Advanced treatment method for urban middle water as industrial recirculated cooling water

A technology of circulating cooling water and urban reclaimed water, which is applied in the directions of water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc. It is difficult to guarantee the effluent water quality of the clarification tank, and the backwashing effect of the square filter is not good, etc., to achieve stable and reliable effluent water quality, solve the large fluctuations in effluent water quality, and ensure low turbidity

Inactive Publication Date: 2004-09-01
胡笳
View PDF0 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This mud discharge method is difficult to ensure the normal operation of the clarifier, because the amount of sludge in the clarifier changes with the water volume and water quality, and the timing mud discharge method cannot accurately grasp the mud discharge time and mud discharge, so that the clarifier The effluent water quality of the pool is difficult to guarantee
[0017] The backwashing effect of the square filter adopted in the prior art is not good
Operation practice has proved that when the square filter is backwashed, the effect of backwashing in the four corners is not good, which will easily lead to fouling of the filter material and increase the turbidity of the effluent

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
  • Advanced treatment method for urban middle water as industrial recirculated cooling water
  • Advanced treatment method for urban middle water as industrial recirculated cooling water
  • Advanced treatment method for urban middle water as industrial recirculated cooling water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The installed capacity of the power plant is designed to be 2×600MW condensing units, and urban reclaimed water is used as circulating water supplementary water. The indicators of water quality and replenishment volume are as follows:

[0041] Temporary hardness: 8mmol / L

[0042] SS (suspended solids) 20mg / L

[0043] BOD 5 20mg / L

[0044] COD60mg / L

[0045] NH 3 -N 8mg / L

[0046] Total amount of circulating water: Q=130000m 3 / h

[0047] The concentration ratio is calculated by 5 times:

[0048] Sewage volume: 340m 3 / h

[0049] Wind loss: 130m 3 / h

[0050] Evaporation loss: 1886m 3 / h

[0051] Total supplementary water volume: 2356m 3 / h

[0052] Using the urban reclaimed water adopted in the present invention as an advanced treatment method for industrial circulating cooling water, the reclaimed water advanced treatment system is designed to normally handle 2500m of water 3 / h, the maximum water treatment capacity is 3000m 3 / h,...

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 deep processing method of urban recycled water by using it as industrial cycling cooling water comprising the steps of, the urban recycled water being collected and entering the recycled water pool, then entering pressure type mixer, entering into clarification tank, liming by wet method for softening, condensation, settlement and automatic de-sludging, the output water flowing into the circular double chamber filter, then entering clean water tank through pressure type mixer, the clean water being pumped to the cycling water pump discharge pressure tube after the compensator to be used for re-circulated cooling water system.

Description

(1) Technical field [0001] The invention relates to a water treatment method, in particular to an advanced treatment method for urban water used as industrial circulating cooling water. It is especially suitable for supplementary water treatment of industrial circulating cooling water in electric power, petrochemical, metallurgy and other industrial sectors. (2) Background technology [0002] my country's research on the reuse of drainage from urban sewage treatment plants was included in the national scientific research projects as early as 1958. In the 1960s, the research on sewage irrigation reached a certain level. Water cities have successively carried out experimental research on sewage recycling for industrial and civil use, and have achieved certain results, but there are still few successful applications in industrial cooling water. Only a few power plants use urban reclaimed water advanced treatment as cooling water for power plants. of supplemental water. [0003]...

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): C02F9/02C02F9/04
Inventor 胡笳王小刚赵培峰
Owner 胡笳
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