Abstract: A water purification and storage system comprises a water storage container, a covering plate and an impermeable wall. The water storage container is formed by a plurality of tangentially connected polygonal water-filtering wells (1). Well walls of the water-filtering wells (1) are of a water-permeable structure, and an impermeable layer (4) is arranged at the bottom of the well, wherein at least one of the water-filtering wells (1) is a water output well (14). The covering plate (2) is arranged at the upper portion of the water storage container, and comprises an impermeable covering plate (21) arranged at the upper portion of the water output well (14) and a water-permeable covering plates (22) arranged at the upper portions of the remaining water-filtering wells. The impermeable wall (3) is arranged around the water storage container. The water purification and storage system is suitable for the collection and purification of rain water.

Abstract: An oil-water separating device and a floating oil collecting system including an oil gathering chamber enclosed by a wall, where at least a part of the surface of the wall is covered with a porous, oleophilic and hydrophobic layer which allows penetration of water and oil, the device further including a fixed layer covering on the surface of the porous, oleophilic and hydrophobic layer for limiting the flowing of the porous, oleophilic and hydrophobic layer, which allows the penetration of water and oil, where the pore diameter of said porous, oleophilic and hydrophobic layer is 300-850 ?m, and the porosity is 10-40%.

Abstract: The present invention provides a wall block. The wall block (1) comprises a first wall (11), a second wall (12), a third wall (13) and a rib (14), wherein the first wall (11) is in parallel with the second wall (12), the third wall (13) is securely connected between the two walls, at the two respective ends of the two walls; the rib (14) is connected fixedly between the first wall (11) and the second wall (12), and forms a hollow portion (17) with the third wall (13). With the technical solution, as the wall block has a hollow structure, a load-bearing structure (such as a bearing pillar) may be arranged directly in the hollow structure of the wall block, unlike the traditional wall blocks which need to be piled up around the load-bearing structure (such as a bearing pillar) at a large amount. Therefore, the wall block of the present invention can save time for piling up the same and improve construction efficiency.

Abstract: The present invention provides an oil-water separating device and a floating oil collecting system. The device comprises an oil gathering chamber (2) enclosed by a wall (1). At least a part of the surface of the wall (1) is covered with a porous, oleophilic and hydrophobic layer (3), which allows penetration of water and oil. The device further comprises a fixed layer (4) covering on the surface of the porous, oleophilic and hydrophobic layer (3) for limiting the flowing of the porous, oleophilic and hydrophobic layer (3), which allows the penetration of water and oil. The pore diameter of said porous, oleophilic and hydrophobic layer (3) is 300-850 ?m, and the porosity is 10-40%.

Abstract: An anti-penetration and gas permeable potting container and preparation method thereof are disclosed. The anti-penetration and gas permeable potting container is made by bonding aggregate particles with hydrophobic binder, and pores which allow gas molecules to penetrate and liquid water molecules not to penetrate are formed between adjacent aggregate particles. Further, a potting planting container applying said potting container is disclosed, wherein it includes a cultivating layer, and a base anti-penetration layer formed of waterproof and gas permeable particles which is provided between the potting container and the bottom of the cultivating layer. Pores which allow gas molecules to penetrate and liquid water molecules not to penetrate are formed between adjacent waterproof and gas permeable particles. Said pores are thoroughly distributed on the base anti-penetration layer. The container can prevent water from flowing from its bottom, and has gas permeable property.

Abstract: A composition used for high-strength impermeable concrete. The composition contains sand, stone, cement, water reducer, water and reinforced impermeable sand. The reinforced impermeable sand includes aeolian sand and binder covering the surface of the aeolian sand. The reinforced impermeable sand can fill the gap between the sand and the stone, and well combine various components in the composition, and suppress the seepage phenomenon of the molded concrete, thereby greatly improving the strength and impermeability of the concrete.

Abstract: A system of water collecting, cleaning, and storing comprises a top-opened water storing container (1), with the wall of which a watertight structure; a collecting well (2) provided in the water storing container (1), which has a lid (6) and has a wall of permeable structure through which water exchange between the water storing container (1) and the collecting well (2) is achieved; filling elements (4) filled between the collecting well (2) and the water storing container (1), on top of which a pervious surface layer (5) is paved.