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

Medicament and method for processing wastewater of wet desulfurization

A technology of wet desulfurization and treatment method, which is applied in gaseous effluent wastewater treatment, water/sewage treatment, neutralized water/sewage treatment, etc. Deal with problems such as difficulty, and achieve the effect of facilitating complete and harmless treatment

Inactive Publication Date: 2020-02-18
YANGXIN PENGFU MINING CO LTD
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The waste heat drying method of flue gas has the problem that the spray drying system is prone to fouling and clogging, and the system cannot run stably for a long time, and the soluble salts in the solid matter after drying are solid hazardous waste, and the subsequent treatment is difficult

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The present invention proposes a treatment agent for wet desulfurization wastewater, comprising the following components: 25 mg / L of lime milk solution with a concentration of 5%, 40 mg / L of organic sulfide with a concentration of 15%, and 35 mg / L of ferric chloride with a concentration of 40%. , 9mg / L of PAM with a concentration of 0.05% and 2mg / L of hydrochloric acid with a concentration of 3%;

[0024] A treatment method for wet desulfurization wastewater, comprising the following steps:

[0025] S1: When the desulfurization wastewater enters the neutralization tank, add a certain amount of lime milk solution to increase the pH value of the wastewater to above 9.0, so that most of the heavy metal ions will form insoluble hydroxide precipitates in the alkaline environment.

[0026] S2: After adding lime milk to the sedimentation desulfurization wastewater of heavy metal ion compounds, when the pH value reaches 9.0-9.5, most of the heavy metal ions can form insoluble h...

Embodiment 2

[0035] The invention proposes a treatment agent for wet desulfurization wastewater, comprising the following components: 28 mg / L of milk of lime solution with a concentration of 5%, 50 mg / L of organic sulfide with a concentration of 15%, and 40 mg / L of ferric chloride with a concentration of 40% , 9.5mg / L of PAM with a concentration of 0.05% and 2.5mg / L of hydrochloric acid with a concentration of 3%.

[0036] A treatment method for wet desulfurization wastewater, comprising the following steps:

[0037] S1: When the desulfurization wastewater enters the neutralization tank, add a certain amount of lime milk solution to increase the pH value of the wastewater to above 9.0, so that most of the heavy metal ions form insoluble hydroxide precipitates in the alkaline environment.

[0038] S2: After adding lime milk to the sedimentation desulfurization wastewater of heavy metal ion compounds, when the pH value reaches 9.0-9.5, most of the heavy metal ions can form insoluble hydroxid...

Embodiment 3

[0047] The present invention proposes a treatment agent for wet desulfurization wastewater, comprising the following components: 30 mg / L of milk of lime solution with a concentration of 5%, 60 mg / L of organic sulfide with a concentration of 15%, and 45 mg / L of ferric chloride with a concentration of 40% 10 mg / L of PAM with a concentration of 0.05% and 3 mg / L of hydrochloric acid with a concentration of 3%.

[0048] A treatment method for wet desulfurization wastewater, comprising the following steps:

[0049] S1: When the desulfurization wastewater enters the neutralization tank, add a certain amount of lime milk solution to increase the pH value of the wastewater to above 9.0, so that most of the heavy metal ions will form insoluble hydroxide precipitates in the alkaline environment.

[0050] S2: After adding lime milk to the sedimentation desulfurization wastewater of heavy metal ion compounds, when the pH value reaches 9.0-9.5, most of the heavy metal ions can form insoluble ...

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 medicament for processing wastewater of wet desulfurization. The medicament comprises following components: 25 to 30 mg / L of a lime milk solution with a concentration of 5%;40 to 60 mg / L of organic sulfide with a concentration of 15%; 35 to 45 mg / L of chlorinated iron sulfate with a concentration of 40%; 9 to 10 mg / L of PAM with a concentration of 0.05%; and 2 to 3 mg / Lof hydrochloric acid with a concentration of 3%. The medicament is suitable for processing corrosive wastewater containing chlorine ions. At first, a lime milk solution is introduced into wastewater containing chlorine ions to remove heavy metals and a few of chlorine ions from the wastewater; then through chemical reactions, residual metal ions in the wastewater are removed through generated precipitates, finally, a chlorine removal is added to remove chlorine ions, chlorine ions in wastewater are completely removed, and subsequent wastewater harmless disposal becomes easier.

Description

technical field [0001] The invention relates to the technical field of tea tree planting, in particular to a treatment agent and a treatment method for wet desulfurization wastewater. Background technique [0002] The impurities contained in desulfurization wastewater mainly include suspended solids, supersaturated sulfite, sulfate and heavy metals, many of which are the first type of pollutants that are strictly controlled in the national environmental protection standards, with high salt content, high heavy metal content, Corrosiveness, low chroma, high hardness, etc., as well as particularity, complexity, and strong corrosiveness, make it extremely difficult to process and recycle. At present, although domestic and foreign enterprises have carried out some treatment on desulfurization wastewater, they mainly use chemical precipitation method for treatment, and it is difficult to realize reuse after treatment. If the treated wastewater is discharged directly, it will not ...

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): C02F9/04C02F1/52C02F1/54C02F1/56C02F1/66C02F101/12C02F101/20C02F103/18
CPCC02F1/5236C02F1/5263C02F1/54C02F1/56C02F1/66C02F9/00C02F2101/12C02F2101/20C02F2103/18
Inventor 刘索何占国吴永明柯鹏霍成立刘超刘金海
Owner YANGXIN PENGFU MINING CO LTD
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