摘要:
A device and process for the remediation of water from small biological treatment plants. The invention envisages a remediation device for water remediation, which is connected to the outflow pipe of a small biological treatment plant (SBWTP), and connected to a water supply system for the consumers, consisting of a nano-remediation unit, oxidation units, and ion-exchange and filtration units. The process of water remediation is also envisaged, which leads to the purification of water to the quality of drinking water, the process comprising the steps of nano-remediation with zero-valent iron nanoparticles (nZVI), purification with oxidizing agents, ion-exchange purification and filtration on granular activated carbon. Finally, remediated water is suitable for all secondary human needs and for use in industry, for example concrete making.
摘要:
The object of the invention is a process for producing alkaline steatite ceramics having controlled electrical properties for electrotechnology. Alkaline steatite ceramics of the invention belongs to a group of magnesium silicates of C 220 type. Steatite ceramics is an electrical insulator with a relatively low electrical conductivity at increased temperature. To produce the alkaline steatite ceramics the materials talc, kaolin, clays, bentonite and dolomite were used. The mixture can contain up to 1.5 % by weight of iron oxides. After the mixture is ground and the products are formed, the blanks are fired at a temperature in the range from 1280 to 1340 °C for 1 hour to 10 hours. Alkaline steatite ceramics with bentonite without added kaolin has specific electrical resistance at 400 °C 1.4 x 106 Ohm m. The ceramics, in which the total content of bentonite is replaced by kaolin, has specific electrical resistance at 400 °C more than 1 x 108 Ohm m.
摘要:
The invention refers to a process for obtaining health- and environment acceptable construction materials from the soil containing water soluble compounds of heavy metals, which are harmful for health and environment and the content of which essentially exceeds still acceptable border values. During the first step such contaminated soil is prepared, upon which a dispersion of Fe nanoparticles is admixed to said soil, which is then followed by adding of bentonite clay in powder form and homogenization. Upon that, calcareous fly ash is added, which is optionally followed by adding water and mixing.
摘要:
A humanoid torso mechanism is provided that simulates the actual movement of the human body. The torso includes a unique combination of mechanism and controlled rotary axes with actuators (4-8) arranged in a geometry that enables human-like movements. The construction provides mounting surfaces for other humanoid parts such as legs (3), arms (2) or head (1). The structure of the present invention comprises five degrees of freedom. All degrees of freedom are achieved with rotary axes and are concentrated in the lower part of torso except the last one on the top. The lower torso portion of the assembly includes a torso basic rotation around the vertical axis, which is attached to a base such that the output shaft extends vertically upwards. The next axis is attached to the first axis arrangement structure for the torso tilting function. The next two axes are arranged for tilting the torso forward-and-back in the hip and for the buckling of the mechanical spine structure. That combination of buckling and bending mechanical structures is carried out in a unique way that allows the simulation of buckling and bending the spine in a way very similar to the human body. This is very realistic and effectively enforced movement that is very similar to human body movement. The last axis mounted on the top of the torso rotates the shoulder girdle around the vertical axes. Movement of each axis is driven by actuators which are attached in each joint of the torso structure and independently controlled by a computer.