Mussels are stubborn organism attached to solid substrate by byssus threads and caused operational problems in utility of power generating stations. Sole and combined usage of ultrasonic (28 kHz- and 42 kHz- frequencies) and hydrogen peroxide (H2O2) has studied for control of blue mussel larvae and adult stage in seawater condition. A theoretical wo rking model using disinfection (Chick and Watson type) approaches is presented based on helpful results of experiments. This study also demonstrate that the combined treatment (ultra-sonication with H2O2) is overall highly efficient than individual treatment would, but on the basis of exposure time, the ultra-sonication was the most efficient among them. Therefore the development of sole and combined technique might be effective practical mitigation strategy against mussel attachment for water handling facilities.

Abstract
 1. Introduction
 2. Materials and Methods
  2.1. Larva collection
  2.2. Mussel collection
  2.3. Ultrasound treatment
  2.4. Hydrogen peroxide treatment
  2.5. Combined treatment
  2.6. Larvae counting
  2.7. Mussels counting
  2.8. Disinfection model
 3. Results and Discussion
  3.1. Sole ultra-sonication treatment
  3.2. Sole hydrogen peroxide treatment
 4. Conclusion
 Acknowledgment
 REFERENCES

• Md. Niamul Haque(Department of Ocean System Engineering, College of Marine Science, Gyeongsang National University)
• Sung-hyun Kwon(Department of Marine Environmental Engineering, College of Marine Science, Engineering Research Institute (ERI), Gyeongsang National University) Corresponding author