现代污水处理技术，按原理可分为物理处理法、化学处理法和生物处理法三类。
Modern wastewater treatment technology, according to the principle can be divided into physical treatment method, chemical processing method and biological treatment method with three types.
物理水处理法其处理效果总体看不如化学水处理法，其理论研究和应用技术的开发值得专业人员不断探索。
As for physical treatment is not as effective as the chemical treatment, so there is a long way to go for the professionals to further its theoretical study and technical application.
含酚废水的处理方法较多，有物理、化学和生物处理法。
The treatment methods of wastewater contained phenol are more, including physical, chemical and biological treatment method.
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