The principle of microelectrolysis, what is the principle of electrolysis?

Microelectrolysis is the use of the potential difference between the iron-carbon particles.

Countless microscopic galvanic cells are formed. These tiny batteries use low-potential iron as the cathode and high-potential carbon as the anode, which contains an acidic electrolyte.

Electrochemical reactions occur in aqueous solutions. As a result of the reaction, the iron is corroded and turns into divalent iron ions into the solution. The effluent of the internal electrolysis reactor is adjusted to a pH value of about 9, and ferrous hydroxide with coagulation is formed due to the interaction of iron ions and hydroxides.

It attracts opposites with particles with a weak negative charge in the pollutant to form a relatively stable floc (also called iron sludge) and is removed. In order to increase the potential difference and promote the release of iron ions, a certain proportion of copper or lead powder is added to the iron-carbon bed.

After microelectrolysis, the BOD COD increased, which was due to the adsorption of some refractory macromolecules by carbon particles or the flocculation of iron ions. Many people think that microelectrolysis can have the ability to decompose macromolecules, and can convert substances that are difficult to biodegrade into substances that are easy to biochemical, and the theoretical basis is that "the new ecology [h] generated in the microelectrolysis reaction can break the chain of some organic matter and organic functional groups."

change". However, the test with methyl and phenol did not confirm that microelectrolysis has the ability to decompose and break the structure of macromolecules.

If the iron-carbon bed is to have the ability to decompose organic macromolecules, hydrogen peroxide is generally added.

Acidic wastewater reacts with iron to form ferrous ions, which form Fenton reagent with hydrogen peroxide to form hydroxyl radicals.

It has strong oxidation performance, and degrades most of the refractory macromolecular organic matter into small molecular organic matter. Again, the reaction can only be carried out under acidic conditions.

1. The micro-electrolysis of wastewater treatment is based on the formation of an electric current through the potential difference between iron and carbon in the wastewater, and the electrochemical redox reaction is carried out on the wastewater, so as to achieve the purpose of removing organic pollutants in the wastewater. More detailed are the equations for chemical reactions. If you need to, you can ask again.

At present, wastewater treatment is generally done with a new type of non-compacted GL microelectrolytic filler.

2. The micro electrolyzed water cup for drinking water is said to be purified and antibacterial through a series of raw materials such as tourmaline to purify wastewater, antibacterial, improve water quality, and improve human immunity, and has a health care effect for long-term use.

Electrolysis principle 1, the concept of electrolysis makes the current pass through the electrolyte solution and cause redox reactions at the cathode and anode.

The process is called electrolysis. NOTE: The current must be DC and not AC. Molten electrolytes can also be electrolyzed. Thought Question: Chemical energy in the solution reaction of the electric book hall.

What is the conversion relationship with electrical energy? Answer: Electricity is converted into pure hidden energy in chemical states. 2. Electrolytic cell.

The concept of a device that causes a redox reaction with the help of an electric current, that is, a device that converts electrical energy into chemical energy at an early stage, is called an electrolytic cell or electrolyzer. 3. Conditions for constituting an electrolytic cell (1) DC power supply. (2) Two electrodes.

The electrode connected to the positive pole of the power supply is called the anode, and the electrode connected to the negative pole of the power supply is called the cathode. (3) Electrolyte solution or molten electrolyte. 4. The essence of electrolyte conduction When the electrolyte solution (or molten electrolyte) is energized, electrons flow from the negative electrode of the power supply along the wire into the cathode of the electrolytic cell, the cation of the electrolyte.

The electrons moved to the cathode underwent a reduction reaction; Anions of electrolytes.

Oxidation occurs when moving to the anode and losing electrons (in some cases, the metal atoms that make up the anode lose electrons).

Electrons flow out of the anode of the cell and along the wire back to the positive electrode of the power supply. In this way, the current passes through the solution (or molten electrolyte) by the directional movement of anions and cations in the electrolyte solution (or molten electrolyte), so the conduction process of the electrolyte solution (or molten electrolyte) is the electrolysis process of the electrolyte solution (or molten electrolyte).

The ions in the electrolyte are often in disorderly motion, and when direct current is applied, the ions move in a directional manner. The positive bending residual ions move to the cathode, where electrons are obtained and reduced; The anion moves towards the anode, where it loses electrons and is oxidized. In the process of buried boiling water electrolysis, OH loses electrons at the anode and is oxidized to oxygen for release; H gets electrons at the cathode, which are reduced to hydrogen and released.

The resulting oxygen and hydrogen are the products of the water electrolysis process. During electrolysis, a battery is formed between the precipitated product on the electrode and the electrolyte solution, and its electromotive force is numerically equal to the theoretical electrolytic voltage of the electrolyte.

For details, please see the encyclopedia "Electrolysis", where there is a very detailed introduction to the principle of electrolysis, which is very worthy of your reference!

Cell formula:

Positive-yang-oxygen, negative-yin-also.

The positive electrode connected to the power supply is the anode, and the negative electrode is the cathode.

Compared with galvanic cells, the negative electrode is oxidized and the positive electrode is reduced.

Galvanic battery: positive and negative electrodes, anion to negative electrode, cation to positive electrode, cathode and anode, negative electrode with cathode, positive electrode with anode.

Understanding: The negative electrode undergoes an oxidation reaction, loses electrons, and becomes a cation, and the anion to the negative electrode attracts the cation yin and yang.

Basic concepts. 1) The process of passing an electric current through an electrolyte solution or molten electrolyte to cause a reduction oxidation reaction on the cathode and anode is called electrolysis.

2) The device that converts electrical energy into chemical energy is called an electrolytic cell or electrolyzer.

3) When the ions reach the electrode of the family balance, electrons are lost or gained, and the redox reaction takes place.

Cathode: An electrode connected to the negative pole of the power supply. (The electrons are reduced).

Anode: An electrode connected to the positive terminal of a power supply. (Oxidation reaction occurs when electrons are lost).

1.Electrolysis of dilute sulfuric acid.

Anode: 2H2O - 4E = 4H+ +O2 Cathode: 2H+ +2E = H2

The total reaction formula is 2H2O = 2H2 + O22Electrolytic sodium hydroxide solution.

Anode: 4OH- -4E = 2H2O + O2 Yin Nian Hunger: 2H2O + 2E = H2 + 2OH - Total Reaction Formula: Yamachito 2H2O = 2H2 + O23Electrolytic sodium chloride solution.

Anode: 2cl- -2e = cl2

Cathode: 2H2O + 2E = H2 + 2OH - Total Reaction Formula: 2H2O + 2Cl- = H2 + Cl2 + 2OH-4Electrolytic copper sulfate solution.

Anode: 2H2O - 4E = 4H+ +O2 Cathode: Cu2+ +2E = Cu

Total reaction formula: 2H2O + 2Cu2+ = 4H+ +O2 + 2Cu

It is related to reversible reactions and ionic reactions.

Okay.

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A KFCT electrolyzer (also known as an electrolyzer) is a device that converts electrical energy into chemical energy.

Electrolysis is the process of passing an electric current through an electrolyte solution (or molten electrolyte) to cause a redox reaction at the cathode and anode.

Composition of the electrolytic cell.

There are two electrodes connected to an external DC power supply.

Electrolyte air-fired solution (or molten electrolyte).

A closed loop is formed.

How the electrolytic cell works (taking the electrolytic CuCl solution as an example):

1) Current flow direction: positive electrode, anode, cathode, negative electrode.

2) The cation moves to the cathode, and the anion moves to the anode.

Methods for judging cathodes and anodes.

1) According to the external power supply: the positive electrode is connected to the anode, and the negative electrode is connected to the cathode. The fight is in vain.

2) According to the direction of the current: outflow from the cathode and inflow from the anode.

3) According to the direction of electron flow: outflow from the anode and inflow from the cathode.

4) According to the ion flow direction: the anions move to the anode, and the cations move to the cathode.

5) According to the electrode product:

a.Anode: the electrode dissolves, escapes from the hole (or the polar region becomes acidic) or Cl;

b.Cathode: precipitation of metals, escape of h (or polar region becoming alkaline).

Application of the principle of electrolysis.

1 Chlor-alkali industry.

2. Electroplating and electrolytic refining of copper.

3.Electrometallurgy.

Electrolytes are compounds that are capable of conducting electricity in an aqueous solution or in a molten state, such as acids, bases, and salts. Compounds that cannot conduct electricity under the above circumstances are called non-electrolytes, such as sucrose, alcohol, etc.

The process by which electrical energy is converted into chemical energy. The process of electrochemical reaction at the electrode-solution interface, even if direct current passes through the electrolyzer. For example, for the electrolysis of water, the cathode in the electrolyzer is iron plate, the anode is nickel plate, and the electrolyte is sodium hydroxide solution.

When energized, under the action of external electric field, the positive and negative ions in the electrolyte migrate to the cathode and anode, respectively, and the ions undergo electrochemical reactions at the electrode-solution interface. The reduction reaction is carried out on the cathode. It is an indispensable substance for human beings.

The electrolysis of water is the splitting of water into H2(G) and O2(G) under the action of an external electric field. Electrolysis is a very powerful means to promote redox reactions, and many redox reactions that are difficult to carry out can be achieved by electrolysis. For example, Kai Finger:

The molten fluoride can be oxidized on the anode to elemental fluorine, and the molten lithium salt can be reduced to metallic lithium on the cathode. The electrolysis industry plays an important role in the national economy, and many non-ferrous and rare metals are smelted and refined, and the preparation of basic chemical products, as well as electroplating, electropolishing, anodizing, etc., are all realized through electrolysis.