A docking station at a service site fluidly connectable to a mobile water treatment system having one or more deionization units comprises a fluid inlet configured to receive processed water from the mobile water treatment system and a fluid outlet configured to deliver the processed water to a point of use. The docking station also comprises a monitoring system configured to monitor at least one water quality parameter of the processed water, and a processor configured to receive the monitored water quality parameter and communicate with a central monitoring system disposed remotely from the station regarding the monitored water quality parameter.

An automated modular filtration system, particularly for low volume tangential flow filtration processes, comprises a plurality of filtration modules formed as separate assemblies and at least one control unit for jointly controlling filtration processes of individual filtration units. Each filtration module contains at least one individual filtration unit for executing a filtration process independent of the other filtration units, first input ports for receiving a first type of fluids, second input ports for receiving a second type of fluids, and exit ports for outputting unused system fluids. First type fluids are process fluids are specific to the filtration processes executed in individual filtration units. Second type fluids are system fluids not specific to filtration processes executed in the individual filtration units. The second input and exit ports establish inter-module connections so system fluids can be forwarded from one filtration module to an adjacent filtration module of the filtration system.

A reverse osmosis desalination system has a combined displacement pump and displacement pressure recovery motor that propagate feed water with a structurally fixed recovery rate and structurally stabilized volume flow through continuously alternating discharging and recirculation intervals. Thereby enabled is an instantaneous discharge of the entire feed water concentrate and unmixed replacement with low salinity source water that intermittingly and effectively flushes the reverse osmosis membranes. This in turn provides for high recirculation peak salinity and recovery rate that are simple and reliably controlled without impairing membrane longevity.

A method of predicting membrane fouling in a reverse osmosis process includes collecting information relative to the reverse osmosis process being performed over a predetermined period of time, the collected information including a process factor and a water quality factor, the process factor including a produced water flow rate; calculating a salt removal rate and a pressure drop based on the collected information; normalizing the produced water flow rate, the salt removal rate, and the pressure drop; generating a prediction equation using normalized values of the produced water flow rate, the salt removal rate, and the pressure drop values; and predicting membrane fouling through the generated prediction equation to determine a chemical cleaning time. Process and water quality factors are normalized to temperature and/or flow rate, and the prediction equation uses the normalized factors. Both short-term and long-term predictions are made for chemical cleaning time and membrane module replacement time.

There is provided a retrofit control module that is connectable to various types of reverse osmosis systems, and a method of using the same. The retrofit control module includes a controller, the controller being located within a housing. The controller includes a first communication interface, the first communication interface being connectable to the reverse osmosis system, a processing unit and a memory connected to the processing unit. The processing unit is configured for receiving at least one parameter of the reverse osmosis system, comparing the at least one parameter of the reverse osmosis system with a predetermined threshold and in response to the at least one parameter of the reverse osmosis system being above the predetermined threshold: transmitting a control parameter to the reverse osmosis system, the control parameter causing the reverse osmosis system to control at least one component of the reverse osmosis system.

Apparatus and processes for controlling a reverse osmosis system for water desalination to reduce energy consumption. The system has a controller configured to receive information from the sensor array and determine a fouling parameter for each reverse-osmosis stage based on one or more of: an A-Value, a B-value and a normalized differential pressure. The controller is then configured to control the flow through each of the reverse-osmosis assemblies based on the determined fouling parameters to meet a predetermined criterion for total permeate production for the reverse-osmosis system.

The present disclosure provides a complete set of equipment for supplying drinking water in field. The complete set of equipment for supplying drinking water in field consists of several units carried by single person, making the water purification equipment easy to use and transport. The complete set of equipment includes a multistage filtration unit, a reverse osmosis unit, and a power control unit connected by a plug-in pipeline.

A car washing system comprises a filtering unit, a pure water pipeline, a waste water pipeline, a washing pipeline, an optional first branch line, and a second branch line. The filtering unit comprises an RO filter membrane, a filtering pipeline and a booster pump. One end of the filtering pipeline is connected to the inlet of the RO filter membrane. The booster pump is set in the filtering pipeline. The pure water pipeline is connected between a pure water outlet of the RO filter membrane and one end of the washing pipeline. The joint of the pure water pipeline and the washing pipeline is provided with a high-pressure pump. One end of the waste water pipeline is connected with waste water outlet of the RO filtering membrane, and the other end is a discharge end. The second branch line is connected between the waste water pipeline and the washing pipeline.

The present invention provides a fresh water generator operating method and a determination program that are employed in a method for cleaning a separation membrane module following membrane filtration, and that, while various cleaning steps such as reverse pressure cleaning, air cleaning, chemical solution cleaning are taking place after completion of the membrane filtration, determines cleaning troubles by calculating a temporal change in resistance increase rate on the basis of an increase in membrane differential pressure.

A system and a method for water purification are provided. An exemplary system includes a multimedia filter, an ozone generator, an ozone contactor coupled to the ozone generator, and a ceramic membrane filter coupled to an air scouring system, wherein the air scouring system is coupled to the ozone generator. A storage tank is coupled to a purified water line from the ceramic membrane filter, wherein the storage tank is coupled to a backwashing line coupled to the multimedia filter.