Ultrasonic Water Treatment Technology Services

BOC Sciences is committed to water treatment technology development and application with a team of water quality experts as its core. We are a high-tech environmental protection company that integrates environmental protection high-tech research and development, technology optimization, water analysis and testing, water quality assessment, and water treatment agent testing. We can provide you with ultrasonic technology services and develop exclusive solutions for your projects.

Ultrasonic Technology Principle

Ultrasonic waves in the process of propagation there is a positive and negative pressure alternating cycle, and the existence of this cycle acts on the medium molecules are expressed as alternating compression and stretching effect. When the energy of ultrasonic waves reaches a certain value, the liquid medium will fracture, producing cavities and a large number of microbubbles, microbubbles in a relatively short period of time will expand into cavitation bubbles, these cavitation bubbles will undergo a series of shock, growth, contraction and collapse processes, this series of phenomena is called the cavitation effect of cavitation bubbles. Ultrasonic is mainly through the cavitation effect triggered by high temperature, supercritical, free radical and mechanical effects to achieve the purpose of degradation of organic matter.

Fig. 1 Water treatment using ultrasonic cavitation. ^[1]

Ultrasonic Technology Pretreatment Services

• Algae and algal toxin removal

Ultrasound for algae are according to the first level reaction kinetics, and have a good removal effect, high frequency can accelerate the reaction speed of algae removal.

• Humic substances removal

Humus removal reduces both the amount of disinfectant and the risk to drinking water.

• Biological pretreatment enhancement

Ultrasonic cavitation accelerates the transfer of substances in the bioreactor, a process that is very beneficial for the transfer of reaction substrates into the active site of enzyme catalysis and products into the medium.

Ultrasonic Wastewater Treatment Services

• Dye wastewater treatment

Dye wastewater can be treated using ultrasound technology. By adjusting the ultrasonic time and reaction concentration, the degradation efficiency of the wastewater can be improved.

• Phenol-containing wastewater treatment

The pH of the wastewater can be adjusted first, and different frequencies of ultrasound can be used to degrade the phenol-containing wastewater to improve the degradation rate of the phenols in the wastewater.

• Benzene wastewater treatment

Ultrasonic technology can treat benzene, ethylbenzene, styrene and o-chlorotoluene solutions to achieve the purpose of wastewater treatment.

• Treatment of organic pesticide wastewater

Pesticide analysis is first performed on the wastewater, and then the phosphorus-containing pesticide wastewater is induced to degrade in the water by using ultrasonic technology.

• Sludge treatment

Ultrasonic technology destroys the floc structure and cell wall of sludge, leaching out intracellular substances and accelerating the sludge stabilization process.

Optimization of Treatment Conditions by Ultrasonic Technology

• Adjusting the frequency and intensity of ultrasound

Adjust the frequency of ultrasound to the appropriate hertz and increase the intensity of ultrasound to a great value for better wastewater treatment.

• Adjustment of temperature

Low vapor pressure and pressure are the preferred conditions for ultrasound to perform acoustic-chemical reactions.

• Choice of medium for reaction

Liquid media with high vapor pressure, low concentration and low surface tension should be selected when considering reaction media.

• pH adjustment

Ultrasonic technology to treat organic pollutants in water mainly relies on the role of free radicals generated in the water, so that the pH of raw water will have a certain impact on the reaction. Since ultrasonic degradation occurs inside the cavitation bubble or at the gas-liquid interface of the cavitation bubble, the pH adjustment of the solution should be as much as possible to facilitate the existence of organic substances in the form of neutral molecules and easy to volatilize into the inner core of the bubble.

• Addition of reinforcing substances

To increase the efficiency of ultrasound, usually the reaction is fed with a gas (e.g. air or oxygen) adding environmentally friendly iron powder or metal ions. Due to the cavitation effect of ultrasonic waves, the added gas produces active substances in the water, which enhances the treatment effect on organic substances.