This article introduces a new type of ceramic membrane system and explains how it opens the application range. An example of treatment of oil and grease in produced water is provided.
Pulp & Paper
Recovery and reuse of pulp & paper wastewaters and chemicals
PAPER & PULP
Pulp & Paper Wastewater
Water is an essential ingredient to the pulp and paper industries. Wastewater from pulp and paper processes may face regulatory scrutiny due to risks to aquatic life.
Wastewater concerns may include:
- residual bleaching agents, such as hydrogen peroxide
- reducing consumption by increasing water reuse
- total suspended solids (TSS) and turbidity
- biochemical oxygen demand (BOD/COD)
- organics (especially organochlorides)
- sodium sulfate.
Expertly Optimized RO
Reverse osmosis (RO) concentrates waste streams for disposal and recovers fresh water for processing. We can help you get the most out of RO with a suite of products that maximize performance, cost-effectiveness, and longevity:
- BrineRefine scaling ion removal with precision automated chemical dosing
- Highly robust XtremeUF ceramic ultrafiltration for organics and particulate removal
- XtremeRO/NF brine concentration systems available in three pressure classes to meet your recovery needs
- Dynamic recovery control with our ScaleSense sensors to optimize recovery in real time as water conditions change
- Our SaltMaker evaporator crystallizer range further concentrates brine to minimal or zero liquid discharge (MLD or ZLD)
- SaltMaker ChilledCrys withdraws dissolved sodium sulfate as a solid, suitable for reuse.
Saltworks Can Help
Saltworks’ experts can help you to understand your options, including treatment, discharge regulations, and economics.
To decide on an appropriate and cost-effective treatment process, it is critical to know the wastewater chemistry in detail and understand the treatment goals and capacity needs.
Saltworks can review water chemistry and specific project requirements so that a treatment process is chosen that balances simplicity, cost-effectiveness, and reliability. Contact us for project reviews, water testing, pilots, and more.
Pulp & Paper Related Products
BrineRefine Chemical Softening System
SaltMaker MultiEffect Evaporator Crystallizer
XtremeRO/NF Brine Concentrator
XtremeUF Ceramic Ultrafiltration System
Pulp & Paper Related Resources
Excessive phenolic compounds are harmful to human health and the environment. Chlorophenols, by-products of chlorinating phenol-containing water, are carcinogens. A treatment system needs to be chosen and engineered carefully, with consideration of specific wastewater chemistry, operating conditions, and economics.
There are many sulfate treatments available, with different advantages and disadvantages. Factors for consideration include capital and operational costs, solid vs. liquid brine reject for disposal, if the need is seasonal or year-round, and suitability for adverse operating conditions.
Convention teaches that ZLD requires energy-intensive boiling to produce solids. Our engineers recently broke that convention and helped a mining client achieve solid salt production in a novel membrane-chiller hybrid plant using UHP-RO.