A floating device to be used in groups to form a floating cover that floats over volumes of water or liquids used in industry, mining and agriculture, directed to reduce evaporation, algae formation and gas emanation. The device comprising an outer shell consisting of outwardly convex covers and lateral edges that have a polygonal shape in a plan view, vertical wall surfaces extending from the edges of the covers, wherein each vertical wall surface joins at the level of the middle plane of the device with the edges of an inner shell.

A floating device to be used in groups to form a floating cover that floats over volumes of water or liquids used in industry, mining and agriculture, directed to reduce evaporation, algae formation and gas emanation. The device comprising an outer shell consisting of outwardly convex covers and lateral edges that have a polygonal shape in a plan view, vertical wall surfaces extending from the edges of the covers, wherein each vertical wall surface joins at the level of the middle plane of the device with the edges of an inner shell.

A floating roof assembly includes longitudinal girders, and floating members arranged in rows that alternate with the longitudinal girders. Upper and lower press bars are disposed across and fixed to the longitudinal girders. Each of the upper and lower press bars has fastening holes each of which has a first hole portion and a second hole portion. Fastening members connect the upper and lower press bars to the longitudinal girders through the fastening holes. When the fastening members reach the second hole portions of the upper and lower press bars, the longitudinal girders can increase a clamping force thereof to clamp the floating members.

A sampling device includes a pig-retaining pipe, a plurality of pipes extensions, a plurality of pipe couplings, a winch and support jig, a sample spout, a bottom cap, a pig, and a cable. A storage tank holds product-fuel, water, sludge, and a hard volume. The sampling device is used to collect and sample contents of the storage tank. The sampling device is assembled with the pig attached to a bottom cap coupled to the pig-retaining pipe. The sampling device is inserted into the storage tank to the desired depth. Contents of the storage tank enter into the sampling device through openings in the pig-retaining pipe. The winch is used to pull the cable upwards and draw the pig up through the sampling device. As the pig is pulled upwards, contents exit through the sample spout. The contents are stored in a container that is sent to a laboratory for analysis.

A sampling device includes a pig-retaining pipe, a plurality of pipes extensions, a plurality of pipe couplings, a winch and support jig, a sample spout, a bottom cap, a pig, and a cable. A storage tank holds product-fuel, water, sludge, and a hard volume. The sampling device is used to collect and sample contents of the storage tank. The sampling device is assembled with the pig attached to a bottom cap coupled to the pig-retaining pipe. The sampling device is inserted into the storage tank to the desired depth. Contents of the storage tank enter into the sampling device through openings in the pig-retaining pipe. The winch is used to pull the cable upwards and draw the pig up through the sampling device. As the pig is pulled upwards, contents exit through the sample spout. The contents are stored in a container that is sent to a laboratory for analysis.

Systems and methods are disclosed for vaporization suppression. Vaporization suppression may include, for example, evaporation control and/or odor control. A layer of foam glass aggregates may be placed on a body of water. Bodies of water may include natural and man-made aqueous bodies (such as, for example, ponds, lakes, lagoons, reservoirs, tanks, pools, runoff areas, etc.). Water may include clean water, natural water, rainwater, runoff, industrial output, manure slurries, leachates, treatment effuse, etc.). When placed, the foam glass aggregates in contact with the water may have a first moisture content. At equilibrium, the foam glass aggregates in contact with the water may have a second moisture content. The second moisture content may be greater than the first moisture content. The foam glass aggregates in contact with the water may have a bulk density at the second moisture content that is sufficient to maintain buoyancy at the surface of the body of water.

Systems and methods are disclosed for vaporization suppression. Vaporization suppression may include, for example, evaporation control and/or odor control. A layer of foam glass aggregates may be placed on a body of water. Bodies of water may include natural and man-made aqueous bodies (such as, for example, ponds, lakes, lagoons, reservoirs, tanks, pools, runoff areas, etc.). Water may include clean water, natural water, rainwater, runoff, industrial output, manure slurries, leachates, treatment effuse, etc.). When placed, the foam glass aggregates in contact with the water may have a first moisture content. At equilibrium, the foam glass aggregates in contact with the water may have a second moisture content. The second moisture content may be greater than the first moisture content. The foam glass aggregates in contact with the water may have a bulk density at the second moisture content that is sufficient to maintain buoyancy at the surface of the body of water.

A floating device to be used in groups to form a floating cover that floats over volumes of water or liquids used in industry, mining and agriculture, directed to reduce evaporation, algae formation and gas emanation. The device comprising an outer shell consisting of outwardly convex covers and lateral edges that have a polygonal shape in a plan view, vertical wall surfaces extending from the edges of the covers, wherein each vertical wall surface joins at the level of the middle plane of the device with the edges of an inner shell.

A floating device to be used in groups to form a floating cover that floats over volumes of water or liquids used in industry, mining and agriculture, directed to reduce evaporation, algae formation and gas emanation. The device comprising an outer shell consisting of outwardly convex covers and lateral edges that have a polygonal shape in a plan view, vertical wall surfaces extending from the edges of the covers, wherein each vertical wall surface joins at the level of the middle plane of the device with the edges of an inner shell.

Systems and methods are disclosed for vaporization suppression. Vaporization suppression may include, for example, evaporation control and/or odor control. A layer of foam glass aggregates may be placed on a body of water. Bodies of water may include natural and man-made aqueous bodies (such as, for example, ponds, lakes, lagoons, reservoirs, tanks, pools, runoff areas, etc.). Water may include clean water, natural water, rainwater, runoff, industrial output, manure slurries, leachates, treatment effuse, etc.). When placed, the foam glass aggregates in contact with the water may have a first moisture content. At equilibrium, the foam glass aggregates in contact with the water may have a second moisture content. The second moisture content may be greater than the first moisture content. The foam glass aggregates in contact with the water may have a bulk density at the second moisture content that is sufficient to maintain buoyancy at the surface of the body of water.