Nitrogen combined sewage treatment device and efficient phosphorus removal, which belongs to the technical field of water treatment, is composed of a rectangular tank body and a tank body composed of oval, oval cell body located in the rectangular tank body, the formation of outer wall of the inner wall of a tank body with rectangular oval pool the area for the aerobic pool, sedimentation tank, anaerobic tank or two anaerobic tank and anoxic tank is arranged on the oval cell body, oval tank body is composed of parallel two straight wall and straight wall at both ends of the semicircular wall is connected to the end of a round oval cell body layout two sedimentation tank, the two circular sedimentation tank and tank body half round oval shared wall, two sink the pond outside the oval the pool was designed as the anaerobic tank and anaerobic tank and anoxic tank, the device has the advantages of high efficiency of nitrogen and phosphorus removal and the short residence time of waste water, the pool body compact, small occupation area, can realize AO, A = 2 / O Inverted A = 2 / O different process operation, the internal space to maximize the utilization of the water can be suitable for different conditions and the concentration of nitrogen and phosphorus removal rate requirements, wide applicability.
【技术实现步骤摘要】
本专利技术涉及一种高效除磷脱氮组合式污水处理装置,属水处理
,尤其是指一种可以将污水调节池、水解池、厌氧池、缺氧池、好氧池、二沉池、硝化液回流、污泥回流等工艺组合一体的高效脱磷脱氮A2/O组合工艺。
技术介绍
典型的A2/O工艺由厌氧、缺氧、好氧三部分矩形池体组成,简称A2/O,当改变厌氧、缺氧前后顺序时便成为倒置A2/O工艺,二沉池通常为圆形且单独设立。也有对布置成沟渠形的氧化沟将二沉池布置在中心,A2/O在二沉池外形成同心园,如中国专利CN03223656.5公开了“一种采用A2/O氧化沟工艺的污水处理装置”,自内向外依次为二沉淀池、厌氧沟、缺氧沟、好氧沟组成,沉淀池在氧化沟内,这种设计对于单组池体虽然节约了池与池之间的空地,共用墙壁也省去了池与池间的连接管,整个氧化沟组合成巨大的圆形,其不足之处有无内回流,对于总氮去除要求高的应用场合,需外加硝化液回流系统;受二沉池尺寸的限制,单池处理能力小,只适合小规模污水厂;虽单个大圆池占地小,但当设置二组及以上的应用场合,多个巨大的圆(或椭圆)形池形成圆池间的空地更多,造成了的土地资源的浪费变得更大;也有主体工艺为奥贝尔(Orbal)氧化沟的这种上述组合,但由于奥贝尔(Orbal)氧化沟无厌氧段,除磷效果受到影响,且奥贝尔(Orbal)氧化沟工艺的设计停留时间最小16小时,为高效除磷脱氮A2/O工艺设计停留时间最小8小时的两倍,占地造价都比较大;因此使前述两种组合工艺未得到广泛的应用推广;此外对含工业废水较多的场合由于COD较高和水量变化较大,必须设置水解酸化和调节池时,圆形或椭圆形池体和矩形池体在组 ...
【技术保护点】
高效除磷脱氮组合式污水处理装置,由一矩形池体和一椭圆形池体构成,其特征在于椭圆形池体位于矩形池体内,所述的矩形池体内壁与椭圆形池体外壁形成的区域设为好氧池,二沉池、厌氧池或者厌氧池与缺氧池设于椭圆形池体内,椭圆形池体是由平行的两面直墙以及直墙两端的半圆墙体连接而成,椭圆形池体一端布设一圆形二沉池,所述的圆形二沉池与椭圆形池体共享半圆墙体,二沉池外的椭圆形池体设计为厌氧池或厌氧池与缺氧池。
【技术特征摘要】
【专利技术属性】
技术研发人员:华伟,蒋岚岚,
申请(专利权)人:无锡市政设计研究院有限公司,
类型:发明
国别省市:32[中国|江苏]
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