[1]贺梦凡,吴宝强,王宇,等.机械加工废乳化液分类处理工艺及抗冲击运行策略[J].中国给水排水,2025,41(6):122-129.
　HEMeng-fan,WUBao-qiang,WANGYu,et al.Classified Treatment Process for Mechanical Processing Waste Emulsion and Anti-impact Load Operation Strategy[J].China Water & Wastewater,2025,41(6):122-129.
点击复制

机械加工废乳化液分类处理工艺及抗冲击运行策略

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第41卷 期数: 2025年第6期 页码: 122-129 栏目: 出版日期: 2025-03-17
Title:
Classified Treatment Process for Mechanical Processing Waste Emulsion and Anti-impact Load Operation Strategy
作者:
贺梦凡1， 吴宝强1， 王宇2， 陆斌1， 黄翔峰1， 郑维伟1， 薛佳2， 杨文新2， 彭开铭1
（1.同济大学环境科学与工程学院 污染控制与资源化研究国家重点实验室 长江水环境教育部重点实验室，上海 200092；2.江苏绿赛格再生资源利用有限公司，江苏 常州 213000）
Author(s):
HE　Meng-fan1， WU　Bao-qiang1， WANG　Yu2， LU　Bin1， HUANG　Xiang-feng1， ZHENG　Wei-wei1， XUE　Jia2， YANG　Wen-xin2， PENG　Kai-ming1
（1. State Key Laboratory of Pollution Control and Resource Reuse， Key Laboratory of Yangtze River Water Environment， Ministry of Education， College of Environmental Science and Engineering， Tongji University， Shanghai 200092， China； 2. Jiangsu Lüsaige Regenerated Co. Ltd.， Changzhou 213000， China）
关键词:
废乳化液;  油水分离;  分类处理;  生物脱氮
Keywords:
waste emulsion;  oil water separation;  classified treatment;  biological denitrification
摘要:
机械加工废乳化液污染物种类多、浓度高且波动大，给传统单一处理工艺的稳定高效运行带来较大挑战。基于废乳化液集中处理的技改项目，构建了机械加工废乳化液物化-生化分类处理工艺，并重点探究了污染物负荷对生物硝化功能的影响。工程实践表明，物化处理段分别采用蒸发、磁破乳分离、混凝气浮等技术进行分类分质处理，可显著提高对复杂废乳化液的普适性；对TN和NH3-N的去除率不足60%，但对COD、油类、SS和TP等的平均去除率均大于90%。在生化段的运行调试中发现，进水COD和NH3-N波动范围分别为2 885~5 100和60~170 mg/L，它们是显著影响生物脱氮的主控因素；进水COD及NH3-N容积负荷分别与生化出水NH3-N浓度呈正相关，相应地，保证系统稳定硝化的临界容积负荷分别为1.13、0.034 kg/（m3·d）。技改项目的综合处理成本较改造前显著降低。分类分质处理的工程实践与生化段运行负荷控制研究为废乳化液高效稳定处理提供了工艺思路和运行参数借鉴。
Abstract:
Mechanical processing waste emulsions contain diverse pollutants with high concentrations and significant fluctuations, posing significant challenges to the stable and efficient operation of traditional single treatment process. This study, based on a technical transformation project for centralized waste emulsion treatment, developed a combined physicochemical and biochemical treatment process tailored for mechanical processing waste emulsions. The study focused on exploring the impact of pollutant load on biological nitrification. In the physicochemical treatment stage, practices such as evaporation, magnetic demulsification and separation, coagulation, and air flotation were implemented to classify and treat emulsions. These methods significantly enhanced the process’s versatility for handling various waste emulsions. While the removal rates of TN and NH3-N were below 60%, the average removal rates of COD, oil, SS, and TP exceeded 90%. In the biochemical treatment stage, operational and debugging processes revealed that influent COD and NH3-N concentrations fluctuated between 2 885-5 100 mg/L and 60-170 mg/L, respectively. These fluctuations significantly affected the stability of biological denitrification. The NH3-N concentration in biochemical effluent was positively correlated with the influent COD and NH3-N volumetric loads. Critical influent COD and NH3-N volumetric loads for stable biological nitrification were identified as 1.13 kg/(m3·d) and 0.034 kg/(m?·d), respectively. Overall, the comprehensive treatment cost of the technical transformation project was significantly reduced compared to the previous process. The engineering practices and operational load control studies provide valuable insights and operational parameters for the efficient and stable treatment of waste emulsions.

相似文献/References:

[1]宋国城,丁春.聚酯滤布的超亲水改性及油水分离性能[J].中国给水排水,2022,38(11):49.
　SONGGuo-cheng,DINGChun.Superhydrophilic Modification of Polyester Membrane and Its Oil-Water Separation Performance[J].China Water & Wastewater,2022,38(6):49.

更新日期/Last Update: 2025-03-17