44results about How to "Reduce reproduction rate" patented technology

The invention belongs to a low-carbon energy-saving method for treating polluted water quality of a lake or a landscape lake, comprising an aeration type aerobic device, floating landscape aerobic devices, aquatic floating plants and cultured fishes, wherein the aeration type aerobic device is positioned in a water inlet of the lake or the landscape lake; the floating landscape aerobic devices are positioned in the lake or the landscape lake at intervals; the aquatic floating plants are distributed on the periphery of the lake or the landscape lake; and the cultured fishes are positioned in the lake or the landscape lake. The method mainly uses biological natural purification as a main method and mechanical purification as an auxiliary method, supplies power by using a clean carbon-free energy source, circularly increases the fluidity of a water body, can effectively purify polluted water, prevents phycophyta growth, improves the living environment of organisms in water and always retains aquatic oxygen content in a higher level. The invention has the advantages of simple operation, low treatment cost, low-carbon energy saving, no pollution, no noise, attractive appearance, environmental protection and good treatment effect.

The invention discloses a water clearing device for landscape water and artificial lakes, which is characterized in that it comprises: a water clearing device arranged in a water area (15) and a water clearing device for introducing water in the water area (15) into the water clearing device The solar water wheel (13); the water cleaning device includes a pool to be purified (5), an activated carbon layer (6), a plant adsorption layer (12), a gravel layer (11) and a purified water pool arranged in sequence from left to right (10), the water in the purified pool (10) is directly discharged into the water area (15). The water purification device for landscape water and artificial lakes provided by the present invention has obvious water purification effect, low cost, simple maintenance, low cost, simple application, beautiful appearance, one-time construction and lifetime benefits.

The invention discloses a water body collection system and a sampling method, and belongs to the technical field of water quality sampling. The collection system includes: a sampler, a water sample conveying power source, a water sample storage device, a conveying pipeline and a controller. The sampler is provided with a sampling cavity whose end communicates with the outside world, and the end of the sampling cavity that communicates with the outside world is immersed in a natural water body , the liquid inlet end of the water sample conveying power source is connected with the sampling chamber, the water sample storage device is connected with the water sample conveying power source, the conveying pipeline is arranged between the sampler and the water sample conveying power source, and the water sample conveying power source and the water sample Between the storage devices, the controller is electrically connected with the sampler and the water sample delivery power source. In the present invention, the communication end between the sampling cavity of the sampler and the natural water body is closed, and the water sample conveying power source discharges a predetermined amount of water samples in the sampling cavity of the sampler and then stops working, so as to avoid the internal storage of the sampling cavity of the water body sampler. Retaining the water sample reduces the reproduction rate of microorganisms in the water sampler.