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Grape residue sludge-based high-efficiency biological carbon and preparation method and application thereof

A technology of grape pomace and biochar, which is applied in the field of solid waste treatment and recycling, can solve the problems of adverse social impact, lower economic value, and no comprehensive utilization, and achieve low cost, simple process, and strong adsorption and decontamination capabilities Effect

Inactive Publication Date: 2018-06-01
WUHAN TEXTILE UNIV
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Problems solved by technology

my country, as one of the big wine-making countries in the world, produces a large amount of grape residue in the wine brewing process. In most cases, domestic production plants treat wine grape residue as fertilizer, feed or even garbage, which not only reduces the their economic value, but also the adverse social impact
[0005] Although a huge amount of urban sludge and wine grape waste is produced in my country every year, there is still no comprehensive utilization of urban sludge and wine grape waste with high economic benefits.

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  • Grape residue sludge-based high-efficiency biological carbon and preparation method and application thereof

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preparation example Construction

[0034] Embodiments of the present invention provide a method for preparing the above-mentioned grape marc sludge-based high-efficiency biochar, such as figure 1 As shown, it includes the following steps:

[0035] S1. Press filter the urban sludge from the urban sewage treatment plant, and dry it at 100-115°C until the moisture content is below 10%, to obtain dried sludge; press filter the grape pomace, and dry it at 100-115°C, that is Dried pomace.

[0036] S2. In parts by weight, mix and grind 0.5-2 parts of dried sludge and 1-4 parts of dried grape pomace, add a chemical activator, and dip for activation for 20-30 hours.

[0037] In this embodiment, the dried sludge and dried grape pomace can be crushed and ground separately, and passed through a 20-mesh stainless steel sieve, or the dried sludge and dried grape pomace can be mixed and then crushed and ground, passed through a 20-mesh stainless steel sieve, and the mixing and grinding The sequence is not limited.

[0038]...

Embodiment 1

[0049] This embodiment provides a kind of high-efficiency biochar based on grape marc sludge, such as figure 1 As shown, it is prepared according to the following preparation method:

[0050] (1) Air-dry the remaining sludge (with a moisture content of about 80%) collected from the tail end of the belt filter press of Tangxun Lake Sewage Treatment Plant in Wuhan City under natural conditions, and put it into a blast drying oven at 105°C to dry until constant Heavy, remove debris such as stones, crush and grind with a crusher, pass through a 20-mesh stainless steel sieve, and perform the same pretreatment on wine grape residue as urban sludge.

[0051] (2) The above-mentioned dry and ground municipal sludge and grape pomace are fully mixed into a mixed raw material in a ratio of 1:2 by weight, and Na 2 CO 3 As an activator, the mass ratio of the activator to the mixed raw material is 0.5:1, and a certain volume of deionized water is added to stir, so that the mixed raw materi...

Embodiment 2

[0057] This embodiment provides a kind of high-efficiency biochar based on grape marc sludge, such as figure 1 As shown, it is prepared according to the following preparation method:

[0058] (1) Air-dry the remaining sludge (with a moisture content of about 80%) collected from the tail end of the belt filter press of Tangxun Lake Sewage Treatment Plant in Wuhan City under natural conditions, and put it into a blast drying oven at 105°C to dry until constant Heavy, remove debris such as stones, crush and grind with a crusher, pass through a 20-mesh stainless steel sieve, and perform the same pretreatment on wine grape residue as urban sludge.

[0059] (2) The above-mentioned dry and ground municipal sludge and grape pomace are fully mixed in a ratio of 1:2 by weight, and the 2 CO 3 As an activator, the mass ratio of the activator to the mixed raw material is 3:1, and a certain volume of deionized water is added to stir, so that the mixed raw material is in full contact with ...

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Abstract

The invention relates to grape residue sludge-based high-efficiency biological carbon and a preparation method and application thereof and relates to the technical field of solid waste treatment and recycling. The grape residue sludge-based high-efficiency biological carbon is prepared from dry sludge and dry grape slag through activation and pyrolysis. The grape residue sludge-based high-efficiency biological carbon has high adsorption and decontamination ability. The preparation method comprises mixing dry sludge and dry grape slag, grinding the mixture, adding a chemical activator into thepowder, carrying out dipping activation for 20-30h, carrying out pyrolysis on the product at 400-700 DEG C in the inert gas atmosphere for 30-120min, adding an acid to immerse the product, washing theproduct through water until pH of 7 and carrying out drying. The preparation method has simple processes and realizes a low cost and recycling of solid wastes. The grape residue sludge-based high-efficiency biological carbon is used for sewage treatment, realizes disposal of wastes from wastes and satisfies the requirements on sustainable development.

Description

technical field [0001] The invention relates to the technical field of solid waste treatment and resource utilization, and in particular to a grape pomace sludge-based high-efficiency biochar and its preparation method and application. Background technique [0002] For a long time, the phenomenon of "heavy water and light mud" has been common in my country's sewage treatment plants from design to operation, which has made my country's sewage treatment develop rapidly, but sludge treatment has stagnated. There is a sharp contradiction between the sudden increase in sludge production and the serious shortage of sludge treatment methods and capabilities, resulting in a huge gap in sludge treatment and disposal. Therefore, it has become an urgent problem to solve such a large amount of sludge to deal with it reasonably. [0003] Municipal sludge is composed of organic matter and inorganic matter, which contains mixed organisms composed of various fungi and protozoa. A large par...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/324C01B32/348C02F1/28
CPCC02F1/283
Inventor 李进平刘大民程应甘金华徐琼伍亮王腾
Owner WUHAN TEXTILE UNIV
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