As　a　measure　towards　achieving　carbon　neutrality　and　sustainability　in　the　wastewater　treatment　industry,　an　autotrophic　PN/HAP-A　(airlift　reactor/EGSB　reactor)　system　is　proposed　in　this　study.　The　undiluted　effluent　from　an　AnMBR　digesting　municipal　organic　waste　was　applied　for　the　practical　validation　of　the　system.　With　continuous　feeding　mode,　the　high　efficiency,　stability　and　operational　simplicity　were　confirmed.　In　both　reactors,　the　sludge　manifested　macro-aggregates　and　HAP-anammox　granules　with　a　satisfactory　settling　velocity　and　well-functional　microorganisms.　The　alkalinity/IC　consumptions　and　the　buffer　capacity　were　given　individually　and　systematically.　The　elemental　flow　and　potentials　of　precipitations　indicated　the　high　possibility　and　viability　of　phosphorus　recovery　by　the　formation　of　HAP,　and　in　turn,　the　accumulation　of　precipitates　in　the　biomass　enhanced　the　settling　velocity　of　the　sludge.　It　is　confirmed　that　the　PN/HAP-A　system　is　a　promising　approach　to　achieving　nitrogen　removal　and　phosphorus　recovery　from　high-strength　wastewater.