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

A process for the treatment of copper-containing wastewater

A technology for treating process and wastewater, applied in water/sewage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problems of harsh preparation conditions, long preparation time, unfavorable industrialization, etc., and achieve short preparation time , Short processing time, high copper removal rate

Active Publication Date: 2019-03-01
ZHAOQING NEW RONGCHANG IND ENVIRONMENTAL PROTECTION CO LTD
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these two copper ion removers need to be dried and activated at a high temperature of 105°C for 4 hours. The preparation time is long and the preparation conditions are relatively harsh, which is not conducive to industrialization and restricts its promotion.

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
  • A process for the treatment of copper-containing wastewater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1, the treatment process of copper-containing wastewater of the present invention

[0029] S1. Mix 1 kg of polyethyleneimine, 2 kg of 80-mesh sepiolite and 0.1 kg of chloroplatinic acid-isopropanol solution, soak in 6 kg of 2 mol / L sulfuric acid for 16 hours, and then dry and activate at 65 ° C for 2 hours , get activated minerals;

[0030] S2. Put the activated minerals prepared in step S1 into the electroplating wastewater with a pH value of 6 and a copper content of 121.63 mg / L, and stir the wastewater for 30 minutes. After the treatment, let it stand, separate and precipitate, and discharge the water. The copper content in the effluent was 0.11mg / L, and the copper removal rate was 99.91%.

[0031] The weight percent concentration of the chloroplatinic acid-isopropanol solution is 0.001%.

[0032] The added amount of the activated mineral is 0.02‰ of the weight of the copper-containing wastewater.

Embodiment 2

[0033] Embodiment 2, the treatment process of copper-containing wastewater of the present invention

[0034] S1. After mixing 1 kg of polyethyleneimine, 3 kg of 80-mesh montmorillonite and 0.1 kg of chloroplatinic acid-isopropanol solution, soak in 9 kg of 3 mol / L sulfuric acid for 12 hours, and then dry and activate at 75 ° C for 1 hour , get activated minerals;

[0035] S2. Put the activated minerals prepared in step S1 into the electroplating wastewater with a pH value of 6 and a copper content of 121.63 mg / L, and stir the wastewater for 30 minutes. After the treatment, let it stand, separate and precipitate, and discharge the water. The copper content in the effluent is 0.12mg / L, and the copper removal rate is 99.90%.

[0036] The weight percent concentration of the chloroplatinic acid-isopropanol solution is 0.003%.

[0037] The added amount of the activated mineral is 0.02‰ of the weight of the copper-containing wastewater.

Embodiment 3

[0038] Embodiment 3, the treatment process of copper-containing wastewater of the present invention

[0039] S1. Mix 1 kg of polyethyleneimine, 2 kg of 80-mesh diatomite and 0.1 kg of chloroplatinic acid-isopropanol solution, soak in 8 kg of 2 mol / L sulfuric acid for 14 hours, and then dry and activate at 70 ° C for 1 hour , get activated minerals;

[0040] S2. Put the activated minerals prepared in step S1 into the electroplating wastewater with a pH value of 6 and a copper content of 121.63 mg / L, and stir the wastewater for 30 minutes. After the treatment, let it stand, separate and precipitate, and discharge the water. The copper content in the effluent is 0.05mg / L, and the copper removal rate is 99.96%.

[0041]The weight percent concentration of the chloroplatinic acid-isopropanol solution is 0.002%.

[0042] The added amount of the activated mineral is 0.02‰ of the weight of the copper-containing wastewater.

[0043] In addition, the activated minerals prepared in ste...

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

PropertyMeasurementUnit
particle size (mesh)aaaaaaaaaa
particle size (mesh)aaaaaaaaaa
Login to View More

Abstract

The invention belongs to the field of wastewater treatment and in particular relates to a treatment technology of copper-containing wastewater. The technology provided by the invention comprises the following steps: S1, after mixing an amino type compound, a mineral substance and a chloroplatinate-isopropyl alcohol solution; immersing in sulfuric acid for 12 to 16h; then drying and activating at 65 to 75 DEG C for 1 to 2h to obtain an activated mineral substance; S2, adding the activated mineral substance prepared by step S1 into the copper-containing wastewater; carrying out stirring treatment on the copper-containing wastewater; after finishing treatment, standing; separating sediment and discharging water, wherein the weight ratio of the amino type compound to the mineral substance to the chloroplatinic acid-isopropyl alcohol solution is 1 to (2 to 3) to 0.1. The treatment technology of the copper-containing wastewater, provided by the invention is simple, has a stable technology, short treatment time and high copper removing rate, and is applicable to industrialized treatment of the copper-containing wastewater.

Description

technical field [0001] The invention belongs to the field of wastewater treatment, and in particular relates to a treatment process for copper-containing wastewater. Background technique [0002] The source of copper-containing industrial wastewater is mainly produced in smelting, metal processing, machine manufacturing, mine wastewater and other industrial production processes. Among them, the wastewater discharged from metal processing and electroplating factories has the highest copper ion content, and the copper content in wastewater can reach several Tens to hundreds of milligrams per liter. The discharge of copper-containing metal ions into water bodies will seriously affect the quality of water. Investigations and studies have shown that when water contains copper, it will produce peculiar smell, and it will not be drinkable if it exceeds 15 mg / L. The critical concentration of copper sulfate in irrigation water for rice damage is 0.6 mg / L. If copper-containing wastew...

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 Patents(China)
IPC IPC(8): C02F1/62
CPCC02F1/62
Inventor 杨桂海尤小艺王松彪陈昭寰林杰
Owner ZHAOQING NEW RONGCHANG IND ENVIRONMENTAL PROTECTION 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