Leachate　concentrates,　an　effluent　produced　from　nanofiltration　and/or　reverse　osmosis,　contains　a　high　amount　of　salts　and　dissolved　organics　especially　refractory　organics.　Thus,　the　treatment　of　leachate　concentrates　would　consume　high　energy　or　a　large　amount　of　chemicals.　The　present　study　is　to　develop　an　effective　treatment　method　by　using　coupled　electrochemical　methods　with　the　least　possible　energy　consumption.　The　leachate　concentrates　was　pretreated　by　electrocoagulation　(EC),　with　aluminum　or　iron　electrodes　as　anodes,　to　decrease　the　dissolved　organic　content.　EC　with　Al　electrode　was　found　to　be　more　efficient　by　consuming　1.25　kWh/m(3)　energy　to　remove　70%　of　total　organic　carbon　(TOC).　EC　effluent　was　further　subjected　to　a　novel　simultaneous　electro-oxidation　and　in-situ　peroxone　process,　which　used　a　Ti-based　nickel　and　antimony　doped　fin　dioxide　(NATO)　as　anode　and　a　carbon　nanotube　coated　carbon-polytetrafluoroethylene　(CNT-C/PTFE)　as　cathode　for　oxygen　reduction　reaction　(ORR).　Compared　with　a　traditional　EO　with　cathode　for　hydrogen　evolution　reaction　(HER-EO),　ORR-EO　obtained　higher　efficiency　and　an　energy　consumption　of　26.25　kWh/m(3),　which　was　much　lower　than　35.5　kWh/m(3)　for　HER-EO.　Results　showed　that　after　ORR-EO,　a　final　TOC　of　57.3　mg/L　was　obtained.　Thus,　EC　in　tandem　with　ORR-EO　process　has　an　excellent　capability　and　economic　merit　in　the　field　of　treating　leachate　concentrates.