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emulsification water immiscible liquid wastes can be emulsified using soap or detergent solution and then run into the drainage examples benzene
evaporationhighly volatile liquid wastes could be disposed of by effective ventilationexample diethyl et-hermoderately volatile liquid wastes can be
dissolution and dilution water soluble1 miscible chemical wastes which are harmless in high dilution may be run into the drainage with plenty of
introduction in this activity your counsellor will perform some experiments illustrating the principles behind some of the disposal procedures these
the survey committee recommendationsthe survey committee consisting of the following three members surveyed chemistry1 physicsbotanyzoology
procedure1 assume that your counsellor is the head of the institution2 your counsellor will choose three of you and form a survey committee as
objectivesafter you do this exercise you should be able to1 prepare a list of unserviceable and obsolete items to be disposed of after2 indicating
introduction you may find this exercise as a practical illustration for the procedure generally followed in the disposal of unserviceable and
procedure1 after the dissection experiment is over the dead animals are put in disposable paper bags and the bag is sealed animal tissues and
requirementsexperimental animalsdigging and scooping equipmentdisposable
disposal op carcass after the experiment with an animal is over the dead animal ie carcass should not be left in the laboratory the dead animals
procedure1 soak the emptied glassware in disinfectant or liquid soap solution overnight if you use disinfectant dip the glassware in soap solution
requirementsglassware like flask petri plates test tubes pipettes isi infect antcleaning brushliquid soap solutionbucketenamel traysteel
sterilization of glasswareactivity is related activities whenever you require the glassware for doing an experiment you can follow the procedure
procedure steps 1 to 3 and step 5 are demonstration steps and will be performed by your counsellor observe these steps carefully1 the cotton
requirementsautoclavemicrobial cultures - liquidsoliddisinfectantspatuladisposable
disposal of microbial cultures after the study is finished microbial cultures should not be left in the laboratory or taken out of the laboratory
objectivesafter completing this exercise you will be able to1 sterilize and dispose off microbial cultures2 dispose off the carcass of laboratory
introduction in any laboratory dealing with biological experiments hazards can occur mainly due to chemicals and biological materials in the
procedure a mock fire may be created by spilling a flammable liquid like alcohol petrol etc and lighting it at a safe place away from the equipments
to learn the use of a carbon dioxide fire extinguisher all chemical laboratories should be provided with carbon dioxide and or dry chemical fire
to surveys a lab for its fire preparednessas said earlier in this activity you are going to survey the labs of the institution where you are working
objectivesafter you have completed this exercise you should be able to1 enlist all the fire extinguishers available in the labs
introduction here you have need to about the fire hazards various causes of fires and the precautions to be taken to avoid them you also learnt
procedurelocate the gas cylinders available in the labnote the colour of the cylinder to a maximum of two and exclude the lpg and bands on it if any