4.3 Operational and safety guidelines for bypass protein plant
Operation of protein mixer:
1. Turn the dust collector on.
2. Put on the dust mask.
3. Turn on the mixer and load mixer with feed.
4. Close the hatch and turn off the mixer.
5. Turn off the dust collector.
6. Put on formaldehyde mask, gloves and face shield.
7. Fill the formaldehyde container.
8. Turn the mixer on.
9. Calibrate the pump. This should be done only for the first run of the day and need not be repeated thereafter.
10. Turn on pump for the required time schedule.
11. Continue to run the mixer for five minutes after the pump is switched off.
12. Fit bulk bags to auger. Take care to use formaldehyde masks while bagging.
13. Turn on out feed auger.
14. When mixer is empty, tie the bag.
15. Turn off mixer and auger.
Protective clothing and equipment:
1. Wear a laboratory coat and gloves when handling formaldehyde.
2. Face shield or goggles to protect the face and eyes from splashes should be worn when mixing or handling formaldehyde.
3. Gumboots and an impervious apron should be worn when handling tanks or drums of formaldehyde.
4. Apply a good quality barrier cream on hands and forearms to prevent dermatitis and general skin irritation.
5. Respiratory equipment must be used if formaldehyde is handled without adequate ventilation and there is a risk of inhalation.
Using formaldehyde
1. Keep the emergency face/ eye wash and shower clear from obstruction.
2. Wash your hands, arms, face and neck thoroughly after work and before eating.
3. Do not leave any containers of formalin in the sun or exposed to high temperature.
4. To prevent spillage always move large tanks and drums with the lids firmly on. Never try to move these items by yourself.
5. Always handle formaldehyde near a reliable supply of unlimited water to dilute spills etc.
6. Maintain a high standard of laboratory housekeeping.
7. Only use specimen containers with airtight lids and proper seals. Use bubble wrap under lids of large tanks to improve the seal.
8. Formaldehyde should be stored in a cool, well-ventilated location out of direct sun- light and away from other sources of heat and ignition.