Example of wastewater treatment project and digital application in circulating water system of refining and chemical enterprises

doi:10.11894/iwt.2021-0314

Industrial Water Treatment ›› 2021, Vol. 41 ›› Issue (6): 273-276. doi: 10.11894/iwt.2021-0314

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Example of wastewater treatment project and digital application in circulating water system of refining and chemical enterprises

Xiaofeng Hou¹(),Jin Zhao²,Anmin Zhu^2,*()

1. China BlueChemical Ltd., Beijing 100029, China
2. CenerTech Tianjin Chemical Research and Design Institute Co., Ltd., Tianjin 300131, China

Received:2021-03-31 Online:2021-06-20 Published:2021-07-08
Contact: Anmin Zhu E-mail:houxf@cnooc.com.cn;Zham65@126.com

炼化企业循环水场废水处理工程及数字化应用实例

侯晓峰¹(),赵谨²,朱安民^2,*()

1. 中海石油化学股份有限公司, 北京 100029
2. 中海油天津化工研究设计院有限公司, 天津 300131

通讯作者: 朱安民 E-mail:houxf@cnooc.com.cn;Zham65@126.com
作者简介:侯晓峰(1976-), 硕士, 高工。E-mail: houxf@cnooc.com.cn

Abstract

Abstract:

Aiming at the deterioration of circulating water system water quality in an refining and chemical company, membrane bioreactor(MBR) and frequent electrodialysis reversal(EDR) combined process was selected for advanced treatment of circulating water by-pass filter backwashing wastewater and cleaning wastewater. After advanced treatment, the effluent quality was good and met the requirements of the "Design specification for watewater reclamation and reutilization in petrochemical industy"(SH 3173-2013), and the operation of the circulating water system by digital technology was more stable. The operation cost of the project was 1.87 CNY per ton. The EDR on-line chemical cleaning cycle was 50-60 d and the off-line cleaning cycle was 12-14 months.

Key words: membrane bioreactor, frequent electrodialysis reversal, circulating water, wastewater treatment, digital

摘要：

针对某炼化公司循环水系统水质恶化情况，选择膜生物反应器（MBR）与频繁倒极电渗析（EDR）组合工艺深度处理循环水旁滤反洗废水和清净废水。深度处理后出水水质良好，满足《石油化工污水再生利用设计规范》（SH 3173—2013）要求，应用数字化技术使循环水系统运行更加稳定。工程运行费用为1.87元/t，EDR在线化学清洗周期为50~60 d，离线清洗周期为12~14月。

关键词: 膜生物反应器, 频繁倒极电渗析, 循环水, 废水处理, 数字化

CLC Number:

X703

Xiaofeng Hou,Jin Zhao,Anmin Zhu. Example of wastewater treatment project and digital application in circulating water system of refining and chemical enterprises[J]. Industrial Water Treatment, 2021, 41(6): 273-276.

侯晓峰,赵谨,朱安民. 炼化企业循环水场废水处理工程及数字化应用实例[J]. 工业水处理, 2021, 41(6): 273-276.

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URL: https://gyscl.magtechjournal.com/EN/10.11894/iwt.2021-0314

https://gyscl.magtechjournal.com/EN/Y2021/V41/I6/273

项目	总碱度（以CaCO₃计）/（mg·L^-1）	总硬（以CaCO₃计）/（mg·L^-1）	Cl^-/（mg·L^-1）	COD/（mg·L^-1）	pH	浊度/NTU
进水	50~500	50~800	≤700	≤60	6.5~8.5	≤10
出水	≤150	≤240	≤140	≤48	6.5~8.5	≤1
标准	50~300	50~300	≤250	≤50	6.5~9.0	≤5

项目	总碱度（以CaCO₃计）/（mg·L^-1）	总硬（以CaCO₃计）/（mg·L^-1）	Cl^-/（mg·L^-1）	COD/（mg·L^-1）	pH	浊度/NTU
进水	50~500	50~800	≤700	≤60	6.5~8.5	≤10
出水	≤150	≤240	≤140	≤48	6.5~8.5	≤1
标准	50~300	50~300	≤250	≤50	6.5~9.0	≤5

项目	总碱度/（mg·L^-1）	总硬度/（mg·L^-1）	氯离子/（mg·L^-1）	COD/（mg·L^-1）	pH
进水	277.47	157.38	214.96	32.58	8.44
出水	64.34	37.11	40.40	27.37	6.76
浓水	475.76	271.97	408.42	34.43	8.68

项目	总碱度/（mg·L^-1）	总硬度/（mg·L^-1）	氯离子/（mg·L^-1）	COD/（mg·L^-1）	pH
进水	277.47	157.38	214.96	32.58	8.44
出水	64.34	37.11	40.40	27.37	6.76
浓水	475.76	271.97	408.42	34.43	8.68

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2	金熙, 项成林, 齐冬子. 工业水处理技术问题及常用数据[M]. 北京: 化学工业出版社, 1996: 394- 396.
3	崔玉川, 李思敏, 李福勤. 工业用水处理设施设计计算[M]. 北京: 化学工业出版社, 2003: 130- 135.

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