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Municipal solid waste (MSW) in developing countries often has a high kitchen waste content (HKWC).HKWC results in high leachate mounds, low landfill gas collection efficiency, and high volatile fatty acid concentration in the leachate in the early degradation period in the landfills.The design, management and control techniques for landfills with low-kitchen-waste-content (LKWC)-MSW used in developed countries may not be fully suitable for landfills with HKWC-MSW in developing countries.In this paper, the biochemical, hydraulic and mechanical behaviours of landfills with HKWC-MSW are investigated via laboratory tests, large-scale model tests and a novel coupled model.The following conclusions are obtained: (1) In laboratory degradation tests of HKWC-MSW, an acid inhibition phase occurs during the early degradation period.(2) Mechanical loading may accelerate MSW hydrolysis by increasing the volumetric water content of MSW due to the compression and release of intra-particle water during accelerated degradation.(3) A high leachate mound is an important characteristic of landfills with HKWC-MSW;such mounds lead to gas flow retardation and a high hydraulic head on the liner.(4) The degree of degradation of MSW and the stabilisation process can be assessed in terms of cellulose weight/lignin weight (C/L).Based on the findings above, a formulation considering the release of intra-particle water during degradation is proposed for landfills with HKWC-MSW to predict leachate production;a drainage system with leachate-gas separation is recommended to lower the leachate mound and increase the LFG collection efficiency;and recirculation with dosed leachate is suggested to relieve the potential for acid inhibition in the early degradation period.