Portable device and method for field monitoring of alga density

Abstract

The invention discloses a portable device and a method for field monitoring of alga density. The device comprises a floating platform, a bracket, a buoy and a display, wherein the floating platform is internally provided with an instrument container; the instrument container is internally provided with a storage battery bank, a power supply board, an alga monitor, a data converter and a peristaltic pump; a wireless communicator and a communication antenna are arranged above the bracket; the buoy is internally provided with a lifting motor and a sampling pipe extending into water via the lifting motor; the upper end of the sampling pipe extends to the peristaltic pump; and the peristaltic pump controls water quantity of a water sample acquired by the sampling pipe. The method comprises the following steps of: (1) instrument mounting, (2) sampling, (3) measurement and (4) transmission of measured data. The device and the method monitor a vertical distribution situation of algae in a shallow lake in real time and acquire the density of alga cell populations at different water depths.

Description

technical field [0001] The invention relates to a portable device and method for monitoring algae density in the field, and belongs to the technical field of water environment protection. Background technique [0002] In recent years, along with the rapid economic development, the ecological environment has been seriously polluted. "Water blooms" broke out successively in Wuhu, Taihu, Chaohu and other places in China. The essence of algae bloom is a phenomenon in which algae multiply and grow rapidly from low to high density after a sudden change in the water ecosystem. The large number of phytoplankton in the water and the eutrophication of the water body are the main reasons for the occurrence of algal blooms. It not only causes human beings to suffer huge economic losses, but also seriously endangers human health. [0003] In the prior art at present, the method for measuring algae mainly contains the following several kinds: [0004] Determination of algae biomass by...

AI Technical Summary

Problems solved by technology

[0010] Determination of Algal Biomass by Microscopic Cytometry: Heavy Workload, Poor Reproducibility, and Errors

[0011] Determination of chlorophyll content by spectrophotometry: the operation process is cumbersome, the time is long, and the accuracy is poor when the sample volume is large

[0012] Separation of chlorophyll pigments by liquid chromatography: the instrument is expensive, the analysis operation process is cumbersome, and it is generally not used for the rapid analysis of a large number of samples

[0013] Remote sensing monitoring method for vertical distribution of algae: expensive instruments, low data accuracy in extreme weather

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