Ideally mixed filter 239
Ideally mixed tank 232
Industrial plants 243
Industrial wastewater 175
Inert 262
Inert organic matter 43
Inert particulate 262
Infiltration 23, 337
Influent 175
Inhibition 253, 261
Insects 169
Internal recycles 221
Ion exchange 229
Isoelectric point 322
Isoionic pH 322
K
Kinetics 71
denitrification 89
Kjeldahl nitrogen 49,261
KLa-value 254
Knossos 16
L
Laboratory filter 177
Laboratory rotating disc 177
Lagoons 113
Langmuir isotherm 331
Larvae 169
Level I 223
Levelii 224
Lechate 201,224
Lifting, filter 171
Lime 204
Lime addition 224
Limiting factor 176
Loading rules 17 4
Low-rate trickling filters 270
Lundtofte treatment plant 216, 217
M
Mass balances 176, 196,230,265
activated sludge plants 113
biofilters 164
Maximum growth rate 265
Maximum hourly flow rate 11
Maximum specific growth rate 63
Maximum yield constant 63
Mean velocity gradient 326
Metals in domestic wastewater 29
Metazoa 56
Methane 258,269,302
Methane bacteria, washout 306
Methane forming bacteria 101
Methane production 181
Methane step 105
anaerobic processes 101
Methanol 177,182,234,241,243,
252,258
Methods of analysis 183
Microbiological determination of
species 180
Microbiological oxygen
consumption 66
Micrococcus 57
Microsensors 270
Modified BOD 43
Molecular diffusion 143,182
Molecular diffusion coefficient 152
Monod kinetics 63,149
Municipal wastewater 27, 173, 175,
182,183,195,224
N
Necessary aerobic sludge age 198
Net growth rate 198
Nitrate 49, 177
Nitrate balance 232
Nitrate consumption rate 51
Nitrification 75, 174, 177, 195,230
alkalinity 79
Environmental factors 79
inhibiting substances 83
oxygen concentration 80
Nitrification rate 200, 222, 224
oxygen dependency 222
Nitrification tank 198
Index
379