2 results about "Potamogeton crispus" patented technology

This invention discloses an experimental device for evaluating the water purification performance of constructed wetlands under low-temperature conditions, relating to the field of wastewater treatment experimental technology. The device includes an environmental chamber and multiple parallel experimental units. The environmental chamber contains a low-temperature medium, and each experimental unit includes a water storage tank, a water pump, and a substrate-filled column. The water storage tank is partially submerged in the low-temperature medium and has a support plate inside. The support plate is arranged with a layer of *Potamogeton crispus* and a layer of aquatic plants from bottom to top, separated from the upper water purification zone by an intermediate filter. The water pump, substrate-filled column, and water storage tank are connected by pipelines to form a circulating water system. By simulating a cold winter environment using the low-temperature medium, and utilizing multiple independent experimental units, the purification efficiency of different substrate and plant combinations under low-temperature conditions can be compared simultaneously, recreating the low-temperature operation scenario of natural wetlands and achieving reliable and controllable testing of the water purification performance of constructed wetlands under low-temperature conditions.

The utility model relates to the technical field of potamogeton crispus planting, disclose a kind of degradable device for potamogeton crispus stone bud planting, including hemp rope net, the interstice of the hemp rope net is hinged with several potamogeton crispus stone bud bodies;The corner of the hemp rope net is equipped with the fixing device that can be fixed to the fixing device of installation device installation;The fixing device includes the L-shaped wedge of inserting into soil through the interstice of hemp rope net.This utility model has the advantages compared with prior art in that: potamogeton crispus stone bud can be fixed in river bottom.