scispace - formally typeset
Search or ask a question

What is the role of plasma in removing the turbidity of treated water? 


Best insight from top research papers

Plasma plays a crucial role in removing the turbidity of treated water. The use of plasma treatment apparatus helps in enhancing the treatment efficiency of contaminated water and increasing the utility of generated ozone gas by plasma . Plasma-based treatments, such as plasma jet, have been found to be effective in water cleansing. The plasma jet, generated using a gas mixture of argon and oxygen, produces reactive oxygen species in the solution, leading to full water decontamination . In a water treatment apparatus using plasma, the outlet unit of a quartz tube is formed in the shape of a nozzle, allowing the plasma discharged gas to be sprayed at a high speed and supplied into the water, resulting in a more effective sterilizing effect . Additionally, a plasma water treatment apparatus with a gas-liquid mixing unit disperses air in the to-be-treated water in a microbubble form, increasing the reaction efficiency of microbubbles and promoting active contact with contaminants .

Answers from top 4 papers

More filters
Papers (4)Insight
Patent
Hong Yong Cheol, Choi Ha Young 
26 Jul 2017
7 Citations
The provided paper does not mention the role of plasma in removing the turbidity of treated water.
The provided paper does not mention the role of plasma in removing the turbidity of treated water.
The provided paper does not mention the role of plasma in removing the turbidity of treated water. The paper is about a plasma treatment apparatus for water purification.
The provided paper does not mention the role of plasma in removing the turbidity of treated water.

Related Questions

Is singelt oxygen generated in spark and glow discharge treated plasma activated water?5 answersYes, singlet oxygen is generated in both spark and glow discharge treated plasma activated water. The concentration of singlet oxygen in the water decreases over time, but it is initially present at a concentration of 22.4 ± 2.5 (mmol eq)/L. Different types of plasma activated water (PAW) generated by spark and glow discharges show similar antimicrobial efficacy, despite having different reactive oxygen species (ROS) and reactive nitrogen species (RNS) profiles. Both types of PAW contain hydrogen peroxide, nitrite, and nitrate, which are reactive species that contribute to their antimicrobial activity. The specific reactive species generated in PAW depend on the discharge mechanism and liquid phase chemistry process. Spark discharge PAW contains H2O2 and NO3-, while glow discharge PAW contains NO2- and NO3-. The production of singlet oxygen in PAW is influenced by the presence of oxygen in the reaction system, with NO2- and NO3- becoming the major products when O2 is incorporated.
How to treat wounds with plasma?4 answersCold atmospheric plasma (CAP) has been shown to have antibacterial activity and promote cell proliferation, differentiation, and migration in vitro. CAP can eliminate refractory skin bacteria in vitro and positively affect wound healing in a rat scalding wound model. Direct CAP irradiation of low intensity and short duration did not lead to skin erythema or edema. The use of a combination of a wound-rinsing solution and cold atmospheric plasma has been proposed for treating wounds. Plasma flux treatment has been found to induce anti-inflammatory macrophages and promote the healing process in burn wounds, partly through the decrease in macrophage NF-κB. Plasma flux treatment shows potential for the treatment of burn wounds.
How does turbidity affect fish in rivers?4 answersTurbidity affects fish in rivers by reducing their ability to detect food, predators, and conspecifics. It can lead to risk-averse behavior, as fish take longer to leave a refuge, locate food, and consume less food in turbid conditions. Turbidity also affects predator-prey interactions, as prey survival, particularly of invasive species, is lower in turbid water in the presence of predators. Decreased water clarity caused by turbidity can affect the predation efficiency of native piscivores and increase the abundance of alien fish. Turbidity alters collective movement in fishes, leading to decreased collective behavior, increased interfish distances, and changes in group structure. Turbidity is strongly correlated with fish biomass, with salinity and turbidity being important seasonal drivers of fish abundance in certain communities. Turbidity levels up to 160 NTU do not affect the feeding rates of certain fish species, indicating their lower sensitivity to turbidity.
How are the reactive oxygen and nitrogen species used for plasma-based water treatment.?5 answersReactive oxygen and nitrogen species (RONS) are used in plasma-based water treatment for purification and chemical processing. Plasma production or injection in liquid water allows for the introduction of advanced oxidation processes to remove contaminants and mineralize them in the solution. The plasma-water interaction at the boundary layer or interaction zone generates a range of RONS that attack and degrade contaminants. Different plasma-forming gases, such as CO2, air, helium (He), and argon (Ar), can be used to generate specific RONS in the water. These RONS include hydrogen peroxide (H2O2), nitrite (NO2-), nitrate (NO3-), and other reactive species. The concentration and efficiency of RONS production vary depending on the plasma jet and gas used. By controlling the plasma jet and gas parameters, such as flow rate and frequency, the production of specific RONS, such as H2O2 and NO2-, can be selectively increased or decreased in the treated water. This selective production of RONS offers potential applications in biomedical and water treatment processes.
What is turbidity of water?5 answersTurbidity is an optical quality of water caused by suspended solids that give the appearance of ‘cloudiness'. It is a measure of the clarity of water and is determined by the amount of light scattered by particles present in the water. Turbidity can be an indication of poor water quality and can mask the presence of parasites such as Cryptosporidium. It is recommended by the World Health Organisation (WHO) that turbidity should not exceed a level of 1 Nephelometric Turbidity Unit (NTU) before chlorination. Turbidity can be used as a property to represent the "sum" of other contaminants in water. It is a useful parameter in the design of water networks and can be easily measured. A turbidity meter is a device used to measure turbidity by emitting light and detecting the scattered light at specific angles.
How does turbidity of water affects to human?2 answersTurbidity of water can affect human health indirectly by indicating poor water quality and potentially masking the presence of parasites such as Cryptosporidium. Increased turbidity due to phytoplankton algal growth can impair visually based mate choice in fishes, affecting sexual selection. Monitoring water turbidity is important for ensuring water quality for human consumption. Water turbidity testing is necessary in the water treatment process to establish standards for water clarity. Human activities causing eutrophication and increased water turbidity can have consequences for fish visual communication and sexual selection.