inactivation of pseudomonas aeruginosa and methicillin-resistant staphylococcus aureus in an open water system with ozone generated by a compact, atmospheric dbd plasma reactor - portable ozone generator

Ozone is a well.
A known disinfectant, used as a substitute for chlorine in many applications, including water purification.
However, due to high power consumption and expensive, bulky equipment associated with ozone generation, the utility of ozone in water purification is limited.
The effectiveness of a light, compact surface media barrier discharge (SDBD)
The reactor, as an ozone generator, inactivated P. green pus and amoxicillin
S. aureus (MRSA)
In an open water system.
Provides experimental details of ozone generation techniques, mixing methods, ozone concentrations in air and water, and the input energy required to produce sufficient ozone concentrations in contaminated open water systems for bacterial inactivation.
Specifically, the active plasma module (APM)
Reactor Systems with a scale of 48 cm³, a weight of 55 grams, and a maximum ozone yield of 68.
In atmospheric conditions, 6g/KWh is used together with air pumps and diffusion stones as a source of ozone for mixing ozone in water. Over 4-
Log reduction in P
In 4 minutes, the concentration of P. M. was reached with 0.
1 mg/L ozone concentration in the open water system using 8. 8u2009±u20091.
48 j input energy. Also, over 5-
Within 2 minutes, the logarithmic decrease of the concentration of S. aureus was achieved with 0.
04 mg/L ozone concentration in the open water system using 4. 4u2009±u20090.
74 u2009 j input energy.
Despite the great development of water disinfection technology over the years, water transmission diseases continue to occur.
During the period from 2011 to 2012, there were 431 diseases, including 14 fatal diseases related to drinking water and 1,788 diseases involving recreational water, reported in the United States.
Chlorine disinfection has become the most popular and accepted disinfection technology for drinking water and recreational water.
However, chlorine is not fully effective for some microorganisms, including cysts.
In addition, it reacts with organic matter to form a group of chemical substances that are potentially carcinogenic, called trihalmethane (THMs).
These shortcomings make chlorine less popular as a disinfectant.
Ozone is an attractive alternative to disinfection of free chlorine and chloramine;
It has a higher thermodynamic oxidation potential, lower sensitivity to organic substances, better tolerance to pH changes, while retaining the ability to kill bacteria, fungi, viruses, and spores and cysts.
THM formation in ozone treatment was also reduced by 98% compared to chlorine treatment.
Ozone oxidation of water with a high concentration of Bromo does lead to the formation of poor Bromo disinfection by-products, however, unless drinking water is produced through seawater desalination, odor oxidation can usually be applied without considering these by-products.
Another benefit of ozone is more effective than chlorine, which is a process of removing organic matter from natural water during drinking water treatment.
High cost of installation and maintenance, large volume of equipment, half short
The life of ozone in water limits the use of ozone disinfection.
Over the past decade, it has become increasingly popular around the world and is considered one of the best alternatives to chlorine disinfection in water.
A plasma reactor with discharge or media blocking discharge (DBD)
It is the most common ozone generation device at present.
However, they are limited due to high power consumption, low ozone production and high pricesBulky equipment
Plasma produces ozone by ionising oxygen in the surrounding gas.
In particular, the DBD equipment allows low-temperature plasma to produce a large amount of ozone in the air.
When the potential difference is applied to two electrodes on the opposite side of the medium, a DBD plasma is generated (insulator)material.
This leads to the formation of filament microdischarge and ionization of the surrounding gas.
Therefore, ozone generation is an inherent feature of the DBD plasma device when it works in the air.
Our panel recently reported on a detailed study to correlate different parameters such as voltage, frequency and material properties applied with the use of DBD in atmospheric air to produce ozone and its efficacy in killing surface microorganisms.
In this paper, we use a compact, lightweight DBD plasma generator to test its ability to purify water in an open system.
It operates under atmospheric conditions and uses air as a feed gas.
This reduces the additional cost associated with controlled gas conditions such as pressure, temperature and oxygen content, making it a relatively cheap ozone generation method.
We used an open system to see if it was possible to eliminate the large closed mixing tanks used by many systems to further reduce the cost and size of ozone treatment equipment.
Our team has previously used a similar plasma generator to kill surface microorganisms, paying special attention to the effects of power and the effects of ozone.
There are multiple reports dedicated to the dynamics of microbial ozone inactivation, many of which are reported to be used and/or. In 2009, Zuma .
Ozone is generated using a corona discharge in an oxygen flow and is mixed in water using a impactor.
Lezcano also studied inactivation in water. and Pérez . .
However, the details of the ozone generation system are not given in these papers.
In addition, sufficient information could not be found to indicate the minimum ozone concentration required for microbial inactivation and the associated energy consumption for ozone production.
These reports and other reports will be improved by providing more complete experimental details of the ozone concentration measured in water and the corresponding exposure time and input energy.
This study establishes the effectiveness of a compact, lightweight DBD plasma reactor to produce ozone and purified water in an open system with air as an oxygen source.
We determined the minimum ozone concentration required for inactivation and S. aureus as well as the exposure time and input energy.
In addition, this is to fill the gaps in knowledge related to ozone generation technology, ozone mixing process details, the ozone concentration in water and the power to achieve bacterial inactivation are required in the existing literature on the kinetics of bacterial inactivation in water.