A lot of things happen during wastewater treatment and a large portion of what happens can be hazardous if precautions are not taken. Mechanics and workers who enter these plants should be equipped with the right protective gear. This is because these plants can contain dangerous hydrogen sulphide gas. While crude oil naturally contains this gas, it can also be produced as a result of the action of bacteria on human waste. This can increase the risk of exposure to this gas for workers at treatment plants. Certain precautions should be taken to ensure the safety of employees in treatment plants.
Employees in treatment plants should carry gas detection devices
Employees in treatment plants should do air quality tests in the basement to detect the presence of harmful gases. In addition, they should also carry gas detection devices in places suspected to contain dangerous gases. Gas detection alarms should also be installed in treatment plants.
The area should be ventilated if hydrogen sulphide gas is detected
It is mandatory to do air testing in places where the dangerous hydrogen sulphide gas can accumulate easily. In liquid form, hydrogen sulphide causes frostbite in people. In cases where this gas is detected, the area should be well-ventilated before employees can work there. In case that ventilation isn’t possible, employees should wear suitable respiratory gear to prevent being overwhelmed with the toxic gas.
Workers in wastewater treatment plants should be very careful since hydrogen sulphide is also a highly flammable gas. When this gas is ignited, it can travel to the source of ignition. OSHA advises the air to be accurately tested before employees can work in an area that has hydrogen sulphide gas. In case the gas is present, the area should be ventilated. Where ventilation isn’t possible, workers should wear the right respiratory protection equipment.
Other unique hazards of treatment plants
Most of your treatment plant doesn’t smell nice. You don’t want anyone including you, to end up falling in the wastewater. Unfortunately, this is very possible. The first step you should take for safety is to ensure non-slip surfaces are installed on all catwalks and around the vats. You should also add additional traction tape whenever necessary. The footwear worn by employees and visitors should be slip-resistant.
It is also important to have rescue devices available in case someone falls into the vat. Floatation devices and rescue hooks should be within reach. Employees should understand additional personal hygiene requirements. Handwashing with an anti-septic soap should be done frequently. Any skin abrasion or open cuts should be covered with the right first-aid materials. Providing a suitable location for your employees to change after they are done with their shift is recommended.
Dealing with groups
Professional or student groups may come to visit treatment plants to learn about the wastewater treatment process. You should assign competent employees to guide your visitors throughout the plant. A responsible party should be assigned to stand by when contractors are doing repairs or maintenance. Keep visitors away from hazard areas and open pits.