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There was an incident happens in the wastewater treatment plant of a resin processing facility at 1 7 0 0 hours. The waste treatment plant
There was an incident happens in the wastewater treatment plant of a resin processing facility
at hours. The waste treatment plant treated wastewater from research & development
laboratory, quality control laboratory and waste from process plant due to cleaning and
maintenance activities. A treatment facility comprises of a vessel for neutralization process,
chemical treatment, evaporation, aeration tank, sludge separation etc. The early investigation
reveals that:
The accident happened on the last day of the annual plant shutdown. Many cleanings
activity involving chemicals for tanks including caustic solution.
Large amount of acidic waste were generated in R&D lab due to pilot run.
The neutralization tank burst due to overpressure.
The neutralization tank is not designed to withstand high pressure and lack of safety
protection & monitoring system.
The neutralization tank surface is hot.
All the waste using shared one common piping system to neutralization tank.
The agitator of the neutralization tank is under repair and only available at hours.
Operator switches ON the agitator at hours.
You are a manager in the company. Demonstrate the KepnerTregoe method to resolve the
issue involving both plant design and safe operation. The KepnerTregoe method has FOUR
basic processes. For each step, list down more than three possible reasons and potential
options for safer design and operation.
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