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BIOLOGY - sewage treatment 21.8 - Coggle Diagram
BIOLOGY - sewage treatment 21.8
PRIMARY TREATMENT
SCREENING
PAPER, STICKS
FILTER
SECONDARY TREATMENT
ACTIVATED SLUDGE PROCESS
BACTERIA, FUNGI, PROTISTS
AEROBIC RESPIRATION
BREAK DOWN CARBOHYDRATES, FATS, PROTEINS
UREA - BROKEN IN AMMONIA - CONVERTED IN NITRATE IONS
TRICKLE FILTERS
GRAVEL COVERED WITH MICROBES
LIQUID SPRAYED OVER THESE BEDS
MICROBES BREAK DOWN ORGANIC MATTER
TREATMENT PONDS / LAGOONS
MICROORGANISMS
BREAK DOWN BIGGER MOLECULES IN SMALLER MOLECULES
RESPIRE AEROBICALLY
NEED AERATION
COMMUNITY
TERTIARY TREATMENT
SETTLING OF SLUDGE
REINTRODUCED TO THE SECONDARY TANK
ANAEROBIC STAGE - METHANE (BIOFUEL)
WATER
TREATED WITH CHLORINE, OZONE AND UV LIGHT TO KILL MICROORGANISMS
RECYCLING
GLASS, METALS, PAPERS, AND PLASTICS
LESS ENERGY USED TO RECYCLE THAT TO MAKE THE MATERIAL FROM RAW MATERIAL
SEWAGE = SLURRY FOR HUMANS = ACQUE REFLUE
IMPIANTO DI DEPURAZIONE - DOPO L'USO
IMPIANTO DI POTABILIZZAZIONE - PRIMA DELL'USO
BIOINDICATOR
A SPECIES OR GROUP OF SPECIES THAT INDICATE THE QUALITY OF THEIR ENVIRONMENT BY THEIR PRESENCE OR ABSENCE
HIGH POLLUTION TOLLERANCE SCORES
OXYGEN FROM THE ATMOSPHERE
CAN TOLERATE LOW CONCENTRATIONS OF OXYGEN