The present invention relates to a water treatment system comprising a pre-filtering device receiving water, such as waste water, to be treated and providing a filtrate, and a biological treatment device being fluidic connectable to or in fluidic connection with the pre-filtering device for receiving the filtrate from the pre-filtering device. The biological treatment device is adapted to perform a biological treatment of the filtrate and to provide sludge solids. The pre-filtering device is a cake filtration device having a filtration cake wherein the filtration cake is being provided by deposition of solids from the sludge formed in the biological treatment device. A water treatment process employing the system and a method of forming a filter cake are also described.

A powdered composite filtration medium includes composite particles that include at least one diatomite particle and at least one expanded perlite particle sintered together. The composite powdered filtration medium may include from about 7 wt % to about 90 wt % diatomite, from about 93 wt % to about 10 wt % expanded perlite. Less than about 1% total crystalline silica may be present in the medium. The medium may have a permeability of at least 0.25 darcy. The diatomite and expanded perlite may be sintered or calcined with or without a fluxing agent.

A powdered composite filtration medium includes composite particles that include at least one diatomite particle and at least one expanded perlite particle sintered together. The composite powdered filtration medium may include from about 7 wt % to about 90 wt % diatomite, from about 93 wt % to about 10 wt % expanded perlite. Less than about 1% total crystalline silica may be present in the medium. The medium may have a permeability of at least 0.25 darcy. The diatomite and expanded perlite may be sintered or calcined with or without a fluxing agent.

A particulate material includes agglomerated diatomaceous earth and a silicone binder. A process for preparing a diatomaceous earth product includes agglomerating at least one natural diatomaceous earth with at least one silicone material, and subjecting the agglomerated diatomaceous earth to at least one heat treatment at a temperature ranging from about 600° C. to about 1,000° C. A filter aid composition includes a diatomaceous earth product including an agglomerated diatomaceous earth and a silicone material. A method of filtering at least one liquid includes passing the at least one liquid through at least one filter membrane including a diatomaceous earth product including agglomerated diatomaceous earth and a silicone material.

An oil deterioration prevention device is provided that can prevent an increase in pressure loss by reducing oilflow resistance. The oil deterioration prevention device may include a filtering unit including a filter element that filters oil, and a deterioration prevention unit including a powdery deterioration prevention agent that prevents deterioration of oil, wherein the deterioration prevention unit includes a passage wall that retains the deterioration prevention agent and forms an oil passage.

A filter monitor system (“FMS”) module is installed on the engine/vehicle and is connected to the filter systems, sensors and devices to monitor various performance parameters. The module also connects to the engine control module (“ECM”) and draws parameters from the ECM. The FMS module is capable of interfacing with various output devices such as a smartphone application, a display monitor, an OEM telematics system or a service technician's tool on a computer. The FMS module consists of hardware and software algorithms which constantly monitor filter systems and provide information to the end-user. FMS module provides necessary inputs and outputs for electronic sensors and devices.

A filter monitor system (“FMS”) module is installed on the engine/vehicle and is connected to the filter systems, sensors and devices to monitor various performance parameters. The module also connects to the engine control module (“ECM”) and draws parameters from the ECM. The FMS module is capable of interfacing with various output devices such as a smartphone application, a display monitor, an OEM telematics system or a service technician's tool on a computer. The FMS module consists of hardware and software algorithms which constantly monitor filter systems and provide information to the end-user. FMS module provides necessary inputs and outputs for electronic sensors and devices.

A method is provided for producing functionally improved carbolime from carbolime and the use of the functionally improved carbolime as a filtering aid, as filler, as lime fertilizer or as adsorbent for the adsorption of dyes.

A method is provided for producing functionally improved carbolime from carbolime and the use of the functionally improved carbolime as a filtering aid, as filler, as lime fertilizer or as adsorbent for the adsorption of dyes.

A regenerative filter that includes a filter housing having inlet and outlet zones; a fluid path provided between the inlet and outlet zones; a plurality of filter elements each having an outer surface filter media applied thereto and functioning to filter particulate or contaminants from the fluid path; and a tube sheet that is supported across the filter housing, that is disposed just before the outlet zone and that provides the support for the plurality of filter elements. The plurality of filter elements are disposed in an array and includes bridging members or elements that connect between adjacent filter elements, and that forms with the filter elements, a closed interstitial space between adjacent filter elements for liquid flow; a nanoscale barrier on interior surfaces, including that of the regenerative media itself, providing a mechanism to disrupt the cell wall of microscopic viruses and organisms.