CAJ | 학술논문

超声波的空化作用能够抑制藻类生长,从保护水体生态系统以及超声波技术本身的特点考虑,低频率、低功率的超声波更适合于水体抑藻应用.实验采用自然水体混合藻种(主要由绿藻门、硅藻门、蓝藻门藻种组成),水样超声波辐照后,进行光照培养,取样检测藻类生长情况,研究了低频率、低功率超声波的抑藻效果及控制参数.结果表明,采用60 kHz、0.24 W·cm~(-2)的超声波,作用时间为1 min,抑藻效果明显,24 h培养后水样OD_400从0.25 cm~(-1)降至0.12 cm~(-1);随着超声波作用功率的增加,抑藻效果增强,但功率超过0.24W·cm~(-2),抑藻效果基本不再增加;超声波施加周期为1次·(2～4) d~(-1),可以起到持续抑藻的效果.
초성파적공화작용능구억제조류생장,종보호수체생태계통이급초성파기술본신적특점고필,저빈솔、저공솔적초성파경괄합우수체억조응용.실험채용자연수체혼합조충(주요유록조문、규조문、람조문조충조성),수양초성파복조후,진행광조배양,취양검측조류생장정황,연구료저빈솔、저공솔초성파적억조효과급공제삼수.결과표명,채용60 kHz、0.24 W·cm~(-2)적초성파,작용시간위1 min,억조효과명현,24 h배양후수양OD_400종0.25 cm~(-1)강지0.12 cm~(-1);수착초성파작용공솔적증가,억조효과증강,단공솔초과0.24W·cm~(-2),억조효과기본불재증가;초성파시가주기위1차·(2～4) d~(-1),가이기도지속억조적효과.
Ultrasonic cavitations can control algal growth. Consider of water ecosystem protection and characteristics of ultrasonic technology, low flequency and low power ultrasonic especially suit to control algal growth in water body. Effect of low frequency and low power ultrasonic radiation on natural blend algal growth was studied. The alga was collected from natural water body. It mainly consists of Cyanophyta, Bacillariophyta and Chlorophyta. The results showed that ultrasonic radiation with frequency of 60 KHz, power of 0.24 W/cm~2 and radiation tiem of lmin, inhibited algal growth significantly. Inhibition of ultrasonic radiation on algal growth enhanced with ultrasonic power increased, inhibition did not increase again When ultrasonic power increased to 0.24 W/cm~2. The effect of algal control was sustainable by ultrasonic radiation with interval period of 2～4 days.