1991年，在回顾了许多方法后，泽农确定: 膜最终将成为最具成本效益和最可靠的饮用技术 水处理。浸入式膜与加压膜的不同之处在于压力 不使用容器。取而代之的是，将无壳中空纤维浸入一个向容器开放的容器中 空气和轻轻的吸力通过纤维吸入干净的水。通过 使用水箱向大气开放，ZENON的浸入式膜技术 符合水厂的正常运行方式，同时节省了成本 压力容器。此外，通过使用较低的跨膜压力（吸入）， ZENON能够最大限度地减少污垢。 自1991年以来，ZENON不断进化出新一代浸入式膜。这个 前四代被称为ZeeWeed（R）150和ZeeWeed（R）500 a、b和c。 这些 膜被设计用于处理几乎任何浊度的水，以及 高固体分应用，如直接添加混凝剂或过滤器反洗处理。 ZeeWeed（R）1000是ZENON的第五代浸入式膜技术 是为低固体分给水设计的，设计的主要重点是最小化 生命周期成本。ZeeWeed（R）1000系统中使用的超滤膜具有 与前代膜相同的膜化学和绝对孔径，因此 去除悬浮固体、原生动物、细菌和病毒。 本文分析了ZeeWeed（R）1000产品的关键产品和操作特点。 本文介绍了ZeeWeed（R）1000膜的各种设计和应用 来自试点和全面运营的数据。 包括参考资料、表格、图表。

In 1991, after reviewing a number of approaches, ZENON determined that immersed membranes would ultimately be the most cost effective and reliable technology for drinking water treatment. Immersed membranes differ from pressurized membranes in that pressure vessels are not used. Instead, shell-less hollow fibers are immersed into a tank open to the atmosphere and a gentle suction is applied to draw clean water through the fibers. Through the use of tanks open to the atmosphere, ZENON's immersed membrane technology conforms to the normal manner that water plants are operated while saving the cost of pressure vessels. Furthermore, through the use of low trans-membrane pressures (suction), ZENON was able to minimize fouling. Since 1991, ZENON has continually evolved new generations of immersed membranes. The first four generations are referred to as ZeeWeed(R) 150 and ZeeWeed(R) 500 a, b, and c. These membranes have been designed to handle water of almost any level of turbidity as well as very high solids applications such as direct coagulant addition or filter backwash treatment. The ZeeWeed(R) 1000 is ZENON's fifth generation of immersed membrane technology that has been designed for low solids feed water with the primary focus of design on minimizing life cycle costs. The ultrafiltration membrane used in the ZeeWeed(R) 1000 system has the same membrane chemistry and absolute pore size as its predecessors and therefore also removes suspended solids, protozoa, bacteria and viruses. This paper examines the key product and operating features of the ZeeWeed(R) 1000 product. Various designs and applications of the ZeeWeed(R) 1000 membrane are presented in this paper with data from both pilot and full-scale operations. Includes reference, tables, figures.