公开(公告)号：US5876606A

公开(公告)日：1999-03-02

申请号：US745734

申请日：1996-11-12

Applicant: David William Blowes ,  Carol Jane Ptacek ,  Michael John Baker

Inventor： David William Blowes ,  Carol Jane Ptacek ,  Michael John Baker

IPC: C02F3/04 ,  C02F3/10 ,  C02F3/28 ,  E03F1/00 ,  C02F1/28

CPC classification number: C02F3/2873 ,  C02F3/046 ,  C02F3/10 ,  E03F1/002 ,  Y02W10/15 ,  Y10S210/906 ,  Y10S210/908 ,  Y10S210/912 ,  Y10S210/914

Abstract: The metal oxide media includes oxides and hydroxides of iron, and other metals. The material is derived from basic-oxygen steel-making process, and includes a high calcium content. The oxide surfaces facilitate the adsorption of phosphorus, and the increased pH facilitates the precipitation of calcium and other phosphates. The oxides are a catalyst for converting organic phosphorus to inorganic form. Limestone may be added to the oxides, to ensure a long-term source of calcium, and to maintain high pH for long periods.

Abstract translation: 金属氧化物介质包括铁和其它金属的氧化物和氢氧化物。 该材料来自碱性氧制钢工艺，含有高钙含量。 氧化物表面促进磷的吸附，并且增加的pH促进钙和其它磷酸盐的沉淀。 氧化物是将有机磷转化为无机形式的催化剂。 石灰石可以添加到氧化物中，以确保长期的钙源，并长期保持高pH。