33 results about "Biological phase" patented technology

A ponderomotive phase plate system and method for controllably producing highly tunable phase contrast transfer functions in a transmission electron microscope (TEM) for high resolution and biological phase contrast imaging. The system and method includes a laser source and a beam transport system to produce a focused laser crossover as a phase plate, so that a ponderomotive potential of the focused laser crossover produces a scattering-angle-dependent phase shift in the electrons of the post-sample electron beam corresponding to a desired phase contrast transfer function.

A three stage, multiple phase anaerobic digestion system and method designed to separate the biological phases, optimize microbial activity in each phase, and significantly increase system reliability and energy production. The system physically separates the biological phases of anaerobic digestion based on particle size, particle density, and solubility of metabolic products. The system allows a complex multi-phased biological system to develop without the need for excessive control or operator intervention.

The invention discloses a method for improving the anaerobic digestion performance of biomass wastes by a biological phase separation and optimization technology and belongs to the technical field of treatment and recycling of the solid wastes. The technology is characterized in that: solid residue and liquid of materials are subjected to anaerobic digestion under different conditions, a liquid phase enters a methane production reactor directly, solid matter enters an acidification reactor, acidification phase starting optimization of two-phase anaerobic digestion is performed, and then a product enters the methane production reactor, and mass distribution of acidification and methanation phases is optimized, so the coupled linkage of the acidification phase and the methanation production phase is realized, different material components can be fully degraded, and the pH buffering capacity of a microorganism system can be improved; and therefore, the material inlet load of the whole system can improved, the volume of the reactor is reduced, treatment cost is reduced, and the conversion rate of the system is improved.

The invention discloses a water quality stabilization device and technology for circulating cooling water. According to the technology, with DSA electrode electrochemical water quality stabilization as the core, the technological process of electrolysis, descaling, filtration and scale concentration is optimized to achieve water quality stabilization control over the circulating cooling water. In the electrochemical action process, raw water enters an electrolysis zone through a water distribution system for a softening reaction, Cl2 is generated at the same time to achieve effective control over the system biophase, a subsequent fiber bundle filtering system effectively shields calcium carbonate crystal nuclei and biological slime generated by the electrochemical action, and when a cathode plate scales and the electrochemical process is affected, an intermediate electrode is reversely connected to descale the cathode plate. The intermediate electrode is introduced into the technology, and thus the cathode plate is effectively descaled without affecting the service life of an anode; multiple water quality stabilization units for raw water distribution, an electrochemical reaction, biophase control, suspended solid filtration and the like are integrated, and thus the integration level of main equipment is increased; meanwhile, solid-liquid separation and sludge concentration are achieved in the main equipment, it is unnecessary to additionally arrange other equipment or devices, the mechanization degree is high, the application range is wide, the capital construction investment and the operation cost are low, the occupied area is small, and operation is easy.

The invention discloses a preparation method of four-component microcapsules with biocompatibility. The multi-component system is composed of sodium alginate (SA), sodium cellulose sulfate (CS), calcium chloride and polymethylene biguanidine hydrogen chloride (PMCG). The mixture of SA and CS is dropped into calcium chloride Solid pre-capsules are formed in the solution, and then transferred into PMCG for reaction to obtain microcapsules. The commercially available raw material PMCG is a high-viscosity aqueous solution containing 35% PMCG, which contains small molecular impurities that are toxic to microorganisms. After ethanol precipitation, centrifugation, vacuum drying and freeze-drying, the harmful substances can be completely removed. . The capsules prepared by the present invention can not only independently adjust the parameters of the capsules, such as: capsule size, film thickness, mechanical strength and permeability, and the characteristics of the capsules can be adjusted and optimized according to different requirements of practical applications; Capacitive, is a promising and well-performing immobilization system for cell culture.

This invention relates to a method for treating wastewater with biomembrane filler with stacked ball structure for reducing sludge amount. The method comprises: hanging and culturing biomembrane filler with stacked ball structure, domesticating biomembrane, inoculating biomembrane, and treating wastewater. The method can realize the treatment on high-concentration organic wastewater, such as soybean sauce wastewater or domestic sewage. The stacked ball structure enriches the biological phase, and avoids the restriction of specific surfacearea to the biological amount in traditional biomembrane method. The biomembrane filler can largely reduce sludge amount by adjusting the running parameters. This invention can omit double precipitation pool and residual sludge treatment apparatus, thus can lower investment and running and management cost. The reduction of sludge can avoid secondary pollution caused by residual sludge treatment and sludge final treatment.

The invention discloses a modeling method of a heavy metal optimal control pollutant screening model based on a river ecosystem, and relates to the technical field of evaluation of risks of the river ecosystem. The modeling method of the heavy metal optimal control pollutant screening model based on the river ecosystem aims to screen one or more heavy metal optimal control pollutants to represent the heavy metal pollution status of a river. The method includes the steps that toxic coefficients, pollution indexes and the detection ratio of heavy metal are selected to calculate aqueous phase ecological risk indexes, biological phase ecological risk indexes and solid phase ecological risk indexes respectively, the heavy metal optimal control pollutant screening model is built, and heavy metal with high comprehensive ecological risk indexes is screened as the heavy metal optimal control pollutants of the river in a research region. The built model is applied to evaluation of the combined effect of five toxic heavy metal pollutants of the Songhua River, and the research conclusion is matched with correlational research results of other scholars about the Songhua River. The model is used for screening the heavy metal optimal control pollutants based on the river ecosystem.