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气浮-生物接触氧化-臭氧氧化组合工艺处理冷轧碱性含油废水 总被引:1,自引:0,他引:1
为满足新的钢铁工业水污染物排放标准,应对新增、改造机组带来的废水量提升,某冷轧厂新建稀碱含油废水处理系统处理稀碱含油废水、平整废水和乳化液废水的预处理后出水。设计采用气浮-生物接触氧化-臭氧氧化组合工艺,出水满足GB 13456—2012《钢铁工业水污染物排放标准》表3要求。工程运行结果表明,新建稀碱含油废水处理系统出水水质满足设计要求,运行成本约为3元/m3。 相似文献
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水解酸化-两级EGSB-生物接触氧化工艺处理肉类加工废水 总被引:2,自引:2,他引:0
根据某肉联厂的水量、水质等实际情况,选择水解酸化-两级EGSB-生物接触氧化工艺作为主体工艺处理该肉类加工废水。工程调试运行结果表明,该工艺运行稳定,抗冲击负荷能力强,出水水质达到《肉类加工工业水污染物排放标准》(GB13457-1992)的排放要求。 相似文献
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通过气浮、水解酸化+AO生物处理、电催化氧化、生物巢工艺进行油库废水处理,处理水量为30 m3/h。阐述了选择该工艺的理由,列举了主要设备及构筑物的数量、型号、规格尺寸等相关参数并对采用该处理系统的技术经济进行分析。实际运行结果证明,各单元状态稳定,处理后,废水的CODCr由1 350 mg/L降至43.5 mg/L,BOD5由89.6 mg/L降至4.8 mg/L,TN由55 mg/L降至15.5 mg/L,其余出水水质达到了《石油炼制工业污染物排放标准》(GB 31570—2015)中表2水污染物特别排放限值要求。 相似文献
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河北某制药公司在中药废水处理过程中,采用曝气生物滤池作为后续深度处理单元,工程实际运行数据表明:从二沉池出来100~150mg/L的CODCr经过曝气生物滤池后降至90 mg/L以下,达到《中药类制药工业水污染物排放标准》的排放水质要求。 相似文献
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介绍了某食品公司肉类加工废水处理工程的工艺参数、调试和运行结果。采用二级生物接触氧化、过滤工艺处理,出水水质指标达到《污水综合排放标准》(GB8978-1996)二级标准。工程实践表明,该处理系统具有处理效果稳定、占地面积小、运行费用低等特点。 相似文献
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采用接触氧化-气浮-多级生化处理组合工艺处理高浓度制药废水.结果表明,系统COD去除率达95.7%,SS去除率达96.8%,BOD5去除率达99.8%.该工艺具有处理效率高、抗冲击负荷强、运行稳定等优点. 相似文献
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Fe/Cu催化内电解-Fenton法联合处理三氯乙酸废水的研究 总被引:3,自引:2,他引:1
采用Fe/Cu内电解-Fenton法联合处理三氯乙酸废水。考察了Fe与Cu质量比、pH值和H2O2投加量等因素对废水处理效果的影响。确定了联合处理法的最佳工艺条件:催化内电解过程中Fe与Cu质量比为4:1、pH值为4、搅拌时间为50min;Fenton法阶段中pH值为4、H2O2加入量为10mL/L并分批投加、搅拌时间为40min。在最佳工况条件下,联合工艺处理质量浓度为100mg/L的三氯乙酸废水脱氯率达80.1%,COD去除率达78.4%。使用联合法处理废水,能有效提高处理效果,可以处理较高浓度的三氯乙酸废水。 相似文献
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Solvent sublation is a unique bubble-separation method which combines features of foam fractionation and solvent extraction in a single unit operation. Surfactant introduced into a flotation column serves to remove emulsions and other colloids, while simultaneously transporting dissolved organics into a solvent layer for retention. The extracting solvent is placed directly on the surface of the aqueous phase.
The objective of this research was to test the feasibility of using the solvent sublation process to remove phenols and particulates from underground coal gasification (UCG) wastewater. Previous work with separate flotation, adsorption, solvent extraction and coagulation processes indicated that a combined approach might have added utility in increasing pollutant removal. Further, the combined process could have greater efficiencies of operation.
All experiments were performed in the batch mode using methylisobutyl ketone (MIBK) solvent and ethylhexadecyldimethylammonium bromide (EHDA-Br) surfactant. The solvent-aqueous ratios, pH, and surfactant doses were independently varied in this investigation, while the air flow rate was held constant. The final process configuration employed removed 93 percent of the phenols and over 90 percent of the 2-10 μm diameter particles from the UCG wastewater. In addition, some precipitate flotation was observed in select operational modes. This served to remove color bodies and additional colloids previously immune to treatment. Measurement of residual MIBK in effluents showed that solvent-sublation left less residual solvent than did solvent-extraction in these wastewaters. 相似文献
The objective of this research was to test the feasibility of using the solvent sublation process to remove phenols and particulates from underground coal gasification (UCG) wastewater. Previous work with separate flotation, adsorption, solvent extraction and coagulation processes indicated that a combined approach might have added utility in increasing pollutant removal. Further, the combined process could have greater efficiencies of operation.
All experiments were performed in the batch mode using methylisobutyl ketone (MIBK) solvent and ethylhexadecyldimethylammonium bromide (EHDA-Br) surfactant. The solvent-aqueous ratios, pH, and surfactant doses were independently varied in this investigation, while the air flow rate was held constant. The final process configuration employed removed 93 percent of the phenols and over 90 percent of the 2-10 μm diameter particles from the UCG wastewater. In addition, some precipitate flotation was observed in select operational modes. This served to remove color bodies and additional colloids previously immune to treatment. Measurement of residual MIBK in effluents showed that solvent-sublation left less residual solvent than did solvent-extraction in these wastewaters. 相似文献
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二级接触氧化工艺处理屠宰废水 总被引:2,自引:0,他引:2
结合工程实例,介绍采用二级接触氧化工艺处理屠宰废水,实例表明此工艺运行稳定,处理效果比较好,当进水COD质量浓度为2780mg/L,采用此工艺处理后出水中CODcr为49mg/L,出水水质达到北京市《水污染排放标准》中的第二级标准(新改扩),并介绍了处理该废水的运行费用。 相似文献
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