Abstract: The present invention provides a water purification apparatus and method using a pressurized micro-filter preprocessed with a coagulation inclined-plate sedimentation reservoir and a pore-control fiber filter for improvement of a recovery rate, which removes the dissolved organic materials and the turbidity of raw water through a preprocess by a flash mixer, a two-stage coagulation reservoir and an inclined-plate sedimentation reservoir, thereby making it possible to reduce the use of coagulants, the generation of sludge by-products, the inflow load of membranes, and the facility size in comparison with the conventional standard water purification processes.

Abstract: The present invention provides a water purification apparatus and method using a pressurized micro-filter preprocessed with a coagulation inclined-plate sedimentation reservoir and a pore-control fiber filter for improvement of a recovery rate, which removes the dissolved organic materials and the turbidity of raw water through a preprocess by a flash mixer, a two-stage coagulation reservoir and an inclined-plate sedimentation reservoir, thereby making it possible to reduce the use of coagulants, the generation of sludge by-products, the inflow load of membranes, and the facility size in comparison with the conventional standard water purification processes.

Abstract: The present invention provides a water purification apparatus and method using a pressurized micro-filter preprocessed with a coagulation inclined-plate sedimentation reservoir and a pore-control fiber filter for improvement of a recovery rate, which removes the dissolved organic materials and the turbidity of raw water through a preprocess by a flash mixer, a two-stage coagulation reservoir and an inclined-plate sedimentation reservoir, thereby making it possible to reduce the use of coagulants, the generation of sludge by-products, the inflow load of membranes, and the facility size in comparison with the conventional standard water purification processes.

Abstract: The method for constructing precast coping for bridge enables for a segment to be match-cast manufactured at the top of a pier body. The method may be applied to small and medium size bridges by introducing transverse tendon force to each segment through tendons after manufacturing a subsegment which is match cast manufactured using sides of a pre-made segment as molding. Further, the method for constructing precast coping for bridge enables to construct precast coping for bridge by easily lifting the coping, which is assembled on the ground, using lifting lugs that are formed on the top of manufacturing segments.

Abstract: The present invention relates to a precast coping lifting system, and more particularly to, a lifting system for lifting precast coping composed of a main segment and a subsegment, characterized in comprising: a hoist crane for installing a horizontal support on the top of the main segment and forming a pair of carriers on the horizontal support; a plurality of clamps for being installed on the top of the horizontal support of the hoist crane, being moved by the carrier of the hoist crane and fixing the subsegment to the top of the horizontal support; and work vehicle for being installed on the horizontal support of the hoist crane and being moved by self power along the horizontal support.

Abstract: The method for constructing precast coping for bridge of the present invention enables to manufacture a segment match-cast manufactured with the top of a pier body; to be applied to small and medium size bridges by introducing transverse tendon force to each segment through tendons after manufacturing a subsegment which is match cast to both sides of the pre-made segment; to be rapidly produced; and to retension tendons when the coping is constructed by using a plurality of segments. Further, the method for constructing precast coping for bridge of the present invention enables to manufacture the method for constructing precast coping for bridge, enabling to obtain stability towards lift by easily lifting the coping, assembled on the ground, through lifting lugs by forming lifting lugs on the top upon manufacturing segments.

Abstract: The present invention provides a water purification apparatus and method using a pressurized micro-filter preprocessed with a coagulation inclined-plate sedimentation reservoir and a pore-control fiber filter for improvement of a recovery rate, which removes the dissolved organic materials and the turbidity of raw water through a preprocess by a flash mixer, a two-stage coagulation reservoir and an inclined-plate sedimentation reservoir, thereby making it possible to reduce the use of coagulants, the generation of sludge by-products, the inflow load of membranes, and the facility size in comparison with the conventional standard water purification processes.