Unlock instant, AI-driven research and patent intelligence for your innovation.

A Design Method of Bed Electrode Reactor for Wastewater Treatment

A technology for wastewater treatment and design methods, applied in water/sewage treatment equipment, water/sewage treatment, chemical instruments and methods, etc., can solve the unproposed engineering design methods for reactor design, current efficiency and energy consumption prediction, and difficult industrialization Problems such as application, inability to accurately design industrial wastewater treatment structures or equipment

Active Publication Date: 2020-05-05
CHINA UNIV OF MINING & TECH
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Someone has applied for invention patents named "Three-dimensional Electrode Reactor and Its Application to Treat Organic Wastewater" (Application No. 02114740.X) and "A Three-Dimensional Electrode Reactor for Treating Refractory Organic Wastewater" (Application No. 200610081233.4) , mainly using this kind of equipment to improve the biodegradability of organic wastewater, so as a pretreatment process for biochemical treatment; but these patents did not propose reactor design, current efficiency and energy consumption prediction, and engineering design methods for the area required for the anode, but only A relatively simple idea that cannot be precisely designed for industrial wastewater treatment structures or equipment, and has the disadvantage of being difficult to apply industrially

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
  • A Design Method of Bed Electrode Reactor for Wastewater Treatment
  • A Design Method of Bed Electrode Reactor for Wastewater Treatment
  • A Design Method of Bed Electrode Reactor for Wastewater Treatment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0093] Example 1: The waste water volume of an amino acid production company in Nanjing is 150m 3 / d, raw water chemical oxygen demand (COD) is 4500mg / L on average, and NaCl mass concentration is more than 3%; Carry out engineering design according to technical scheme of the present invention, adopt respectively IrO 2 / Ta 2 o 5 / Ti and stainless steel as the anode and cathode, when the COD removal rate is 90%, the design reaction time is 1.5h, and the required area of ​​the anode is 42m 2 , the direct energy consumption is 6.8kW·h / m 3 . The predicted values ​​of reaction time, anode area and energy consumption are basically consistent with the experimental values.

Embodiment 2

[0094] Embodiment 2: Salt content (NaCl and NaCl and Na 2 SO 4 ) mass concentration is above 5%, and the pollutants are biologically toxic; the flow rate is 50m 3 / d, the average COD is 5000mg / L. Ti material and SnO 2 / Sb 2 o 3 / Mn / Ti is used as cathode and anode respectively, and the designed reaction time is 2.5h and the anode area is 7m 2 The engineering experiments conducted under the condition of the water show that the treated water COD is 220mg / L, and the energy consumption is 13.8kW·h / m 3 It is completely consistent with the theoretical prediction value carried out by adopting the technical scheme of the present invention.

Embodiment 3

[0095] Example 3: The production wastewater of a phenolic resin production enterprise in Hebei is still as high as 10000mg / L or more after phenolic polycondensation treatment, the pH value is 1.0, and the salinity mass concentration is above 5%, but the water volume is small, only 12m 3 / d, the design result obtained by the technical solution of the present invention is: reaction time 4.5h, anode area 22m 2 , treatment energy consumption 21.9kW·h / m 3 ; Effluent COD720mg / L; through this design, the proportion is reduced to 1m 3 / d scales simultaneously with IrO 2 / Ta 2 o 5 / Ti and stainless steel are used as anode and cathode, and the energy consumption and water effluent effect are close to the level predicted by the theory of the present invention.

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 bed electrode reactor design method for wastewater treatment. According to the bed electrode reactor design method, concentration distribution prediction modes of pollutants at different points of a bed layer under different operation current densities are established according to an electrochemical mass transfer idea and with the combination of material balance, on the basis, prediction modes of reaction time, energy consumption and electrode areas of a set pollutant removal rate are acquired through expansion. On the basis of the bed electrode reactor design method disclosed by the invention, precise estimation of capital investment and treatment cost of a wastewater removal rate can be set, self-controlled operation of a bed electrode reactor for wastewater treatment can be achieved, and large-scale application of an electrochemical water treatment technique in the field of wastewater treatment is achieved.

Description

technical field [0001] The invention relates to a bed electrode reactor design method for wastewater treatment, in particular to a bed electrode reactor design method for high-salt, refractory, and high-concentration organic wastewater treatment, and belongs to the technical field of bed electrode reactor design. Background technique [0002] Since the electrochemical reaction uses the electrode as a carrier, it is necessary to expand the electrode area in a limited space, so fillers can be filled between the plates of the electrochemical reactor in order to repolarize the filler particles into anodes and cathodes, so that the entire electrode Electrochemical reactions can occur in any three-dimensional space, enhancing wastewater treatment efficiency and effectively reducing energy consumption. Someone has applied for invention patents named "Three-dimensional Electrode Reactor and Its Application to Treat Organic Wastewater" (Application No. 02114740.X) and "A Three-Dimens...

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): C02F1/461C02F101/30
CPCC02F1/46104C02F2101/30C02F2201/4614
Inventor 王立章孔颖
Owner CHINA UNIV OF MINING & TECH