电石法合成氯乙烯工序废水废酸废碱的综合治理新技术

Comprehensive treatment technology for of waste acid and alkali from vinyl chloride process by calcium carbide method

通过增加盐酸深脱析装置和含汞废水深度处理装置,使含汞废酸经过常规脱析和稀酸深度脱析后,达到含汞废酸零出售,合成氯乙烯工序废水,碱洗塔循环废碱进入含汞废水处理装置,处理后水质符合国家排放标准,用于乙炔车间,实现废水,废酸,废碱的零排放。

By adding hydrochloric acid deep desorption device and mercury-containing wastewater deep treatment device,mercury-containing waste acid can reach zero sale after conventional desorption and dilute acid deep desorption,and the waste water from the synthetic vinyl chloride process can be recycled into the mercury-containing wastewater treatment device.The treated water meets the national discharge standard and is used in acetylene workshop to realize wastewater,waste acid and waste alkali zero emission.