4results about How to "Save volume" patented technology

The invention belongs to the technical field of chemical engineering separation, and provides a natural eutectic solvent and a preparation method and application thereof, the natural eutectic solvent comprises the following components: caprolactam, citric acid and water; wherein the molar ratio of caprolactam to citric acid is (1-4): (1-2); the mass of the water is 20-40% of the sum of the mass of the caprolactam and the mass of the citric acid. By introducing water as a third component, the viscosity of the system is effectively reduced, the mass transfer performance is improved, and the denitrification efficiency is improved. The eutecticevaporate solvent provided by the invention can provide more reaction sites, has relatively strong removal capacity and selectivity on nitrogenous organic matters, and can realize efficient denitrification under mild conditions. The natural deep-eutectic solvent prepared by the preparation method disclosed by the invention is applied to removal of basic nitrides of oil products, and has the advantages of short time consumption and low dosage, namely high removal efficiency.

A low-drug coagulation-ultrafiltration device and a secondary coagulation-ultrafiltration device for dealing with high turbidity belong to the field of water treatment technology. The present invention solves the problem of low water treatment efficiency and inability to deal with sudden high turbidity water treatment in existing water treatment equipment. It includes a low-drug coagulation-ultrafiltration device, an intermediate water tank and a second dosing assembly tank. The second dosing assembly tank is connected to the coagulation assembly tank through a pipeline. The water inlet and outlet of the intermediate water tank are connected to the upper part of the inclined tube sedimentation area and the upper part of the coagulation assembly tank through the fourth water inlet pipe and the fifth water inlet pipe respectively. The pipeline is controlled by setting valves on each pipeline. Adaptive treatment of high turbidity changes in raw water is achieved. In severe weather such as heavy rain, high turbidity water treatment is achieved by starting the intermediate water tank and adding potassium permanganate to strengthen secondary coagulation, thereby reducing the cost of chemicals and reducing the floor space. When the water quality conditions are normal, such as low turbidity, it can directly enter the membrane filtration assembly tank without passing through the intermediate water tank.

The application provides a device for collecting condensation of an electric appliance and a preparation method, which comprises a humidity sensing device, a directional transmission part, an enrichment transfer part and a power supply part. The directional transmission part is arranged at a condensation generation position of the electric appliance. The humidity sensing device is connected to one side of the directional transmission part facing the condensation generation position. The enrichment transfer part is connected to the other side of the directional transmission part. The power supply part is connected to the humidity sensing device. When the humidity sensing device senses the condensation generation, the power supply part supplies power to the directional transmission part. The directional transmission part directionally conducts the condensation to the enrichment transfer part under the electric osmosis effect. The device for collecting condensation of an electric appliance and the preparation method provided by the embodiment of the application can directionally collect the condensation generated by the electric appliance, avoid the problems of large volume, high cost and high power consumption caused by the dehumidification mode of a fan or a dehumidifier, and are more widely applied.

A salt-avoiding cultivation method for crops in saline-alkali land, wherein the cultivation method comprises the following steps: step 1, measuring the thickness a of the saline-alkali layer of the saline-alkali land; step 2, digging a planting hole formed by the saline-alkali surface layer, wherein the depth b of the planting hole is greater than the thickness a of the saline-alkali layer; step 3, placing a cultivation container in the planting hole, wherein the height c of the top of the cultivation container is higher than the saline-alkali surface layer, so as to prevent external saline-alkali land from entering the planting hole; step 4, the cultivation container is filled with a cultivation matrix, and the bottom of the cultivation container is in close contact with salt-free soil; step 5, in arid areas, a drip irrigation head is inserted into each cultivation container for irrigation and topdressing; step 6, implanting crop seeds or seedlings into the cultivation matrix for maintenance and planting; step 7, selecting different locations and repeating the operations of steps 1 to 6 every year, so as to gradually improve the soil quality of the saline-alkali land through the cultivation matrix.