Process and method for preparing activated carbon by hydrothermal co-carbonization of enteromorpha prolifera and municipal sludge

A technology for preparing activated carbon and municipal sludge, applied in chemical instruments and methods, carbon compounds, sewage/sludge fertilizers, etc., can solve the problem of high production cost of activated carbon materials, achieve low cost, simple process, and easy control of conditions Effect

Pending Publication Date: 2021-03-12
QINGDAO TECHNOLOGICAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] At this stage, the production cost of

Method used

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  • Process and method for preparing activated carbon by hydrothermal co-carbonization of enteromorpha prolifera and municipal sludge
  • Process and method for preparing activated carbon by hydrothermal co-carbonization of enteromorpha prolifera and municipal sludge
  • Process and method for preparing activated carbon by hydrothermal co-carbonization of enteromorpha prolifera and municipal sludge

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Example Embodiment

[0033] Example 1

[0034] A carbon process and method for carbonation with moss and municipal sludge water and heat, produced by the following methods: Sococene is separated by sputum, acidification and hydrothermal carbonization, and dry, dry Broken, and activated carbon particles were prepared by physical activation.

[0035] An activated carbon process and method in the above embodiment, including the following steps:

[0036] (1) Municipal sludge is pretreated: the sludge treatment of municipal sewage plants is given a sludge of 80%;

[0037] (2) The sludge of the sludge of the above steps is acidified to acidify the acidified sludge of pH = 6, which is prepared for the delivery of the reactor;

[0038] (3) Collecting the moss, remove the gravel, grass, branches in the squash, grass, branches and other impurities to get cleanliness;

[0039] (4) Hydrothermal carbonization treatment:

[0040] The acidified feedstock obtained by the above step is transferred to a high temperatur...

Example Embodiment

[0044] Example 2

[0045] Moss and municipal sludge water hot co-carbonization processed activated carbon processes and methods, including the following steps:

[0046] (1) Municipal sludge is pretreated: as a further improvement to the above technical solutions, the sludge treatment of municipal sewage plants is 85% sludge;

[0047] (2) The sludge of the sludge of the above steps is acidified to acidify the acidified sludge of pH = 1, and prepare for the delivery of the reactant;

[0048] (3) Collecting the moss, remove the gravel, grass, branches in the squash, grass, branches and other impurities to get cleanliness;

[0049] (4) Hydrothermal carbonization treatment:

[0050] Moss and acidified sludge obtained in the above steps were transferred to a hydrochry carbonized reaction kettle, and the air into the row of nitrogen was transferred into nitrogen until the gas pressure reached 10 MPa in the reaction kettle; then under nitrogen conditions The temperature of the reaction ke...

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Abstract

The invention provides a process and method for preparing activated carbon by hydrothermal co-carbonization of enteromorpha prolifera and municipal sludge. The method comprises the following steps: byusing enteromorpha prolifera and municipal sludge as raw materials, carrying out pretreatment, acidification and hydrothermal carbonization treatment, carrying out solid-liquid separation, drying, crushing, and carrying out physical activation to obtain activated carbon particles. According to the invention, comprehensive utilization of biomass and harmless treatment of sludge are realized, the preparation process is simple and feasible, the cost is low, and the obtained activated carbon has good practical value.

Description

technical field [0001] The invention belongs to the field of comprehensive utilization of biomass, and in particular relates to a process and method for preparing activated carbon from enteromorpha and municipal sludge. Background technique [0002] With the rapid growth of my country's economy and population, the rapid advancement of urbanization and industrialization, the number of sewage treatment plants is increasing year by year, and the output of sewage sludge will also increase day by day. Municipal sludge is the sediment produced in the process of water treatment in urban sewage treatment plants. It contains a large number of microorganisms, organic matter, rich nitrogen, potassium and other nutrients, as well as excessive heavy metals and pathogenic microorganisms. If the sludge is not handled properly, it will not only pollute the environment, but also cause unnecessary loss of resources. Municipal sludge has a high content of organic matter and is more difficult ...

Claims

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Application Information

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IPC IPC(8): C01B32/324C01B32/336C05G5/20C05F15/00
CPCC01B32/324C01B32/336C05F7/00C05G5/20C05F11/00
Inventor 左宗良刘雪洁王露宁周家秀罗思义张敬奎崔红社
Owner QINGDAO TECHNOLOGICAL UNIVERSITY
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