Abstract: The present disclosure provides a particulate matter comprising a combination of crystalline manganese oxide and amorphous manganese oxide, the crystalline form being present and forms passages throughout a cross section of said particulate matter, wherein said crystalline form define a specific surface area that is greater than the outer surface of said particulate matter. Also provided herein is a process for removing chemical contaminants from flowing water making use of the particulate matter and a device and a system comprising the particulate matter.

Abstract: Provided is a method of bioremediation of organic contaminated water within an annulus of an oil lubricated shaft, the method includes: (a) introducing into the annulus of said oil lubricated shaft an amount of a bioremediation combination including (i) a microbial cocktail capable of biodegrading the organic contaminants and (ii) nitrogen source, such that said bioremediation combination is brought into contact with water suspected of being contaminated in said annulus; and (b) supply into said annulus oxygen source for a time sufficient for biodegradation of at least a portion of said organic contaminants in the water within the annulus.

Abstract: The present disclosure provides a particulate matter comprising a combination of crystalline manganese oxide and amorphous manganese oxide, the crystalline form being present and forms passages throughout a cross section of said particulate matter, wherein said crystalline form define a specific surface area that is greater than the outer surface of said particulate matter. Also provided herein is a process for removing chemical contaminants from flowing water making use of the particulate matter and a device and a system comprising the particulate matter.

Abstract: An integrated jacking pipe comprising a concrete jacking envelope integrally-formed with and encircling a metal pipe, wherein said metal pipe comprises a spigot protruding from said concrete jacking envelope and a bell whose diameter is larger than a diameter of said spigot.

Abstract: A system and method for switching between flows of water solutions passed in groups of blocks of membrane pressure vessels arranged in parallel in a tapered flow system, wherein the system comprises a system inlet feed line, a system outlet flow line, high pressure booster pumps configured to provide a high pressure feed stream to the system; blocks of membrane pressure vessels arrayed in parallel, and a first and second bypass line each parallel to said blocks.

Abstract: Provided is a method of bioremediation of organic contaminated water within an annulus of an oil lubricated shaft, the method includes: (a) introducing into the annulus of said oil lubricated shaft an amount of a bioremediation combination including (i) a microbial cocktail capable of biodegrading the organic contaminants and (ii) nitrogen source, such that said bioremediation combination is brought into contact with water suspected of being contaminated in said annulus; and (b) supply into said annulus oxygen source for a time sufficient for biodegradation of at least a portion of said organic contaminants in the water within the annulus.

Abstract: Provided is a fluid flow valve including a housing including a fluid inlet port, and a fluid outlet port including an outlet aperture and a valve seating bounding the outlet aperture; a sealing-member configured to be biased, under fluid pressure within the housing, against the valve seating so as to seal the outlet aperture; a sealing-member displacing mechanism secured to the sealing-member so that displacement of the displacing mechanism in a first sense detaches the sealing-member from the valve seating so as to open the outlet aperture, while displacement of the displacing mechanism in an opposite sense allows for the sealing-member to become sealingly biased against the valve seating; and a sealing-member opening mechanism configured for displacing the sealing-member against the biasing effect of the displacing mechanism so as to discharge the fluid flow valve.

Abstract: Provided is a well pump system that includes a pressure pipe, a rotatable shaft surrounded by a plurality of bearings, a pumping mechanism mounted to the pressure pipe and having a plurality of pump impellers mounted to a second end of the shaft, a rotating mechanism mounted to a first end of the shaft and configured for rotating it within the bearings, thereby causing the pump impellers to move the fluid in the pressure pipe, and at least one non-return valve configured for assuming at least two states including a first, opened state, in which the second pipe chamber is in fluid communication with the first pipe chamber, and a second, closed state, in which the non-return valve obstructs the fluid communication between the first and the second pipe chambers, thereby lubricating them.

Abstract: Provided is a biosensor including a scaffold and a dye complex, the dye complex including a clay material associated with a dye material, where the dye complex is at least partially embedded in the scaffold. Also provided is a process for preparing the biosensor, an apparatus including the biosensor and methods for detecting viable microorganisms in an aqueous fluid test sample making use of the biosensor, for predicting biofouling in a fluid flowing system and for determining a concentration of disinfectant required to disinfect an aqueous fluid.

Abstract: Provided is a method for manipulating a membrane element within a pressure vessel including a central axis, a distal end, a proximal end and an inlet disposed at the proximal end. The membrane element has a membrane element front face with at least one fluid opening and a membrane element rear face. The membrane element is received within the pressure vessel such that the membrane element front face faces the proximal end, with a possibility to be moved along the central axis by an axial force applied to the membrane element front face. The method includes disposing a fluid-tight element in the pressure vessel to form a fluid chamber at the proximal end between the inlet and the fluid-tight element, and introducing fluid into the fluid chamber to displace the membrane element along the central axis in the direction towards the distal end of the pressure vessel.

Abstract: Provided is a pipe insulating joint for insulating in between a first pipe element and a second pipe element, wherein at least one of which includes an electrical current impressed therein. The pipe insulating joint including a pipe segment having a wall portion made of an electrical insulating material and coupling means for coupling the pipe segment between the first pipe element and the second pipe element, such that the electrical current is not transferred therebetween.

Abstract: Provided is a method for manipulating a membrane element within a pressure vessel including a central axis, a distal end, a proximal end and an inlet disposed at the proximal end. The membrane element has a membrane element front face with at least one fluid opening and a membrane element rear face. The membrane element is received within the pressure vessel such that the membrane element front face faces the proximal end, with a possibility to be moved along the central axis by an axial force applied to the membrane element front face. The method includes disposing a fluid-tight element in the pressure vessel to form a fluid chamber at the proximal end between the inlet and the fluid-tight element, and introducing fluid into the fluid chamber to displace the membrane element along the central axis in the direction towards the distal end of the pressure vessel.

Abstract: Provided is a well pump system that includes a pressure pipe, a rotatable shaft surrounded by a plurality of bearings, a pumping mechanism mounted to the pressure pipe and having a plurality of pump impellers mounted to a second end of the shaft, a rotating mechanism mounted to a first end of the shaft and configured for rotating it within the bearings, thereby causing the pump impellers to move the fluid in the pressure pipe, and at least one non-return valve configured for assuming at least two states including a first, opened state, in which the second pipe chamber is in fluid communication with the first pipe chamber, and a second, closed state, in which the non-return valve obstructs the fluid communication between the first and the second pipe chambers, thereby lubricating them.

Abstract: Provided is a biosensor including a scaffold and a dye complex, the dye complex including a clay material associated with a dye material, where the dye complex is at least partially embedded in the scaffold. Also provided is a process for preparing the biosensor, an apparatus including the biosensor and methods for detecting viable microorganisms in an aqueous fluid test sample making use of the biosensor, for predicting biofouling in a fluid flowing system and for determining a concentration of disinfectant required to disinfect an aqueous fluid.