养猪场污水UASBSBR工艺处理工程设计.docVIP

养猪场污水UASB+SBR工艺处理工程设计 摘 要 养殖业污水中富含大量营养物质，若不经处理直接外排入水体，往往会造成水体富营养化。养猪废水的特点是排放集中、水力冲击负荷强、有机质浓度高、水解酸化快、沉淀性能好。本设计采用UASB+SBR处理工艺，该工艺优点在于艺对有机物、悬浮物、氮和总磷均有很好的去除效果。废水首先进入调节池,去除大部分悬浮物和少量有机物，出水流入集水井，通过泵输送到UASB反应器，大部分有机物被降解，并产生沼气。UASB反应器出水进入SBR反应器进行后续处理，部分有机物和大部分NH3-N被降解。由于SBR反应器出水SS、COD还较高，影响出水水质，因此通过氧化塘作进一步处理，以满足达标排放要求。 废水经处理后达到《畜禽养殖业污染物排放标准》（GB18596-2001）排放标准，本设计采用的工艺可达到预期的处理效果。 关键词：养猪场废水；有机废水；UASB；SBR；氧化塘 Abstract A large number of aquaculture wastewater rich in nutrients, if not treated directly discharged into water bodies outside will often result in eutrophication. Emissions from swine wastewater is characterized by a concentration of strong hydraulic shock loads, high concentrations of organic matter, hydrolysis acidification rapid sedimentation performance. This design uses UASB + SBR treatment process, the process advantages of Arts of the organic matter, suspended solids, nitrogen and phosphorus removal were very good. First, adjust the pool water to enter, remove most suspended solids and a small amount of organic matter, water wells into the collection, by pumping to the UASB reactor, most of the organic matter is degraded, and produce methane. UASB reactor effluent into the SBR reactor for subsequent processing, part of the organic matter and most of the NH3-N degradation. SBR reactor effluent as SS, COD is also high, affecting water quality, so by oxidation pond for further processing to meet the discharge standards requirements. The treated wastewater to achieve emission standards for livestock and poultry breeding industry(GB18596-2001) emission standards, the design process can be used to achieve the desired treatment effect. Keywords: Piggery wastewater.；Organic waste ；USAB；SBR；Oxidation pond目 录 摘 要 i Abstract ii 目 录 iii 第一章 前 言 1 1.1 毕业设计课题及研究目的意义 1 1.1.1课题的意义 1 1.1.2 课题研究的目的 2 1.2 国内外养殖业污染现状及防止措施 2 1.2.1国外养殖业污染及防治措施 2 1.2.2国内养殖业污染现状 4 1.3 养殖厂废水处理的发展现状 5 1.3.1国外发展现状 5 1.3.2国内发展现状 5 1.3.3 研究现状 6 1.3.4 其他相关处理技术 9 1.3.5 结论与展望 9 1.4 养猪场废水处理工艺发展趋势 10 第二章