Experimental device and experimental method for simulating nitrogen and phosphorus release of water sediment

By designing an experimental device that includes environmental simulation, water quality control, mobile monitoring, and automatic sampling, the problem that existing devices cannot accurately reflect sediment material migration was solved, and precise simulation and data accuracy of sediment nitrogen and phosphorus release were achieved.

CN121978287APending Publication Date: 2026-05-05KUNMING INSTITUTE OF ECOLOGICAL & ENVIRONMENTAL SCIENCES (KUNMING ENVIRONMENTAL ENGINEERING TECHNOLOGY RESEARCH CENTER KUNMING LOW CARBON CITY DEVELOPMENT RESEARCH CENTER KUNMING ENVIRONMENTAL POLLUTION DAMAGE IDENTIFICATION & ASSESSMENT CENTER) +1
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Patent Information

Application Number
CN202610452130.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-04-08
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

Existing simulated water sediment devices cannot accurately reflect the migration and transformation processes of materials inside the sediment, resulting in biased detection data.

Method used

An experimental device for simulating nitrogen and phosphorus release from sediments in aquatic bodies was designed. It includes an environmental simulation unit, a water quality control unit, a mobile monitoring unit, and an automatic sampling module. The intelligent control module enables precise control of the aquatic environment and multi-point monitoring, and a high-precision injection pump is used to sample interstitial water from sediments.

Benefits of technology

It improves the authenticity and repeatability of experiments, accurately reflects the dynamic changes in nitrogen and phosphorus migration and release in sediments, significantly reduces human intervention errors, and improves the accuracy and representativeness of detection data.

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Abstract

The invention belongs to the technical field of environmental engineering, and discloses an experimental device and an experimental method for simulating nitrogen and phosphorus release of water body sediments. The device comprises an experiment main body unit, an environment simulation unit, a water quality regulation and control unit, a mobile monitoring unit, an automatic sampling module and an intelligent regulation and control module. Wherein the experiment main body unit is provided with a water tank for accommodating sediments and a water body; the environment simulation unit is integrated with a water flow disturbance assembly, an aeration assembly, an illumination assembly and a heating assembly; the water quality regulation and control unit regulates water chemical parameters; the mobile monitoring unit performs spatial dynamic detection on the water body; the automatic sampling module automatically collects overlying water and interstitial water of the sediment according to a specified time interval; the intelligent regulation and control module coordinates operation of all the units, and multi-scene simulation and closed-loop regulation and control are achieved. Accurate simulation, real-time monitoring and intelligent regulation and control of the migration and release process of the sediment-water interface substance under different environmental conditions can be achieved, and the accuracy and comprehensiveness of experimental data are remarkably improved.
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