33 results about "Pollutant transport" patented technology

The invention provides a three-dimensional sampling method for simulating transport of river contaminations. The method is characterized in that during contamination transport on-site simulation test, a catamaran reaches a testing section before contamination clusters; as the contamination clusters approach the testing section, the position of the catamaran is adjusted so as to allow the contamination clusters to be located between two boats and to be free of disturbance; and then a multi-point sampler is used to extract water samples at different water depths and different distances from an initial point so as to realize measurement of three-dimensional distribution of the concentration of the river contaminations. The three-dimensional sampling method provided by the invention realizes simultaneous and rapid sampling of a plurality of sampling points and guarantees representativeness and authenticity of the water samples.

Polycrystalline silicon chunks are packed for further processing and / or for shipment with minimal contamination by introducing the chunks into a cardboard container lined with a non-contaminating plastic. The process is economical, avoids the problems associated with packaging in plastic bags, and provides far less contamination and spillage during transport.

The application discloses a groundwater quality seepage simulation experiment device and its use method, which relate to the field of groundwater hydrodynamic simulation and groundwater pollutant movement dynamics. The experimental device includes a sand box, a water supply device, and a water quality detection device. Front panel, rear panel and side panels, the front and rear panels are connected by the bottom plate, the first extension plate and the second extension plate are connected on both sides of the bottom plate, and the infiltration water receiving box is arranged under the bottom plate, and the infiltration water receiving box and the water quality detection device There are multiple slots on the inside of the front and rear panels, side slots on the left and right sides of the inside, side panels are placed in the side slots, and permeable stones are placed in the slots; electric telescopic rods and pushers are installed on the first extension board plate, the second extension plate is provided with an electric telescopic rod, a rotating motor and a rotating loosening rake, and the electric telescopic rod, the water quality detection device and the rotating motor are all connected to the controller. The experimental device adopts an assembled structure, which is conducive to improving and adjusting the device according to the actual situation.