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
View PDF7 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At this stage, the production cost of activated carbon materials is relatively high

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • 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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A process and method for preparing activated carbon by hydrothermal co-carbonization of Enteromorpha and municipal sludge, which is prepared by the following method: using Enteromorpha and municipal sludge as raw materials, after pretreatment, acidification and hydrothermal carbonization, solid-liquid separation and drying Crushed, and then through the physical activation method to obtain activated carbon particles.

[0035] A kind of activated carbon process and method in the above-mentioned present embodiment, comprises the following steps:

[0036] (1) Municipal sludge has been pretreated: the sludge from the municipal sewage plant is treated to obtain sludge with a water content of 80%;

[0037] (2) The sludge in the above steps is acidified by adding acetic acid solution to obtain acidified sludge with pH=6, which is prepared for feeding into the reactor;

[0038] (3) Collect Enteromorpha, remove impurities such as gravel, grass, branches and other impurities in E...

Embodiment 2

[0045] A process and method for preparing activated carbon by hydrothermal co-carbonization of enteromorpha and municipal sludge, comprising the following steps:

[0046] (1) Municipal sludge has been pretreated: as a further improvement to the above technical solution, the sludge from the municipal sewage plant is treated to obtain sludge with a water content of 85%;

[0047] (2) The sludge in the above steps is acidified by adding acetic acid solution to obtain acidified sludge with pH = 1, which is prepared for feeding into the reactor;

[0048] (3) Collect Enteromorpha, remove impurities such as gravel, grass, branches and other impurities in Enteromorpha to obtain clean Enteromorpha;

[0049] (4) Hydrothermal carbonization treatment:

[0050] Put the enteromorpha and acidified sludge obtained in the above steps into the hydrothermal carbonization reaction kettle, feed nitrogen until the air in the reaction kettle is exhausted, continue to feed nitrogen until the pressure...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Specific surface areaaaaaaaaaaa
Specific surface areaaaaaaaaaaa
Login to view more

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap