A sediment sampler is a device used to collect sediment (sediment) at the bottom of water bodies, mainly for environmental monitoring, engineering assessment, and scientific research.
According to sampling requirements and environmental conditions, sediment samplers can be divided into the following types:
Grab type sampler structure: composed of a container with movable claws, which captures samples by placing them at the bottom of the water and opening the claws.
Applicable scenarios: Environments with solid sediment and large particles, such as rivers, lakes, ponds, and shallow sea areas.
Features: Simple structure and easy operation, but sample loss may occur due to debris obstructing the closure of the grab bucket.
Column sampler structure: including piston type column sediment sampler, gravity sampling tube, etc., collecting column samples through piston movement or gravity falling.
Applicable scenarios: Research that requires maintaining the original state and structure of sediments, such as time series change analysis.
Features:
High precision sampling: It can accurately control the sampling depth to ensure the acquisition of target layer samples.
Anti leakage design: Adopting a hemispherical valve and piston trap to avoid sample mixing or leakage.
Modular components: The main components are detachable for easy maintenance and transportation.
Main functions
Collecting sediment samples of water bodies: used to detect the distribution, accumulation and migration of pollutants in the sediments of water bodies (such as rivers, lakes, reservoirs, etc.). The sediment sampler is mainly used to collect sediment samples of lakes, rivers, reservoirs, oceans, and other water bodies, including sediment, sediment, sludge, swamp soil, and mud carbon soil.
Engineering evaluation: Monitor the dredging effect and evaluate the impact of changes in the water environment on the project.
Research application: Study ancient environmental changes, sediment composition in water bodies, and pollution tracing.
According to the collection method and collector structure, sediment samplers can be divided into various types, including manual samplers, self weight samplers, pressure samplers, and dredgers. Among them, manual samplers are suitable for small-scale collection, self weight samplers are suitable for large-scale collection, pressure samplers are suitable for deep water collection, and dredgers are suitable for large-scale water collection.