Calcium scale problems in wastewater treatment. A new approach was used to solve the problem and the results were confirmed!

SUZUKI Lab. & Dev. in Tokyo University of Marine Science and Technology (Location: Odawara City, Kanagawa Prefecture; Representative: Seiji Suzuki), a developer and manufacturer of formulations for improving biological treatment in wastewater treatment, announces that it has solved the problem of calcium scale in wastewater treatment with a new approach and has confirmed the results.

Effects of the source return* Improvement by loosening the sludge

■Problem: Trouble with facilities caused by calcium scale

When calcium scale (solid deposits containing calcium) adheres to equipment in wastewater treatment facilities at factories and leachate treatment facilities at final disposal sites, it can clog pipes and pumps, resulting in poor water flow, and clogged diffusion pipes can cause insufficient air supply to the activated sludge (microorganisms) responsible for water purification. If left unchecked, this can cause a reduction in treatment capacity and overflow from the tank.

In the past, separate measures had to be taken to remove scale and prevent its formation, resulting in a lot of labor and cost, including the use of chemicals and labor costs.

■Solution by loosening sludge: Simultaneous scale removal and prevention of scale formation

"Genki" is a biological treatment improvement agent for wastewater treatment, which weakens the binding strength of microbial aggregates (biofilm). This action provides oxygen and nutrients to the biofilm, dramatically increasing the decomposition capacity of the microorganisms and dramatically improving the efficiency of biological treatment, thereby improving various problems in the wastewater treatment environment in a short period of time. Calcium scale, which is a problem in biological treatment tanks, is formed by the association with biofilms, so by using "Genki" to loosen the biofilm, the calcium scale is broken up and easily detached. This simultaneously removes scale and inhibits new scale formation.

■Case Study: Success in Reducing Workload and Costs

At a biological treatment facility (aeration tank capacity: approx. 6,000 m3) of a major chemical plant, removal of calcium scale and suppression of its formation were achieved by adding "Genki". Until then, water was periodically drained and calcium scale adhering to equipment and piping was removed by high-pressure washing, but this process was very costly and dangerous.

As a result of the addition of "Genki", the treated water became cloudy after several weeks to a month, and at the same time, the air supply increased. In addition, the water level in the aeration tank no longer rises due to clogged pipes. Now, with the continuous use of "Genki", the formation of calcium scale has been suppressed, and the previous removal work is no longer necessary.

Wastewater Treatment: Path to Improvement* Effective in Preventing MBR Membrane Fouling

■Biological treatment improvement agent "Genki" https://kireinamizu.net

Developer: Seiji Suzuki

　　　 (Representative of SUZUKI Lab. & Dev., joint research with Applied Microbiology Laboratory, Tokyo University of Marine Science and Technology)

Distributed by: BL Dynamics Inc. https://www.bldynamics.com