Ecological floating bed for remediation of oil-polluted water bodies

A water body remediation, ecological floating bed technology, applied in water pollutants, biological water/sewage treatment, water/sludge/sewage treatment, etc. The wide application of materials can achieve the effect of strong adsorption performance, good visible light activity, enhanced adsorption degradation performance and purification effect.

Active Publication Date: 2017-06-16
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

but since g-C 3 N 4 The based materials are highly dispersed in the solution, and the recyclability and reusability of the catalyst are poor. Traditional separation techniques lead to a large loss of catalytic materials, thus limiting the wide application of such photocatalytic materials in practice.

Method used

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  • Ecological floating bed for remediation of oil-polluted water bodies
  • Ecological floating bed for remediation of oil-polluted water bodies
  • Ecological floating bed for remediation of oil-polluted water bodies

Examples

Experimental program
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Effect test

Embodiment example 1

[0039] An ecological floating bed for remediation of oil-polluted water prepared based on waste materials, comprising: a main frame 1, a PVC casing joint 2, a non-woven fabric 3, a bottom filling material 4, an upper filling material 5, and the Agricultural plants6.

[0040] The main frame is made of 6 casing supports with a length of 0.9m, 2 casing supports with a length of 0.3m, 4 DN15 right-angle two-way joints, and 8 DN15 positive tee joints. The casing supports are made of waste polyurethane foam Plastic loaded with TiO infiltrated with a certain amount of N element 2 The material is prefabricated. refer to Figure 1 to Figure 3 Assembled, the interface is sealed with a small amount of silicone.

[0041] The production process of the main frame is as follows: take 300g of waste polyurethane foam, use a small molecule alkyl glycol as an alcoholysis agent, and react for 2 hours at 200°C to obtain a polyether polyol; 20mL of tetrabutyl titanate Add the ester to 10mL of a...

Embodiment example 2

[0046] The production process of this case refers to the implementation case 1, but there are the following differences: the main frame is assembled by six 0.3m and two 0.1m casing brackets, and the casing bracket production process has the following differences: Take 100g of waste polyurethane foam plastics to obtain polyether polyols; add 6 mL of tetrabutyl titanate to 3 mL of absolute ethanol under vigorous stirring, stir for 30 min, then add dropwise 1.5 mL of concentrated nitric acid, 2 mL of twice distilled water and 25 mL of absolute ethanol Mix the solution to make TiO 2 dry gel. urea and TiO 2 Xerogels were mixed and ground at different mass ratios of 3:1 to prepare N-doped TiO 2 Nanoparticles. 8 g of N-doped TiO 2 Particles, mixed with 80g of diphenylmethylpropane diisocyanate, heated in a water bath at 40°C to form a liquid; mixed 15g of dichloromethane with 80g of polyether polyol, heated in a 60°C water bath and continuously stirred to form a liquid B; Liquid...

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Abstract

The invention discloses an ecological floating bed for repairing oil-polluted water bodies. The main body frame is assembled from a plurality of sleeve brackets, and the joints of the sleeve brackets of the main frame are connected with matching PVC sleeve joints and sealed with silica gel; The pipe support is recycled from waste polyurethane foam loaded with modified TiO by alcoholysis 2 Made of photocatalytic materials, the bottom of the main frame is wrapped with non-woven fabric, and the winding of the non-woven fabric and the main frame is tied with nylon rope; a certain amount of bottom filler and upper filler are evenly laid in two layers in each unit , the crop plants are planted on the top filling material. The rice seedlings on the floating bed can not only fully absorb the excess nitrogen and phosphorus in the water body to promote their own growth, but also the roots can promote the growth of microorganisms at the bottom of the floating bed, and strengthen the water purification effect of the floating bed; modified fly ash, no All woven fabrics have strong adsorption; this floating bed combines the advantages of the three technologies, and strengthens the adsorption and degradation performance and purification effect of oil pollutants.

Description

technical field [0001] The invention relates to an ecological floating bed used for repairing oil-polluted water bodies, and belongs to the technical field of photocatalytic composite materials. Background technique [0002] Semiconductor material-based photocatalysts, as a green economic technology, have attracted extensive attention in the field of environmental governance and restoration for their potential application in the degradation of organic pollutants. However, the large-scale use of semiconductor photocatalytic materials is often limited by two aspects. Firstly, the wide band gap inhibits the absorption and utilization of sunlight by photocatalysts; secondly, the photocatalysts after degrading pollutants are dispersed in the treated solution, which is difficult to separate and recycle. Therefore, the high efficiency, stability, cost, and light use efficiency of materials have become important criteria for selecting semiconductor photocatalytic materials. [000...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/32C08G18/76C08G18/48C08K9/04C08K3/22C08G101/00C02F101/30
Inventor 李轶李杰张文龙叶全梁
Owner HOHAI UNIV
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