When the sintering temperature was °C, the sintering time was 30 min, the initial pH of the simulated wastewater was 7, and the amount of filler was 5 g, the removal effect of the micro-electrolytic fillers prepared under the conditions of the iron-carbon ratios of 1:1, 1:1.5, 1:2, 1:2.5, and 1:3 on the methyl orange in wastewater was investigated. The experimental results are shown in Figure 5
From Figure 5 , it can be seen that the iron-carbon ratio of the micro-electrolytic filler has a certain influence on the simulated wastewater treatment performance of the filler. When the iron-carbon ratio was 1:1 and the treatment time was 20 min, the removal rate of methyl orange reached more than 95%. When the treatment time was 30 min, the removal rate of methyl orange reached more than 99%. The treatment effect of an iron-carbon ratio of 1:1 was relatively good. The treatment effect of an iron-carbon ratio of 1:1.5 was similar to that of an iron-carbon ratio of 1:1, but the iron-carbon ratio of 1:1.5 was slightly better. When the iron-carbon ratio of the filler was reduced to 1:2, the removal rate of methyl orange reached 98.8% at 20 min, 99% at 30 min, and 99.9% at 40 min. It can be seen that its effect of removing methyl orange was excellent and significantly better than other fillers. Further reducing the iron-carbon ratio to 1:2.5 and 1:3, the methyl orange removal rate was 91.7% and 83.2% at the treatment time of 20 min, respectively. The treatment effect was worse than the filler with a 1:2 iron-carbon ratio. From the above results, it can be concluded that with the decrease in the iron-carbon ratio, the removal effect of methyl orange-simulated wastewater of fillers first became better and then worse, and the micro-electrolysis filler with an iron-carbon ratio of 1:2 had the best effect on methyl orange wastewater treatment.
Understanding the mineral phase of the iron-carbon micro-electrolytic filler is of great significance for studying its mechanism of treating simulated wastewater. The prepared micro-electrolysis filler was analyzed by XRD to further reveal its influence mechanism. The micro-electrolytic fillers prepared under five conditions of iron-carbon ratios of 1:1, 1:1.5, 1:2, 1:2.5, and 1:3 were characterized. The obtained XRD patterns are shown in Figure 6
It can be seen from the figure that the fillers with different ratios all generated the diffraction peaks of zero-valent iron at 44.52°, 65.14°, and 82.32°, and the diffraction peak of SiO2 at 26.61°, and there were no other obvious impurity peaks. It can be seen that the iron ore powder in the filler has been basically reduced to metallic iron, and Zn and Pb were removed by evaporation during roasting. When the iron-carbon ratio was reduced to 1:2.5 and 1:3, there was an obvious 002-wide peak on the XRD curve, which corresponded to the graphite peak of coal tar. The reason for the poor treatment efficiency may be due to the high carbon content of the filler, and the number of primary cells generated decreased, thus reducing the efficiency of wastewater treatment.
Fe2O3 + 3C == 3CO&#; + 2Fe
(6)
3Fe2O3 + CO == 2CO2&#; + 2Fe3O4
(7)
2Fe3O4 + 2CO == 2CO2&#; + 6FeO
(8)
FeO + CO == CO2&#; + Fe
(9)
SEM images of iron-carbon micro-electrolytic fillers with different ratios are shown in Figure 7 . Many pores can be observed on the surface of the filler, and the boundary between iron and carbon is also very clear. After sintering, the metal iron particles produced by reduction had an oolitic structure. The filler with an iron-carbon ratio of 1:1 had a larger particle size of iron particles, but its carbon content was the lowest among all fillers. The low carbon content will affect the reduction of iron ore. Therefore, it can be seen from the figure that the number of iron particles on the surface was obviously small, and there were many iron minerals that have not been reduced. It can be seen from the electron microscope image of the filler with the iron-carbon ratio of 1:2 that it had more iron particles that have been reduced, and the iron particles and the carbon matrix were evenly distributed, and the reduction degree was relatively high. The reaction chemical formula is as follows:
Therefore, in the process of treating wastewater, the filler with an iron-carbon ratio of 1:2 had a better treatment effect.
Our Advantages
10,000 square meters of water treatment filler production workshop
20,000 square meters of high-end environmental protection equipment production workshop
square meters large open laboratory
More than 30 productive experimental bases
More than 40 pilot systems
More than 50 small pilot test devices
More than 60 large instruments and equipment
More than 50 petents
More than 18 years of experience
Top 5 position of environmental protection technology industry in Shandong province, China.
Product Description
This series of catalysts is a kind of multi-component catalytic oxidation catalyst developed for the characteristics of organic wastewater which is difficult to degrade and biochemical. It has obtained a national invention patent and is the inventor of a new micro-electrolytic catalyst in China. It is a new type of unbonded micro-electrolytic catalyst, which is produced by multi-metal alloy fusion catalyst and high temperature microporous activation technology. When acting in wastewater, COD can be removed efficiently, chroma can be reduced, biodegradability can be improved, the treatment effect is stable and lasting, and the phenomenon of catalyst passivation and hardening can be avoided in the process of operation.
Detailed Photos
Product Parameters
Catalyst Parameters
Model
Specific Gravity (T/m³)
Poriness
Prsessure (kgf/cm²)
Granul Size (cm)
Catalytic
LEMBR-01
1.3~1.6
&#;65%
&#;600
1~3, 3~5, 5~10
Noble Metal
LEMBR-02
1.3~1.6
&#;65%
&#;600
1~3, 3~5, 5~10
Rare-earth Metal
LEMBR-03
If you are looking for more details, kindly visit NFJ.
1.3~1.6
&#;65%
&#;600
1~3, 3~5, 5~10
Composite Metal
Technological Advantage
(1) The alloy structure ensures that the "primary battery" continues to be highly efficient.
(2) Bigger specific surface area improves current density and better catalytic oxidation effect.
(3) High activity, low density, no passivation, no hardening, fast reaction rate, long-term stable and effective degradation resuits.
(4) Improved oxidation efficiency and expanded application range for wastewater treatment.
(5) Greatly reduces the operating intensity of workers.
(6) The treatment of wastewater by the filler integrates the oxidation, reduction, electro-deposition, flocculation, adsorption, bridging, sweeping and co-precipitation processes.
(7) The treatment cost is low and the wastewater biodegradability is greatly improved.
(8) The supporting facilities can be customized.
Application Field
1. Dye, chemical, pharmaceutical wastewater; Coking and petroleum wastewater;
-- COD value decreased significantly and BOD/COD value increased significantly after the wastewater treatment.
2. Printing and dyeing wastewater; Leather wastewater;
-- Good application for decolorization and obvious removal of COD.
3. Electroplating wastewater; Printing wastewater; Mining wastewater; Other wastewater containing heavy metals;
-- Heavy metals can be removed from the above-mentioned wastewater.
4. Organic phosphorus agricultural wastewater; Organochlorine agricultural wastewater;
-- Greatly improve the biodegradability of the above wastewater, and can remove phosphorus, sulfide.
Related Products
MICROELECTROLYSIS CATALYTIC OXIDATION REACTOR
This reactor mainly be used in micro-electrcolysis technology for wastewater treatment. The micro-electrolysis technology is an ideal process for high-concentration refractory organic wastewater treatment. This process is mainly used for high-salt, refractory and high-chroma wastewater treatment. The technology can not only reduce COD and color with low cost, but also greatly improve the biodegradability of wastewater. The process has the advantages of wide application range, good treatment results, low cost, short treatment time, convenient operation and maintenance, as well as low power consumption etc. The technology can be widely applied to pretreatment and advanced treatment of various industrial wastewater.
Certifications
National high-tech enterprises
The "little giant" of specialized and sophisticated enterprises national
Specialized and sophisticated enterprises that produce new and unique products of Shandong province
Shandong gazelle enterprise
Shandong province research and development center
Shandong Industrial Design Center
Hidden champions
ISO quality system certification enterprise
ISO Occupational health and safety management system certification enterprise
ISO environmental management system certification enterprise
More than 50 invention patents and 10 utility model patents granted
Company Profile
Shandong Longantai Environmental Protection Sci-tech Co., Ltd. was founded in , integrated R&D, manufacturing, process design, project construction and water treatment, focusing on the efficient treatment and comprehensive utilization of industrial wastewater and high-salt wastewater, and providing energy-saving, efficient, resource recycling solutions and key materials and equipments.
Longantai has accumulated rich experience in the pretreatment of high-concentration industrial wastewater, advanced wastewater treatment, comprehensive treatment of high-salt wastewater, water reuse in wastewater, wastewater recycling and other aspects. There are strong strength and perfect quality system in the research and development and manufacturing of water treatment catalysts and key equipments.
CASE INFERENCE
1. Chemical/pharmaceutical/industrial park comprehensive wastewater pretreatment and upgrading
2. Coal chemical wastewater treatment
3. Petrochemical energy wastewater treatment
4. Dye/pigment wastewater treatment
5. River water quality improvement
6. Pesticide wastewater treatment
7. Reverse osmosis membrane concentrated water treatment
8. Leather waste water treatment
9. Total treatment technology of landfill leachate
10. Electroplating wastewater treatment
FAQ
1.Q: Where is your company? How can I visit there?
A:The company is located in Zhongcheng International, Kuiwen District, Weifang City, Shandong Province, China. It is about an hour's drive from Qingdao Airport and Weifang Railway Station. If you need it, we can come and pick you up. Welcome to visit our company.
2.Q:Do you have minimum order quantity request?
A:No minimum order, but it can get a discount if you order a large quantity.
3.Q:Do you have certificates?
A:Yes,we have ISO,SGS certificate.
4.Q:Can you meet my special requirements for the product?
A:Yes,we have a professional design team.We can provide drawings according to your requirements.
5.Q:How to buy your idea products?
A:You can provide us your water or waste sources,water or waste quality,flow rate and ground area (connect us for more details)
6.Q:How to pay?
A:T/T and L/C are acceptable and T/T will be more appreciated 30% deposit before producing,70% balance before loading by T/T.
7.Q:What is the delivery time ?
A: It depends on order quantities .Generally speaking ,the delivery time will be within 2 to 4 weeks.
8.Q:How to pack the products?
A:We use standard package .If you have special package requirements ,we will pack as required ,but the fees will be paid by customers.
9.Q:How to install after the equipment arriving destination?
A:We will provide detailed illustrations to you. If it is necessary, we will send technicians to help you. However, the visa fee ,air tickets ,accommodation, wages will be paid by buyers.
Contact us to discuss your requirements of China Iron-carbon microelectrolysis media. Our experienced sales team can help you identify the options that best suit your needs.