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Composite treating agent and application thereof

A composite treatment and conditioner technology, applied in water/sewage treatment, mining wastewater treatment, adsorption water/sewage treatment, etc., can solve the problems of secondary pollution, low cost of biological treatment, difficult to meet the requirements, etc., to reduce The effect of COD value, simple process flow and broad application prospects

Inactive Publication Date: 2017-04-26
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, acid-base neutralization method and coagulation sedimentation method are easy to cause secondary pollution, and it is not easy to decompose organic substances in wastewater; chemical oxidation method has poor treatment effect on pine alcohol oil; artificial wetland method occupies a large area and has a long treatment cycle; The cost of biological treatment is relatively low, but the reaction conditions are relatively harsh, and it is difficult to meet the requirements
In addition, the current treatment of mineral processing wastewater mainly studies the removal of black medicine, xanthate and heavy metal ions, while there are few studies on the degradation of terpineol oil in mineral processing wastewater

Method used

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  • Composite treating agent and application thereof
  • Composite treating agent and application thereof
  • Composite treating agent and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Example 1: Taking a certain lead-zinc mineral processing wastewater as the research object, the content of terpineol oil is 12.3 mg / L, the COD is 638.6 mg / L, and the pH value is 11.

[0022] (1) Take 1L of mineral processing wastewater and put it in a beaker, add a pH regulator (the pH regulator is a mixture of hydrochloric acid and sulfur dioxide) to the mineral processing wastewater containing terpineol oil, and adjust the pH value of the wastewater to 8.0;

[0023] (2) Add high-efficiency terpineol oil composite treatment agent (composite treatment agent is manganese dioxide, sodium hexametaphosphate, ferrous chloride, diatomaceous earth, A mixture of hydrogen peroxide, chlorine dioxide and distilled water, wherein the mass percentage of each component in the composite treatment agent is 2% manganese dioxide, 5% sodium hexametaphosphate, 10% ferrous chloride, 20% diatomaceous earth, 12% hydrogen peroxide %, chlorine dioxide 16%, distilled water 35%), wherein the soli...

Embodiment 2

[0030] Embodiment 2: Taking a certain copper ore dressing wastewater as the research object, wherein the content of terpineol oil is 14.7 mg / L, the COD is 702.3 mg / L, and the pH value is 4.5.

[0031] (1) Take 1L of mineral processing wastewater and put it in a beaker, add a pH regulator (the pH regulator is a mixture of lime and sodium carbonate) to the mineral processing wastewater containing terpineol oil, and adjust the pH value of the wastewater to 6.0;

[0032] (2) Add high-efficiency terpineol oil composite treatment agent (composite treatment agent is manganese dioxide, sodium hexametaphosphate, ferrous chloride, diatomaceous earth, A mixture of hydrogen peroxide, chlorine dioxide and distilled water, wherein the mass percentage of each component in the composite treatment agent is manganese dioxide 8%, sodium hexametaphosphate 2.5%, ferrous chloride 8.5%, diatomaceous earth 16%, hydrogen peroxide 15% %, chlorine dioxide 20%, distilled water 30%), wherein the solid-to-...

Embodiment 3

[0039] Example 3: Taking a certain nickel ore dressing wastewater as the research object, wherein the content of terpineol oil is 20.6 mg / L, the COD is 929.8 mg / L, and the pH value is 5.

[0040](1) Take 1L of mineral processing wastewater and put it in a beaker, add a pH regulator to the mineral processing wastewater containing terpineol oil (the pH regulator is sodium hydroxide, and adjust the pH value of the wastewater to 7.5;

[0041] (2) Add high-efficiency terpineol oil composite treatment agent (composite treatment agent is manganese dioxide, sodium hexametaphosphate, ferrous chloride, diatomaceous earth, A mixture of hydrogen peroxide, chlorine dioxide and distilled water, wherein the mass percentage of each component in the composite treatment agent is 0.5% of manganese dioxide, 25% of sodium hexametaphosphate, 2% of ferrous chloride, 2.5% of diatomaceous earth, and 15% of hydrogen peroxide %, chlorine dioxide 20%, distilled water 35%), wherein the solid-to-liquid rat...

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Abstract

The invention relates to a composite treating agent and an application thereof, and belongs to the technical field of wastewater treatment. The application of the composite treating agent is performed by the steps of adding a pH regulator into terpenic oil-comprising beneficiation wastewater to regulate the pH value of the wastewater; then adding the composite treatment agent into the wastewater at a normal temperature in a stirring condition to be reacted, so as to remove terpenic oil from the wastewater, lower a COD value of the wastewater, and lower solution chroma; and performing static settlement, wherein obtained supernatant is processed water which can be discharged. The cost for processing the beneficiation wastewater is low; the technological process is simple; the composite treating agent is stable in performance; the terpenic oil can be degraded efficiently; the COD value of the wastewater can be effectively lowered; the water sample chroma is removed; secondary pollution is avoided; and therefore, the composite treating agent is high in application prospect.

Description

technical field [0001] The invention relates to a composite treatment agent and its application, belonging to the technical field of wastewater treatment. Background technique [0002] my country is a big mining country, and mines will produce a large amount of beneficiation wastewater during production and operation. Mineral processing wastewater includes mineral processing process drainage, tailings pond overflow water and mine drainage. The types and components of mineral processing agents remaining in wastewater are complex. Due to its strong foamability and good stability, pine alcohol oil is the most widely used foaming agent in mines in my country. After flotation, some pine alcohol oil will remain in the mineral processing wastewater. Pinitol oil is a yellow-brown oily transparent liquid, slightly soluble in water, and has a rosin flavor, so it can cause changes in the sensory properties of water bodies; the active ingredients of pine oil are α, β, and γ three terpe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/00C02F1/28C02F1/76C02F103/10C02F101/34
CPCC02F1/00C02F1/281C02F1/725C02F1/76C02F2103/10C02F2101/34
Inventor 薛晨魏志聪曾明李国栋张琳
Owner KUNMING UNIV OF SCI & TECH