ALBUQUERQUE, N.M.--(BUSINESS WIRE)--Jun 22, 2026--
Sigma Advanced Technologies today announced the launch of its next‑generation mobile all‑in‑one ozone water treatment containers, engineered to transform how industrial operators manage and reuse wastewater. Designed for maximum flexibility and performance, these modular treatment units can process everything from low‑flow industrial waste streams to high‑volume waters reaching up to 100,000 barrels per day—including Produced Water from oil and gas operations.
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Built for rapid deployment and seamless integration into existing field infrastructure, Sigma’s treatment containers deliver a powerful combination of mobility, efficiency, and advanced oxidation technology. By leveraging high‑concentration ozone treatment within a compact, self‑contained system, the units provide a chemical‑free, environmentally responsible solution for operators seeking to reduce freshwater demand and improve sustainability across their operations.
“Water management is one of the most pressing challenges facing industrial and energy producers today,” said Robert (Bob) Sachs, CEO at Sigma Advanced Technologies. “Our experience in the harsh, remote environment of the Permian Basin has led us to develop the most robust, safe solution for water treatment. The mobile ozone treatment systems give operators the ability to treat and reuse water at the source, at any scale, without the complexity or footprint of traditional treatment facilities. It’s a major step forward for cost‑effective, sustainable water stewardship.”
Key Features and Capabilities
Sigma’s new treatment systems are already in use across the oil & gas sector, where Produced Water volumes continue to rise and regulatory pressures around water reuse are intensifying. By offering a mobile, high‑throughput solution, the company aims to help operators reduce costs, improve environmental performance, and unlock new efficiencies in water management.
Sigma Water | Harnessing the Power of Ozone for Sustainable Water Remediation
A federal judge has blocked an attempt by the Trump administration to subpoena Minnesota Gov. Tim Walz and other state officials, calling it an effort to “harass and retaliate against them.”
In a ruling unsealed Monday, U.S. District Judge Patrick Schlitz found the “dominant purpose” of the subpoenas was to “coerce Minnesota officials into assisting the federal government with enforcing civil immigration law and to harass and retaliate against them for failing to do so.”
The subpoenas seeking records were served in January as part of an investigation into whether Walz and other officials obstructed or impeded law enforcement during a sweeping immigration operation in the Minneapolis-St. Paul area. They were sent to the offices of Walz, Attorney General Keith Ellison, Minneapolis Mayor Jacob Frey, St. Paul Mayor Kaohly Her and officials in Ramsey and Hennepin counties.
The ruling is the latest rebuke by the federal judiciary of Justice Department efforts to aggressively implement the Trump administration agenda in courts and target the president’s political adversaries through subpoenas and similar demands.
The judge ruled that there appeared to be “extremely weak to nonexistent” connections between the information sought in the subpoenas and any possible criminal violation. The subpoenas seek materials “that largely if not entirely relate to constitutionally protected conduct,” the judge wrote, noting that Minnesota has the legal right not to devote its resources to enforcing federal immigration law.
The Justice Department “is not conducting a criminal investigation,” the judge wrote, “but is instead using the grand jury process for other (unlawful) purposes.”
The evidence that the subpoenas were issued for unlawful reasons is overwhelming, the judge said, arguing that the Justice Department “has struggled — without success — to identify a single plausible investigatory justification” for them.
The Justice Department didn’t immediately respond to an email seeking comment.
Walz, in a statement, called the ruling “a victory for the rule of law and our democracy.”
“The U.S. Justice Department is pursuing criminal investigations into the President’s political opponents,” said Walz, the 2024 Democratic nominee for vice president. “This case was just one example of that, but we are seeing daily reminders of this administration’s lawlessness — in Minnesota and around the country. We all must continue to seek justice and uphold the rule of law.”
Ellison said “it should disturb every American that Donald Trump is weaponizing the criminal justice system against people he disagrees with.”
The subpoenas “a politically motivated retaliation against our city for lawfully standing up to ICE and fighting for our residents,” Her said in a statement, referring to U.S. Immigration and Customs Enforcement.
Frey said the investigation was “never about justice, law, and order, but the absence of it."
“Subpoenaing political opponents because they spoke on behalf of their constituents violates the core tenets of our democracy and human decency,” he said.
Frey also observed that criticizing government action is not a crime.
“One of the defining strengths of our democracy is the ability to challenge those in power without fear of retribution. Elected officials have both the right and the responsibility to speak honestly about how government decisions affect the people they serve,” he said.
Over the last year, judges have dismissed indictments against two prominent Trump foes, former FBI Director James Comey and New York Attorney General Letitia James, and grand juries have repeatedly refused to return indictments sought by the Justice Department.
The moves reflect mounting public concerns that the Justice Department, an institution meant to make investigative and prosecution decisions independent of the White House, is being politicized under the current Trump administration.
Vice President JD Vance has separately called on the Justice Department to investigate Walz and Ellison over allegations they failed to stop widespread social services fraud, though the department has not said whether it will open an investigation. Walz and Ellison have described those allegations as politically motivated and defended their efforts to combat fraud in Minnesota.
FILE - Protesters demonstrate against Immigration and Customs Enforcement (ICE) after Renee Good, who was fatally shot by an ICE officer earlier, Jan. 12, 2026, in Minneapolis. (AP Photo/Jen Golbeck, File)
FILE - Minneapolis Mayor Jacob Frey speaks during the 94th Winter Meeting of the U.S. Conference of Mayors, Jan. 29, 2026 in Washington. (AP Photo/Kevin Wolf, File)
CORRECTS PRETTY TO PRETTI - Minnesota Gov. Tim Walz, right, and Attorney General Keith Ellison discuss the shooting of Alex Pretti during a news conference in Blaine, Minn., Sunday, Jan. 25, 2026. (AP Photo/Abbie Parr)
FILE - Federal immigration officers deploy tear gas at protesters after a shooting Jan. 24, 2026, in Minneapolis. (AP Photo/Abbie Parr, File)
