PeCOD® technology improves performance, reduces wastewater pollution in pulp and paper mills

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MANTECH’s PeCOD® technology improves performance, reduces wastewater pollution in pulp and paper mills

Results of new study presented at international conference

Stockholm, SWEDEN, March 23, 2017 — MANTECH’s innovative water-quality analysis technology is a safe and effective alternative for pulp and paper producers seeking to improve wastewater treatment and optimize the use of chemicals in their processes, an international research project has found.

An abstract of key findings from the project will be presented at the Nordic Wood Biorefinery Conference (NWBC) in Stockholm, March 28-30.

MANTECH is the exclusive provider of water-monitoring technology for the Euro €1.36-million European-Canadian ACQUEAU project that is looking at ways to reduce chemical oxygen demand (COD) in water-intensive industries such as pulp and paper and textiles. COD refers to the amount of oxygen required to oxidize organic matter in water, and is the standard parameter for indirectly measuring the amount of pollution in discharge from industrial facilities and wastewater treatment plants.

MANTECH’s new COD-testing method, photoelectro Chemical Oxygen Demand (peCOD), was chosen for the study to evaluate the effects of advanced oxidation water treatment technologies at various stages of the pulp and paper wastewater treatment process.

“The peCOD approach overcomes many of the problems associated with existing COD analysis methods,” said MANTECH President and CEO Robert Menegotto, one of the co-authors of the study.

The peCOD method and MANTECH’s PeCOD® Analyzer provide fast, accurate and safe COD analysis using a novel, nanotechnology-based approach that accurately measures COD in less than 15 minutes. Safe for the operator and the environment, peCOD does not require dichromate, mercury or acid, all harmful chemicals, used in standard COD-testing methods that take hours to generate results.
The study compared COD results using peCOD and the standard dichromate method for many different effluents from kraft and mechanical pulp mills. The peCOD results demonstrated a strong correlation to results from the standard dichromate method, indicating that peCOD could be a valuable tool for optimizing plant operations and water treatment, and for protecting public health and the downstream environment.

Results from this study reinforced MANTECH’s real-world results in Chile, where a pulp mill has used peCOD in full-scale operations since 2013. By using peCOD, the company has reduced the use of hypochlorite in its bleaching processes with no loss of product quality, resulting in a lower amount of organics in the wastewater stream and a further reduction in chemicals and energy used in water treatment. peCOD technology saved the company US$3 million in one year, said Menegotto.

“By knowing the COD in the wastewater stream more quickly, mill operators will be able to optimize and reduce the amount of chemicals they use in their processes upstream. It’s a win-win for everybody — the company, its workers, and the environment,” he said.

The project is supported by ACQUEAU, the EUREKA innovation cluster dedicated to supporting water projects. MANTECH and FPInnovations are the Canadian participants in the study that includes European companies VTT, Flootech, Kemira, Sansox, and Sappi Finland Operations Oy.

About MANTECH

Based in Guelph, Ont., Canada, MANTECH manufactures innovative water-quality analysis systems that help industrial facilities, laboratories and utilities provide clean, safe water. MANTECH’s systems are easy to use and deliver fast, accurate results for green, sustainable solutions that are trusted in more than 40 countries.

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