Unlock instant, AI-driven research and patent intelligence for your innovation.

Continuous treatment method of wastewater containing xanthate

A treatment method and wastewater technology, which is applied in water/sewage treatment, neutralized water/sewage treatment, oxidized water/sewage treatment, etc., can solve the problems of difficult and time-consuming separation of adsorbent and wastewater, and achieve resource saving and operation Simple and convenient, the effect of small dosage

Inactive Publication Date: 2018-10-26
KUNMING UNIV OF SCI & TECH
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

201710045729.4 discloses a treatment method for adsorbing xanthate in wastewater. This invention uses mesoporous silica to adsorb xanthate in wastewater, which can realize the removal of xanthate in wastewater. The adsorption method realizes the removal of xanthate. However, this method adopts batch operation, and it is difficult to separate the adsorbent from the waste water and takes a long time.

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
  • Continuous treatment method of wastewater containing xanthate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] After filtering the beneficiation wastewater containing xanthate, adjust the pH to 6.5, mix the hydrogen peroxide with it in a volume ratio of 1:100,000, and pump it into a fixed bed with ZSM-5 as the filler for catalytic degradation. The initial xanthate concentration is 20 mg / L, the catalyst amount is 10 g, the flow rate is 1 mL / min, and the residence time of the mixture of hydrogen peroxide and wastewater in the fixed bed is 6 min. Such as figure 1 As shown, the xanthate in wastewater can be completely degraded for 500h.

Embodiment 2

[0021] After filtering the beneficiation wastewater containing xanthate, adjust the pH=5.5, mix the hydrogen peroxide with it in a volume ratio of 1:250000, and pump it into a fixed bed with ZSM-5 as the filler for catalytic degradation reaction. The initial xanthate concentration is 20mg / L, the catalyst amount is 5g, the flow rate is 1.5mL / min, the residence time of the mixture of hydrogen peroxide and wastewater in the fixed bed is 3min, which can completely degrade the xanthate in the wastewater for 300h.

Embodiment 3

[0023] After filtering the beneficiation wastewater containing xanthate, adjust pH=3.0, mix hydrogen peroxide with it in a volume ratio of 1:1000, and pump into a fixed bed filled with mordenite for catalytic degradation reaction. The initial xanthate concentration is 20 mg / L, the catalyst amount is 30 g, the flow rate is 1 mL / min, and the residence time of the mixture of hydrogen peroxide and wastewater in the fixed bed is 15 min. It can completely degrade xanthate in wastewater for 400h.

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 provides a continuous treatment method of wastewater containing xanthate. After the wastewater containing the xanthate is filtered, the pH is adjusted to be smaller than 10, and after the wastewater containing the xanthate and hydrogen peroxide are mixed according to a certain ratio, the mixture is pumped into a fixed bed filled with a catalyst for catalytic degradation. The catalystadopted in the method is stable in property and pollution-free to the environment, moreover, the fixed bed is simple to operate, and the xanthate in the beneficiation wastewater can be subjected to long-term effective catalytic degradation.

Description

Technical field [0001] The invention relates to a continuous treatment method for waste water containing xanthate, belonging to the field of waste water treatment. Background technique [0002] The chemical name of xanthate (xanthate) is hydrocarbyl dithiocarbonate, and the chemical formula is ROCSSNa. At present, the most widely used butyl xanthate. Butyl xanthate is a light yellow powder with a pungent odor and is easily soluble in water. When a large amount of waste water containing xanthate is discharged, it can make the surface water smell bad. In water bodies, xanthate can inhibit the growth of a variety of aquatic organisms, and may be universally teratogenic to aquatic animal embryos. The toxicity of xanthate to humans is mainly manifested in the nervous system and liver and other organs. Due to the similar compatibility of metallothionein in the liver, xanthate is easy to accumulate in the liver, and it will cause disease in the long term. Moreover, under slightly aci...

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): C02F9/04C02F1/72C02F101/34
CPCC02F1/722C02F1/725C02F9/00C02F2101/34C02F2101/40C02F1/66C02F1/001
Inventor 罗永明张黎明郭飞飞何昱轩安潇陆继长高晓亚朱文杰
Owner KUNMING UNIV OF SCI & TECH