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2021-09-02
危废焚烧厂恶臭废气处理的来源
焚烧厂的废气主要是焚烧厂、预处理厂、甲类临时仓库、乙类临时仓库、卸料站、废液罐区产生的废气。焚烧厂的料坑废气:散装固体废物暂存于固体废物中,在破碎和暂存过程中会产生废气,会产生废气。主要污染物是NMHC、颗粒物、NH3、H2S、HCl、氟化物和气味浓度。
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危废焚烧厂恶臭废气处理的来源
Date﹕2021-09-02|Source:Eclear Environmental

危废焚烧厂生物滤池除臭

危险废弃物具有毒性、反应性、易燃性、易爆性、腐蚀性等危险特性,同时随着经济的增加,危险废弃物的数量越来越多,种类繁多,性质复杂。

由于危险废物焚烧厂存放的危险废物种类繁多复杂,来源行业广泛,产生的废气种类和成分复杂,对环境污染影响大,控制要求高。

危废焚烧厂的废气主要是焚烧厂、预处理厂、甲类临时仓库、乙类临时仓库、卸料站、废液罐区产生的废气。

焚烧厂的料坑废气:散装固体废物暂存于固体废物中,在破碎和暂存过程中会产生废气,会产生废气。主要污染物是NMHC、颗粒物、NH3、H2S、HCl、氟化物和气味浓度。

焚烧车间其他区域的废气:包括卸料大厅、SMP、破碎区、灰渣库、湿渣处理室等。排放厅、SMP、破碎机区在排放和破碎过程中产生废气,污染物为NMHC、颗粒物、NH3、H2S、HCl、氟化物、臭气浓度。湿渣处理室的炉渣在倒入和暂存过程中可能会产生少量废气,主要污染物是NMHC和臭气浓度。灰渣暂时存在于灰渣暂时存放的仓库中。飞灰经密封包装收集后暂时存在于飞灰暂时存放的仓库中和暂时储存过程中可能会有少量颗粒溢出。预处理车间废气:废物在预处理车间的卸料、取样、倒罐、再包装等预处理过程中可能会产生废气。主要污染物有NMHC、NH3、H2S、HCl、氟化物和气味浓度。预处理车间根据废气产生情况分为一般污染区和重点污染区。一般污染区每小时换气1~2次,重点污染区根据危险废物处理情况要求换气频率更高。重点污染区主要是采样和缓冲区、小实验室、再包装区、实验室、再包装区、抽水箱泵送区、操作室,采用吸气罩收集,抽水箱泵送区抽水箱泵接排气管局部排气的一般污染区是预处理现场内的其他区域,采用现场负压排气。

临时仓库废气:包装废物暂时存在临时仓库,废物在卸货和临时仓库过程中密封,但考虑到桶盖和包装袋可能密封不严,少量废气挥发,主要污染物为NMHC。

卸料站废气:主要是卸料作业时,罐车内液体废物中有少量污染物挥发,产生卸料废气,主要污染物为NMHC、NH3、H2S、HCl、氟化物、臭气浓度。

废液罐区呼吸废气:每个废液罐由带压力控制的氮气密封装置保护。当罐内液位因卸载而上升或温度变化而变化时,压力控制装置会吸入氮气并排出废气,废气由管道排出,产生罐内呼吸废气。主要污染物是NMHC。

羿清环保针对以上部位,提供以生物除臭工艺为核心的废气处理系统,确保废气处理达标排放。采用生物除臭工艺,处理效果稳定,无二次污染,常温反应安全,是危废焚烧厂恶臭废气处理的优选工艺之一。

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