摘要
基于目前国家对煤化工企业环保排放逐步提高的现实要求,结合炼油、化工项目"清污分流、污污分流、分质处理"的设计原则,首次在煤化工项目上提出煤化工污水分系列处理方案。针对粉煤气化灰水低碳高氮的水质特性,通过核心参数优化和多级流程配置,以软化澄清-生物深度脱氮工艺为核心的处理技术,实现硬度、氨氮、总氮等污染物的高效脱除和长周期稳定运行,为后续分盐和零排放提供有力保障。
As the national environmental protection requirements for coal chemical companies are increasing gradually,treatment of coal chemical sewage in series is proposed for the first time in coal chemical projects combining with the design principles of "cleaning and sewage separation,pollutions separation and properties classified treatment" in refining and chemical projects Aiming at the water quality characteristics of pulverized coal gasification ash-water with low carbon and high nitrogen,the treatment technology with softening and clarification-biological deep denitrification process as the core is adopted to achieve efficient removal of hardness,ammonia nitrogen,total nitrogen and other pollutants from the sewage and realize long-cycle stable operation through core parameters optimization and multi-stage process configuration.This provides strong guarantee for subsequent salt separation and zero discharge.
作者
薛旭
王雪清
Xue Xu;Wang Xueqing(SINOPEC Engineering Incorporation,Beijing,100101;SINOPEC Dalian Research Institute of Petroleum and Petrochemicals,Dalian,Liaoning,116045)
出处
《石油化工安全环保技术》
CAS
2021年第6期42-47,I0003,共7页
Petrochemical Safety and Environmental Protection Technology
关键词
煤化工污水
气化灰水
分质处理
软化澄清
生化脱氮
coal chemical sewage
gasification ash-water
properties classified treatment
softening and clarification
biochemical denitrification
作者简介
薛旭,女,1990年毕业于湖南衡阳工学院给水排水专业,工学学士,主要从事环境工程设计工作,已发表论文5篇,现任技术副总监,正高级工程师。电话:010-84877000,E-mail:xuexu@sei.com.cn。
