From the Sector

In accordance with California’s Proper Labeling of Wet Wipes law (AB 818), state wastewater agencies and industry experts went deep to find out exactly what is passing through—and clogging up—municipal wastewater systems. The Responsible Flushing Alliance (RFA) alongside the California Association of Sanitation Agencies (CASA) and the Association of the Nonwoven Fabrics Industry (INDA) released the results from the largest known domestic sewage collection study conducted to reveal what’s really being flushed down the drain – and shouldn’t be.

“We took a forensic approach to this collection study, engaging industry and wastewater experts to examine our findings and determine what exactly is being flushed and how much of it,” said Adam Link, Executive Director at CASA, a co-sponsor of the Proper Labeling of Wet Wipes Law. “Now that we have the data to see what Californians are flushing and the types of non-flushable items that are causing issues within wastewater systems, local agencies can refine their public outreach and messaging to target specific problems and educate more efficiently.”

Collection and material investigation took place in October 2023 at two locations: Inland Empire Utilities Agency (IEUA) in Southern California and Central Contra Costa Sanitary District (Central San) in the greater San Francisco Bay Area in Northern California. Wastewater and wipes experts collected, sorted and identified more than 1,700 items pulled from the two locations during peak flow times. Kennedy Jenks, an independent engineering firm, designed the study and compiled the findings into the report.

Why Study What’s Being Flushed?
When products that aren’t meant to be flushed down the toilet wind up in the sewer system, it can cause serious threats to public and environmental health. In fact, estimates show that local public agencies throughout California (and the ratepayers they represent) are spending more than $47 million annually to repair wastewater treatment equipment and respond to sewer overflows caused by improper flushing.

“Part of keeping communities healthy requires not flushing things we shouldn’t,” said Lara Wyss, President of the RFA. “However, the data to support which non-flushable items to target as part of education campaigns has been lacking. That’s likely why when we surveyed Californians about what they are flushing, the results revealed that approximately 25% think baby wipes are flushable (which is never true) and 60% self-reported that they flushed something they knew they shouldn’t have.2 Our study results reinforce that finding, as more than 99% of materials collected were items that shouldn’t have been flushed.”

The breakdown of items collected from pipes at the two study locations included:
•    34.1% wipes labeled with the “Do Not Flush” symbol (baby wipes, cleaning wipes, makeup wipes, etc.)
•    64.9% other non-flushable items (paper towels, period products, trash, etc.)
•    0.9% wipes labeled as flushable

“We pulled material larger than 1-inch square directly from the bar screens, and it wasn’t until everything was sorted and identified that we could see what we actually had,” said Matt O’Sickey, Director of Education and Technical Affairs, INDA. “There were a lot of paper towels and baby wipes and all of the ‘Do Not Flush’ labeled wipes we collected were fully intact, showcasing why they should never be flushed.”

What Not to Flush—and How We Tell Consumers
According to the Proper Wet Wipes Labeling law, manufacturers of non-flushable wipes, including products such as baby wipes, cleaning wipes, makeup removal wipes and many others that are primarily used in a bathroom setting must include the “Do Not Flush” symbol on the front of the packaging.
The #FlushSmart consumer education campaign promotes the “Do Not Flush” symbol and provides information on what should and should not be flushed. The message shared with consumers is simple: Look for the “Do Not Flush” symbol on wipes packaging, and if you see it – throw the wipe out. Extrapolating from the results of this study, refraining from flushing “Do Not Flush” labeled wipes, paper products and feminine hygiene products would capture over 90% of items clogging sewers.

Archroma, a leader in specialty chemicals towards sustainable solutions, is teaming up with COLOURizd™, an innovator specializing in sustainable textile dyeing technologies, to set a new standard for the eco-friendlier production of sustainable textiles.

The new collaboration will enable fabric mills and brands to combine Archroma pigment coloration solutions with the COLOURizd™ QuantumCOLOUR™ yarn-coloring technology to produce high-quality, high-performance textiles with maximum consumer appeal and minimal environmental impact.

Conventional fiber-reactive methods of dyeing cellulosic and synthetic yarns are multi-step resource-intensive processes that use up to 95 liters of water per kilograms of colored yarn and discharge approximately 94 liters of effluent.

In contrast, the innovative QuantumCOLOUR™ process injects pigment and a binder directly into the yarn, using only 0.95 liters of water per kilograms of colored yarn while producing zero effluent. This represents an unprecedented reduction of 98% in water consumption alongside zero wastewater discharge, zero discharge of harmful chemicals, 73% decrease in carbon footprint and 50% reduction in energy use.*

With Archroma, textile manufacturers and apparel brands can add further value to the QuantumCOLOUR™ process with tailor-made system solutions, including JUST COLOR. This formaldehyde-free** pigment coloration system is based on Archroma’s revolutionary Printofix® pigment dispersions and Helizarin® binders to deliver exceptionally soft fabrics with high fastness and durability, while also enabling energy and chemical savings and higher productivity.

* As tested by Peterson Control Union
** Below limits of detection according to industry standard test methods

• Achievement Ahead of Schedule

All of Sateri’s five viscose mills in China are now fully compliant with the emission limits set out in the European Union Best Available Techniques Reference Document (EU-BAT BREF) on Polymers, following recent verification of Sateri Jiangsu and Sateri China mills.

Verified by independent consultant Sustainable Textile Solutions (STS), a division of BluWin Limited (UK), the parameters assessed included resource utility efficiency, wastewater discharge and air emission.

Allen Zhang, President of Sateri said, “Sateri Jiangsu was established in 2019 following an acquisition while Sateri China was built in the same year. We had aimed to have both mills meet EU-BAT’s recommended emission levels by 2023. To achieve this two years ahead of schedule underscores our continuous efforts in process improvement and control of pollutant emissions, and resource utilization efficiency. We will continue to pursue manufacturing excellence and invest in best-in-class technologies for all our mills – existing, acquired, and newly constructed ones – as part of our Vision 2030 commitment towards closed-loop and cleaner production.”

Chen Xinwei, Chairman of China Chemical Fiber Industry Association, said, "China's regenerated cellulose fibre industry has been progressing steadily in recent years. As a major viscose manufacturer, Sateri has demonstrated leadership in benchmarking itself against advanced domestic and international standards, focusing on low-carbon development, energy-saving and emission-reduction technology, and cleaner production to advance sustainable development, as well as enhance the company’s competitiveness. All other players in the industry should be encouraged to follow suit."

Sateri is a member of the RGE group of companies; Sateri’s other three mills - Sateri Fujian, Sateri Jiujiang and Sateri China (Jiangxi) - had attained EU-BAT compliance in 2020.

Rest of the Mills to Complete Assessments and Comply by 2023

Sateri’s mill in Fujian, China, has been verified to comply with the European Union Best Available Techniques (EU-BAT) standard. Verified by independent consultant Sustainable Textile Solutions (STS), a division of BluWin Limited (UK), the parameters of the standard assessed included resource utility efficiency, wastewater discharge and air emission.

In the assessment report, STS noted that all of Sateri Fujian’s mill parameters assessed were within the range of EU-BAT limits. Notably, its energy intensity, sulphur to air, and chemical oxygen demand (COD) were well under EU-BAT norms. With the use of cutting-edge technologies for air emissions control, the total sulphur recovery rate is over 98%. Sateri Fujian accounts for over 20% of Sateri’s annual total production capacity.
The compliance with EU-BAT standard comes on the back of several key manufacturing and product related industry certifications and standards which Sateri has attained. These include OEKO-TEX®’s MADE IN GREEN, STeP, and STANDARD 100. Sateri is one of the world’s first viscose producers to complete the Higg Facility Environmental Module (FEM) 3.0 assessment. Sateri is also part of the multi-stakeholder Zero Discharge of Hazardous Chemicals (ZDHC) manmade cellulose fibre working group, which is developing guidelines to reduce environmental emissions. As a founding member of the Collaboration for Sustainable Development of Viscose (CV), Sateri is supporting the development of CV’s 2025 Roadmap which considers industry best management practices and global certification standards.