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Plant restoration method of tetracycline-polluted wastewater

A phytoremediation and tetracycline technology, which is applied in the field of phytoremediation of tetracycline-contaminated wastewater and environmental remediation, can solve the problems of no tetracycline antibiotics, high energy consumption, and difficult treatment, and achieve low maintenance, good effect, and wide application range wide effect

Inactive Publication Date: 2013-04-17
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Wastewater from the production of antibiotics such as tetracycline belongs to high-concentration organic wastewater and has certain toxicity. Often requires a large amount of dilution water, and high energy consumption
At present, there is no research and report on the removal of tetracycline antibiotics in wastewater by phytoremediation of centipede grass

Method used

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  • Plant restoration method of tetracycline-polluted wastewater
  • Plant restoration method of tetracycline-polluted wastewater
  • Plant restoration method of tetracycline-polluted wastewater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A Phytoremediation Method for Contaminated Wastewater Containing Tetracycline Concentration of 1000μg / L

[0040] (1) Discharge the tetracycline-contaminated wastewater to be treated in the storage tank. The depth of the storage tank is 1.3m, and the length and width are designed according to the actual wastewater discharge;

[0041] (2) Choose a flat polystyrene foam with a thickness of 3.0cm to make a floating bed. The width of the floating bed is the same as the width of the storage tank, and the length is smaller than the length of the storage tank. Holes are punched on it with a diameter of 0.8cm and the distance between adjacent holes is 15cm. , distributed in a rectangular array, plant 1-2 centipede grasses in each hole, and fix the roots with a sponge plug;

[0042] (3) Place the floating bed made in step (2) in the water storage tank, so that the root system of the centipede grass is completely immersed in the water body, and the upper part of the centipede gras...

Embodiment 2

[0044] Embodiment 2, to the phytoremediation method that is 500 μ g / L polluted waste water to containing tetracycline concentration

[0045] (1) Discharge the tetracycline-contaminated wastewater to be treated in the storage tank. The depth of the storage tank is 1.5m, and the length and width are designed according to the actual wastewater discharge;

[0046] (2) Choose a flat polystyrene foam with a thickness of 3.0cm to make a floating bed. The width of the floating bed is consistent with the width of the water storage tank, and the length is smaller than the length of the water storage tank. Holes are punched on it with a diameter of 1.0 cm and the distance between adjacent holes is 14 cm. Distributed in a rectangular array, plant 1-2 centipede grasses in each hole, and fix the roots with a sponge plug;

[0047] (3) Place the floating bed made in step (2) in the water storage tank, so that the root system of the centipede grass is completely immersed in the water body, and...

Embodiment 3

[0049] Embodiment 3, to the phytoremediation method that is 500 μ g / L polluted waste water to containing tetracycline concentration

[0050] (1) Discharge the tetracycline-contaminated wastewater to be treated in the storage tank. The depth of the storage tank is 1m, and the length and width are designed according to the actual wastewater discharge;

[0051] (2) Choose a flat polystyrene foam with a thickness of 3.0cm to make a floating bed. The width of the floating bed is the same as the width of the water storage tank, and the length is smaller than the length of the water storage tank. Holes are punched on it with a diameter of 1.0 cm and the distance between adjacent holes is 15 cm. , distributed in a rectangular array, plant 1-2 centipede grass in each hole, and fix the roots with a sponge plug;

[0052] (3) Place the floating bed made in step (2) in the water storage tank, so that the root system of the centipede grass is completely immersed in the water body, and the u...

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Abstract

The invention relates to a plant restoration method of tetracycline-polluted wastewater, which comprises the following steps: selecting flat foam plastic as a floating bed, making holes which are uniformly distributed in the floating bed, and growing 1-2 ciliate desert-grass plants in each hole, wherein the distance between every two adjacent holes is 10-15 cm; discharging tetracycline-polluted wastewater to be treated into a water storage tank; putting the floating bed in the water storage tank, wherein the root of the ciliate desert-grass is completely immersed in water, and the overground part of the ciliate desert-grass is above the water; and finishing water body restoration within 4-6 days. The invention does not have special requirements for the pH value of the polluted water body, has the advantages of high tetracycline removal efficiency, low investment, low maintenance cost, small engineering work load, low energy consumption and the like, is simple to operate, can be used repeatedly, does not generate secondary pollution, and is a green restoration technique with wide application range and favorable effect.

Description

technical field [0001] The invention relates to environmental restoration technology, in particular to a phytoremediation method for tetracycline-contaminated wastewater, and belongs to the technical field of environmental engineering. Background technique [0002] Phytoremediation is the use of green plants to transfer, accommodate or transform pollutants to make them harmless to the environment. The object of phytoremediation is soil and water polluted by heavy metals, organic matter or radioactive elements. Studies have shown that through the absorption, volatilization, root filtration, degradation, and stabilization of plants, pollutants in soil or water can be purified to achieve the purpose of purifying the environment. Therefore, phytoremediation is a promising and developing method for cleaning the environment. Polluting green technology. Phytoremediation has the advantages of low cost, no damage to soil and river ecological environment, and no secondary pollution....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/32
Inventor 李学文王永杰李杰杨曦伟赵慧男
Owner SHANDONG UNIV
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