Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Coagulation-anaerobic hydrolysis-aerobic synergistic treatment cutting fluid wastewater device and method

An anaerobic hydrolysis and synergistic treatment technology, applied in aerobic process treatment, anaerobic digestion treatment, biological treatment equipment, etc., can solve the problems of slow growth and reproduction of anaerobic bacteria, collapse of anaerobic system, sensitivity to toxic substances, etc. Achieve the effect of improving biodegradability, reducing pollutant concentration, and low price

Inactive Publication Date: 2017-05-31
TIANJIN CHENGJIAN UNIV
View PDF2 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the slow growth and reproduction of anaerobic bacteria, which are sensitive to toxic substances and have strict requirements on the living environment, the anaerobic biological treatment process has high requirements for operation management and strict control of operating conditions, otherwise it is easy to cause anaerobic system collapse

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
  • Coagulation-anaerobic hydrolysis-aerobic synergistic treatment cutting fluid wastewater device and method
  • Coagulation-anaerobic hydrolysis-aerobic synergistic treatment cutting fluid wastewater device and method
  • Coagulation-anaerobic hydrolysis-aerobic synergistic treatment cutting fluid wastewater device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The cutting fluid wastewater discharged from a mechanical processing plant is operated through the method and parameters of the present invention, and after wastewater treatment, COD and BOD 5 , petroleum, suspended solids and pH all meet the requirements of the C-level discharge standard in the "Water Quality Standards for Discharge of Sewage into Urban Sewers (GB / T31962-2015)". See columns 1-5 and column 7 in Table 1 for details.

[0042] In order to verify the synergistic degradation effect of glucose on refractory organic matter in cutting fluid wastewater, the method of the present invention is also adopted to this cutting fluid wastewater, only glucose is not added in the aerobic reaction tank, and the operating parameters of other units are the same as listed in the present invention If they are the same, the effluent water quality of the third sedimentation tank is shown in column 6 in Table 1.

[0043] Comparing the data in columns 5 and 6 in Table 1, it can b...

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

No PUM Login to View More

Abstract

The invention discloses a coagulation-anaerobic hydrolysis-aerobic synergistic treatment cutting fluid wastewater device and method. The device comprises a coagulating basin, a first sedimentation basin, an anaerobic hydrolysis tank, a second sedimentation basin, an aerobic reaction tank and a third sedimentation basin, wherein aluminum polychloride and polyacrylamide are added into the coagulating basin; alkali is added into the anaerobic hydrolysis tank, so that the pH value of a mixed solution in the hydrolysis tank is maintained in a proper range; and glucose is added into the aerobic reaction tank to achieve synergistic degradation of partial refractory organics. The method disclosed by the invention is simple, feasible and convenient to operate and manage, so that the removal rate of COD (chemical oxygen demand) and petroleum in cutting fluid wastewater can reach 99% or higher, and the COD, BOD5, petroleum, suspended solid content and pH value of the system effluent meet the requirements of C-level emission standards in Wastewater Quality Standards for Discharge to Municipal Sewers (GB / T31962-2015).

Description

technical field [0001] The invention belongs to the technical field of sewage treatment in environmental engineering, and relates to a device and method for coagulation-anaerobic hydrolysis-aerobic cooperative treatment of cutting fluid waste water. Background technique [0002] Cutting fluid is a processing fluid used for cooling and lubricating during metal processing. It has various types and complex components. The common characteristics of cutting fluid wastewater are large oil content and strong stability, high content of organic matter, and poor biodegradability (that is, difficult to biodegrade). Commonly used treatment methods for cutting fluid wastewater include physical and chemical treatment, advanced oxidation, and biochemical methods. [0003] (1) Physicochemical method [0004] When treating cutting fluid wastewater, the physical and chemical treatment methods include adsorption method, membrane separation method, air flotation method, acid precipitation met...

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 Applications(China)
IPC IPC(8): C02F9/14C02F1/00C02F1/52C02F3/02C02F3/28C02F101/30C02F101/32C02F103/16
CPCC02F9/00C02F2001/007C02F2103/16C02F2101/30C02F2101/32C02F2203/004C02F2209/06C02F2209/08C02F2209/10C02F2301/043C02F2301/08C02F3/02C02F1/52C02F3/28Y02W10/10
Inventor 于静洁王少坡尹季璇陈兆波王轼金付鑫白志冬孙力平
Owner TIANJIN CHENGJIAN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com