XtremeUF ceramic ultrafiltration removes oils, grease, precipitated by-products, particulate, microbes, and suspended solids.
Semiconductors and Electronics Manufacturing
Water solutions for the semiconductor industry
The manufacturing of semiconductors and electronics generates unique wastewaters. Saltworks can help you to manage wastewater flows from microelectronics production, targeting ammonia, metals, and fluoride and other ions for removal, as well as reducing brine waste, and increasing water reuse.
Semiconductors and Water
High purity water for washing and etching processes is essential to the production of semiconductor devices. The wastewater produced often contains organic solvents and inorganic contaminants. Saltworks can help with these challenges, including:
- Reducing ammonia loads in biological processes & optimizing stripper scrubbers,
- Removing azoles with an advanced membrane process,
- Precipitating fluoride from etching wastewater,
- Reducing suspended solids to a low level using robust, ceramic ultrafiltration,
- Selectively precipitating metals such as arsenic and copper in a compact, intelligently automated plant,
- Brine Management such as recovering water from reverse osmosis brine and ion exchange resin regeneration waste.
The silicon microelectronics industry uses hydrofluoric acid (HF) etching, producing fluoride-rich wastewater. Chemical precipitation and coagulation are used to treat fluoride.
Saltworks’ BrineRefine automates chemical reactions to improve operations while reducing footprint. BrineRefine uses intelligent automation—with optional ion-specific sensors—to dose chemicals precisely. Variability on the inlet flow is accepted, which reduces costs of chemical and sludge disposal.
XtremeUF, our robust ceramic ultrafiltration system, removes precipitate and other particulate, producing a high-quality filtrate in a small footprint. Clarifiers can also be partnered with BrineRefine.
Heavy metals such as arsenic, nickel, and cobalt can also be removed with our BrineRefine solution. Production of amorphous solids from these processes requires a high rate of slurry thickening and pressing to ensure sound water recovery and economics.
BrineRefine’s built-in XtremeUF system can concentrate slurries to the extreme, reducing the load on filter presses and operators, thereby reducing costs. 100% water recovery can be achieved, with the only waste being a minimized solid filter cake.
Biological treatment and/or stripper scrubbers are widely used in ammonia wastewater treatment. Biological treatment can produce harmless nitrogen gas, while stripper scrubbers manufacture a rich ammonium sulfate solution, which can be blended into fertilizer.
Ammonia presents unique challenges with many pathways to its removal. Treatment choices are largely determined by the economics of ammonia handling post-removal (destruction, reuse, transport).
Saltworks can facilitate or optimize treatments by:
- Reviewing your ammonia problem and developing a matrix of comparative options, including costs
- Concentrating ammonia wastewaters with XtremeRO
- Using end-to-end solutions that involve ammonia stripping, scrubbing, & crystallizing
- Boosting stripper-scrubber capacity by extracting ammonia from the scrubber circuit, increasing absorption capacity
- Crystallizing ammonium sulfate using our SaltMaker evaporative crystallizers
- Removing ammonia load through novel processes using off-the-shelf unit operations specific to your water
- Converting to nitrogen gas via chemical or electrochemical methods
Saltworks’ brine management solutions can produce clean water from reverse osmosis brines, ion exchange regeneration wastes, and other concentrated saline waters. Our experts can help you to understand your brine minimization options, and the costs involved in taking each incremental step.
After membrane system recovery has been optimized, our thermal desalination solutions from the SaltMaker family of modular, fully packaged industrial evaporator-crystallizers can help you to achieve minimal (MLD) or zero liquid discharge (ZLD). Waste heat-driven options are available.
Contact us to learn more about our solutions for microelectronics wastewaters.
BrineRefine is a continuous stirred tank reactor (CSTR) that executes diverse chemical reactions efficiently and with precision.
Our UHP RO minimizes brine from tough industrial wastewaters and delivers the highest freshwater recovery in the industry.
Saltworks delivers reliable solutions for data center cooling that maximize uptime and energy efficiency while helping meet water sustainability goals. Our modular, low footprint systems can optimize cooling cycles, reduce scaling, and minimize wastewater disposal volumes.
Reverse osmosis-based brine concentrators are reaching new performance levels not seen before. Saltworks is pleased to report that a substantial pilot plant is currently demonstrating 99% freshwater recovery on cooling tower blowdown (CTB).
New modular, intelligent, and automated chemical precipitation with a ceramic membrane filtration system eliminates the challenges of chemical overdosing and large footprint requirements.
The many options for managing brine, a term for saline wastewater from industrial processes, fall under two categories: brine treatment and brine disposal. Brine treatment involves desalinating the brine for reuse and producing a concentrated brine (lower liquid waste volume), or residual solids (zero liquid discharge).