Abstract:
Devices and methods associated with these devices for significantly improving the efficiency of an existing or new treatment unit having a granular media filter bed supported above an underdrain for removing impurities passing through the filter bed. The devices and methods are specifically designed to prevent clogging of the underdrain to improve the operation and efficiency of the treatment unit. The devices and methods are directed to providing trapping structures and methods that allow a washing fluid to pass through the trapping structures but traps impurities in the washing fluid that have the potential of partially or completely clogging the underdrain. Further, one or more sensors are provided to determine if the trapping structure is performing properly.
Abstract:
A method and system for treating oilfield produced water is disclosed. The method includes passing oilfield produced water through a chain of filters, first filter configured to filter particles of a size larger than 10 μm from the water, a second filter configured to filter remaining particles of a size larger than 2 μm from the water and a third filter configured to filter remaining particles of a size larger than 0.5 μm from the water and automatically cleaning at least one of the filters.
Abstract:
A filter system includes a set of modules, each module including screen assemblies and filter media sandwiched between the screen assemblies. A plurality of control assemblies are associated with each of the modules. Each of the control assemblies is in fluid communication with a corresponding module to control flow through the corresponding module. The control assemblies selectively control fluid in each of the modules between at least one of a forward flow through the screen assemblies to treat an influent flow, a bypass flow to bypass at least one of the modules, and a reverse flow to backwash a given filter media. A method of filtering influent includes providing an influent flow to a set of modules, each module including screen assemblies and filter media sandwiched between the screen assemblies. The influent is filtered by directing the influent through the set of modules. A given module is bypassed when the given module becomes occluded. The occluded module is backwashed by providing a reverse flow through the screen assemblies and the filter media.
Abstract:
A simplified filtering system capable of repeating filtration of liquid and cleaning of the filter of the system with the filtrate alternately by use of simple electric control means and valvular means.
Abstract:
A method of filtering water in a system comprising a regenerative media filter is disclosed. The method includes operating the system in a filtration mode, operating the system in a cleaning mode responsive to a differential pressure measurement across the regenerative media filter, and operating the system in a pre-filtration mode after operating the system in the cleaning mode. A water filtration system is also disclosed. The water filtration system includes a regenerative media filter vessel, a pressure sensor subsystem, a filtrate line, a feed line, a recirculation line, a plurality of valves, at least one pump, and a controller. The controller is configured to direct the water through the system. A method of facilitating filtration of aquatic or recreational facilities water is also disclosed. The method includes providing a water filtration system and providing a controller.
Abstract:
A filter appliance including a dilution device, wherein the diluted portion remains largely constant when the entire volume flow is modified. Said filter device is characterized in that the flow characteristic—defined by the pressure loss function ΔpB({dot over (V)}B)—of the constituents of the dilution line B is adapted to the flow characteristic defined by the pressure loss function ΔpA({dot over (V)}A)—of the constituents of the filter line A, in such a way that the dilution condition holds good for at least one diluted portion X where X={dot over (V)}B/{dot over (V)}A+{dot over (V)}B for volume flows between be {dot over (V)}1=10 liters per hour and {dot over (V)}2=120 liters per hour, first volume flow range, for at least one second volume flow range of at least 5 liters per hour inside the first volume flow range, ΔpA({dot over (V)}A) designating the pressure drop over the dilution line B according to the respective volume flows {dot over (V)}A, {dot over (V)}B in liters/min of the water in lines A and B.
Abstract translation:一种包括稀释装置的过滤器具,其中当整个体积流被改变时,所述稀释部分保持大体恒定。 所述过滤装置的特征在于,由稀释管线B的组分的压力损失函数Deltap B({dot over(V B B))限定的流动特性 适应于以这种方式由过滤器管线A的组成部分的压力损失函数Deltap SUB>({dot over(V SUB))定义的流动特性 稀释条件对于至少一个稀释部分X是有利的,其中X = {点越过(V SUB + / {点越过(V + A + 体积流量的B B / B SUB>为{点数以上(V <1> 10升/小时)和{点数(V 2> 2/120升/小时, 第一体积流量范围,对于在第一体积流量范围内至少5升/小时的至少一个第二体积流量范围,Deltap&lt; A&lt; )根据相应的体积流量指定稀释管线B上的压力降(点击上方(V SUB),{水平(V B B)/ W / W r在A和B行
Abstract:
A filter system includes a set of modules, each module including screen assemblies and filter media sandwiched between the screen assemblies. A plurality of control assemblies are associated with each of the modules. Each of the control assemblies is in fluid communication with a corresponding module to control flow through the corresponding module. The control assemblies selectively control fluid in each of the modules between at least one of a forward flow through the screen assemblies to treat an influent flow, a bypass flow to bypass at least one of the modules, and a reverse flow to backwash a given filter media. A method of filtering influent includes providing an influent flow to a set of modules, each module including screen assemblies and filter media sandwiched between the screen assemblies. The influent is filtered by directing the influent through the set of modules. A given module is bypassed when the given module becomes occluded. The occluded module is backwashed by providing a reverse flow through the screen assemblies and the filter media.