NEWS RELEASE
December 9, 2025
FOR IMMEDIATE RELEASE
DS21 Delivers Scalable Wastewater Solutions for Major Chemical Producer’s Complex Effluents
Eco-friendly project sees quick results in compliance, reliability, efficiency
Seo-Gu, Incheon, Korea (December 9, 2025) – DS21, a leader in the design and manufacturing of cutting-edge wastewater solutions in Korea and around the globe, has delivered comprehensive wastewater treatment systems for a major chemical producer’s complex effluents at its latest eco-friendly project.
In need of a comprehensive wastewater treatment solution to ensure operational reliability and meet regulatory and sustainability benchmarks, the chemical producer required a scalable, modular system with the integration of advanced treatment technologies, sludge handling, odor control and automated operation. To support the producer’s goal of revolutionizing plastic recycling and repurposing, DS21 was selected to deliver turnkey, fully integrated wastewater treatment systems at the cutting-edge facility.
Located at a production site in Asia, the project encompassed advanced material and chemical processing units, both of which generate complex and variable wastewater streams. These streams presented challenges such as fluctuating organic and inorganic loads, free oil, suspended solids, high COD/BOD concentrations and intermittent contaminants, including Reverse Osmosis (RO) eject and Cooling Tower (CT) blowdown.
DS21 engineered and delivered a customized, modular wastewater treatment solution designed to handle high variability in influent quality, maintain discharge compliance and optimize operational efficiency across multiple plant interfaces. Thanks to its compact size and modular nature, the system was optimized for limited space and future scalability. Components of the wastewater treatment system include:
- Corrugated Plate Interceptor (CPI) Separators are used to remove free oil and settleable solids, significantly reducing the organic load on downstream processes
- Hydraulic and load balancing involving dual equalization basins and plate heat exchangers
- Advanced treatment with the Dissolved Air Flotation (DAF) System and biological treatment
- Odor control system
- Integration into a Distributed Control System (DCS) for remote and local control via HMI panels, plus automation for equipment operated via VFDs or BLDC controls, with sensors and analyzers ensuring optimized performance
“DS21’s wastewater treatment system has reliably handled the complex and highly variable wastewater characteristics of our customer’s production site, achieving 80–90% removal rates for BOD and COD, and delivering both regulatory compliance and operational efficiency,” said SeongHee Kim, General Manager at DS21. “Featuring integrated CPI, DAF, biological treatment, odor control and automated control systems, this solution exemplifies DS21’s engineering expertise and stands as a smart, scalable model for advanced wastewater treatment in space-constrained industrial environments.”
The systems combined advanced physical, chemical and biological treatment technologies to ensure compliance, reliability and efficiency. Since the system’s installation, the customer reports positive outcomes, including:
- Regulatory compliance consistently achieves 80-90% removal of BOD and COD
- Significant reduction of TSS and total nitrogen
- Odor reduction
- Sludge volume reduction
- Reduced operator workload and enhanced reliability
With a mission to support its partners in their efforts to build an eco-friendlier world, DS21 offers innovative, high-efficiency wastewater treatment systems that align with sustainability goals and regulatory demands.
About DS21
Since 1998, DS21 has been a leader in the design and manufacturing of cutting-edge solutions for oily water treatment, produced water treatment, wastewater treatment and water treatment in Korea and around the world. Now part of the CECO Environmental family of companies (NASDAQ: CECO), DS21 helps global customers in the oil and gas, petrochemical and industrial markets implement custom-designed water treatment solutions to meet regulatory standards. With two state-of-the-art manufacturing facilities and an emphasis on research and development, DS21 is at the forefront of using innovative technology to protect the environment. Learn more at DS21.com and follow DS21 on LinkedIn and YouTube.
About CECO Environmental
CECO Environmental is a leading environmentally focused, diversified industrial company, serving a broad landscape of industrial air, industrial water and energy transition markets globally through its key business segments: Engineered Systems and Industrial Process Solutions. Providing innovative technology and application expertise, CECO helps companies grow their business with safe, clean and more efficient solutions that help protect people, the environment and industrial equipment. In regions around the world, CECO works to improve air quality, optimize the energy value chain, and provide custom solutions for applications in power generation, petrochemical processing, refining, midstream gas transport and treatment, electric vehicle and battery production, metals and mineral processing, polysilicon production, battery recycling, beverage can production and produced and oily water/wastewater treatment along with a wide range of other industrial applications. CECO is listed on Nasdaq under the ticker symbol “CECO.” Incorporated in 1966, CECO’s global headquarters is in Addison, Texas. For more information, please visit www.cecoenviro.com.
Contact Information:
Mary Catherine Ratliff, Senior Account Manager
TRINDGROUP
Phone: (334) 246-1535
Email: [email protected]
