超声波设备可用于许多不同的行业，例如电气和电子工业中的机械零件; 玉石加工、钟表、光学、机械等精密行业; 汽车工业; 橡胶工业; 奶酪，酿造; 航空业; 印刷; 机械表面处理行业; 制药行业; 机械工具、环保行业等各类行业。 本文主要介绍超声波在环保行业中的应用。
ultrasonic equipment can be applied to various industries, such as electronic and electrical industry mechanical components; precision industries such as jade processing, watches, optics, and machinery; the automotive industry; rubber industry; cheese and brewing industry; *iation industry; printing industry; mechanical surface treatment industry; the pharmaceutical industry; various industries such as mechanical tools and environmental protection. this article mainly introduces the application of ultrasound in the environmental protection industry.
超声波除尘和净水。
ultrasonic dust removal and water purification
气体中的悬浮固体（分散的固体颗粒或液体颗粒如灰尘、烟雾、雾气等）在气体中，当受到适当能量的超声波作用时，灰尘颗粒立即形成球形冷凝并落下，球形冷凝过程非常复杂。
suspended solids in gas (dispersion systems of solid or liquid particles such as dust, smoke, mist, etc.),when subjected to appropriate energy ultrasound, immediately undergo spherical condensation and descent, and this spherical condensation process is very complex.
当气体被超声波照射时，振动气体使尘埃颗粒一起振动，使不同大小的尘埃颗粒彼此靠近。 同样，在除尘器管中产生的驻波在节点处的振动速度为零，最大辐射压力为零，这也促进了粉尘在节点处的积聚。 累积的程度由振动的时间和声音的强度决定。 在粒子之间流动的气体的静压在粒子之间变小，从而产生引力。
after being irradiated by ultrasound, the vibrating gas causes dust particles to vibrate together, bringing dust of different sizes closer to each other. the standing w**e generated in the same dust removal tube, with zero vibration velocity at the w**e node and maximum radiation pressure, also promotes the accumulation of dust at the node. the degree of agglomeration is determined by the vibration time and sound intensity. the static pressure of the gas flowing between particles decreases, resulting in a gr**itational force.
粉尘直径一般小于10-15pm，冷凝和沉淀效果较好，粉尘直径较大，其振动幅度会减小，不易凝结。
ultrasonic dust removal has a dust diameter of generally less than 10-15pm, and has a good agglomeration and precipitation effect. as the dust diameter increases, the amplitude of its vibration will decrease, *it difficult to agglomerate.
超声波在环保中的另一个应用是通过超声波和臭氧对废水进行联合处理，可以净化水质，提高效率。 经过一分钟的处理，水可以破坏100%的大肠杆菌和病毒，95%的磷酸盐和72%的氮化物，72小时后，没有发现细菌和病毒再生。
another application of ultrasound in environmental protection is the combined treatment of wastewater through ultrasound and ozone, which can purify water quality and improve efficiency. after one minute of treatment, the water can destroy 100% of escherichia coli and viruses, 95% of phosphates, and 72% of nitrides. however, after being left for 72 hours, no bacteria or viruses h**e been found to reproduce.