Intelligent liquid injection device for deep-sea sediment microorganism culture experiment

Abstract

The invention discloses an intelligent liquid injection device for a deep-sea sediment microorganism culture experiment. The intelligent liquid injection device mainly comprises an insertion device, a controllable slow-release liquid injection system, an interstitial water replacement monitoring system and a deep-sea peristaltic pump, the insertion device can insert the liquid injection needle tube and the interstitial water collection tube into a specified sediment position through gravity or other driving devices; the controllable slow-release liquid injection system is used for receiving an instruction and injecting a certain amount of culture liquid into the sediment through a liquid injection needle tube; the interstitial water replacement monitoring system is used for collecting sediment interstitial water and monitoring environmental parameters to formulate a liquid injection strategy. The device can simulate the diffusion process of substances at the deep-sea cold spring seepage position, and can provide a powerful tool for scientific research personnel to carry out long-term in-situ experiments of deep-sea sediment microorganisms.

Description

technical field [0001] The invention relates to the field of deep-sea sediment microbial culture experiments, in particular to an intelligent liquid injection device used for deep-sea sediment microbial culture experiments. Background technique [0002] The current microbial scientific research on deep-sea sediments is based on sampling and analysis, and what is studied is only the state of microorganisms at a certain point in time. Due to the lack of in situ experimental equipment and the inability to obtain time-series data on the life activities of the deep seabed, it is difficult to carry out research in frontier fields such as the response of deep-sea organisms to environmental changes, resulting in slow progress in deep-sea life science. [0003] Single-factor environmental change experiments are a common method in life science research. Scientists need to maintain the concentration of a substance in seabed sediments to observe the life activity process of microorganis...

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Problems solved by technology

Patent document CN105758687A discloses a deep-sea sediment in-situ cultivation and sealed sampling mechanism, but it only injects the nutrient solution into the deep-sea sediment once for the cultivation of microorganisms, and then takes the samples back after a certain time point. An experiment of changing the environment was carried out, but the problems of maintaining the experimental conditions and collecting the time series data required for the study of the life activity process were still unable to be solved.

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