United States

Scientists created a mobile desalination unit that can convert salt water into drinking water without filters – MIT, USA

Rather than filtering water, the ICP method uses an electrical field to apply to membranes above and below a water channel.

Negatively and positively charged particles, like viruses, salt molecules, and bacteria, are repelled by the membranes as they pass by. The charged particles are channeled into an additional stream of water, which is released later.


Desalination: Should California use the ocean to quench its thirst? – USA

Desal won’t save California from its thirst, because….

Groundwater keeps shrinking, reservoirs keep drying. Is it time for California to use desalinization to increase its depleted water supplies? How California gets water? To be clear, California already has 11 operating desalinization plants of varying sizes and around 10 more pending approval.

The Claude Bud Lewis Carlsbad Desalination Plant in Carlsbad is the largest desal plant in the country.

Lake Oroville, an important reservoir in Butte County, had sunk to 49% of capacity by July 1. Lake Shasta was at 39% capacity. Those are only two of many depleted reservoirs in the state’s water storage system. Every one of California’s 58 counties is under a drought emergency proclamation. As analysts know, drought drives California policy. So what has changed since the last drought?


Should California use the ocean to quench its thirst?

As the state’s water supplies continue to dwindle during this drought, it’s always worth weighing the pros and cons of desalinization to meet the state’s water needs Groundwater keeps shrinking, reservoirs keep drying.

Is it time for California to use desalinization to increase its depleted water supplies?

California is enduring another punishing drought, this one only a few years after the last one ended, which was the most severe drought in the state’s nearly 500 years of recorded history.

Low winter snowpack combined with scorching summer temperatures and the driest winter months in 100 years have severely impacted the state’s water supply.

Lake Oroville, an important reservoir in Butte County, had sunk to 49% of capacity by July 1. Lake Shasta was at 39% capacity.


Containerized solar water farms provide clean water, jobs for locals – Austin

More than 2 billion people globally lack access to clean drinking water, according to the Centers for Disease Control and Prevention.

Nonprofit organization GivePower is aiming to reduce that number by using the sun’s energy, shipping containers, desalination technology and local supply chains.

GivePower builds and delivers containerized solar-powered water farms that desalinate salty water.

The organization focuses on areas where “there’s an immediate and growing need for better access to safe water,” Kyle Stephan, told FreightWaves.


New water plant in Menifee removes salt, fights drought – California

A plant that removes salt from water is now running in Menifee, giving officials another tool to reduce their reliance on imported water as California’s drought continues.

The Eastern Municipal Water District opened its third groundwater desalination plant, the Perris II Groundwater Desalination Facility.

The plant will remove salt from underground water basins tapped by wells in Perris — nearly 5.4 million gallons of water per day.


Now is the time to secure Arizona’s water future – United States

Arizona is doing a lot of things well. Our economy is growing and diversifying at one of the fastest rates in the nation.

We recovered jobs lost during the pandemic before almost any other state, and unemployment has fallen to its lowest rate in nearly 50 years.

Businesses and new residents are moving here in droves to take advantage of the pro-growth policies we’ve adopted to make Arizona one of the most competitive and attractive places in the country to invest, expand and create jobs.

With the economic development pipeline full and showing no signs of slowing, we have reason to be optimistic. But we can’t be overconfident. Mother Nature is humbling us.


Monterey County elected officials to debate a change in desal law – California

Desalination projects have always been a contentious issue in Monterey County and a proposal that will be mulled by elected officials Tuesday afternoon is sure to raise the eyebrows of advocates for publicly owned desal projects.

The idea that will be presented to the Board of Supervisors during its afternoon session beginning at 1:30 p.m. is an amendment to an existing ordinance allowing only public ownership of desal plants rather than private ownership.

Tuesday’s action won’t approve or deny the ordinance, rather it will allow supervisors to give the nod to placing it on the June 21 agenda where they will consider what’s called a negative declaration, meaning under the California Environmental Quality Act requirements, the presiding governmental body finds that a project will have no significant environmental damage.


Rationing, saltwater toilets and desalination: How Catalina hopes to survive historic drought

Thirty years the town of Avalon on Catalina Island became the first city on the West Coast to have its own municipal desalination plant.

It was developing technology at the time, and the city hoped it would provide a stable source of drinking water on an island 23 miles off the coast of Southern California with few other options.

“I don’t know what we would have done without desalination,” said Avalon Mayor Anni Marshall, who has lived here for 38 years. “It’s been a huge help for us.”



The importance of a desalination plant cannot be understated in locales such as the Florida, Tampa Bay.

Tampa Bay Seawater Desalination facility is an alternative water supply providing up to 25 mgd of drinking water.

The plant is located in Apollo Beach, which withdraws and discharges up to 1.4 billion gallons a day for use as cooling water for the power plant.


California is in a water crisis, yet usage is way up. Officials are focused on the wrong problem, advocates say – California

California is facing a crisis. Not only are its reservoirs already at critically low levels due to unrelenting drought, residents and businesses across the state are also using more water now than they have in seven years, despite Gov. Gavin Newsom’s efforts to encourage just the opposite.

Newsom has pleaded with residents and businesses to reduce their water consumption by 15%. But in March, urban water usage was up by 19% compared to March 2020, the year the current drought began. It was the highest March water consumption since 2015, the State Water Resources Control Board reported earlier this week.

Part of the problem is that the urgency of the crisis isn’t breaking through to Californians. The messaging around water conservation varies across different authorities and jurisdictions, so people don’t have a clear idea of what applies to whom. And they certainly don’t have a tangible grasp on how much a 15% reduction is with respect to their own usage.