Does bitcoin account need ID verification
Publish: 2021-05-17 01:28:00
1. You can go to the domestic bitcoin trading platform to register an account. Now you need real name authentication. If you want to store bitcoin, there are many online wallets. You can register and store bitcoin in it. Of course, you can also download a bitcoin wallet client. If you know the technology, it is recommended that you do this, which will be safer. If you don't know the technology, you can register a wallet online.
2.
1. Open a browser to search for "bitcoin"
3. It is suggested that you do not give the bank card handled with your ID card to others. If the other party does something illegal with this bank card, it is likely to involve you. ID card and bank card are important documents with personal information. It's better not to lend them to others.
4. Just provide ID number phone.
5. If you want to register an account in coinbase, you also need to have a bank card supporting US dollars, such as visa and MasterCard. You can buy bitcoin by recharging US dollars on the platform. Coinbase requires users to provide access to the webcam when they register. It requires users to turn on the webcam to take their own photos, and then submit them to the server
6.
Yes, coinbase requires users to provide access rights to the webcam when they register. It requires users to turn on the webcam to take their own photos and submit them
7. Bitcoin is now banned from trading in China. This virtual currency is used to cut speculators' money. Why do people believe it..
8. Bitcoin is a virtual currency. You only need to have a storage address. If you are playing on a trading platform, for example, I'm in fire coin, you need to verify your identity, bind your mobile phone, email, etc.
9. ① Spray water. This is one of the most commonly used physical methods. Foam is reced by spraying water or water droplets to break bubbles that float on the surface. The dispersed sludge particles partially recovered the sedimentation performance, but filamentous bacteria still existed in the mixed liquid, so the foam phenomenon could not be fundamentally eliminated.
2. Add defoamer. Bactericides with strong oxidizing properties, such as chlorine, ozone and peroxide, can be used. There are also commercial reagents proced by polyethylene glycol and silicone, and mixed reagents of ferric chloride and copper pickling solution. The action of the agent can only rece the growth of the foam, but can not eliminate the formation of the foam. However, the widely used bactericides generally have negative effects, because excessive or improper dosing position will greatly rece the number of flocculent bacteria and the total biomass in the reaction tank< (3) rece the sludge age. Generally, the residence time of sludge in aeration tank is reced to inhibit the growth of Actinomycetes with long growth period. It has been proved by practice that when the sludge residence time is 5~6 D, the growth of Nocardia bacteria can be effectively controlled, so as to avoid the foam problem arising from it (8, 9). However, there are many inapplicable aspects to rece the sludge age: when nitrification is needed, the sludge residence time needs at least 6 days in cold season, which is in contradiction with this method; In addition, microthrix parvicella and some filamentous bacteria were not affected by sludge age
4. Return the supernatant of anaerobic digestion tank. Experiments have shown that the method of returning supernatant from anaerobic digestion tank to aeration tank can control the formation of bubbles on the surface of aeration tank. The main function of the supernatant of anaerobic digestion tank is to inhibit Rhodococcus bacteria, but this method has not achieved the same success as the laboratory in several wastewater treatment plants. Because the supernatant of anaerobic digestion tank contains high concentration of aerobic substrate and ammonia nitrogen, they will affect the final effluent quality, so they should be used cautiously
5. Adding special microorganism. Some studies have suggested that some special strains can eliminate the activity of Nocardia, including protozoa, nephromorpha, etc. In addition, increasing the number of predatory and antagonistic microorganisms can control some of the foam bacteria [5].
6 selector. The selector is to create various reaction environments (oxygen, organic load or sludge concentration, etc.) to select the priority microorganisms and eliminate other microorganisms. It has been reported that aerobic selector can control M. parvicella to a certain extent, but has no significant effect on Nocardia; The anoxic selector had a control effect on Nocardia, but had no effect on M. parvicella Hy6969132)
bubble problem many reasons, depending on the specific circumstances, in addition to the reasons mentioned above, the following may also cause a large number of foam.1. water phosphate content is too high will also proce
2. water contains the surface active substances
3., filamentous bacteria excessive growth will lead to bacterial gel carrying a large amount of air, thus forming stable on the water surface. It is difficult to remove the dross froth. It has been proved that excessive growth of filamentous bacteria is the main cause of foams formation.
4. if the waste water contains excessive fatty acids, the sludge retention time of the system is longer and the sludge reflux rate is low. The lower F/M ratio will cause excessive growth of filamentous bacteria, resulting in foam proction.
elimination and control:
commonly used are: surface high speed flow injection.
control of sludge residence time
increase of reflux ratio and F / M ratio
use of defoamer
the above problems are either low efficiency or high cost
at present, there is a kind of process called FFO, which can be used for reference from process design
FFO operation technology is the abbreviation of nutrient and deficiency technology, According to the difference of growth kinetics between filamentous bacteria and common bacteria, the two-stage live fouling method is designed (you should know how to do it)
the primary is high F / m, about 0.8, low reflux ratio is about 0.06, the secondary is low f / m, about 0.2, high reflux ratio is about 0.21
ha, only to control the growth of old silk, The problem is solved.
foam is divided into two main types: chemical foam and biological foam.
chemical foam is formed by the washing and stripping of aerated detergent and some instrial surface materials. With the increase of activated sludge, a large number of detergents or surface substances will be absorbed and decomposed by microorganisms, and the foam will graally disappear. Defoamer can be added, or powdered activated carbon can be added, which can not only absorb some active agents and harmful substances, but also provide biological carrier and increase biomass
effluent from treatment plants or floating scum with incomplete oil and lipids is easy to proce biological foam, which is mainly caused by Nocardia. Check your steam flotation tank to see if the air flotation tank has not been adjusted properly (including the steam water ratio, whether the releaser is blocked, whether the dosing system and water inflow are too large). The key is to get rid of the oil.
2. Add defoamer. Bactericides with strong oxidizing properties, such as chlorine, ozone and peroxide, can be used. There are also commercial reagents proced by polyethylene glycol and silicone, and mixed reagents of ferric chloride and copper pickling solution. The action of the agent can only rece the growth of the foam, but can not eliminate the formation of the foam. However, the widely used bactericides generally have negative effects, because excessive or improper dosing position will greatly rece the number of flocculent bacteria and the total biomass in the reaction tank< (3) rece the sludge age. Generally, the residence time of sludge in aeration tank is reced to inhibit the growth of Actinomycetes with long growth period. It has been proved by practice that when the sludge residence time is 5~6 D, the growth of Nocardia bacteria can be effectively controlled, so as to avoid the foam problem arising from it (8, 9). However, there are many inapplicable aspects to rece the sludge age: when nitrification is needed, the sludge residence time needs at least 6 days in cold season, which is in contradiction with this method; In addition, microthrix parvicella and some filamentous bacteria were not affected by sludge age
4. Return the supernatant of anaerobic digestion tank. Experiments have shown that the method of returning supernatant from anaerobic digestion tank to aeration tank can control the formation of bubbles on the surface of aeration tank. The main function of the supernatant of anaerobic digestion tank is to inhibit Rhodococcus bacteria, but this method has not achieved the same success as the laboratory in several wastewater treatment plants. Because the supernatant of anaerobic digestion tank contains high concentration of aerobic substrate and ammonia nitrogen, they will affect the final effluent quality, so they should be used cautiously
5. Adding special microorganism. Some studies have suggested that some special strains can eliminate the activity of Nocardia, including protozoa, nephromorpha, etc. In addition, increasing the number of predatory and antagonistic microorganisms can control some of the foam bacteria [5].
6 selector. The selector is to create various reaction environments (oxygen, organic load or sludge concentration, etc.) to select the priority microorganisms and eliminate other microorganisms. It has been reported that aerobic selector can control M. parvicella to a certain extent, but has no significant effect on Nocardia; The anoxic selector had a control effect on Nocardia, but had no effect on M. parvicella Hy6969132)
bubble problem many reasons, depending on the specific circumstances, in addition to the reasons mentioned above, the following may also cause a large number of foam.1. water phosphate content is too high will also proce
2. water contains the surface active substances
3., filamentous bacteria excessive growth will lead to bacterial gel carrying a large amount of air, thus forming stable on the water surface. It is difficult to remove the dross froth. It has been proved that excessive growth of filamentous bacteria is the main cause of foams formation.
4. if the waste water contains excessive fatty acids, the sludge retention time of the system is longer and the sludge reflux rate is low. The lower F/M ratio will cause excessive growth of filamentous bacteria, resulting in foam proction.
elimination and control:
commonly used are: surface high speed flow injection.
control of sludge residence time
increase of reflux ratio and F / M ratio
use of defoamer
the above problems are either low efficiency or high cost
at present, there is a kind of process called FFO, which can be used for reference from process design
FFO operation technology is the abbreviation of nutrient and deficiency technology, According to the difference of growth kinetics between filamentous bacteria and common bacteria, the two-stage live fouling method is designed (you should know how to do it)
the primary is high F / m, about 0.8, low reflux ratio is about 0.06, the secondary is low f / m, about 0.2, high reflux ratio is about 0.21
ha, only to control the growth of old silk, The problem is solved.
foam is divided into two main types: chemical foam and biological foam.
chemical foam is formed by the washing and stripping of aerated detergent and some instrial surface materials. With the increase of activated sludge, a large number of detergents or surface substances will be absorbed and decomposed by microorganisms, and the foam will graally disappear. Defoamer can be added, or powdered activated carbon can be added, which can not only absorb some active agents and harmful substances, but also provide biological carrier and increase biomass
effluent from treatment plants or floating scum with incomplete oil and lipids is easy to proce biological foam, which is mainly caused by Nocardia. Check your steam flotation tank to see if the air flotation tank has not been adjusted properly (including the steam water ratio, whether the releaser is blocked, whether the dosing system and water inflow are too large). The key is to get rid of the oil.
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