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如何对污水处理站产生的臭气进行有效治理已经成为影响医院进一步发展的重要环保问题之一。本文介绍了我国医院污水处理站臭气的成分、来源及特点,同时简单阐述了恶臭治理的发展历史,分别阐述了目前国内医院常用的臭气治理技术、治理效果和发展潜力,从源头治理、末端治理和治理效果三个方面对比治理措施的优劣性,对比结果表明:联合技术将是未来医院污水处理站臭气治理推荐的治理技术之一。 相似文献
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在气田开采中,通过做好水合物治理以及配套的节能降耗工作,可以提升气田作业水平。从气田水合物概述展开论述,并分析了物理治理、化学治理、技术治理这三种气田水合物治理,然后从气田水合物治理中的伴热环节入手,提出了节能降耗的措施,实现了对气田水合物治理及节能降耗措施的研究,对提高油气田生产能源效率有着重要意义。 相似文献
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介绍了国内外污水处理厂的恶臭治理技术,分析了兰州石化厂的恶臭治理工艺,同时提出了污水处理厂恶臭治理的发展方向。 相似文献
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唐山工业职业技术学院以需求驱动为核心建设数字化校园,解决了超前配备设备造成的资源浪费、数字化教学资源低水平重复建设、应用孤岛等问题。以综合治理为核心,建设IT治理子系统、数据治理子系统、服务治理子系统、业务治理子系统,优化了数字化校园基础架构。以内部治理为核心打造“诊改”平台、搭建“任务”平台、建设“内控”平台、构建“政务”平台,努力推进治理数字化转型,学校治理体系和治理能力正加快迈向现代化。 相似文献
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本试验采用混凝沉淀_MBR工艺对印染废水进行处理。试验研究表明:混凝后COD的去除率达到80%以上,BOD5的去除率达到55%以上,色度的去除率达到84%以上;再经MBR处理,出水COD低于30mg/L,BOD5低于10mg/L,色度低于30度,达到了回用水的标准。 相似文献
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石油炼制行业电脱盐废水乳化严重、破乳难,影响后续深度处理,已成为企业污染防治的重要难题。本研究针对典型炼化企业电脱盐废水的排放与处理需求,实时跟踪电脱盐废水的水质波动。基于电脱盐废水的污染组成特点,分析其稳定性,并首次利用管式电絮凝处理电脱盐废水。结果表明,该企业电脱盐反冲洗时,电脱盐废水中石油类浓度>400mg/L,最高时可达1700mg/L,显著高于设计值。其化学需氧量(COD)平均为4484mg/L,与原油性质密切相关,其中溶解性COD约765mg/L,主要来源于电脱盐注水。反冲洗废水中胶质、沥青质重质组分占总油比例28%,高于正常排水。电脱盐废水具有一定的自发破乳性,但时间较长;曝气预处理30min后COD可降至原水的26.2%;电絮凝可进一步大幅降低COD与溶解性COD,且在初始电流1.0A、反应时间15min时,COD和溶解性COD的平均去除率分别达到80%和50%,降解过程符合准一级动力学模型,此时直接运行成本约0.92CNY/m3废水。 相似文献
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Ping Yu 《Desalination》2003,151(2):145-152
A novel water treatment process, combining cationic ion exchange and bicarbonate removal in a countercurrent three-phase fluidized bed, was explored. The study was based around a laboratory scale bed. The different operating conditions and effluent quality were investigated. The results showed that concentrations of sodium and carbon dioxide in effluent decreased with increasing height of resin static layer and greater airflow velocity. The concentration of sodium and carbon dioxide in the effluent was lower than 0.1 mg/l and 5 mg/l respectively. Instantaneous conductivity that illustrated effluent quality was measured in different sections of the bed. A mathematical modeling which can simulate the changing of conductivity was built, the validity and applicability of the model for future prediction of effluent properties have been verified by the good agreement between the experimental and predicted values. 相似文献
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对桉木P-RC APMP废水进行了污染特征的全面分析,每产1吨桉木 P-RC APMP浆,耗水 26.7 m3,排出COD 114.8 kg,BOD 35.7 kg,SS 42.1 kg。厌氧处理在COD体积负荷 5 g/(L·d) 时,可使桉木P-RC APMP废水的COD去除 61.3%;好氧处理在HRT 24 h 时,可使桉木P-RC APMP废水的COD去除 73.7%。生物处理后的桉木P-RC APMP废水,经初步的混凝处理很容易达到国家排放标准GB 3544-2001。经深度的混凝处理,则可使COD降到 200 mg/L以下,SS 降到 60 mg/L 以下,达到更高的环保要求。 相似文献
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Rim Khlifi Sami Sayadi Lassaad Belbahri Steve Woodward Tahar Mechichi 《Journal of chemical technology and biotechnology (Oxford, Oxfordshire : 1986)》2009,84(12):1828-1833
BACKGROUND: This study concerns the assessment of laccase stability during textile industry effluent treatment by laccase in the presence of a mediator RESULTS: The effects of 1‐hydroxybenzotriazole (HBT) and textile wastewater on the stability of a crude laccase prepared from cultures of Trametes trogii during the process of textile industry effluent decolourization were determined. HBT was essential for decolourization of effluent by laccase. Decolourization efficiency decreased when effluent was repeatedly added to the reaction mixture, suggesting inhibition of laccase during the process. Stability of the laccase was not affected by different concentrations of effluent, but inactivation was proportional to HBT concentration. CONCLUSION: Experimental results showed that a redox mediator such as HBT was required for high decolourization rate of textile industry effluent; however free radicals generated from this compound inactivated the laccase used in the process. Copyright © 2009 Society of Chemical Industry 相似文献
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曝气生物滤池处理印染废水挂膜启动研究 总被引:2,自引:0,他引:2
采用不经二沉池沉淀的二级生化出水启动生物活性炭装置。启动挂膜过程中研究了装置对COD、NH3-N及色度的去除效果和进、出水的DO、pH值变化。试验结果表明:生物膜成熟后,生物活性炭装置对COD、NH3-N及色度均有较好的去除效果,稳定运行时COD的去除率保持在65%以上,NH3-N的去除率保持在70%以上,出水中未检测到色度。通过考察装置进、出水DO和pH值变化,可以判断硝化细菌的生长状况。研究结果显示:挂膜过程中进、出水DO差值变小时,硝化细菌生长状况良好;挂膜过程中出水pH值变小时,硝化细菌生长状况良好。 相似文献
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Industrial effluent was evaporated in a fin type single basin solar still and a stepped solar still separately. To preheat the saline water, a mini solar pond was integrated with these stills. Both the stills were operated with mini solar pond and tested individually. In fin type single basin solar still, maximum productivity is obtained, when it is modified with black rubber, sponge and sand. The stepped solar still was modified with fin, pebble and sponge to enhance their productivities. When mini solar pond, pebble, sponge and fin are used in stepped solar still, maximum productivity was obtained To settle the industrial effluent, a settling tank was also fabricated with five layers namely: tray for raw effluent, pebble layer, coal layer, sand layer and collection tray for settled effluent. Physical and chemical analyses were made for raw effluent, settled effluent and distilled water. Economic analysis was made. 相似文献
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针对污水处理生化除磷过程中出水总磷难以实时达标的问题,提出了一种基于模糊神经网络(fuzzy neural network,FNN)的出水总磷控制方法。首先,通过分析污水处理生化除磷机理,确定了控制器的操作变量为生化反应池第五分区外部碳源(external carbon, EC)与溶解氧(dissolved oxygen, DO)传递系数。其次,设计了一种基于FNN的出水总磷控制器,采用梯度下降算法更新控制器参数;最后,将基于FNN的出水总磷控制器应用于污水处理过程基准仿真平台(benchmark simulation model No.1,BSM1),实验结果表明,基于FNN的出水总磷控制器能够保证出水总磷的达标排放,具有较好的控制效果。 相似文献
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连续微滤膜系统应用于污水深度处理 总被引:10,自引:0,他引:10
将污水处理厂生物处理的二级出水,采用连续微滤膜(CMF)系统进行深度处理,满足多用途回用。一方面消除了二级出水潜在的二次环境污染,同时有效地利用了水资源,实现了对水资源合理地利用和保护,这对我国淡水资源缺乏的北方地区水资源利用和保护具有重大意义。采用连续微滤膜分离系统对天津经济技术开发区污水处理厂SBR工艺的二级出水进行深度处理中试试验研究,二级出水经过CMF膜分离系统处理后,悬浮物小于5mg/L,浊度小于0.5NTU,细菌和大肠杆菌几乎全部去除。 相似文献