果汁废水处理设计（UASB+SBR）说明.doc

摘要 近年来，果汁饮料作为新世纪的健康饮品，已成为消费者的追逐热点。随着果汁产业的不断壮大，果汁生产中的高浓度有机废水对环境的污染也越来越受到社会各界的关注。环境是人类生活的载体，本着对环境负责，对人类的负责的原则，果汁生产废水治理已成为每个企业生产运行必不可少的程序。 本设计主要分析了当前果汁生产废水治理的热点问题和工艺方法，并从中拟定出适合所持工程设计的方案，设计本着科学实际、效益优先的原则，全面地对预选方案进行了详细的设计计算，该设计为果汁废水，水量为5000m3/d，根据食品生产相关资料，设计选定的安全系数为K2=1.8。原污水中各项指标为：CODcr浓度为8000mg/L，BOD5浓度为4000mg/L，SS浓度为4000mg/L，pH5-12。该废水若不经处理会对环境造成巨大污染，故要求进行处理，要求出水标准按照《污水综合排放标准》（GB8978-1996）一级标准执行，即：CODcr≤100mg/L，BOD5≤30mg/L，SS≤70mg/L，pH6-9。 设计内容属于有机物浓度高，水量大，水质波动较大，水中固体干扰物较大的工程，经过对主流高浓度有机废水处理方法的比选和自身所掌握的技术知识，最终确定为“原水预处理+UASB+SBR”的工艺。 根据设计计算结果，表明本设计方案结构紧凑简洁，运行控制灵活，抗冲击负荷能力强等特点，根据其他同类设计并投产运行的效果来看，该组合工艺处理性能可靠，具有投资少，运行管理简单等特点。为果汁工业废水处理提供了一条可行的途径。具有良好的经济效益、环境效益和社会效益，综合效益高，有较高的运用价值。 关键词：果汁废水；活性污泥；UASB；SBR ABSTRACT In recent years, fruit juice beverage as a new century health drinks, have become hot pursuit of consumers. With the growing of fruit juice industry, high concentration organic wastewater from the fruit juice factory caused the environment pollution is getting much more attentions. Environment is the carrier of our lives, in that responsible for environment and our people, fruit juice production wastewater treatment has become essential procedures for each enterprise. This design mainly analyzed the hot issues and processes of the fruit juice production wastewater treatment in the current, and found a suitable process to treat the kinds of wastewater in the end. Designed in the principle of giving priorities to efficiency and science . calculated comprehensively to the preselected programs. The design is for the fruit juice wastewater: Q= 5000m3/d, according to the relevant data of food production, I selected the safety coefficient K2=1.8. Indicators of raw sewage are: CODcr concentration is 8000mg/L, BOD5 concentration is 4000mg/L, SS concentration is 4000mg/L, pH5-12. The wastewater is discharged into the environment without treatment will cause a great pollution, so we must treat it. The?effluent?quality comes up to the Ⅰ-class?criteria specified in the Integrat