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Bionic peat coal, artificial wet land plate and preparing method thereof

A technology of artificial wetlands and peat, applied in chemical instruments and methods, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of poor material recovery, white pollution, unbalanced distribution of peat resources, etc. problems, to achieve the effect of reducing the amount of application, strong chelating ability, and rich organic matter content

Active Publication Date: 2008-07-09
上海臻衍生物科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, the distribution of peat resources is very uneven. For this reason, many scientific and technological personnel have developed their own technologies. For example, since 1992, Guangxi Agricultural College has cooperated with Nanning Plastic Factory to use polystyrene foam as a floating bed on the surface of eutrophic rivers. When planting rice, good results can be obtained when the appropriate rice substrate and special coated fertilizer are used, but the materials used cannot be recycled well, and there is a problem of white pollution (Song Xiangpu Wu Weiming. Soilless cultivation of rice water surface. Shandong Science and Technology Press, 2001)

Method used

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  • Bionic peat coal, artificial wet land plate and preparing method thereof

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Effect test

Embodiment 1

[0026] The preparation of embodiment 1 binding agent

[0027] In 100g of PVA and bean gum aqueous solution, add 0.5g of N-methylimidazolium bisulfate [Hmim][HSO 4 ] ionic liquid catalyst, then add 10g urea, 5g butyraldehyde, carry out acetalization reaction, reaction time 3hr, under reaction temperature 95 ℃, seal the hydroxyl group of 98mol% in PVA, bean gum, obtain by binding agent, surface bonding strength ≥0.50MP;

[0028] In the aqueous solution of PVA and bean gum, the content of PVA is 50g / L, and the content of bean gum is 100g / L.

Embodiment 2

[0029] The preparation of embodiment 2 binding agent

[0030] In 100g of PVA and bean gum aqueous solution, add 0.05g of N-methylimidazolium bisulfate [Hmim][HSO 4 ] ionic liquid catalyst, then add 2g urea, 1.0g butyraldehyde, carry out acetalization reaction, reaction time 2.5hr, under the reaction temperature 30 ℃, seal the hydroxyl group of 10mol% in PVA, bean gum, obtain by binding agent, surface Bonding strength ≥ 0.50MP;

[0031] In the aqueous solution of PVA and bean gum, the content of PVA is 30g / L, and the content of bean gum is 50g / L.

Embodiment 3

[0032] The preparation of embodiment 3 water retaining agent

[0033] In the reactor, first add 8 parts by weight of acrylic acid and 1.5 parts by weight of water, then add 6 parts by weight of starch, 0.2 parts by weight of potassium hydroxide, 2.5 parts by weight of potassium humate, 0.2 parts by weight of ammonium persulfate and 0.2 parts by weight of the cross-linking agent N,N-methylenebisacrylamide was continuously reacted at 75°C for 1 hour, grafted and copolymerized, and then dried at 70°C for 2 hours to obtain a gel-like water retaining agent.

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Abstract

The invention provides bionic peat and artificial marsh plates and a method for preparation thereof. The bionic peat is prepared as the following steps: adding plant nodule nitrogenase and uricase or hydrogen peroxidase into biomass waste to produce humifying accelerants as allantoin, allantoic acid and the like, humifying for 4-20 days at the temperature of 15-75 DEC G to obtain the bionic peat, then compressing the bionic peat, binders and water-loss reducer via a molding press, thereby obtaining the bionic peat and artificial marsh plates. The bionic peat of the invention has the advantages of abundant organic content, looseness and porousness, perfect breathing hydraulic permeability, large specific surface area and strong suction-chelation ability, and by application of the bionic peat the invention is capable of reducing consumption and loss amount of fertilizer, easing contaminations of water nitrate, nitrite and high-density metal and mitigating eutrophication caused by accumulation of water nitrogen, phosphorus and the like. And after degrading the bionic peat and 'artificial marsh' plates can further be used for improvement of land and the like by means of biochemistry and the like.

Description

technical field [0001] The invention relates to a preparation method of bionic peat and artificial wet floor materials. Background technique [0002] Peat, also known as peat and peat, is a complex hydrophilic polymer substance with multi-component, multi-fraction, and semi-colloid properties transformed from marsh plant remains, and is also a type of "wetland". [0003] Peat organic matter consists of humic acids and incompletely decomposed plant residues. Peat fiber is rich in content, loose and porous, good air permeability, large specific surface area, strong adsorption-chelation ability, and strong salt balance control ability. It is a rare natural resource. [0004] It can be seen from Table 1 that the difference between peat (herb peat, woody peat) and plant organic matter such as straw and sedge is that there is no protein and more humic acid. [0005] Table 1 Comparison of chemical composition of plants and peat [0006] Plants and Peat Elemental...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F11/02C05G3/00C02F3/32
Inventor 周霞萍王琰靓方海兰裘国寅盛建林樊兴明仲恒昊
Owner 上海臻衍生物科技有限公司
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