公开(公告)号：US20050023220A1

公开(公告)日：2005-02-03

申请号：US10710686

申请日：2004-07-28

Applicant: Phillip Barak ,  Menachem Tabanpour ,  Mauricio Avila-Segura ,  Juliane Meyer

Inventor： Phillip Barak ,  Menachem Tabanpour ,  Mauricio Avila-Segura ,  Juliane Meyer

IPC: B01D61/00 ,  B01D61/24 ,  C02F1/44 ,  C02F11/12

CPC classification number: B01D61/24 ,  B82Y30/00 ,  C02F1/44 ,  C02F11/121 ,  C02F2101/105 ,  C02F2209/06 ,  Y10S210/903 ,  Y10S210/906 ,  Y10S423/14

Abstract: The present invention provides a method and apparatus for removing phosphorus from phosphorus containing waste. In one embodiment, the method is preferably carried out by contacting the phosphorus containing waste with a non-cellular membrane and precipitating phosphorus from the waste as struvite. Another aspect of the invention includes a method of removing phosphorus from phosphorus containing sewage comprising filtrates and biosolids. The removal of phosphorus as struvite occurs in two stages as primary and secondary removal. In the primary removal process, the sewage from a dewatering unit is contacted with a first polymeric membrane reactor and the phosphorus is removed as primary struvite. Subsequently Mg is added so as promote struvite formation and the secondary removal process of struvite. In the secondary removal process, the sewage from GBT Filtrate well or Centrifuge Liquor well is contacted with a second monomolecular membrane and the phosphorus is removed as secondary struvite.

Abstract translation: 本发明提供一种从含磷废物中除磷的方法和装置。 在一个实施方案中，优选通过使含磷废物与非细胞膜接触并将来自废物的磷作为鸟粪石沉淀来进行。 本发明的另一方面包括从包含滤液和生物固体的含磷污水中除去磷的方法。 作为鸟粪石的磷的去除作为主要和次要的去除分两个阶段发生。 在主要去除工艺中，来自脱水单元的污水与第一聚合物膜反应器接触，并且作为主要的鸟粪石除去磷。 随后添加Mg，以促进鸟粪石形成和鸟粪二次去除过程。 在二次除磷过程中，将GBT滤液或离心机中的污水与第二单分子膜接触，并将磷作为次级溶液除去。