卤代POPs废物的处理方法及系统

Method and system for processing wastes of halogenated POPs (Persistent Organic Pollutants)

Abstract

本发明提供一种卤代POPs废物的处理方法及系统。该方法包括:在卤代POPs废物中,添加催化剂,其中所述催化剂为碱金属氧化物和/或碱土金属氧化物;在250℃-600℃的温度条件下,在环境氧气含量为小于或等于1%的气氛条件下,进行脱卤反应0.5小时-5小时;在缺氧气氛条件下,对经过脱卤反应处理后的废物进行冷却处理,将废物冷却至150℃以下,完成对废物的处理。同时,本发明还提供一种实现该方法的系统。本发明技术方案可有效对卤代POPs废物进行脱卤处理,具有处理效率好,处理过程容易控制,成本低廉的特点,可广泛应用于工业化的卤代POPs废物处理。
The invention provides a method and a system for processing wastes of halogenated POPs (Persistent Organic Pollutants). The method comprises the steps of adding catalysts into the wastes of the POPs, wherein the catalysts are alkali metal oxides and/or alkaline earth metal oxides; performing dehalogenation for 0.5-5 hours at the temperature of 250-600 DEG C under an atmosphere condition that the content of oxygen in the environment is less than or equal to 1%; and cooling the wastes after dehalogenation under an anoxic atmosphere condition, and cooling the wastes to below 150 DEG C, thus finishing treatment of the wastes. Meanwhile, the invention also provides a method for implementing the method. Through the technical scheme of the method and the system, the wastes of the halogenated POPs can be effectively subjected to dehalogenation, processing efficiency is good, the processing process is easily-controllable, the cost is low, and the method and the system are applicable to treatment of the wastes of the industrial POPs.

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