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基于体外清洗的核桃壳油田污水过滤技术

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摘要 搅拌式核桃壳过滤技术反洗能力较弱,滤料再生不彻底而造成过滤精度不高,除油率仅在50%左右。体外清洗过滤技术应用野生山核桃壳作为主要过滤介质,利用核桃壳亲水憎油特性,采用深床过滤机理,可以有效去除油和悬浮固体颗粒。现场试验表明,体外反洗除油效率能达到80%以上,比搅拌式核桃壳过滤器处理精度提高30%-40%;滤料采用罐体内冲洗和体外循环清洗的联合反洗方式,使滤床能高效反洗排污,使滤料彻底再生,能够保持处理水质长期稳定达标。
作者 彭松水
出处 《油气田地面工程》 2015年第11期52-53,共2页 Oil-Gas Field Surface Engineering
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