Supercharge Your Innovation With Domain-Expert AI Agents!

Recycling utilization method of tea leafs

A technology of tea dregs and extraction water, which is applied in the field of plant extraction and processing, can solve the problems of large amount of extraction agent, serious environmental pollution, and low utilization efficiency, and achieve easy control of operating conditions, short process flow, and reduced energy consumption Effect

Active Publication Date: 2011-05-18
NANJING UNIV OF TECH
View PDF2 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical purpose of the present invention is to overcome the technical problems such as large amount of extraction agent used in the utilization method of tea residue in the prior art, high energy consumption, serious environmental pollution, low utilization efficiency and low utilization degree, and provide a resource of tea residue reuse method

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
  • Recycling utilization method of tea leafs
  • Recycling utilization method of tea leafs

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Prepare the powdered tea residue and water by mechanical crushing at a mass ratio of 1:20, extract at 50°C for 100 minutes, filter the extract with a 10 nm alumina ceramic filter membrane, and control the operating temperature at 10°C , pressure 4×10 5 Pa, the membrane surface velocity is 5 m / s, and the steady flux is maintained at 60 L / (m 2 h), after the retentate is concentrated 80 times, it is put into a plate and frame filter press of 300 mesh filter cloth for pressure filtration, wherein the filter cake is dried by an airflow sprayer to obtain tea powder, and the filter press liquid is returned to the extraction process for recycling, Ceramic membrane filtration permeate liquid does not contain solid particles, using PDMS / alumina ceramic composite membrane for separation, the operating conditions are temperature 20°C, pressure 1300 Pa, and the permeability of aromatic substances is 2.3×10 -3 Kg / m -2 h, the yield of aromatic substances measured by gas chromatog...

Embodiment 2

[0030] Prepare the powdered tea residue and water by mechanical pulverization according to the mass ratio of 1:20, extract at 50°C for 60 minutes, filter the extract with a 20 nm zirconia ceramic membrane, and control the operating conditions at a temperature of 20°C. Pressure 0.5×10 5 Pa, the membrane surface velocity is 3 m / s, and the steady flux is maintained at 80 L / (m 2 h), after the retentate is concentrated 80 times, it is put into a plate and frame filter press of 300 mesh filter cloth for pressure filtration, wherein the filter cake is dried by an airflow sprayer to obtain tea powder, and the filter press liquid is returned to the extraction process for recycling, Ceramic membrane filtration permeate liquid does not contain solid particles, using POMS / zirconia ceramic composite membrane for separation, the operating conditions are temperature 5°C, pressure 60 Pa, and the permeability of aromatic substances is 2.5×10 -5 Kg / m -2 h, the yield of aromatic substances ...

Embodiment 3

[0032] The powdered tea dregs and water made by mechanical crushing were configured according to the mass ratio of 1:20, extracted at 75°C for 75 minutes, and the extract was filtered with a 50 nm titanium oxide ceramic membrane, and the operating conditions were controlled at a temperature of 5°C. Pressure 2.4×10 5 Pa, the membrane surface velocity is 2 m / s, and the steady flux is maintained at 78 L / (m 2 h), after the retentate is concentrated 80 times, it is put into a plate and frame filter press of 300 mesh filter cloth for pressure filtration, wherein the filter cake is dried by an airflow sprayer to obtain tea powder, and the filter press liquid is returned to the extraction process for recycling, Ceramic membrane filtration permeate clear liquid does not contain solid particles, using PEBA / titanium oxide ceramic composite membrane for separation, the operating conditions are temperature 40 ℃, pressure 3500 Pa, the permeability of aromatic substances is 8.9×10 -3 Kg / ...

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
Membrane pore sizeaaaaaaaaaa
Login to View More

Abstract

The invention relates to a utilization method of tea leafs, belonging to a plant extracting and processing method. The technical key points of the method provided by the invention is as follows:: after the tea leafs are leached with water, a leach liquor is introduced into a ceramic membrane separator; the large-particle tea leaf in the leach liquor is stopped and condensed; concentrated solution is filtered by a plate frame, is dried by an airflow type sprayer and is smashed to prepare superfine tea powder; penetrating fluid in a ceramic membrane working procedure is introduced into an organic / inorganic composite membrane separator; the active organic compound of the tea in the penetrating fluid is prepared into tea aromatic material through the organic / inorganic composite membrane; and the plate frame pressure filtrate and the interception liquid of the organic / inorganic composite membrane return to the leaching technology to serve as water for leaching. Aromatic materials in the tea leaf can be separated and purified with the method. The prepared superfine tea powder particles can serve as porous adsorbent, which not only solves the problem of environmental pollution but also greatly improves the economic value of abandoned tea leaf. The whole technology realizes the recycle of water and conforms to the requirements of the recycling economy.

Description

technical field [0001] The present invention relates to a utilization method of tea dregs, in particular to the process of combining ceramic filter membrane and organic / inorganic composite pervaporation membrane to realize extraction of residual organic aromatic substances from tea dregs, utilization of tea powder and realization of water recycling for the production of instant tea powder The resource utilization method of the tea dregs belongs to the field of plant extraction and processing. Background technique [0002] Tea is full of treasures. Tea can clear away heat and detoxify, and has the effect of improving human immunity. Modern biochemical and medical research has proved that in the chemical composition of tea, there are more than 450 kinds of organic compounds and no less than 15 kinds of inorganic mineral nutrients. It can be seen that tea has both nutritional value and pharmacological effects on the human body. It is closely related to people's health. Green...

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): A23F3/06
Inventor 仲兆祥姚忠徐虹
Owner NANJING UNIV OF TECH
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com