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

Dynamic investigating method for performance of reverse osmosis antisludging agent

A technology for dynamic testing and antiscalants, applied in the direction of permeability/surface area analysis, measuring devices, instruments, etc., can solve the problem of inability to simulate continuous concentration, cannot evaluate the limit scale inhibition ability of antiscalants, and is not suitable for evaluating antiscalants, etc. problem, achieve the effect of saving manpower and material resources and shortening time

Inactive Publication Date: 2007-07-18
浙江凯锐环保股份有限公司
View PDF3 Cites 20 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the one-pass method of feed water needs to consume a large amount of chemicals, and the full circulation method cannot evaluate the limit scale inhibition ability of the scale inhibitor when the system recovery rate increases, and the partial circulation method is not suitable for evaluating CaCO 3 For scale inhibitors such as low solubility salts, the batch circulation method cannot simulate the real state of continuous concentration of the solution concentration in the reverse osmosis system

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
  • Dynamic investigating method for performance of reverse osmosis antisludging agent
  • Dynamic investigating method for performance of reverse osmosis antisludging agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Two valves are installed at the permeate port of the reverse osmosis membrane: a return valve and a discharge valve, as shown in Figure 1, so that part of the permeate flows back to the original water tank through the return valve for circulation, and the other part is discharged through the discharge valve.

[0025] Install a regulating valve, a flow meter and a circulation reflux heat exchanger at the reverse osmosis membrane concentrate port, and make all the concentrate flow back to the raw water tank for circulation.

[0026] Install a bypass and bypass valve after the high-pressure pump to adjust flow and pressure. Recirculating heat exchanger and bypass heat exchanger are used to keep the raw water tank water temperature constant during operation

[0027] Weigh 61.47gCaCl 2 , 43.3g NaHCO 3 , 10.58 g NaNO 3 , 5.05gMgSO 4 Prepare a 106L solution in the original water tank, and adjust the pH of the solution to 7.0 with HCl. The LSI index (Langelier Saturation In...

Embodiment 2

[0034] Two valves are installed at the permeate port of the reverse osmosis membrane: a return valve and a discharge valve, as shown in Figure 1, so that part of the permeate flows back to the original water tank through the return valve for circulation, and the other part is discharged through the discharge valve.

[0035] Install a regulating valve, a flow meter and a circulation reflux heat exchanger at the reverse osmosis membrane concentrate port, and make all the concentrate flow back to the raw water tank for circulation.

[0036] Install a bypass and bypass valve after the high-pressure pump to adjust flow and pressure. Recirculating heat exchanger and bypass heat exchanger are used to keep the raw water tank water temperature constant during operation

[0037] Weigh 61.47gCaCl 2 , 43.3g NaHCO 3 , 10.58 g NaNO 3 , 5.05gMgSO 4 Prepare a 106L solution in the original water tank, and adjust the pH of the solution to 7.0 with HCl. The LSI index of the solution is 0.42,...

Embodiment 3

[0044] Two valves are installed at the permeate port of the reverse osmosis membrane: a return valve and a discharge valve, as shown in Figure 1, so that part of the permeate flows back to the original water tank through the return valve for circulation, and the other part is discharged through the discharge valve.

[0045] Install a regulating valve, a flow meter and a circulation reflux heat exchanger at the reverse osmosis membrane concentrate port, and make all the concentrate flow back to the raw water tank for circulation.

[0046] Install a bypass and bypass valve after the high-pressure pump to adjust flow and pressure. Recirculating heat exchanger and bypass heat exchanger are used to keep the raw water tank water temperature constant during operation

[0047] Weigh 61.47gCaCl 2 , 43.3g NaHCO 3 , 10.58 g NaNO 3 , 5.05gMgSO 4 Prepare a 106L solution in the original water tank, and adjust the pH of the solution to 7.0 with HCl. The LSI index of the solution is 0.42,...

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

A method for dynamically investigating property of antisludging agent used at reverse osmosis includes increasing concentration of solution in reverse osmosis original water tank continuously; recording water inlet operation pressure, pressure-drop of solution at flowing through membrane and solution temperature; monitoring solution ion concentration, solution pH value, turbidity and osmotic fluid water-output in flowing passage of time; enabling to use obtained data to quickly test out antisludging effect of said antisludging agent.

Description

technical field [0001] The invention relates to a dynamic test method for the performance of a reverse osmosis scale inhibitor, which uses a reverse osmosis device to test and evaluate the performance of the reverse osmosis scale inhibitor. The reverse osmosis permeate is partially refluxed for circulation and partially discharged to quickly and effectively obtain the ultimate scale inhibition ability of the scale inhibitor. The method of the invention provides a reliable basis for the development of new high-efficiency scale inhibitors and the field test of the scale inhibitors, and belongs to the technical field of water treatment in environmental engineering. Background technique [0002] Reverse osmosis (RO) desalination technology is the most economical desalination technology for brackish water desalination and seawater desalination. It is also widely used in various fields such as pure water preparation, wastewater treatment, drinking water, beverage and chemical prod...

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): G01N33/00G01N15/08G01N13/04
Inventor 杨庆峰薛珂
Owner 浙江凯锐环保股份有限公司
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