Method for manufacturing water retaining/absorption dam for intercepting fire fighting wastewater

A production method and water absorption technology, which are applied in water conservancy projects, marine engineering, coastline protection and other directions, can solve the problems of intercepting fire-fighting wastewater, hidden dangers, and sharp reduction in water absorption, so as to block the impact of fire-fighting wastewater, prevent potential safety hazards, and respond to emergency situations. Ability-enhancing effect

Inactive Publication Date: 2011-05-04
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. In the case of explosion and fire, the firewall and drainage pipes are damaged, making it difficult to play the role of water retaining and drainage;
[0006] 2. Temporary earth dams have the problems of slow laying speed, leakage and adsorption pollution;
[0007] 3. Since pipelines are often buried underground at chemical accident sites, it will bring safety hazards to the soil taken from the site when building earth dams;
[0008] 4. It is difficult or too late to take soil to build an earth dam on site, so that the waste water flows to the outside world in a large area, and even flows into rivers, rivers, lakes, and seas, polluting water bodies;
[0009] 5. Earth was taken from the accident site to build the dam, which was labor-intensive
[0012] The flood control bag in the above-mentioned patent is not used for the interception of fire-fighting waste water because of the following defects:
[0013] 1. Fire-fighting wastewater, especially the lack of fire-fighting wastewater containing complex organic poisons in chemical emergency accidents. The water absorption of the resin used in the flood control bag in the above patent is sharply reduced, so the amount of resin is greatly increased, an

Method used

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  • Method for manufacturing water retaining/absorption dam for intercepting fire fighting wastewater
  • Method for manufacturing water retaining/absorption dam for intercepting fire fighting wastewater
  • Method for manufacturing water retaining/absorption dam for intercepting fire fighting wastewater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] Prepare starch solution with 120g of pullulan and 1440g of water, gelatinize at 100°C for 2min, add 0.18g of potassium persulfate and acrylic acid monomer, the monomer is neutralized by 25% sodium hydroxide solution , neutralization degree 80%, stirring reaction for 30min, while cooling to 60°C with nitrogen gas, then adding 0.003g of N,N'-methylenebisacrylamide, gradually stopping stirring, and carrying out crosslinking reaction in a constant temperature water bath at 65°C 2 ~3h, drying and grinding to obtain powdery viscous water-absorbing resin (11).

[0062] The water-retaining and absorbing dam comprises an air bag (1) made of waterproof material, a compartment (3), a belt (8), a belt (9) and a belt (10) made of water-absorbing material; the upper and lower parts The interface (5) is connected by sewing, and the gap around the upper and lower parts is sealed with polyurethane glue after the upper and lower parts are connected. Put the bar-shaped support (4) in the...

Embodiment 2

[0064] Prepare starch solution with 120g of amylopectin and 1440g of water, gelatinize at 130°C for 1.8min, add 0.18g of potassium persulfate and acrylic acid monomer, the monomer is passed through a sodium hydroxide solution with a mass fraction of 25%. And, with a neutralization degree of 80%, stir the reaction for 30 minutes, and cool to 60°C with nitrogen gas at the same time, then add 0.003g of N,N'-methylenebisacrylamide, gradually stop stirring, and carry out cross-linking reaction in a constant temperature water bath at 65°C After 2-3 hours, dry and grind to obtain a powdery viscous water-absorbing resin (11).

[0065] The water-retaining and absorbing dam comprises an air bag (1) made of waterproof material, a compartment (3), a belt (8), a belt (9) and a belt (10) made of water-absorbing material; the upper and lower parts The interface (5) is connected by sewing technology, and the gaps around the upper and lower parts are sealed with sealant after the upper and low...

Embodiment 3

[0067] Prepare starch solution with 120g of amylopectin and 1440g of water, gelatinize at 150°C for 1.5min, add 0.18g of potassium persulfate and acrylic acid monomer, the monomer is passed through a sodium hydroxide solution with a mass fraction of 25%. And, with a neutralization degree of 80%, stir the reaction for 30 minutes, and cool to 60°C with nitrogen gas at the same time, then add 0.003g of N,N'-methylenebisacrylamide, gradually stop stirring, and carry out cross-linking reaction in a constant temperature water bath at 65°C After 2-3 hours, dry and grind to obtain a powdery viscous water-absorbing resin (11).

[0068] The water-retaining and absorbing dam comprises an air bag (1) made of waterproof material, a compartment (3), a belt (8), a belt (9) and a belt (10) made of water-absorbing material; the upper and lower parts The interface (5) is connected by sewing technology, and the gaps around the upper and lower parts are sealed with sealant after the upper and low...

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Abstract

The invention provides a method for manufacturing a water retaining/absorption dam for intercepting fire fighting wastewater. The invention is characterized in that the water retaining/absorption dam comprises an air bag (1) made of waterproof materials, an interlayer (3), a strap-shaped matter (8) filled with self-prepared viscous absorbent resins (11), and strap-shaped matters (9) and (10) filled with super absorbent resins and fibers; in the process of fire accident handling, the air bag (1) can be unfolded quickly along an area polluted by the fire fighting wastewater in the mode of air inflation or filler filling so as to intercept the fire fighting wastewater caused in an accident and improve the depth of the accumulated water, thereby facilitating pumping out the intercepted wastewater by utilizing a pump. By utilizing the method provided by the invention, field fixation and collection can be effectively carried out on the fire fighting wastewater containing complex organic toxicants, and the wastewater is prevented from seeping into the ground to pollute the water body; and the water retaining/absorption dam designed in a rolled mode has the advantages of quick paving speed, simple follow-up processing, safety, environmental friendliness and the like, and is convenient for transportation.

Description

technical field [0001] The invention relates to an environmental protection device, in particular to a water retaining and absorbing dam for intercepting fire-fighting waste water. Background technique [0002] Explosion accidents and fire accidents of different scales occur every year in our country, such as explosion and fire accidents in buildings, warehouses, factories, chemical industry areas, forests and other places, which generate a large amount of firefighting wastewater and become an important source of pollution. [0003] In particular, the fire-fighting wastewater in the chemical industry has a large amount of water, mixed with a large amount of various complex organic substances and toxic substances, and the composition is complex. If the control is not good, it will enter the urban water supply and drainage system, rivers, rivers, lakes, seas and groundwater systems, causing water environmental pollution. Pollution, the present invention is mainly used for on-s...

Claims

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Application Information

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IPC IPC(8): E02B7/00C08F251/00
Inventor 周迟骏卢潮陵
Owner NANJING UNIV OF TECH
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