Waterproof board is a permanently waterproof waterproof board, comprising a rectangular flat plate made of waterproof material impermeability, the periphery of the flat plate with a waterproof recessed pinch seat down and groove. Waterproof board is now widely used in roofing, building materials, mainly to resolve the existing roofing waterproofing material by thermal expansion and contraction movement, settlement movement, the material easy to aging and other factors led to the roof leakage problems and life is not long. Waterproof gusset plates connecting the different method used is different, the following approach is generally connected gusset panel is provided with two parallel prongs; a gusset plate corners waterproof connector includes a gusset panel which gusset panel The following four tetragonal symmetry with a pin at right angles to the distribution; gusset plate corners for waterproof connections include gusset panel, below the gusset panel is provided with three pins, two pins parallel to each other, and with the other a vertical pin. Waterproof moderators have these applications, the pinch more than a few connections there are, I believe that with the increasing demands of customers, its performance will continue to improve, its scope of application will be more extensive. Landfill general hierarchical manner overburden landfill waste, garbage accumulation layer and then covered with a layer of loess, it is easy to reduce pollution and waste. Construction of landfill include siting, design and construction, landfill waste admission conditions, operation, closure, post-maintenance and management and pollution control and monitoring of other aspects of the program. In the anti-seepage treatment, the use of 5000 grams of sodium bentonite waterproof blanket base course, lay in the middle layer of high density polyethylene having a thickness of 1.5 mm of water seepage plate as landfill leachate treatment, the top layer laid 600 g filament geotextile fabric for protective layer impermeable membrane to prevent a hard object damage impermeable layers of garbage treatment. Application of geotextile material effectively protect the environment. Ministry of Environmental Protection issued a "Landfill pollution control standards" in 2008, the pollution standard landfill construction detail specification. The standard in the revision process, the solid waste landfill site selection from the construction, operation and the entire process in the post-closure made more stringent pollution control requirements. Standard complement the Landfill siting, design and construction requirements of infrastructure, increased access to domestic waste landfill disposal of common general industrial solid waste, sewage sludge and other admission requirements, and made a pass some treated to meet the standard requirements of municipal solid waste incineration fly ash and other waste can enter Landfill, to promote China's domestic waste incineration facilities will also have a great role in promoting. The standard of living landfill leachate treatment proposed new requirements, standards for existing and new solid waste landfill should be built in a more comprehensive sewage treatment facilities, leachate after treatment need to achieve emissions standards Limit to direct emissions.