急！！ 请各位大侠帮忙翻译成英文！论文需要，请专业翻译 谢谢！
2个回答
展开全部
Treatment of High Sulfite Refinery Wastewater by Conventional Activated Sludge
CONCLUSIONS
The bench-scale activated sludge simulation treatability study of the refinery wastewater spiked with sulfite accomplished the following objectives:
Evaluation of potential inhibitory impacts of sulfite spiked wastewater on activated sludge biomass
Impacts on Whole Effluent Toxicity tests
Oxidation of sulfites to sulfates
The refinery wastewater contained excess nutrients (nitrogen and phosphorus) above the requirements for biological treatment. No carbonaceous BOD removal or nitrification inhibitory impacts of the sulfite spiked wastewaters were observed in the activated sludge process. However, both the effluent soluble COD values obtained and nitrification appeared to be sensitive to the MLVSS concentration. When the MLVSS dropped below about 2,000 mg/L, the effluent soluble COD and ammonia-nitrogen concentrations increased. When the MLVSS was increased above 2,000 mg/L, effluent soluble COD concentrations around 110 mg/L were achieved, along with complete nitrification and effluent ammonia-nitrogen concentrations around 1.0 mg/L or less. When allowing for the 25% evaporation rate through the system, this effluent soluble COD value would be around 80 mg/L. The effluent tBOD remained very good throughout the study period with an average value around 7.5 mg/L.
The biomass characteristics remained excellent throughout the study period. Excellent settling characteristics were observed throughout the study period. The microbiological characteristics (bacteria and higher life forms) also remained excellent throughout the study period. Routine microscopic analyses of the full-scale refinery mixed liquor and the bench-scale system mixed liquor were performed throughout the study period for comparison. The same types of higher life forms and filamentous bacteria were consistently observed in both systems. However, the bench-scale system consistently maintained better floc characteristics and significantly less filamentous bacteria. The bench-scale floc characteristics were tighter and more compact than the full-scale floc, which was more diffuse in nature. Sphaerotilus natans was the predominant filament in both systems; however, significantly less filamentous bacteria were observed in the bench-scale system mixed liquor. It appears that the high influent sulfite concentrations help control the filamentous bacteria without any negative impacts on the higher life forms along with an overall positive impact on the biomass flocculation characteristics.
炼油厂污水处理高亚硫酸常规活性污泥法
结论
实验室的模拟treatability活性污泥的炼油厂污水尖亚硫酸盐完成下列目标:
评估潜在影响的抑制活性污泥污水在亚硫酸盐带刺
影响整个废水的毒性试验
氧化膜用亚硫酸盐来
炼油厂污水中氮、磷营养过剩的要求)以上生物处理。无碳BOD迁移、硝化抑制之冲击均亚硫酸带刺的废水活性污泥工艺。然而,废水COD获得的值和硝化溶似乎是敏感的MLVSS浓度。当MLVSS降到大约2000毫克/升,可溶性COD废水和氨氮浓度的增加。当MLVSS以上2000毫克增加可溶性COD含量、污水1100毫克/升)取得了良好的效果,随着氨氮浓度及污水完全硝化大约1毫克/升)或更少。当允许25%的蒸腾速率通过系统,该废水COD的价值将周围溶80毫克/升。tBOD废水仍然很好的整个学习期间,平均价值大约750毫克/升。
保持优良的生物特征在研究期间。优秀的沉降特性在研究期间被观测到。细菌和微生物学特征(高)也保持优良的生命形式在研究期间。例行的微观的混合酒和全面的精炼厂的混合酒进行实验室系统在整个学习期间进行比较。同一类型的更高的生命形态、丝状菌都在这两个系统。然而,实验室系统始终保持更好的絮状沉淀特点和明显减少丝状菌。这个实验室絮状沉淀特征进行严格的更紧凑,全面絮状沉淀在自然更广泛的。Sphaerotilus natans是主要的灯丝两个系统中;然而,大幅降低的丝状菌在实验室系统的观察和白酒。看来这个高度亚硫酸浓度的影响可以帮助控制蚂蚁的丝状菌没有任何负面影响更高的生命形态及全面的积极的影响,对生物絮凝特征。 采纳欧文
CONCLUSIONS
The bench-scale activated sludge simulation treatability study of the refinery wastewater spiked with sulfite accomplished the following objectives:
Evaluation of potential inhibitory impacts of sulfite spiked wastewater on activated sludge biomass
Impacts on Whole Effluent Toxicity tests
Oxidation of sulfites to sulfates
The refinery wastewater contained excess nutrients (nitrogen and phosphorus) above the requirements for biological treatment. No carbonaceous BOD removal or nitrification inhibitory impacts of the sulfite spiked wastewaters were observed in the activated sludge process. However, both the effluent soluble COD values obtained and nitrification appeared to be sensitive to the MLVSS concentration. When the MLVSS dropped below about 2,000 mg/L, the effluent soluble COD and ammonia-nitrogen concentrations increased. When the MLVSS was increased above 2,000 mg/L, effluent soluble COD concentrations around 110 mg/L were achieved, along with complete nitrification and effluent ammonia-nitrogen concentrations around 1.0 mg/L or less. When allowing for the 25% evaporation rate through the system, this effluent soluble COD value would be around 80 mg/L. The effluent tBOD remained very good throughout the study period with an average value around 7.5 mg/L.
The biomass characteristics remained excellent throughout the study period. Excellent settling characteristics were observed throughout the study period. The microbiological characteristics (bacteria and higher life forms) also remained excellent throughout the study period. Routine microscopic analyses of the full-scale refinery mixed liquor and the bench-scale system mixed liquor were performed throughout the study period for comparison. The same types of higher life forms and filamentous bacteria were consistently observed in both systems. However, the bench-scale system consistently maintained better floc characteristics and significantly less filamentous bacteria. The bench-scale floc characteristics were tighter and more compact than the full-scale floc, which was more diffuse in nature. Sphaerotilus natans was the predominant filament in both systems; however, significantly less filamentous bacteria were observed in the bench-scale system mixed liquor. It appears that the high influent sulfite concentrations help control the filamentous bacteria without any negative impacts on the higher life forms along with an overall positive impact on the biomass flocculation characteristics.
炼油厂污水处理高亚硫酸常规活性污泥法
结论
实验室的模拟treatability活性污泥的炼油厂污水尖亚硫酸盐完成下列目标:
评估潜在影响的抑制活性污泥污水在亚硫酸盐带刺
影响整个废水的毒性试验
氧化膜用亚硫酸盐来
炼油厂污水中氮、磷营养过剩的要求)以上生物处理。无碳BOD迁移、硝化抑制之冲击均亚硫酸带刺的废水活性污泥工艺。然而,废水COD获得的值和硝化溶似乎是敏感的MLVSS浓度。当MLVSS降到大约2000毫克/升,可溶性COD废水和氨氮浓度的增加。当MLVSS以上2000毫克增加可溶性COD含量、污水1100毫克/升)取得了良好的效果,随着氨氮浓度及污水完全硝化大约1毫克/升)或更少。当允许25%的蒸腾速率通过系统,该废水COD的价值将周围溶80毫克/升。tBOD废水仍然很好的整个学习期间,平均价值大约750毫克/升。
保持优良的生物特征在研究期间。优秀的沉降特性在研究期间被观测到。细菌和微生物学特征(高)也保持优良的生命形式在研究期间。例行的微观的混合酒和全面的精炼厂的混合酒进行实验室系统在整个学习期间进行比较。同一类型的更高的生命形态、丝状菌都在这两个系统。然而,实验室系统始终保持更好的絮状沉淀特点和明显减少丝状菌。这个实验室絮状沉淀特征进行严格的更紧凑,全面絮状沉淀在自然更广泛的。Sphaerotilus natans是主要的灯丝两个系统中;然而,大幅降低的丝状菌在实验室系统的观察和白酒。看来这个高度亚硫酸浓度的影响可以帮助控制蚂蚁的丝状菌没有任何负面影响更高的生命形态及全面的积极的影响,对生物絮凝特征。 采纳欧文
已赞过
已踩过<
评论
收起
你对这个回答的评价是？
推荐律师服务：
若未解决您的问题，请您详细描述您的问题，通过百度律临进行免费专业咨询
