Concentrated ammonia rectification apparatus for treating titanium dioxide industrial wastewater

A technology for industrial wastewater and concentrated ammonia, applied in the direction of heating water/sewage treatment, etc., can solve the problems of low conversion efficiency of free ammonia nitrogen, inability to achieve degradation effect, high operating costs, etc., achieve small footprint, low treatment cost, and realize separation effect

Inactive Publication Date: 2015-08-26
JIANGSU XIAHANG ENVIRONMENTAL ENG
View PDF6 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the huge investment cost, complicated maintenance, high operating cost, and secondary pollution to the environment, the above method is rarely used in large-scale industrial sewage treatment projects.
The conventional ammonia nitrogen stripping process is greatl

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
  • Concentrated ammonia rectification apparatus for treating titanium dioxide industrial wastewater
  • Concentrated ammonia rectification apparatus for treating titanium dioxide industrial wastewater

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0024] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0025] like figure 1 and figure 2 As shown, a kind of concentrated ammonia rectification device for treating titanium dioxide industrial wastewater according to the present invention includes a preheater 1 and a stripping deamination tower 2, and the stripping deamination tower 2 includes a tower still 3 , the tower kettle 3 is divided into a rectification section 4, a waste water feed section 5, a separation section 6 and a raffinate separation section 7 from top to bottom, and a water inlet pipe 8 is arranged on the outer side of the tower kettle 3, and The upper part of the water inlet pipe 8 is provided with three water inlets 9, and an ammonia reflux pipe 10 is additionally provided on the outer side of the tower kettle 3, and a through-flow tray 11 is provided inside the tower kettle 3, and in the through-flow type A plate-type gas separation m...

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 present invention relates to a concentrated ammonia rectification apparatus for treating titanium dioxide industrial wastewater. The concentrated ammonia rectification apparatus comprises a pre-heater and a steam stripping deamination tower, wherein the steam stripping deamination tower comprises a tower kettle, the tower kettle is sequentially divided into a rectification section, a wastewater feeding section, a stripping separation section and a residual liquid separation section from top to bottom, turbogrid type trays are arranged in the tower kettle, the turbogrid type tray is provided with a plate type gas separation membrane, the bottom portion of the tower kettle is provided with a wastewater outlet, and a high temperature steam inlet is arranged on the side surface below the outer portion of the tower kettle. The apparatus of the present invention has characteristics of low cost, high ammonia nitrogen conversion efficiency, and no secondary pollution of the treated wastewater.

Description

technical field [0001] The invention relates to a rectification device, in particular to a concentrated ammonia rectification device for treating titanium dioxide industrial wastewater. Background technique [0002] Titanium dioxide (TiO2) is an inorganic pigment or catalyst that is widely used and used in a huge amount. It is a large-tonnage chemical raw material product. As a denitrification catalyst, the production of titanium dioxide is always accompanied by a large number of wastewater treatment problems. Due to the complex composition and many impurities of the wastewater and residue discharged during the production of titanium dioxide, the most important one is acid wastewater, which contains suspended solids, ammonia nitrogen, etc.; it also includes smoke, sulfur dioxide, sulfuric acid mist and solid boiler slag, fly ash, sulfuric acid Ferrous and hydrous gypsum mud, etc. In the production process, in order to achieve rational utilization of resources and discharge ...

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): C02F1/04
Inventor 夏兰徐利民
Owner JIANGSU XIAHANG ENVIRONMENTAL ENG
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