A permeable membrane tube to separate mixed fluids is provided, including a cyclone generator configured to cause fluid entering the permeable tube to flow in a spiral direction. The cyclonic generator may be a plug positioned at the fluid entrance of the membrane tube. The fluid passes through the permeable membrane tube, which has a center axis along a length of the tube, and flows in the spiral direction thereby separating the fluid into first and second portions, wherein the first portion comprises fluid having a greater density than the second portion and the first portion is directed to an inner surface of the tube.

The present invention provides method for separating contaminants from a liquid mixture comprising the steps of a) providing a feed of said liquid mixture to be purified, b) adding a separation aid to the liquid mixture to be purified, wherein said separation aid is capable of binding said contaminants and c) supplying a flow of compressed air into said feed after step b) has been performed to provide a feed comprising air. The method further comprises steps d) removing air from said feed comprising air to provide a deaerated feed; and e) supplying said deaerated feed to a separator, and f) separating a phase comprising contaminants and said separation aid from said liquid mixture in said separator, wherein the separation aid added in step b) is insoluble in said liquid mixture at the separation conditions in step f). The present invention further provides a system for separating contaminants from a liquid mixture.

The present invention relates to a method for liquid media purification, such as potable water, where biological and chemical composition of fluid to be purified is enhanced. The invention also relates to a device for carrying out said method. According to the invention, the liquid is purified by removing coarse particles from said liquid on first filtering means (2), dispersing the liquid with at least one nozzle (3) into a working chamber (4), where it is exposed to a working pressure and gas or gas mixture is introduced in the chamber from at least one inlet aperture (5).

Systems and methods related to desalination systems are described herein. According to some embodiments, the desalination systems are transiently operated and/or configured to facilitate transient operation. In some embodiments, a liquid stream comprising water and at least one dissolved salt is circulated through a fluidic circuit comprising a desalination system. In some embodiments, a portion of the desalination system (e.g., a humidifier) is configured to remove at least a portion of the water from the liquid stream to produce a concentrated brine stream enriched in the dissolved salt. In certain cases, the concentrated brine stream is recirculated through the fluidic circuit until the concentrated brine stream reaches a relatively high density (e.g., at least about 10 pounds per gallon) and/or a relatively high salinity (e.g., a total dissolved salt concentration of at least about 25 wt %). In certain embodiments, additional salt is added to the concentrated brine stream to produce an ultra-high-density brine stream (e.g., a brine stream having a density of at least about 11.7 pounds per gallon). Some aspects relate to a system that is configured to promote energy efficiency by recovering heat from the recirculated concentrated brine stream upon discharge from the fluidic circuit.

A system and method of performing oil displacement by a water-gas dispersion system includes a micro-bubble generation apparatus, a gas source, an ultrasonic oscillation controller, a protective barrel and a support. A first opening is provided in a top end of the protective barrel, into which an internal apparatus enters and is extracted, the first opening is sealed by an end cover. A second opening communicating with a water flooding pipeline is provided in a side wall of the protective barrel, into which fluid flows and from which the fluid exits. The micro-bubble generation apparatus is fixed within the protective barrel by the support. The gas source is connected with the micro-bubble generation apparatus through a gas pipeline, for transporting gas to the micro-bubble generation apparatus. The ultrasonic oscillation controller is connected to the micro-bubble generation apparatus through a signal line, for controlling the micro-bubble generation apparatus to generate micro-bubbles.

The invention is directed to a liquid container monitoring and maintenance system. In an aspect, the liquid container monitoring and maintenance system (LCMMS) is a self-contained system that is compatible to monitor and maintain various liquids stored in various types and sizes of containers. In such aspects, the LCMMS is an all in one solution for monitoring and maintaining the liquid within the container. The LCMMS is configured to be an external system that can couple to various storage containers via various access ports. The LCMMS is configured to automatically monitor and maintain the liquid contained within the container. In an aspect, the LCMMS can be remotely controlled, as well as provide reporting to various users.

Flotation separation apparatus and methods are described herein, comprising a vessel having a plurality of flow guides oriented vertically in the vessel, a liquid inlet at a lower part of the vessel, a gas inlet at the lower part of the vessel, a first liquid outlet at an upper part of the vessel, a second liquid outlet at the lower part of the vessel, and a gas outlet at the upper part of the vessel.

A FOG (Fats, Oil, or Grease) separator apparatus includes (1) a first reservoir or chamber having a wastewater inlet configured to receive wastewater containing FOG; (2) a second reservoir or chamber which is separated from the first reservoir by a first 5 weir configured to permit overflow of at least FOG from the first reservoir to the second reservoir; and (3) a third reservoir or chamber separated from the second reservoir by a second weir configured to permit overflow of at least FOG from the second reservoir to the third reservoir.

A method of treating oil and gas produced water may include: receiving produced water from one or more wells; separating an aqueous portion of the produced water from oil and solids included in the produced water in order to provide recovered water; performing anaerobic bio-digestion of organic matter included in the produced water using a biomass mixture of anaerobic bacteria obtained from a plurality of wells; aerating the recovered water in order to promote metal precipitation; and performing aerobic bio-digestion of organic matter present in the recovered water. Some embodiments may also include one or more of anoxic equalization, filtration, pasteurization, reverse osmosis, and biocide treatment of the recovered water. The recovered water may be used for oil and gas well fracking and/or land and stream application. Other methods of treating oil and gas produced water are also described.

The present invention discloses intelligent oil sludge treatment apparatuses and treatment processes. The treatment apparatus includes an integrative machine, an oil removal machine, a separation machine, a sludge collection tank, a dewatering machine, a pyrolysis machine, an agent tank, a deodorization tower, a crude oil tank, a light oil tank, a separator, a condenser, a desulfurization tower, a clean water tank, a sewage plant, and a steam boiler, where an outlet of the integrative machine is connected to an inlet of the oil removal machine; the oil removal machine is configured to remove crude oil from oil slurry; the oil removal machine collects the crude oil to the crude oil tank, discharges stench into the deodorization tower, and discharges the slurry into the separation machine; the separation machine is configured to perform a solid-liquid separation operation; the dewatering machine is configured to evaporate water and then convey same into the condenser, and to convey dry sludge into the pyrolysis machine; the pyrolysis machine is configured to convey pyrolysis gas into the condenser; the condenser is configured to discharge a condensate into the separator; an outlet of the separator is connected to the sewage plant and the light oil tank, separately; an inlet of the desulfurization tower is connected to the condenser, and an outlet thereof is connected to the steam boiler; the clean water tank is configured to supply a water source; and the steam boiler provides a heat source for the integrative machine and the oil removal machine.