc., can solve the problem that water body is difficult to self-purify and return to normal state, so as to promote the growth of aquatic organisms Formation of conditions, good effect, and the effect of reducing erosion and wear

Inactive Publication Date: 2020-05-19
张艳洁
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, even if the eutrophic water body is cut off from the source of external nutrients, it is difficult for the water body to purify itself and return to a normal state.

Method used

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  • Urban river ecological environment restoration process
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  • Urban river ecological environment restoration process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A high-efficiency sediment preparation method for urban river ecological environment, comprising the following steps:

[0032] (1) Send 100kg of dried sludge, 5kg of phosphorous tailings powder, 20kg of dolomite waste slag powder, and 20kg of straw powder into a high-speed granulator for granulation, and then send them into a carbonization furnace with a temperature of 800°C for pyrolysis Carbonization and crushing to obtain a particle size of 0.1mm and a specific surface area of ​​1035m 2 / g, the pore volume is 0.28cm 3 / g of pre-carbonized material;

[0033] (2) 50kg sepiolite, 4kg cordierite, 2kg vaseline, 1kg polyethylene glycol, and 40kg water are mixed, sent into a ball mill and ball milled to a particle size of 5 μm, the ball mill rotating speed is 120rpm, and the slurry after ball milling is dried, Then sinter at 1000°C for 10 hours, and pulverize to obtain a pre-sintered material with a particle size of 1mm;

[0034] (3) Mix 100kg of pre-carbonized material ...

Embodiment 2

[0039] A high-efficiency sediment preparation method for urban river ecological environment, comprising the following steps:

[0040] (1) Send 100kg of dried sludge, 15kg of phosphorous tailings powder, 10kg of dolomite waste slag powder, and 40kg of straw powder into a high-speed granulator for granulation, and then into a carbonization furnace at a temperature of 700°C for pyrolysis Carbonization and crushing to obtain a particle size of 0.4mm and a specific surface area of ​​1041m 2 / g, the pore volume is 0.287cm 3 / g of pre-carbonized material;

[0041](2) 20kg sepiolite, 12kg cordierite, 1kg vaseline, 2kg polyethylene glycol, 20kg water are mixed, sent into the ball mill and ball milled to a particle size of 15 μm, the ball mill rotating speed is 80rpm, and the slurry after ball milling is dried, Then sinter at 1150°C for 5 hours, and pulverize to obtain a pre-sintered material with a particle size of 2mm;

[0042] (3) Mix 100kg of pre-carbonized material and 20kg of p...

Embodiment 3

[0047] A high-efficiency sediment preparation method for urban river ecological environment, comprising the following steps:

[0048] (1) Send 100kg of dried sludge, 8kg of phosphorous tailings powder, 17kg of dolomite waste slag powder, and 25kg of straw powder into a high-speed granulator for granulation, and then into a carbonization furnace at a temperature of 770°C for pyrolysis Carbonization and crushing to obtain a particle size of 0.2mm and a specific surface area of ​​1055m 2 / g, the pore volume is 0.292cm 3 / g of pre-carbonized material;

[0049] (2) Mix 40kg of sepiolite, 6kg of cordierite, 1.8kg of vaseline, 1.3kg of polyethylene glycol, and 35kg of water, and send them into a ball mill for ball milling until the particle size is 8 μm. The speed of the ball mill is 110 rpm. Dry, then sinter at 1050°C for 8 hours, and pulverize to obtain a pre-sintered material with a particle size of 1.2mm;

[0050] (3) Mix 100kg of pre-carbonized material and 35kg of pre-sinter...

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Abstract

The invention discloses an urban river ecological environment restoration process, which comprises the following steps of: splitting a bamboo pole into two halves along the axial direction of the bamboo pole and breaking through bamboo joints of the bamboo pole for later use; fishing solid garbage deposited in an urban river channel, removing non-degradable substances, laying zeolite at the bottomof the river channel, and then laying square filler units on the surface of a zeolite layer in sequence, whereineach square filler unit is formed by bundling aplurality of bamboo poles with upward sections; punching holesin the square filler units, and inserting aquatic plants into the holes; layinghigh-efficiency bottom mud prepared by a high-efficiency bottom mudpreparation method for the urbanriver ecological environmentin the square filler units, then covering the surface of the high-efficiency bottom mudwith river sand, and laying a layer of cobblestoneon the surface of the river sand.According to the method, the riverway is repaired, the self-purification capacity effect of bottom mud repairing and water quality recovery is better, and the urban river ecological environment restoration process is particularly suitable for treatment of urban black and odorous riverways.

Description

technical field [0001] The invention relates to the technical field of ecological restoration, in particular to a restoration process for urban river ecological environment. Background technique [0002] With the rapid development of the economy, a large amount of industrial wastewater and domestic sewage are discharged into surface water bodies such as rivers and lakes. Due to the discharge of nitrogen, phosphorus and other elements, and the lack of necessary circulation in the water body, algae and other plankton are rapidly multiplying. Dissolved oxygen decreases, water quality deteriorates, and fish and other organisms die in large numbers, resulting in eutrophication of water bodies, destroying aquatic ecological balance, and forming algal blooms. During the decay process of algae and other plankton residues, a large amount of nutrients such as nitrogen and phosphorus are released into the water for the new generation of algae and other organisms to use. Therefore, eve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/32
CPCC02F3/327Y02A20/402
Inventor 张艳洁
Owner 张艳洁
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