| Scenarios | Food waste disposal units | Food waste collection | Food waste treatment | Human excrement treatment |
| Scenario 1 | - | Curbside | Composting | Septic tank in houses |
| Scenario 2 | - | AVWC system | Composting | Septic tank in houses |
| Scenario 3 | FWDMs in individual houses | Curbside | Compositing | Septic tank in houses |
| Scenario 4 | FWDs in individual houses | Discharge the grinded food waste to the public WWTPs | Septic tank in houses | |
| Scenario 5 | FWDs in individual houses | Pretreatment in apartments and discharge the sewage to the public WWTPs | Septic tank in houses | |
| Scenario 6 | FWDs in individual houses | Combined biogasification of food waste and human excrement in apartments and discharge the sewage to the public WWTPs | ||