Settling algae collection device and method for measuring algae settling rate

Abstract

The invention provides a settling algae collection device which comprises a cylindrical guide column. A filter screen is arranged at an inlet in the top of the guide column, a screen fixing cover for fixing the filter screen to the top of the guide column is arranged on the filter screen and is provided with an inlet, the bottom of the guide column is connected with a collection disc, the bottom of the side wall of the guide column is provided with a water outlet pipe, and the bottom of the collection plate is provided with a discharge pipe. In addition, the invention further provides a method for measuring algal settling rate by the settling algae collection device. The algae settling rate can be captured in situ in the field monitoring process, settling rules of different algae can be analyzed according to conditions of the different algae, and the method is of great significance for correctly understanding algal bloom formation and disappearance mechanisms and performing algal bloom prediction and forecast.

Description

technical field [0001] The invention relates to the field of water environment, in particular to a settling algae collecting device and a method for measuring the settling rate of the algae. Background technique [0002] At present, some reservoirs and lakes in my country are in a state of eutrophication, accompanied by algae blooms, which pose a threat to river and lake ecosystems and drinking water safety. [0003] The occurrence of algae bloom is a complicated process, which is mainly affected by natural conditions such as water flow, water temperature, nutrient salt, and light, as well as biological factors such as algae death, sedimentation, aggregation, and predation. The effect of vertical distribution is extremely significant. Because the individual algae are small, the density is low, and they are easily decomposed by microorganisms, it is difficult to capture the algae settlement process by conventional methods. At present, most of the work on algae settlement is ...

AI Technical Summary

Problems solved by technology

Because the individual algae are small, the density is low, and they are easily decomposed by microorganisms, it is difficult to capture the algae settlement process by conventional methods. At present, the work on algae settlement is mostly based on empirical values ​​and indoor laboratory results.

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