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Activated carbon [1] Activated carbon can effectively adsorb chlorinated hydrocarbons, organophosphorus and carbamate pesticides, as well as benzyl ether, n-nitrochlorobenzene, naphthalene, ethylene, xylenol, phenol, DDT, aldrin, alkylbenzene sulfonic acid and many esters and aromatic compounds. The secondary effluent also contains organic matter that is not adsorbed by activated carbon, such as intermediate degradable substances of protein, which is more difficult to be adsorbed by activated carbon than the original organic matter, and the removal ability of activated carbon to THMS is low, only reaching 23-60%. The activated carbon adsorption method is used in combination with other treatment methods, and the ozone-activated carbon method, coagulation-adsorption activated carbon method, Habberer process, activated carbon-diatomaceous earth method, etc., make the adsorption cycle of activated carbon significantly prolonged, the dosage is reduced, and the treatment effect and scope are greatly improved.
Activated carbon is a very fine carbon particle with a large surface area, and there are even finer pores in the carbon grain - capillaries. This capillary has a strong adsorption capacity and is in full contact with gases (impurities) due to the large surface area of the carbon particles. When these gases (impurities) touch the capillaries, they are adsorbed and purified.
The surface area of activated carbon is very important, and the specific surface area of activated carbon is only true and reliable if the results are detected by the BET method, and there are many instruments in China that can only do direct comparison detection. At this stage, the specific surface area test at home and abroad adopts the multi-point bet method, and the specific surface area determination standards formulated at home and abroad are based on the bet test method, please refer to the Chinese national standard (GB T 19587-2004) - the method for determining the specific surface area of solid substances by gas adsorption. Specific surface area detection is actually more time-consuming work, due to the difference in sample adsorption capacity, the test of some samples may take a whole day, if the test process is not fully automated, then the tester can not leave at any time, and to be highly concentrated, observe the dashboard, control the knob, a little carelessness will lead to the failure of the test process, which will waste a lot of valuable time of the tester.
F-SORB 2400 specific surface area tester is really able to realize the BET detection function of the instrument (with direct comparison method), the more important F-SORB 2400 specific surface area tester is the only fully automated and intelligent specific surface area testing equipment in China so far, its test results are highly consistent with the international level, the stability is also very good, while reducing human error, improve the accuracy of test results.
Adsorption capacity of activated carbon for each gas (unit: ml cm3):
h2、 o2、n2、cl2、co2
Zhengsen brand.
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Shenzhou direct drinking water machine, China aerospace special direct drinking water system.
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Environmental protection equipment includes: filtration and dust removal equipment, sewage treatment equipment, air purification equipment, solid waste treatment equipment, noise prevention and control equipment, environmental monitoring equipment, disinfection and anti-corrosion equipment, energy-saving and consumption-reducing equipment, sanitation and cleaning equipment, environmental protection materials and chemicals, environmental protection instruments and meters.
Environmental protection equipment refers to the mechanical products, structures and systems manufactured and constructed by production units or construction and installation units for controlling environmental pollution and improving environmental quality with environmentally friendly activated carbon. Some people also believe that environmental protection equipment Bitang refers to mechanical processing products that control environmental pollution, honeycomb activated carbon such as dust collectors, welding fume purifiers, monomer water treatment equipment, noise controllers, etc. This understanding is incomplete.
Introduction of environmental protection
Environmental protection equipment should also include power equipment for transporting fluid substances containing pollutants, such as pumps, fans, conveyors, etc.; At the same time, it also includes monitoring and control instruments and instruments to ensure the normal operation of pollution prevention and control facilities, such as testing instruments, pressure gauges, flow monitoring devices, etc. There are many environmental protection problems, whether it is the disposal party or the waste producer, there will be environmental protection requirements to install environmental protection equipment, there are many environmental protection equipment companies on the dangerous exchange network, you can go to see. Environmental governance is already an urgent matter, and we should pay more attention to environmental protection.
Environmental protection equipment should include complete sets of equipment: such as air purifiers, sewage treatment equipment, ozone generators, industrial oxygen generators, etc. This is a device that can be used to clean up the environment in both industry and home.
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The types of environmental protection equipment are very Sun Kaiduo, and the following are some of the more common environmental protection equipment:
1.Flue gas desulfurization equipment: mainly used for flue gas removal of SO2 and other sulfides, including wet flue gas desulfurization, dry flue gas desulfurization and selective catalytic reduction denitrification technologies.
2.Flue gas denitrification equipment: mainly used for flue gas to remove NOx and other nitrides, including denitrification catalysts, SNCR and SCR denitrification technologies.
3.Flue gas dust removal equipment: It is mainly used to remove gaseous and dusty particulate matter from the flue gas generated in the process of coal combustion and industrial production, including electrostatic precipitators, bag precipitators, electrostatic precipitators, etc.
4.Sewage treatment equipment: mainly used for sewage purification treatment discharged in urban, industrial production and other industries, including biological treatment, physical and chemical treatment, seawater desalination and other technologies.
5.Garbage incinerator: It is mainly used for incineration of harmful substances in the process of garbage sorting and treatment, including conventional incineration equipment and advanced incineration equipment.
6.Soil remediation equipment: mainly used for the remediation and treatment of contaminated soil, including chemical remediation, biological remediation and other technologies.
7.Waste heat equipment: It is mainly used in industrial production, waste gas, waste water, sewage and other processes to generate heat energy, energy saving and emission reduction.
In short, with the growing demand for environmental protection, more and more environmental protection equipment is constantly being developed and promoted, and it is hoped that more technologies and equipment will appear in the future to better protect our environment.
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Hehe, little classmate, so small, so smart, admire, admire.
Fish tank water changer.
Materials: 250ml empty cola bottle, about one meter long soft hose (inner diameter about 7 mm), all-purpose glue.
Punch two holes on the cap of the Coke bottle (slightly smaller than the tube), cut the tube into 70 cm and 30 cm ends, insert one cm into the cap respectively, glue the joint with all-purpose glue, and screw the cap.
Usage: Insert the long end of the tube into the bottom of the fish tank, squeeze the bottle, drain part of the air, pinch the short section of the tube, loosen the bottle, let the water enter the bottle, release the short tube, and the water in the fish tank will flow out.
Principle: Siphon principle.
Note: The liquid level of the outlet must be a little lower than the liquid level of the fish tank.
Advantages: It can minimize the disturbance to the fish, and the dirty water mixed with fish excrement on the bottom can be sucked out without having to take the fish out, and some of the original water can be retained.
It's hard to look at it, but it's actually very easy to do, you can give it a try, original invention! )
Source: Goldfish actually have a long lifespan, but due to improper breeding, such as frequent fright, etc., the lifespan will become very short.
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As a parachute Material: white line, plasticine (purple gauze mud), plastic paper.
Method: Tie 8 white threads evenly on plastic paper, then knead the plasticine into a small figure, and pinch the other end of the thread on the villain.
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Air source water heater: energy saving, environmental protection, high energy efficiency, more suitable for the south of the Yangtze River, the northern region in spring, summer, autumn is also good.
Bamboo fiber electric heater: high energy efficiency ratio, can release beneficial substances to the human body when working Solar charger: small and convenient, especially suitable for outdoor and tourism induction cooker: a good helper in the kitchen.
Range hood: The kind that can be completely removed by the hood.
A pacemaker that weighs only 2 grams.
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