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Safety Management

Laboratory waste disposal procedure

Specific Waste
  • TypeAcid, base, organic solvent, used oil, various chemical waste-
  • Disposal DayEvery Thursday 13:00-17:00
  • LocationWaste storage
Infectious Waste
  • TypeAnimal carcass, culture fluid of cell, cell culture flask, slide, cover glass, and etc
  • Disposal DayAnytime
  • LocationWaste storage

SpecificWaste

Definition

Used chemical materials such as liquid, solids and reagent bottles that may contaminate the environment or be harmful to people.

Type

Waste acid, waste base, used oil, used organic solvent, solid, reagent bottles and etc.

Storage
  • Chemicals must be stored by type and trait.
  • The Storage container must be made of a material that is resistant to corrosion and damage from the specific waste.
  • The Organic solvent must be kept in a sealed container to prevent volatilization.
Collecting Waste
  • Waste is to be collected by type such as acid, base, organic solvent, oil, and sold (waste sticker must be attached to the collecting container before hand).
  • Reagent bottles must be labeled by its content (additionally recorded). ※ Aim to prevent any accident in the process of disposing reagent bottles).
  • Additional solid wastes must be transferred via container (fluorescent light bulb, experiment equipment set, electric appliance must not be considered solid type waste).
  • The fluid waste container must be made of chemically resistant material to prevent the container from corrosion (Waste storage facility cannot collect waste fluid that is in a glass bottle).
Transportation
  • Every Thursday, from 13:00~17:00, wastes must be transported to the waste storage facility (do not illegally dispose the waste in front of the facility).
    ※ There was an incident of a related institution prosecuted for illegal disposal during a spot check.
  • Any leftover chemical material in the reagent bottle must be deactivated before transportation.
  • Identify the trait of a non-labeled reagent bottle before transportation.
  • Carefully transport the waste to prevent accidents.
Miscellaneous
  • Illegal waste disposal via sink or toilet is prohibited.
  • Close the cap of the container to eliminate the possibility of a waste spill or volatilization.
  • Do not store chemical wastes for a long period time.
  • To dispose waste other than at the designated time, one must contact the manager.
  • Upon leaving the laboratory due to graduation or retirement, used reagent bottles must be appropriately taken care of (waste disposal, transfer of responsibility).
Disposal Location

Waste storage facility (located next to waste water disposal facility).

Disposal Day

Every Thursday from 13:00~17:00.

InfectiousWaste

Definition

Special sanitary attention is needed among specific waste such as human tissue, specimen, cotton ball, animal carcass, culture fluid of cell, cell culture flask, slide, cover glass, disposable products and etc. These must be classified as infectious waste.

Type
  • Tissue type: Tissue extracted from a human or animal, severed animal body part/carcass, secretion such as blood of a human or animal.
  • Cotton ball type: Cotton ball stained with secretion of human or animal.
  • Waste plastic type: Disposable syringe/sap set.
  • Pathology waste: Culture flask, used test tube, slide, cover glass, blood reagent bottle, used gloves, used medium, blood waste, and etc.
  • Fragile waste: Injection needle, scalpel.
  • Mixed infectious waste: A type of waste that has either been mixed or contacted with number 1 or number 5 infectious wastes.
Storage
  • Waste must be sealed and stored in the designated container once the waste is created. One must not collect waste from various places then be transported into another designated container.
  • Waste that is prone to decomposition such as an animal carcass must be contained and kept frozen.
Collecting Waste
  • Animal waste must be kept frozen after euthanization.
  • Any infectious waste other than animal carcass must collected by each type in a corrugated cardboard container.
  • Waste must be stored in the designated container once the waste is created (transferring waste is illegal).
  • Fragile waste, created from biological experiments, such as used medium, organic solvent, syringe and etc must be stored in a synthetic resins container.
  • Napkins and cans which are not infectious waste must be separately collected and stored.
Storage Method
  • Date of usage and disposer must be noted on the waste collecting container.
  • Prohibition of storing waste for more than 10 days.
Disposal Location

Disposal Location(located next to specific waste storage facility)

Disposal Location
Department Disposal Location Disposal Day
Biomolecular Engineering Entrance of Applied Engineering B/D Every Tuesday, 14:10~14:20
Life Science, Chemistry Main entrance of Life Science B/D Every Tuesday, 14:25~14:55
Bio and Brain engineering Entrance of Bio and Brain engineering B/D Every Tuesday, 15:00~15:10
  • When it is impossible to transport the waste at the designated time, one must transport it to the infectious waste storage facility (located next to specific waste storage facility).
  • Departments disposing infectious waste must transport it to the closest storage facility.
Precautionary Measures
  • Waste created from the laboratory must be transported to the waste storage facility weekly. Waste must not be stacked.
  • Tools used in the experiments such as the culture flask, used test tube, slide, cover glass, blood reagent bottle, falcon tube, used medium, syringe, and injection needle, regardless of its toxic level, must be classified as infectious pathology waste and must be transported to the temporary infectious waste storage facility(Life Science B/D, room #2213).
  • Specific and infectious waste must not be disposed with regular waste. In this case, according to provision of article 61 under the Waste Disposal Act, The president and the disposer will be jointly prosecuted. (conviction of less than 3 years, fine of less than 20,000,000KRW).
  • Contents of a waste storage container must be labeled, and be recorded in a minute book.
KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea / T. 042-350-2114 / F. 042-350-2210 (2220)

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