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A method for regenerating green energy using coking wastewater

A technology for coking wastewater and green energy, which is applied in chemical instruments and methods, horticultural methods, energy wastewater treatment, etc., can solve the problems of increasing the toxicity of coking wastewater, high cost of biological methods, and slow physical methods, and achieves environmental protection and efficient use of risks. , no risk of use, the effect of accelerating photosynthetic rate and respiration rate

Active Publication Date: 2022-07-12
JIANGSU OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above research methods all have certain guiding significance for the effective treatment of coking wastewater, but these research methods also have more or less different shortcomings: the addition of chemical agents in the chemical method increases the toxicity of coking wastewater, and will also cause environmental damage. Certain hazards; physical methods may have slow results or high costs in operation; biological methods may have high costs, take a long time, or have defects such as difficulty in operation

Method used

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  • A method for regenerating green energy using coking wastewater
  • A method for regenerating green energy using coking wastewater
  • A method for regenerating green energy using coking wastewater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] (1) Sampling:

[0046] The coking wastewater was taken from the local coking plant, the magnetic magnesium-aluminum hydrotalcite was synthesized by the co-precipitation method, and the required reagents (analytical grade) were purchased from the chemical reagent factory.

[0047] (2) Pretreatment of coking wastewater:

[0048] Take a certain amount of coking wastewater, irradiate it with electron beam for 13min, and measure 0.5kGy; after irradiation, let it stand for 5min; then add 0.5% (w / v) magnetic magnesium aluminum to it under the condition of avoiding light The hydrotalcite was fully stirred for 10min, and then the coking wastewater liquid was collected by filtration.

[0049] (3) Plant cultivation:

[0050] Take a certain amount of pretreated coking wastewater and dilute it with deionized water to a concentration of 15% (v / v); prepare a number of pottery pots, 80cm high and 60cm wide, and add 40cm deep and uniform river sand (grain). diameter 1mm), the selecte...

Embodiment 2

[0058] (1) Sampling:

[0059] The sampling of coking wastewater and required chemical reagents is the same as that in Example 1.

[0060] (2) Pretreatment of coking wastewater:

[0061] Take a certain amount of coking wastewater, irradiate it with electron beam for 14min, and measure 0.6kGy; after irradiation, let it stand still for 6min; then add 1% (w / v) magnetic magnesium-aluminum to it under the condition of avoiding light. The hydrotalcite was fully stirred for 11 min, and then the coking wastewater liquid was collected by filtration.

[0062] (3) Plant cultivation:

[0063] Take a certain amount of pretreated coking wastewater and dilute it with deionized water to a concentration of 20% (v / v); prepare a number of pots, 80cm high and 60cm wide, and add 45cm deep and uniform river sand (grain). Diameter 2mm), the selected disease-free and same height water fern seedlings and water fern seedlings of the same height were planted in clay pots, each pot was planted with a w...

Embodiment 3

[0071] (1) Sampling:

[0072] The sampling of coking wastewater and required chemical reagents is the same as that in Example 1.

[0073] (2) Pretreatment of coking wastewater:

[0074] Take a certain amount of coking wastewater, irradiate it with electron beam for 15min, and measure 0.7kGy; after irradiation, let it stand still for 7min; then add 1.5% (w / v) magnetic magnesium-aluminum to it under the condition of avoiding light Hydrotalcite, fully stirred for 12min, and then filtered to collect the coking wastewater liquid.

[0075] (3) Plant cultivation:

[0076] Take a certain amount of pretreated coking wastewater and dilute it with deionized water to a concentration of 22% (v / v); prepare a number of pots with a height of 80cm and a width of 60cm, and add 50cm deep and uniform river sand (grain). Diameter 13mm), the selected disease-free and same height water fern seedlings and water fern seedlings of the same height were planted in clay pots, each pot was planted with ...

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Abstract

The invention discloses a method for regenerating green energy by utilizing coking wastewater, which belongs to the field of energy saving and environmental protection. In the invention, the macromolecular organic matter in the coking wastewater is degraded by means of electron beam irradiation technology and magnetic magnesium aluminum hydrotalcite, and the treated coking wastewater diluent is used for watering plants; in the process of plant growth, the plants are irradiated with electron beams. , after plant growth, the resulting plants are converted into reducing sugars through enzymatic hydrolysis and saccharification. In the method disclosed in the present invention, the raw materials used are wastes or cheap and non-polluting compounds, which have the characteristics of low cost and convenient operation. The organic matter in the coking wastewater promotes the growth of plants, and the growth of plants can in turn purify the coking wastewater. , the grown plants can be treated to obtain high value-added products, and finally realize the energy conversion between coking wastewater and plants, as well as the purpose of green energy regeneration.

Description

technical field [0001] The invention belongs to the field of energy saving and environmental protection, and relates to a method for regenerating green energy by utilizing coking wastewater. Background technique [0002] Energy crisis and environmental pollution have always been a worldwide problem faced by human beings. The development and reuse of waste resources is an effective measure to alleviate the energy crisis and environmental pollution. Coking wastewater is the production water and steam condensation wastewater from the initial cooling of coke oven gas and the coking production process. The composition is very complex, the biodegradability is low, and it is difficult to biodegrade. , but also a direct threat to human health. It is urgent to strengthen the research on the treatment and disposal of coking wastewater. [0003] At present, the commonly used coking wastewater treatment methods include physical chemical method, chemical method, biological method and s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/08A01G7/06A01G7/04C02F101/30
CPCC02F9/00A01G7/045A01G7/06C02F1/00C02F1/001C02F1/30C02F2101/30Y02P60/14
Inventor 相玉琳王德权相玉坤张鹏锋徐广辉
Owner JIANGSU OCEAN UNIV