柠檬酸废水毕业设计.docVIP

某柠檬酸废水处理工程设计 The Design of Citric Acid Wastewater Treatment Project 摘 要 我国是世界上最大的柠檬酸生产和出口国，但柠檬酸生产工艺的固有特点使其生产过程中产生大量高浓度废水，成为环境的严重污染源，因此，废水治理已成为我国柠檬酸行业的当务之急。 柠檬酸废水处理方法有生产饲料酵母法、上流式厌氧污泥床(UASB)工艺、活性污泥法、光合细菌法、乳状液法及综合处理法等。本着重从运行成本和效率出发，130万水0.81元。Abstract China is the worlds largest producers and exporters of citric acid, citric acid production process but the inherent characteristics of the production process to produce a large number of high-strength wastewater, the environment has become a serious source of pollution, therefore, wastewater treatment, has become Chinas citric acid industry priority.) Citric acid wastewater treatment method of feed yeast production method, upflow anaerobic sludge blanket (UASB) processes, activated sludge, photosynthetic bacteria law emulsion method and the integrated treatment of law. Focusing on the design to save costs and improve operation efficiency point of view, the use of anaerobic - aerobic secondary treatment of contacts. Of process equipment and structures in each of the working principle and characteristics explained in detail; on the processing equipment and structures in detail the design and calculation to determine the structure of the processing equipment and the structure size, waste water treatment works layout and elevation layout, and a wastewater treatment works project budget, which projects a total investment of 130 million deal with a cost of 0.81 yuan per cubic meter of wastewater. Keywords: Citric Acid wastewater, Wastewater Treatment, Floatation, Oxidation, Reduction 第一章 绪论1.1 柠檬酸废水的来源与水质特征 1.2 柠檬酸废水处理方法研究现状 1.2.1 废水治理3废水，高时可达10m3~15m3。其COD和BOD5负荷分别达到 25000m3/L ~15000m3/L以上。若以我国柠檬酸产量40万t计，每年仅柠檬酸行业的超标废水的排放量就达600万t，成为环境的严重污染源。因此，治理废水、保护环境已成为我国柠檬酸行业的当务之急。 目前，国内主要以生物法对柠檬酸工业废水进行处理。因为柠檬酸生产废水属于高浓度有机废水，不含有毒物质，可生化性好，因此，国内外常用的柠檬酸废水处理方法是生物法，根据作用微生物的不同，生物处理方法可分为好养处理好厌氧处理两大类。 针对我国家目前行业废水的处理现状的统计和调查，广泛采： （）（二）厌氧生物法1.2.2 柠檬酸废水治理技术展望 随着全球可持续发展战略的实施，循环经济和清洁生产技术越来越受到人们关注。废水治理从末端治理已向清洁生产工艺、物质循环利用、废水回用等综合防治阶段发展。未来柠檬酸废水