Acidic carboxymethylcellulose condensate treatment method

A technology of carboxymethyl cellulose and treatment methods, applied in chemical instruments and methods, wastewater treatment in processing, multi-stage water/sewage treatment, etc., can solve problems such as engineering application reports that have not been seen

Active Publication Date: 2015-05-20
CHANGZHOU UNIV
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Domestic research reports on the treatment of CMC production waste liquid include Pan Luting, Yang Jun, etc. using UASB, MBR, micro-electrolysis-UASB-biological contact oxidation combined process, but no actual engineering application report

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
  • Acidic carboxymethylcellulose condensate treatment method
  • Acidic carboxymethylcellulose condensate treatment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] The acidic CMC condensate treatment process of the present invention first adopts UBF reactor anaerobic treatment, and then utilizes BAF aerobic treatment, and its process flow chart is as attached figure 1 shown. After the acidic CMC condensate enters the adjustment sedimentation tank 1 for homogenization and precipitation, it flows into the neutralization tank 2 by gravity, and industrial Na with a mass fraction of 15% is added to the tank. 2 CO 3 Alkaline solution, so that the pH value of the wastewater in the neutralization pool is stable between 6.5-7.5, and at the same time, a 10% agricultural compound fertilizer solution by mass is added dropwise. The wastewater stirred by the electric submersible mixer at the bottom of the neutralization tank is injected into the bottom of the UBF reactor 4 by the corrosion-resistant chemical pump 3, and the wastewater is anaerobically purified by the biofilm on the carrier in the reactor and flows into the BAF reactor 5 at the...

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
diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
densityaaaaaaaaaa
Login to view more

Abstract

The invention discloses an acidic carboxymethylcellulose condensate treatment method. The acidic CMC condensate firstly enters an adjusting sedimentation tank to adjust the water amount and water quality, and then enters a neutralizing tank. A Na2CO3 solution is added into the neutralizing tank to allow the pH value of waste water to be stabilized between 6.5 to 7.5. The waste water is purified through a UBF reactor in an anaerobic manner and flows into a BAF reactor, and is purified through an aerobic biofilm to discharge or reuse. The UBF reactor is filled with polyurethane-based porous rotating spherical filler and the BAF reactor is filled with clinoptilolites and bio-ceramics as fillers, and the UBF reactor and the BAF reactor respectively culture and acclimate anaerobic biofilms and aerobic biofilms, metabolic effects, filtration effects and multi-stage biological predator effects of heterotrophic bacteria on the biofilms are utilized, and biological purification of the CMC condensate is realized.

Description

technical field [0001] The invention belongs to the field of waste water treatment, and in particular relates to a treatment method for acidic carboxymethyl cellulose condensate. Background technique [0002] Carboxyl Methyl Cellulose (CMC for short), also known as sodium carboxymethyl cellulose, is a substance with an ether structure produced by chemical modification of natural polymer material cellulose. Monosodium glutamate". Widely used in food, medicine, toothpaste, textile and other industries, with large market sales and good benefits. However, at present, the domestic widely used process of producing sodium carboxymethyl cellulose with refined cotton linters, chloroacetic acid, ethanol, etc. as raw materials generally has the problems of large consumption of raw materials and low utilization rate (especially the utilization of etherifying agent chloroacetic acid rate is very low, only 50-60% is utilized), unreacted raw materials also enter the production wastewater...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14C02F103/28
Inventor 张文艺刘芳冯国勇李文昱吴凌云
Owner CHANGZHOU UNIV
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