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Method for removing pollutants in water by micro-electrolysis enhanced flotation

A technology of water pollutants and micro-electrolysis, applied in the direction of water pollutants, flotation water/sewage treatment, chemical instruments and methods, etc., can solve the problems of ineffective removal of organic matter and metal ions, and achieve high product added value and low cost Low, conducive to the effect of industrial production

Active Publication Date: 2019-07-16
ZHENGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the problem that the traditional treatment process is only applicable to wastewater systems containing a single organic or inorganic pollutant, and cannot effectively remove organic matter and metal ions at the same time, the purpose of the present invention is to provide a method for removing water body pollutants by micro-electrolysis enhanced flotation , can achieve simultaneous and efficient removal of water pollutants (metal ions and organic pollutants)

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  • Method for removing pollutants in water by micro-electrolysis enhanced flotation
  • Method for removing pollutants in water by micro-electrolysis enhanced flotation
  • Method for removing pollutants in water by micro-electrolysis enhanced flotation

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Embodiment 1

[0018] A method of micro-electrolysis enhanced flotation to remove water pollutants, Cu in wastewater 2+ , Pb 2+ , Zn 2+ 、Cd 2+ 、Co 2+ 、Ni 2+ 、As 3+ 、As 5+ 、Cr 6+ , the total concentration is 45mg / L, the ionic organic matter is ammonia nitrogen group, xanthate group, cyanide group, phenol group, the total content is 40mg / L, and the pH is 4.0.

[0019] The specific steps are as follows: the mass parts are composed of 72 parts of iron powder, 8 parts of manganese powder, 2 parts of carbon powder, 15 parts of bentonite, and 3 parts of ammonium bicarbonate, mix well, gradually add distilled water, carry out granulation, roast under nitrogen atmosphere, roast The temperature is 600°C, the roasting time is 50min, and the ferromanganese carbon material with an average particle size of 3mm and an ellipsoidal shape is filled into the flotation column; the filling method is tray type, the number of trays is 6, and the filling rate is 6%; Into the flotation column, water containi...

Embodiment 2

[0023] A method for micro-electrolysis enhanced flotation column removal of water pollutants, Cu in wastewater 2+ , Pb 2+ , Zn 2+ 、Cd 2+ 、Co 2+ 、Ni 2+ 、As 3+ 、As 5+ 、Cr 6+ , the total concentration is 180mg / L, the ionic organic matter is ammonia nitrogen group, xanthate group, cyanide group, phenol group, the total content is 160mg / L, and the pH is 6.0.

[0024] The specific steps are as follows: the mass parts are composed of 70 parts of iron powder, 9 parts of manganese powder, 2 parts of carbon powder, 15 parts of bentonite, and 4 parts of ammonium bicarbonate, mix well, gradually add distilled water, carry out granulation, roast under nitrogen atmosphere, roast The temperature is 750°C, the roasting time is 70min, and the iron-manganese-carbon material with an average particle size of 3.5mm and an ellipsoidal shape is filled into the flotation column; the filling method is tray type, the number of trays is 7, and the filling rate is 7%. ; Into the flotation column,...

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Abstract

The invention discloses a method for removing pollutants in water by micro-electrolysis enhanced flotation. The method comprises the following steps: an iron-manganese-carbon material is used as a micro-electrolysis raw material and a phase-state adjusting agent, a filling flotation column is used as a separation reactor, the micro-electrolysis raw material is filled in the flotation column, pollutant-containing water is introduced into the flotation column, after a reaction is performed for a period of time, a surfactant is added into the flotation column for enhanced flotation separation ofthe pollutants in the water, wherein the iron-manganese-carbon material comprises the following components, in parts by mass: 80-90 parts of iron powder, 8-15 parts of manganese powder, 2-5 parts of carbon powder, 15-20 parts of bentonite and 3-5 parts of ammonium bicarbonate; and the surfactant comprises the following components, in parts by mass: 20-40 parts of tetradecyl trimethyl ammonium bromide, 30-35 parts of single-chain N-alkylbenzimidazole, 10-15 parts of carboxylic acid type imidazoline phosphate, 5-10 parts of humic acid, and 15-20 parts of alginic acid. The method provided by theinvention can effectively remove organic and inorganic pollutants in the water at the same time, and has engineering application value.

Description

technical field [0001] The invention belongs to the field of waste water treatment, and in particular relates to a method for removing water body pollutants by micro-electrolysis enhanced flotation. Background technique [0002] Based on different mineral properties and production processes, mineral processing wastewater mainly presents the characteristics of different pollutant forms, various types, complex components, wide concentration ranges, and high toxicity. This is specifically reflected in the fact that organic pollutants are difficult to degrade and coexist with inorganic pollutants. Among them, the refractory organic substances in the mineral processing wastewater mainly include xanthate, black medicine, cyanide, etc., and the inorganic pollutants mainly include Cu 2+ 、Ni 2+ , Zn 2+ etc., as well as various metal ions in dissolved state and complex compounds formed with beneficiation agents and inorganic acid radicals. [0003] At present, the treatment methods...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/465C02F101/20C02F101/30
CPCC02F1/465C02F2101/20C02F2101/30
Inventor 韩桂洪刘兵兵黄艳芳刘炯天王文娟苏盛鹏杨淑珍武宏阳苗焕焕赵菁刘培元韩雪纯耿阳博杜屹凡
Owner ZHENGZHOU UNIV
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