碎煤加压气化废水处理与回用工艺
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摘要
通过水质分析,揭示了碎煤加压气化废水中存在的主要污染物成分和含量,以及COD_(Cr)构成和处理难度;结合废水中的污染物和COD_(Cr)构成,提出了调节-隔油-气浮-厌氧-A/O-加药气浮-臭氧-BAF-过滤吸附的废水处理工艺;根据废水中含盐量、无机离子组成,提出了软化除硬-过滤-超滤-反渗透的回用水处理工艺。探讨了在工艺设计过程中应注意的问题,提出了改善废水可生化性能、消除硝化反硝化毒性抑制、实现废水达标和回用的措施。
Through water quality analysis, the components and content of main pollutants in conny pressure gasification wastewater as well as its COD_(Cr)composition and treatment difficulty were revealed. According to the pollutants and COD_(Cr)composition of the said wastewater, a combined process of adjustion-oil separation-air flotation-anaerobic-A/O-chemicals feed air flotation-ozone-BAF-filtration adsorption, was proposed. According to the salinity and inorganic ions composition of the wastewater, water recycling processes such as: soften hardness removal, filtration, ultrafiltration, reverse osmosis, were pointed out. Problems that should be paid attention to during the process design were discussed, and then, measures that could improve biodegradability, eliminate nitrification and denitrification toxicity inhibition, ensure wastewater quality reach the discharge or reuse standard, were put forward.
Through water quality analysis, the components and content of main pollutants in conny pressure gasification wastewater as well as its COD_(Cr)composition and treatment difficulty were revealed. According to the pollutants and COD_(Cr)composition of the said wastewater, a combined process of adjustion-oil separation-air flotation-anaerobic-A/O-chemicals feed air flotation-ozone-BAF-filtration adsorption, was proposed. According to the salinity and inorganic ions composition of the wastewater, water recycling processes such as: soften hardness removal, filtration, ultrafiltration, reverse osmosis, were pointed out. Problems that should be paid attention to during the process design were discussed, and then, measures that could improve biodegradability, eliminate nitrification and denitrification toxicity inhibition, ensure wastewater quality reach the discharge or reuse standard, were put forward.
引文
[1]徐海龙.碎煤加压气化废水的处理工艺及技术进展[J].化工管理, 2015,(15):205-206.
[2]方芳,吴刚,韩洪军,等.我国煤化工废水处理关键工艺解析[J].水处理技术, 2017, 43(6):37-40.
[3]于海,孙继涛,唐峰.新型煤化工废水处理技术研究进展[J].工业用水与废水, 2014, 45(3):1-5.
[4]曹迎军.煤化工废水处理工程的调试运行[J].工业用水与废水, 2014, 45(4):38-41.
[5]姬鹏霞,杨建,刘志辉. SBR法处理鲁奇加压气化废水存在问题的探讨及措施[J].山东科学, 2005, 18(4):83-85.
[6]岳子明,安洪光,刘俊峰,等.强化混凝处理碎煤加压气化废水生化出水中有机物的实验研究[J].应用化工, 2014, 43(2):209-211.
[7]尚慧娟,王娟,范迪.焦化废水处理实验研究[J].青岛理工大学学报, 2013, 34(5):71-76.
[8]童君.开发区工业废水处理厂提标改造工程实例[J].工业用水与废水, 2016, 47(1):63-66.
[9]许佩瑶,侯素霞,赵建国.絮凝-Fenton试剂法处理煤加压气化废水实验研究[J].环境科学与技术, 2006, 29(10):24-26.
[2]方芳,吴刚,韩洪军,等.我国煤化工废水处理关键工艺解析[J].水处理技术, 2017, 43(6):37-40.
[3]于海,孙继涛,唐峰.新型煤化工废水处理技术研究进展[J].工业用水与废水, 2014, 45(3):1-5.
[4]曹迎军.煤化工废水处理工程的调试运行[J].工业用水与废水, 2014, 45(4):38-41.
[5]姬鹏霞,杨建,刘志辉. SBR法处理鲁奇加压气化废水存在问题的探讨及措施[J].山东科学, 2005, 18(4):83-85.
[6]岳子明,安洪光,刘俊峰,等.强化混凝处理碎煤加压气化废水生化出水中有机物的实验研究[J].应用化工, 2014, 43(2):209-211.
[7]尚慧娟,王娟,范迪.焦化废水处理实验研究[J].青岛理工大学学报, 2013, 34(5):71-76.
[8]童君.开发区工业废水处理厂提标改造工程实例[J].工业用水与废水, 2016, 47(1):63-66.
[9]许佩瑶,侯素霞,赵建国.絮凝-Fenton试剂法处理煤加压气化废水实验研究[J].环境科学与技术, 2006, 29(10):24-26.