Introducing a case of hydrogen sulfide poisoning that occurred during sludge removal work at a thermal power plant.
While the operator was discharging sludge in the circulating water receiving tank, they inhaled hydrogen sulfide generated from the sludge, suddenly lost consciousness, and collapsed. A worker who entered the tank to rescue them also lost consciousness and collapsed. Workers equipped with oxygen tanks and respirators rushed in, entered the tank, and rescued the two individuals. When measuring the hydrogen sulfide concentration at the location measured before the work, it was found to be over 100 ppm. 【Suggestions】 ■ Use gas detectors to confirm the effectiveness of ventilation ■ Work while confirming safety with portable gas monitors *For more details, please refer to the PDF document or feel free to contact us.
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【Case Summary】 ■Location - Inside the circulating water receiving tank at the thermal power plant ■Countermeasures - Implement ventilation necessary to keep the hydrogen sulfide concentration in the air below 10 ppm *For more details, please refer to the PDF document or feel free to contact us.
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For more details, please refer to the PDF document or feel free to contact us.
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Riken Keiki Co., Ltd. was established as a company within the "Riken Foundation" conglomerate and has since focused on the scientific and technological advancements of the Riken Institute. As a specialized manufacturer of industrial gas detection and alarm equipment, we have worked to ensure industrial disaster prevention safety by preventing explosions caused by flammable gases and monitoring harmful gases in the workplace. Moving forward, we aim for zero loss of precious human lives and valuable assets, further strengthening our technological development capabilities. We will supply high-quality industrial gas detection and alarm equipment, as well as various excellent gas sensors, to countries around the world, contributing to the assurance of industrial disaster prevention safety.