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

Method for treating antimony-polluted river water

A water treatment and river channel technology, applied in water/sewage treatment, polluted waterways/lakes/ponds/rivers treatment, water/sludge/sewage treatment, etc., can solve cumbersome processing steps, short processing time, and high processing speed Slow and other problems, achieve high antimony removal efficiency, short processing time, and reduce the effect of processing limit

Inactive Publication Date: 2020-07-03
江苏南大华兴环保科技股份公司
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problems of slow processing speed, cumbersome processing steps and low efficiency in the treatment of antimony-polluted emergency rivers, the method for treating antimony-contaminated river water of the present invention uses the first method to isolate the polluted river and build a reactor beside the river. A lift pump leads the water body into the reactor, and the pollutant removal process is carried out in the reactor. At the same time, a water body return system is set up according to whether the total antimony content exceeds the standard, and a flow treatment is formed through the opening and closing of the first lift pump and the second lift pump. system, the processing time is shorter, the mixing of agents and pollutants is more uniform, and the processing efficiency is effectively improved

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
  • Method for treating antimony-polluted river water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Set up a retaining dam at the boundary of the polluted river, and build a reactor 3 10m beside the polluted river. The overall size of the reactor 3 is 5m*5m*5m, and the effective volume is 112.5m 3 ,Such as figure 1 As shown, the reactor 3 includes an aeration device 7, an online detector 6 and a decanter 8, and the aeration device 7 is arranged at the bottom of the reactor 3 to promote the thorough mixing of the antimony removal agent and the water body; The on-line detector 6 is located at the end of the reactor 3 for on-line monitoring of the total antimony content, and the decanter 8 is used to filter the precipitate produced in the antimony removal process, and the produced precipitate is transported to the sludge drying Plant 4. The first lift pump 1 for introducing the polluted water body into the reactor 3 is arranged beside the river course, and the second lift pump 5 and the dosing pump 5 for pumping back the water body in the reactor 3 to the polluted area ...

Embodiment 2

[0056] Set up a retaining dam at the boundary of the polluted river, and build a reactor 3 at 10m beside the polluted river. The overall size of the reactor 3 is 5m*5m*5m, and the effective volume is 112.5m 3 , The structure of the reactor 3 is the same as in Example 1.

[0057] The polluted river water is introduced into the reactor 3 through the first lifting pump 1 and the water volume is controlled. At the same time, the dosing device 2 is turned on to transport the compound antimony removal agent. The compound antimony removal agent uses ferric chloride, sodium hydroxide, hydroxide It is prepared by mixing calcium and water. The mass ratio of ferric chloride, sodium hydroxide, calcium hydroxide and water in the compound antimony removal agent is 8:4:2:110, and the dosage keeps the mass ratio of iron and antimony at 5000:1, that is, 22kg compound agent / t polluted water body;

[0058] The aeration device 7 is turned on, under the action of aeration and stirring, the medica...

Embodiment 3

[0062] Set up a retaining dam at the boundary of the polluted river, and build a reactor 3 at 10m beside the polluted river. The overall size of the reactor 3 is 5m*5m*5m, and the effective volume is 112.5m 3 , The structure of the reactor 3 is the same as in Example 1.

[0063] The polluted river water is introduced into the reactor 3 through the first lifting pump 1 and the water volume is controlled. At the same time, the dosing device 2 is turned on to transport the compound antimony removal agent. The compound antimony removal agent uses ferric chloride, sodium hydroxide, hydroxide It is prepared by mixing calcium and water. The mass ratio of ferric chloride, sodium hydroxide, calcium hydroxide and water in the compound antimony removal agent is 8:4:2:120, and the dosage keeps the mass ratio of iron and antimony at 6000:1, that is, 29kg compound medicine / t polluted water body;

[0064] The aeration device 7 is turned on, under the action of aeration and stirring, the med...

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 relates to a method for treating antimony-polluted river water, and belongs to the field of water body pollution treatment. The method comprises the following steps: 1) partitioning a polluted river channel, constructing a reactor, and arranging a first lifting pump and a second lifting pump; 2) introducing the polluted water into a reactor through the first lifting pump, adding a medicament for an antimony removal reaction, monitoring the total antimony content, immediately closing the first lifting pump when the total antimony content exceeds a standard, and simultaneously starting the second lifting pump; (3) after the liquid level of the water body in the reactor descends to a certain degree, starting the first lifting pump again, closing the second lifting pump, and repeating the antimony removal reaction by adding the medicament; and 4) repeating the treatment processes in steps 2)-3) until the water body treatment is qualified, and discharging. The method has the advantages of simple process and low cost, can quickly and efficiently remove antimony ions, and can be widely applied to emergency treatment of antimony-polluted riverways.

Description

technical field [0001] The invention discloses a method for treating river course water polluted by antimony, and belongs to the technical field of water environment treatment. Background technique [0002] Antimony is an important industrial resource, but it is also a potentially toxic and carcinogenic element. Excessive antimony can affect human health and endanger the environment. The State Environmental Protection Administration issued the "Surface Water" environmental quality standard, which clearly stipulates that the concentration of antimony in drinking water source water should be lower than 5 μg / L. In recent years, due to the rapid development of industry, sudden water pollution incidents have occurred frequently. For example, at the end of November 2015, a tailings leakage incident occurred in an antimony industry limited liability company, which caused the concentration of antimony in the water body of more than 300 kilometers downstream to exceed the standard. ...

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): C02F1/56C02F1/52C02F101/20
CPCC02F1/56C02F1/5236C02F2101/20C02F2103/007
Inventor 刘君君赵选英杨峰唐为清程夫苓杨存满戴建军
Owner 江苏南大华兴环保科技股份公司
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