公开(公告)号：WO1997011914A1

公开(公告)日：1997-04-03

申请号：PCT/US1996014699

申请日：1996-09-13

Applicant: TECHNICAT, INC.

Inventor： TECHNICAT, INC.

IPC: C02F01/70

CPC classification number: C02F1/66 ,  B01J16/005 ,  B01J35/0006 ,  C02F1/46176 ,  C02F1/48 ,  C02F2101/163 ,  C02F2101/166 ,  C02F2303/22

Abstract: A water treatment arrangement (1) is provided in which water is given a reduced pH by a first catalyst comprising a primary catatalyst unit (18) and is then caused to flow over a second catalyst comprising a secondary catalyst unit (24). The second catalyst changes nitrates, nitrites, phosphates, salts and other contaminants from reactive to nonreactive form. The first catalyst may be palladium and the second catalyst an alloy containing copper, tin, nickel and zinc. The first catalyst prevents precipitants from coating the second catalyst and also increases the supply of oxygen in the water. Preferably, a third catalyst, also palladium, is included in a catalyst unit (41) downstream of the second catalyst. The first and third catalysts include longitudinal vanes having louvers to present a large surface area and create turbulence. The second catalyst is a tubular assembly with ribs and grooves also to create turbulence and removal of the stagnant boundary layer from the catalyst's surface. The catalysts are in an end-to-end abutting relationship within a housing (13) of corrosion-resistant material.

Abstract translation: 提供了一种水处理装置（1），其中通过包含主催化剂单元（18）的第一催化剂给予水降低的pH，然后使其流过包含二级催化剂单元（24）的第二催化剂。 第二种催化剂将硝酸盐，亚硝酸盐，磷酸盐，盐和其他污染物从反应性形式转化为非反应性形式。 第一催化剂可以是钯，第二催化剂是含有铜，锡，镍和锌的合金。 第一催化剂防止沉淀剂涂覆第二催化剂并且还增加水中的氧气供应。 优选地，在第二催化剂下游的催化剂单元（41）中还包括第三催化剂，也是钯。 第一和第三催化剂包括具有百叶窗以呈现大的表面积并产生湍流的纵向叶片。 第二催化剂是具有肋和凹槽的管状组件，其也产生紊流并从催化剂表面除去停滞边界层。 催化剂在耐腐蚀材料的壳体（13）内处于端对端邻接关系。