What are the technical essentials of iron carbon filler treatment of wastewater?

TPFC iron-carbon micro-electrolytic filler [use]: 1. Reduce sewage COD2, improve the biodegradability of sewage 3, remove the color of sewage 4, destroy the sewage effect of broken chain iron-carbon micro-electrolytic filler: the requirements of each sewage treatment are different, some just simply reduce COD, and some need to reduce COD and improve biodegradability, so the treatment effect of TPFC for each type of wastewater is different, you can try it first.

The longer the stay, the more thorough the reaction, the more focused on the water efficiency, the actual treatment, waiting for the stay, and considering the complete reaction and then staying, it has already worked.

The main thing is that it is cheap, and waste utilization, and the catalyst dosage can be reduced in the Fenton process in the future. The principle of iron-carbon microelectrolysis is to use the principle of metal corrosion to form a good process for galvanic batteries to treat wastewater, also known as internal electrolysis, iron chip filtration, etc. Microelectrolysis technology is an ideal process for treating high-concentration organic wastewater, also known as internal electrolysis.

It is to electrolyze wastewater by using the potential difference generated by the micro-electrolytic material filled in the wastewater without electricity, so as to achieve the purpose of degrading organic pollutants. According to the experimental test results of a large number of industrial wastewater treatment experiments of Shanghai Electric Research Institute, iron and carbon as a pretreatment method can greatly reduce the concentration of harmful and toxic substances in refractory wastewater, and cooperate with the subsequent Fenton process to minimize the cost of pretreatment and make the wastewater biochemical.

OH microelectrolysis technology is an ideal process for the treatment of high-concentration organic wastewater, also known as internal electrolysis. It is to electrolyze the wastewater by using the potential difference generated by the OH iron-carbon micro-electrolytic filler filled in the wastewater without electricity, so as to achieve the purpose of degrading organic pollutants. When the system is supplied with water, a myriad of micro-battery systems form within the device, forming an electric field in its operating space.

The new ecology [H] and Fe2+ produced in the treatment process can undergo redox reactions with many components in the wastewater, such as destroying the chromogenic groups or co-coloring groups of the colored substances in the colored wastewater, and even breaking the chain to achieve degradation and decolorization; The generated Fe2+ is further oxidized to Fe3+, and their hydrates have strong adsorption-flocculation activity, especially after adding alkali to adjust the pH value, the formation of ferrous hydroxide and iron hydroxide colloidal flocculants, their adsorption capacity is much higher than that of the iron hydroxide colloids obtained by hydrolysis of general agents, and can adsorb a large number of tiny particles, metal particles and organic macromolecules dispersed in water. The principle of operation is based on the combined action of electrochemical, oxidation-reduction, physisorption and flocculation and sedimentation to treat wastewater. This method has the advantages of wide range of application, good treatment effect, low cost, convenient operation and maintenance, and no need to consume power resources.

This process can greatly reduce COD and color, improve the biodegradability of wastewater, and have a good effect on the removal of ammonia nitrogen.

Principle of iron-carbon filler sewage treatment:

How it works. General principle: Microelectrolysis is based on galvanic cell reactions in electrochemistry. When iron and carbon are immersed in the electrolyte solution, there is a presence between Fe and C before and after the treatment of printing and dyeing wastewater.

The electrode potential difference thus forms a myriad of micro-battery systems that form an electric field in their operating space. The new ecological ferric ions produced by the anodic reaction have strong reducing ability, which can reduce some organic substances, and can also open the double bonds of some unsaturated groups (such as carboxyl-COOH, azo-N-), so that some refractory cyclic and long-chain organic compounds can be decomposed into small molecule organic compounds that are easily biodegradable and improve biodegradability. In addition, divalent and trivalent iron ions are good flocculants, especially the new ferric ions have higher adsorption-flocculation activity, adjusting the pH of wastewater can make iron ions become flocculent precipitation of hydroxides, adsorbing suspended or colloidal particles and organic polymers in sewage, which can further reduce the color of wastewater, and remove some organic pollutants to purify wastewater.

The cathodic reaction produces a large number of new ecological [H] and [O], and under the condition of acidic conditions, these active ingredients can undergo redox reaction with many components in the wastewater, so that the organic macromolecules are broken and degraded, thereby eliminating the color of the organic wastewater and improving the biodegradability of the wastewater.

Iron carbon galvanic cell reaction:

Anode: Fe-2E

fe2+e(fe/fe2+)

Cathode: 2h++2e

h2e(h+/h2)

When oxygen is present, the cathode reacts as follows: O2+

4h++4e→

2h2oe(o2)

2h2o+4e

4oh-e(o2/oh-)

In general, the microelectrolytic reaction is that the iron atom and the carbon atom are next to each other or separate to form a galvanic cell reaction. This iron-carbon contact is not conducive to the transfer of electrons, and the charge is efficient.

The rate is low, so the removal of organics from wastewater is generally less efficient. At the same time, once the iron and charcoal are stratified, it will be more unfavorable for the removal of organic matter.

The iron-carbon inclusive microelectrolysis reaction is a galvanic cell reaction formed by the mutual inclusion of iron atoms and carbon atoms. This kind of iron-carbon contact does not have the problem of iron-carbon stratification, so it is more conducive to the transfer of electrons, the charge efficiency is higher, and the removal efficiency of organic matter in wastewater is also higher.

Iron Carbon Filler Sewage Treatment Cost:

Weifang Puyin Worun Environmental Protection Technology Co., Ltd. has a specific gravity of about one ton of carbon filler, and the cost of water treatment per square meter is about yuan.

The proportion of similar products on the market is about tons of cubic meters, so that the initial investment increases, due to excessive consumption, the follow-up cost is much higher than the new iron and carbon filler, so customers must make a multi-directional comparison when choosing iron and carbon filler, and finally choose the right product for themselves.

Iron and carbon treatment method, also known as iron and carbon micro electrolysis method or iron carbon internal electrolysis method, it is an application form of metal iron treatment wastewater technology, and the iron carbon method is used as a pretreatment technology to treat toxic and harmful and highly concentrated COD wastewater with a unique effect. The treatment mechanism of the iron-carbon method is not fully understood, and one of the more accepted explanations is that under acidic conditions, countless microcurrent reaction pools are formed between iron and carbon, and organic matter is reduced and oxidized under the action of microcurrent.

The effluent of iron and carbon is neutralized with lime or lime milk, and the Fe(OH)2 colloidal floc generated has a strong flocculation and adsorption capacity for organic matter. Therefore, the iron-carbon method is a comprehensive application of the reducing properties of iron, the electrochemical properties of iron-carbon and the flocculation and adsorption of iron ions, and it is the joint effect of these three properties that makes the use of iron-carbon method have a good treatment effect.

The disadvantages of the iron-carbon method are: (1) the iron filings are easy to form lumps after long-term soaking in acidic medium, resulting in blockage and forming a ditch flow, which makes the operation difficult and the treatment effect is reduced; (2) The amount of iron dissolved by iron under acidic conditions is larger, and the amount of sludge produced after alkali neutralization is larger.

The iron-carbon filler is produced by high-temperature sintering and modern smelting technology, and the high-temperature curing cycle of each batch of products reaches 7-10 days. When the micro-electrolyzed water treatment system is watered, the iron-carbon filler filled in the wastewater itself generates volt potential differences and forms countless micro-battery systems. The new ecology [H] and Fe2+ produced can have redox effect with wastewater, which can obviously destroy the chromogenic groups or co-chromogroups in the colored wastewater, and even break the chain to achieve degradation and decolorization.

The generated Fe2+ is further oxidized to Fe3+, and their hydrates have a strong adsorption-flocculation effect, especially the formation of iron hydroxide and iron hydroxide colloidal flocculant after alkali adjustment of pH value, and its adsorption capacity is more prominent. The process treats a wide range of water quality, and has the advantages of wide range of application, good effect, low cost, convenient operation and maintenance, and no power consumption. It is widely used in the treatment of refractory high-concentration wastewater, which not only greatly reduces the color and COD, but also can significantly improve the biodegradability of wastewater, and will not cause secondary pollution to water quality.

Iron-carbon fillers have the following advantages:

1.A variety of catalysts are fused by multiple metals to form an integrated alloy through high-temperature smelting to ensure the continuous and efficient "galvanic cell" effect. There is no separation of the cathode and cathode as in physical mixing, which affects the galvanic cell reaction.

2.The architectural microporous structure provides a large specific surface area and a uniform water air flow channel, which provides a larger current density and a better catalytic reaction effect for wastewater treatment.

3.Strong activity, light specific gravity, no passivation, no compaction, fast reaction rate, stable and effective long-term operation.

4.Adjusting the different proportions of catalytic components for different wastewater improves the reaction efficiency and expands the application range of wastewater treatment.

5.During the reaction, the active iron contained in the packing material acts as an anode and continuously provides electrons and dissolves into the water, while the cathode carbon flows out with the water in the form of very small particles. When used for a certain period, the filler can be supplemented by direct dosing, and the stability of the system can be restored in time, and the operation intensity of workers can be greatly reduced.

6.The treatment of wastewater by packing integrates oxidation, reduction, electrodeposition, flocculation, adsorption, bridging, sweeping and co-precipitation.

7.The treatment cost is low, and the biodegradability of wastewater can be greatly improved while greatly removing organic pollutants.

8.Supporting facilities can be realized according to the scale and user requirements of the structure and equipment to meet a variety of needs.

9.Specifications: 14-18mm spherical type Technical parameters: specific gravity: tons cubic meters, specific surface area: square meters grams, void ratio: 45%, cylinder compressive strength 3mpa

Details of the treatment of dye wastewater with iron-carbon fillers

Details of dye wastewater treatment with iron-carbon filler》Dye wastewater has the characteristics of large water volume, deep color, large water quality change, large acidity, and high content of organic pollutants. Because the wastewater contains a large number of cationic dyes and basic dyes, as well as a large number of inorganic salts, the biodegradability of these wastewater is not high, the treatment cost is relatively high, and its effect is unsatisfactory.

Due to its advantages of simple process, convenient operation, low operating cost and good decolorization effect, iron-carbon microelectrolysis has become one of the preferred wastewater treatment technologies such as dyes and printing and dyeing. Of course, relying on this method alone to treat high-concentration organic wastewater, although the decolorization effect is obvious, it cannot completely and effectively degrade the organic matter in the wastewater, and the treated wastewater COD often cannot meet the discharge standard. At present, the micro-electrolysis-anaerobic-aerobic combination process is mainly used, and the treatment of dye wastewater can meet the requirements of environmental protection.

The micro-electrolysis process can reduce the COD of wastewater to a certain extent, remove the color of wastewater, improve the biodegradability of wastewater, and provide a good guarantee for the continuous and stable operation of subsequent biochemical treatment facilities.

Details of dye wastewater treated with iron-carbon filler》 Details of dye wastewater treated by iron-carbon filler》 Dye wastewater has the characteristics of large water volume, deep color, large water quality change, large acidity, and high content of organic pollutants. Because the wastewater contains a large number of cationic dyes and basic dyes, as well as a large number of inorganic salts, the biodegradability of these wastewater is not high, the treatment cost is relatively high, and its effect is unsatisfactory. Due to its advantages of simple process, convenient operation, low operating cost and good decolorization effect, iron-carbon microelectrolysis has become one of the preferred wastewater treatment technologies such as dyes and printing and dyeing.

Of course, relying on this method alone to treat high-concentration organic wastewater, although the decolorization effect is obvious, it cannot completely and effectively degrade the organic matter in the wastewater, and the treated wastewater COD often cannot meet the discharge standard. At present, the micro-electrolysis-anaerobic-aerobic combination process is mainly used, and the treatment of dye wastewater can meet the requirements of environmental protection. The micro-electrolysis process can reduce the COD of wastewater to a certain extent, remove the color of wastewater, improve the biodegradability of wastewater, and provide a good guarantee for the continuous and stable operation of subsequent biochemical treatment facilities.

This article**Shandong Puyin Worun Environmental Protection,