公开(公告)号：WO2006054954A1

公开(公告)日：2006-05-26

申请号：PCT/SG2005/000400

申请日：2005-11-22

Applicant: WATER AND ENVIRONMENTAL TECHNOLOGIES PTE. LTD ,  TANG, Tsen Meng ,  TAN, Hsing Loong ,  WANG, Danmei

Inventor： TANG, Tsen Meng ,  TAN, Hsing Loong ,  WANG, Danmei

IPC: B01J21/06 ,  B01J19/12 ,  B01J19/24 ,  B01J23/06 ,  C02F1/30

CPC classification number: C02F1/725 ,  B01D53/885 ,  B01D2255/20707 ,  B01D2255/802 ,  B01D2257/106 ,  B01D2257/20 ,  B01D2257/708 ,  B01D2257/90 ,  B01J23/48 ,  B01J35/004 ,  B01J37/0221 ,  B01J37/0242 ,  B82Y30/00 ,  C02F1/32 ,  C02F2101/322 ,  C02F2303/02 ,  C02F2305/08 ,  C02F2305/10

Abstract: The invention relates to the purification of a fluid medium, for example air or water, and more particularly to the adsorption and/or degradation of organic pollutants in water and also to accelerate total organic carbon (TOC) reduction, chlorine destruction and ozone destruction. The invention describes a novel photocatalyst which comprises a layered nano-structured semiconductor doped with a material selected from the group consisting of a metal, a metal alloy, a metal oxide and mixtures thereof, said material being located between the layers of semiconductor, and the layered nano-structured semiconductor being attached to a substrate which may be easily removed from the fluid medium. The novel photocatalyst may be used together with a light source with a wavelength that will activate the photocatalyst for purification of fluids by adsorption and/or degradation of pollutants. An object of the present invention is to apply this invention to a practical fluid purification system for either commercial or domestic use, or by improving existing systems, for example for the purification of potable water or for treating water from natural sources such as reservoirs, streams, groundwater or even wastewater for reuse.

Abstract translation: 本发明涉及流体介质（例如空气或水）的净化，更具体地涉及水中有机污染物的吸附和/或降解，还有助于加速总有机碳（TOC）还原，氯破坏和臭氧破坏。 本发明描述了一种新型光催化剂，其包括掺杂有选自金属，金属合金，金属氧化物及其混合物的材料的层状纳米结构半导体，所述材料位于半导体层之间， 层状纳米结构半导体附着到可以容易地从流体介质去除的基底上。 新型光催化剂可以与波长一起使用的光源一起使用，该光源将激活光催化剂，以通过污染物的吸附和/或降解来净化流体。 本发明的目的是将本发明应用于商业或家用的实用流体净化系统，或通过改进现有的系统，例如用于净化饮用水或用于处理来自天然来源例如储存器，流 ，地下水甚至废水再利用。

公开(公告)号：WO2005097368A1

公开(公告)日：2005-10-20

申请号：PCT/SG2005/000117

申请日：2005-04-07

Applicant: NEWEARTH PTE LTD ,  TANG, Tsen, Meng ,  TAN, Hsing, Loong ,  WANG, Danmei

Inventor： TANG, Tsen, Meng ,  TAN, Hsing, Loong ,  WANG, Danmei

IPC: B09B3/00

CPC classification number: C04B35/6316 ,  B09B3/005 ,  B09C1/067 ,  C02F11/008 ,  C02F2101/20 ,  C04B33/1327 ,  C04B33/30 ,  C04B33/32 ,  C04B35/62605 ,  C04B35/6261 ,  C04B35/6263 ,  C04B35/62655 ,  C04B35/63 ,  C04B35/6313 ,  C04B2235/3217 ,  C04B2235/3218 ,  C04B2235/3427 ,  C04B2235/3463 ,  C04B2235/6562 ,  F23G5/006 ,  F23G5/02 ,  F23G5/085 ,  F23G7/00 ,  F23G2201/701 ,  F23G2201/702 ,  F23G2202/20 ,  F23G2209/12 ,  F23G2209/24 ,  F23G2209/30 ,  Y02P40/69

Abstract: A method is provided for heavy metal stabilisation comprising: mixing waste, comprising heavy metals, with molecular sieve with the proviso that carbon-based molecular sieve is excluded, and clay; and vitrifying the mixture. In particular, a method comprising the steps of: preparing a pre-stabilised mixture by mixing waste, comprising heavy metals, with the molecular sieve, and optionally other chemicals; mixing the pre-stabilised mixture with clay; and vitrifying the obtained mixture is provided. It also provides a product comprising heavy metals that have been stabilised into the structure of the clay-based ceramic matrix, wherein the product is a vitrified product of a mixture of at least waste, comprising heavy metals, molecular sieve (with the proviso that carbon-based molecular sieve is excluded) and clay.

Abstract translation: 提供了一种用于重金属稳定化的方法，其包括：将包含重金属的废物与分子筛混合，条件是排除碳基分子筛和粘土; 并使混合物玻璃化。 特别地，一种方法包括以下步骤：通过将包含重金属的废物与分子筛和任选的其它化学品混合来制备预稳定的混合物; 将预稳定的混合物与粘土混合; 并提供所得混合物的玻璃化。 它还提供了一种包含已经稳定在粘土基陶瓷基体的结构中的重金属的产品，其中该产品是至少包含重金属的废物的混合物的玻璃化产物，分子筛（条件是碳 的分子筛）和粘土。