共查询到19条相似文献,搜索用时 171 毫秒
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介绍了华中某工程机械厂生产废水处理工程实例,包括项目概况、水质水量、工艺路线、自动控制、主要设备材质、管道阀门选择等。针对脱脂废水、硅烷废水和电泳喷漆废水,采用分质物化预处理+生化处理工艺,最终达到《污水综合排放标准》(GB8978-1996)三级标准,排市政管网。工程的实施为今后同类工程实施具有借鉴参考意义。 相似文献
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赵庆 《有色冶金设计与研究》2014,(3):47-49
从废水的水质、处理工艺和单体构筑物等方面介绍了某危险废物处理处置中的废水处理设计。该项目采用物化处理+生化处理+深度处理的组合工艺,具有效果好、出水水质稳定等优点,出水可满足《污水综合排放标准》(GB 8978-96)一级标准的要求。 相似文献
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张文生 《有色冶金设计与研究》2019,(4)
赤峰金剑铜业技改项目生产原水采用城市中水。该中水水质平均硬度为381.09 mg/L、碱度217.72 mg/L、COD 32.25 mg/L,进水水质相对较好。为保证生产用水的安全性,需对中水进行处理。设计采用"预处理+超滤+二级膜处理+EDI深度处理"的流程,经处理后的一级反渗透出水用作循环水补充水,另一部分一级反渗透出水经二级反渗透及EDI深度处理后出水用作锅炉补给水。采用工艺处理后,产水水质、排水水质均可达到国家标准。 相似文献
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通过单因素实验和正交实验,研究了再生水在回用过程中,水质对循环冷却水系统腐蚀的影响。结果表明,NH+4-N、SO2-4、Cl-是导致循环冷却水系统内腐蚀的主要因素,并且NH+4-N影响最严重。 相似文献
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分别采用同步和分步条件试验,考察反应时间和加药量对高碱石灰铝盐法去除氯离子的影响。分步处理效果优于同步处理,反应时间可控制在45 min+45 min。随着加药量的增加,氯离子和硫酸根离子的去除效果明显改善,最佳条件下氯离子的去除率达到66%,出水氯离子浓度低于350mg/L,满足循环冷却水的水质要求。对硫酸根离子去除效果更为明显,去除率可达到90%,出水硫酸根离子浓度低于25 mg/L。经处理后,出水中钙离子浓度、镁离子浓度和硬度等均低于0.05 mg/L。出水指标均达到循环冷却水的水质标准要求。 相似文献
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分析了冷轧废水产生的来源,说明了冷轧废水在处理工艺选择、水质、水量确定上的困难。通过宝钢工程改造成功的经验,提出了将生物处理应用于冶金行业的冷轧废水处理思路,并总结了冷轧废水处理工程设计的几点看法。 相似文献
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对低负荷运行状态下某生活垃圾渗滤液处理厂监测的数据进行分析,研究UASB、MBR、DTRO各工艺单元及工艺系统对渗滤液中CODcr、SS、NH3-N等污染物质的去除效果及去除率,分析UASB+ MBR+ DTRO工艺对渗滤液的处理效果.经过11个月的长时间运行监测,处理后出水水质能稳定达到《城市杂用水水质标准》(GB/... 相似文献
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膜生物反应器(MBR)是将生物处理与膜分离技术相结合的一种高效污水处理与回用新工艺。广州JFE钢板有限公司冷轧工程废水站生化处理单元选用了浸没式膜生物反应器(MBR)工艺,运行平稳,出水水质稳定,为后续废水深度处理回用奠定了坚实的基础。本文介绍浸没式膜生物反应器(MBR)的材质、结构、工作原理、设计参数、运行状态及膜装置的清洗、储存等。 相似文献
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Many uncertain factors affect the operation of wastewater treatment plants. These include the physical and chemical properties of wastewater streams as well as the degradation mechanisms exhibited by biological processes. Because of the rising concerns about environmental and economic impacts, improved process control algorithms, using artificial intelligence technologies, have received wide attention. Recent advances in control engineering suggest that hybrid control strategies, integrating some ideas and paradigms existing in different soft computing techniques, such as fuzzy logic, genetic algorithms, and neural networks, may provide improved control of effluent quality. The methodology proposed in this study employs a three-stage analysis that integrates three soft computing approaches for generating a representative state function, searching a set of multiobjective control strategies, and autotuning the fuzzy control rule base used for controlling a treatment plant. The case study, using an industrial wastewater treatment plant in Taiwan as an example, demonstrates the applicability of the approach. The findings from this research suggest that a genetic-algorithm–based hybrid fuzzy-neural controller can produce better plant performance than does a simple fuzzy logic controller, in terms of both environmental and economic objectives. This methodology can be extended to control many other types of wastewater treatment processes, as well, by making only minor modifications. 相似文献
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钼铼生产废水具有高氨氮、含油和重金属的特点,采用"气浮-芬顿法-沉淀-脱氨-电絮凝"工艺处理钼铼生产废水,原水氨氮20~40g/L,COD 500~1 000 mg/L,出水氨氮<10 mg/L,COD<100mg/L,重金属<0.5mg/L,达到GB 8978-1996一级排放标准。本工程具有处理效果好和运行稳定的优势,具有较好的社会与环境效益。 相似文献
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Human urine contributes 80% of the total nitrogen and 40–50% of the total phosphate load to municipal wastewater. This study examines the impact of separate urine collection and treatment on wastewater treatment. An integrated wastewater and urine treatment process was defined, in which single high-rate ammonium removal over nitrite and anaerobic ammonium oxidation processes and struvite recovery are at the heart of the nutrient management. The model study demonstrated that if 50% or more of urine were collected and treated separately, integrated wastewater treatment with more compact and energy-efficient processes would be possible. The integrated wastewater and urine treatment is compared to an existing state-of-the-art treatment process. The main advantage of urine separation is not only a better effluent quality. Existing processes including tertiary treatment can already produce very good effluent quality with total effluent nitrogen and phosphate concentrations of 2.5 and 0.5?g/m3, respectively. The main advantage of urine separation is the production of this same good effluent quality with a remarkable saving in resources. With sufficient urine separation, generation of net primary energy is possible. 相似文献
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