7 results about "Biological Absorption" patented technology

This invention relates to the field of deep-sea mining hose cleaning technology, specifically to an intelligent robot and method for cleaning adsorbed organisms on deep-sea mining hoses. The robot includes two shells, with a power storage compartment inside each shell for storing power. It also includes a visual drug application device for monitoring bioadsorption on the mining hose and performing preliminary drug treatment, a vortex-flow erosion device for further treatment of adsorbed organisms, a positioning and detection device for monitoring the treated mining hose, treating stubborn residual adsorbents, and monitoring the overall condition of the mining hose, an AUV thruster, and a communication control device. The communication control device includes an ACN underwater acoustic communication module and an intelligent processing module. The invention also includes a cleaning method using this robot. This application features multi-level collaborative cleaning, significantly improving the efficiency of bioadhesion removal, intelligent closed-loop control, and fully autonomous operation, reducing labor costs.

The application discloses a water body nitrogen biological removal capacity evaluation method based on macrobenthos functional traits, and comprises the following steps: S1, constructing a water body nitrogen biological removal capacity evaluation table based on macrobenthos functional trait evaluation final score; S2, collecting macrobenthos in the water body to be measured, and obtaining the final score of the macrobenthos functional trait evaluation based on the trait grade of the macrobenthos which is strongly related to the water body nitrogen biological removal rate, and then obtaining the corresponding classification based on the water body nitrogen biological removal capacity evaluation table. The application does not need to perform complex tracer adding, real-time water quality monitoring and cumbersome calculation process, only needs to collect and identify the macrobenthos in the stream, obtains the macrobenthos functional trait evaluation result, and then obtains the nitrogen biological absorption rate of the water body to be measured by means of the pre-constructed evaluation table. The application greatly reduces the workload, makes the whole evaluation process more simple and fast, and improves the evaluation efficiency.

The present invention discloses a genetically engineered bacterium construction and application for synthesizing curcumin glucoside, belonging to the field of genetic engineering. The present invention uses Escherichia coli BL21 (DE3) as an engineering strain, overexpresses two key enzymes involved in UDP-glucose synthesis in Escherichia coli, namely glucose-6-phosphomutase and UDP-glucose pyrophosphorylase, to increase the level of endogenous UDP-glucose in the cell, effectively improving the synthesis efficiency of whole-cell catalytic synthesis of curcumin glucoside; at the same time, overexpresses the UDP-glucosyltransferase CaUGT2 from Catharanthus roseus; the genetically engineered bacterium can efficiently synthesize curcumin monoglucoside and curcumin diglucoside, can effectively solve the solubility problem of curcumin, improve the biological absorption rate and biological availability of curcumin, and expand its application value in medicines, cosmetics and food.

A biocompatible antimicrobial composition effective against microbial biofilms, including in vivo biofilms containing gram-positive bacteria, can be delivered to and used near the spinal column of vertebrates. Once introduced to an area colonized with a bacterial biofilm, particularly an intervertebral disc, the antimicrobial composition weakens the EPS / ECPS macromolecules of the biofilm, which makes the entire biofilm structure susceptible to being dislodged from the affected area or biosorbed. Additionally or alternatively, certain of the subcomponents of the solute component, as well as perhaps the organic liquid(s) of the solvent component, might lyse microbes, particularly gram-positive bacteria, previously protected by the EPS / ECPS macromolecules. Swelling of and around previously impacted intervertebral discs can be reduced or eliminated, often resulting in appreciable reductions in patient pain levels.

The present invention discloses a method for regulating and recovering a sewage treatment system after a shock. The method comprises: when the fluctuation amplitude of the respiratory rate is less than 10% of the lower limit of the normal range for more than 60 minutes, an alarm is notified to the control system, water intake is stopped, and powdered activated carbon and a biosorbent are added to the system. The alarm is released when the respiratory rate returns to the normal range, and the addition of activated carbon is first stopped. When the effluent ammonia nitrogen concentration is lower than the emission standard limit, the addition of the biosorbent is stopped and water intake is restarted to continue operation. The system achieves rapid recovery after the shock and enters a stable operating state. The biosorbent is based on cross-linked chitosan embedded with calcium carbonate, on which heterotrophic bacteria are adsorbed and grown, wherein the heterotrophic bacteria account for 5% to 50% of the mass of the adsorbent. The method of the present invention can achieve early warning and timely eliminate the risk of shock. It does not require re-acclimation and cultivation of sludge, reduces recovery time, and ensures long-term stable operation of the system.

This application provides a water purification method applicable to plain water network areas, comprising: (1) investigating and analyzing the hydrodynamic and water quality characteristics of canals in plain water network areas; (2) selecting characteristic degrading microorganisms and immobilizing them on a biological absorption plate; (3) during the dry season, setting up a biological absorption plate mainly composed of anaerobic or facultative anaerobic bacteria inside the canal; (4) during the wet season, setting up a biological absorption plate mainly composed of aerobic or facultative aerobic bacteria on the canal slope; and (5) regularly managing and maintaining the biological absorption plate to ensure long-term water quality maintenance. This method is applicable to the efficient purification of polluted water bodies in canals of plain water network areas under different hydrodynamic conditions, solving the problem of water purification materials hindering flood discharge, and overcoming the problem of microorganisms being unable to effectively attach due to canal hardening. It can rebuild the natural ecology to a certain extent, enhance the self-purification capacity of the water body, and achieve a good ecological landscape and long-term maintenance of water environment quality.