Efficient　treatment　of　shale　gas　produced　water　(SGPW)　is　a　great　challenge,　while　ammonia　in　SGPW　has　potential　for　recovery.　In　this　study,　a　membrane　contactor-membrane　distillation　(MC-MD)　integrated　process　was　proposed　to　recover　fresh　water　and　ammonia　under　different　feed　pH　conditions　from　raw　and　reverse　osmosis　concentrate　(ROC)　of　SGPW.　The　results　showed　that　MC　as　pretreatment　significantly　enhanced　MD　performance,　improving　the　normalized　flux　at　75　%　water　recovery　by　11.3　%-16.2　%　and　steadily　reducing　permeate　salinity　to　below　15　mg/L.　The　ammonia　flux　and　mass　transfer　coefficient　became　larger　as　the　feed　pH　increased,　reaching　maximum　ammonia　flux　of　2.47　g/(m2⸱h)　at　pH　of　10.5　and　maximum　mass　transfer　coefficient　of　60.5　m/h　at　pH　of　11.5.　However,　the　excessively　high　pH　accelerated　the　diffusion　of　feed　ammonia　into　the　air,　which　increased　the　percentage　of　ammonia　loss　from　the　system.　The　addition　of　MC　mitigated　MD　membrane　fouling,　increasing　the　contact　angle　of　the　membranes　after　use　to　90.12–127.38°,　which　was　48.5–110.0　%　improvement　compared　to　single　MD　(60.67°).　The　MC-MD　system　reduced　the　81.2–86.0　%　cost　compared　to　traditional　methods,　providing　theoretical　guideline　for　efficient　SGPW　treatment.　©　2025