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task library
built templateactivated-sludgewith-tool

Oxygen Requirements

Calculates activated sludge oxygen demand from BOD removal, nitrogen oxidation, sludge production, and denitrification credit. The template uses explicit stoichiometric factors for carbonaceous demand adjustment, nitrification oxygen demand, and denitrification oxygen recovery.

inputs

7 fields

context

2 archetypes

engine

with-tool

outputs

5 scored fields

contract fields

Parameter Map

7 inputs to 5 scored outputs

  • flow_rate_m3_d

    float

    Process flow rate

    10 to 1000000m3/d

  • influent_bod_mg_l

    float

    Influent BOD concentration

    10 to 1000mg/L

  • effluent_bod_mg_l

    float

    Effluent BOD concentration

    0 to 100mg/L

  • influent_tkn_mg_l

    float

    Influent TKN concentration

    1 to 150mg/L

  • effluent_tkn_mg_l

    float

    Effluent TKN concentration

    0 to 50mg/L

  • sludge_production_kg_d

    float

    Biomass sludge production

    0 to 100000kg/d

  • denitrified_nitrogen_mg_l

    float

    Nitrate-nitrogen denitrified for oxygen credit

    0 to 100mg/L
bod_removed_kg_dtol 0.03

BOD removed

carbonaceous_oxygen_kg_dtol 0.03

Carbonaceous oxygen demand after sludge credit

nitrogenous_oxygen_kg_dtol 0.03

Nitrogenous oxygen demand

denitrification_credit_kg_dtol 0.03

Denitrification oxygen credit

total_oxygen_kg_dtol 0.03

Total oxygen demand

visibility contract

Difficulty Ladder

all_giveneasy

All parameters given for a package activated sludge plant

all fields visible
all_givenmedium

All parameters given across package and municipal plants

all fields visible
all_givenhard

All parameters given for nutrient removal oxygen demand

all fields visible

scenario bands

Archetype Atlas

package_plant

2 contexts

Package activated sludge plant

flow_rate_m3_d100 to 5000
influent_bod_mg_l150 to 400
effluent_bod_mg_l5 to 30
influent_tkn_mg_l20 to 80

remote-community-wwtp / industrial-package-wwtp

municipal_nutrient_removal

2 contexts

Municipal nutrient removal activated sludge plant

flow_rate_m3_d5000 to 500000
influent_bod_mg_l150 to 350
effluent_bod_mg_l2 to 20
influent_tkn_mg_l25 to 90

regional-wwtp / urban-nutrient-removal-plant

rendered task

Generation Preview

regional-wwtp-municipal-nutrient-removal-preview

difficulty
hard
visibility
all_given
archetype
municipal_nutrient_removal
site context
regional-wwtp
instruction excerptoxygen-requirements_calc.py

visible fields

  • flow_rate_m3_d5000 to 500000 m3/d
  • influent_bod_mg_l150 to 350 mg/L
  • effluent_bod_mg_l2 to 20 mg/L
  • influent_tkn_mg_l25 to 90 mg/L
  • effluent_tkn_mg_l1 to 15 mg/L
  • sludge_production_kg_d1000 to 80000 kg/d
  • denitrified_nitrogen_mg_l5 to 60 mg/L

withheld schema

bod_removed_kg_dcarbonaceous_oxygen_kg_dnitrogenous_oxygen_kg_ddenitrification_credit_kg_dtotal_oxygen_kg_d
Municipal nutrient removal activated sludge plant. regional-wwtp. Required outputs: bod_removed_kg_d, carbonaceous_oxygen_kg_d, nitrogenous_oxygen_kg_d, denitrification_credit_kg_d, total_oxygen_kg_d