1972年春,镇江焦化厂在毛主席革命路线指引下,本着“自力更生,艰苦奋斗”的精神,主要依靠本厂的基建和机修力量,尽可能利用废旧材料,与科学研究单位相结合,建成了一套离心提取机废水脱酚生产装置。镇江焦化厂濒临长江,全厂含酚废氨水直接外排江中,雨季距离厂总排水口200米 In the spring of 1972, under the guidance of Chairman Mao’s revolutionary route, Zhenjiang Coking Plant, in the spirit of “self-reliance and hard work”, mainly relied on the strengths of its own infrastructure and mechanics to make use of waste materials as much as possible, in conjunction with scientific research units. A set of equipment for the dephenolification of wastewater from centrifugal extractors was built. The Zhenjiang Coking Plant is adjacent to the Yangtze River, and the waste water containing phenol is discharged directly into the river. The rainy season is 200 meters away from the factory’s total water outlet.