13 results about "Periphyton" patented technology

The invention relates to the technical field of periphyton incubators, and discloses a device for culturing periphyton, which comprises an incubator body, a control operation panel connected to the top of the incubator body and a culture container connected in the incubator body. Through mutual cooperation of an arc-shaped box, a chain, a chain wheel and a lamp shaft seat, the visible light simulation illumination lamp with the wavelength of 400-700 nm can move and is similar to rising of the sun from low to high and then gradually reduced, so that the illumination position is dynamically changed, a more natural growth environment is simulated, the illumination intensity and the duration time are synchronously controlled, and the illumination effect is improved. Therefore, the proper growth temperature in the incubator is maintained, the change rule of the illumination intensity and the illumination angle in one day is truly represented, artificial stable growth conditions closer to the natural environment are provided for periphyton, and efficient growth and metabolism of periphyton at the proper temperature are promoted.

An aquatic habitat structure for a body of water includes tree sections coupled together to form an artificial tree. Each tree section includes a trunk having a cylindrical shape with opposing ends and a curved surface extending therebetween, and a first plurality of leaflets covering the curved surface of the trunk. Spaced-apart layers of limbs extend outwards from the curved surface of the trunk. Each layer of limbs includes a plurality of limbs, and each limb includes a plurality of branches. Each branch is covered by a second plurality of leaflets. Each leaflet in the first and second plurality of leaflets provide a biologic surface area for adherence of periphytons to enhance water quality in the body of water, and with the biologic surface area including textured regions to provide additional biologic surface areas for the adherence of the periphytons to further enhance the water quality.

An integrated biofilter for a re-circulating aquaculture system is provided. The biofilter may include a moving bed biofilm reactor (MBBR) with biomedia elements configured to support bacteria growth and nitrification of the wastewater and an MBBR output configured to output biomass generated by the bacteria. The biofilter may also comprise a periphyton biofilter configured to introduce oxygen into the wastewater, and a halophyte biofilter comprising a plurality of plants. The halophyte biofilter configured to capture nutrients in the wastewater to generate edible plant mass.

The invention discloses a paddy field nitrogen cycle simulation and optimization management method, a paddy field nitrogen cycle simulation and optimization management system and a storage medium, and belongs to the technical field of agro-ecosystem modeling and nitrogen cycle management. Dynamically simulating biomass change of periphyton and a nitrogen exchange process of the periphyton with surface soil and a field water accumulation layer, and outputting nitrogen destination data; generating a nitrogen fertilizer management strategy by combining the growth stage characteristics of the periphyton on the basis of the output nitrogen element destination data; wherein the periphyton integrated model is constructed by adding a periphyton dynamic module in a paddy field nitrogen cycle model; by integrating the periphyton biodynamics module, the regulation and control effect of the periphyton biodynamics module on a nitrogen source-sink function is quantified, so that a nitrogen fertilizer management strategy is optimized.

The invention discloses a periphyton carrier for breeding tail water virus enrichment and killing and a preparation method thereof.The periphyton carrier is of a core-shell structure, the core is a signal layer with catalytic particles loaded on the surface, the shell is a supporting layer, the signal layer is gel with dispersed cyclic diguanylic acid, and the supporting layer is a gel layer with dispersed cyclic diguanylic acid. The catalytic particles are nano-carriers loaded with sodium percarbonate and potassium ferrocyanide, and the supporting layer is a polymer containing pores. By integrating signal molecule regulation and control and a free radical synergistic inactivation mechanism, the virus enrichment capacity of the biological membrane is optimized, and the in-situ killing efficiency is enhanced. According to the periphyton carrier, the pertinence and response speed of virus treatment are improved, the environmental risk and cost bottleneck of a traditional method are overcome, an innovative solution is provided for safe management of aquaculture water, and the virus inactivation rate can be larger than or equal to 99.9%.

This invention discloses a device for inducing the amplification of periphyte organisms in paddy fields, comprising a hollow amplification cavity enclosed by a shell. An artificial carrier, an aeration device, a light module, and a temperature control module are arranged within the amplification cavity. The artificial carrier is a porous material with a pore size of 80-250 μm, a porosity of 85-95%, and a total pore area of ​​0.20-0.80 m². 2 / g. Furthermore, this invention also provides a pericarp biofilm and its applications. The beneficial effects are: the artificial carrier has abundant microbial attachment points, which can promote the growth and expansion of the biofilm and prevent detachment; it can also effectively reduce the mechanical shear force of water flow on microorganisms, intercept suspended organic matter in sewage, provide nutrients for microorganisms, lower the surface energy barrier for microbial attachment, and make it easier for various bacterial and algal communities to colonize, achieving rapid biofilm formation and mass production.

An aquatic habitat structure for a body of water includes tree sections coupled together to form an artificial tree. Each tree section includes a trunk having a cylindrical shape with opposing ends and a curved surface extending therebetween, and a first plurality of leaflets covering the curved surface of the trunk. Spaced-apart layers of limbs extend outwards from the curved surface of the trunk. Each layer of limbs includes a plurality of limbs, and each limb includes a plurality of branches. Each branch is covered by a second plurality of leaflets. Each leaflet in the first and second plurality of leaflets provide a biologic surface area for adherence of periphytons to enhance water quality in the body of water, and with the biologic surface area including textured regions to provide additional biologic surface areas for the adherence of the periphytons to further enhance the water quality.

The invention discloses a periphytic algae classification and identification method based on a fluorescence spectrum, and the method comprises the steps: fitting a single-class group fluorescence intensity-biomass quantification model and constructing a mixed model based on the characteristic fluorescence peaks of all types of periphytic algae samples of pure culture, and carrying out the artificial mixed sample verification and field sample cross validation optimization of the mixed model, an environment factor compensation coefficient is introduced to correct an error; the method comprises the following steps: performing pretreatment and fluorescence detection on a to-be-detected algae sample, inputting an obtained mixed fluorescence spectrum into a preset mixed algae fluorescence intensity-biomass quantification model, performing spectrum unmixing based on a non-negative least square method, and outputting the biomass of each category of periphytic algae in the to-be-detected sample. The method can solve the problem of rapid classification of mixed periphytic algae, has the characteristics of no dependence on manual judgment, easy standardization, high efficiency and expandability, can realize in-situ detection without destroying algae communities, and is suitable for the fields of water environment monitoring and ecological research.

The application belongs to the technical field of soil improvement, and particularly relates to a method for improving acidification of paddy field soil and application thereof. By adding slow-release calcium peroxide in an organic-inorganic composite carrier, slow reaction of the slow-release calcium peroxide with water is facilitated, and then oxygen and OH ‑ are released, and the acidification of the paddy field is continuously improved; by appropriately adding the organic-inorganic composite carrier, the biomass and activity of the periphyton are improved, which is beneficial to eliminating the acid barrier of the gley soil paddy field and improving the effective fertility of the paddy field soil.

The invention relates to a method and a production plant of combined production of oil and an inert material acting as a carbon sink, preferably biochar, from a feedstock of waste oily produced water, preferably from the oil, gas or geothermal industry, preferably to achieve a minimum carbon footprint of the oil recovered in this process and to produce, from the recovered oil, a low carbon intensity fuel, in particular low carbon intensity aviation fuel or fuel for maritime applications. The method comprises the following steps: - a) physical separation and recovery of a first fraction of oil from the waste oily produced water; - b) optionally polishing the waste oily produced water effluent of step a) by a biological treatment in a constructed wetland system, mangrove wetland or periphyton bioreactor; - c) cultivating biomass using the treated water effluent of step a) and / or b) to capture CO2 from the atmosphere; and - d) harvesting the cultivated biomass of step c) and, optionally, biomass produced in step b) and converting it into the inert material acting as a carbon sink, preferably the biochar.

The application belongs to the technical field of soil improvement, and particularly relates to a method for increasing the content of active organic carbon in paddy field soil. By adding crop straw, inorganic fertilizer and a mixture composed of algal species and bacterial species in an artificial carrier, the effect of reasonably optimizing the components of the artificial carrier is achieved, and then necessary nutrients are provided for the cultivation of periphyton; when the artificial carrier is appropriately put into the paddy field with the depth of 2-3 cm of the field surface water, the rapid growth of periphyton in the flooded environment is facilitated, and the photosynthetic carbon fixation and extracellular material secretion capacity of periphyton are simultaneously improved, and then the effect of increasing the active organic carbon in the paddy field soil is achieved.

The invention relates to the technical field of microbiological culture, and discloses a periphyton efficient culture system and a water purification method.The periphyton efficient culture system comprises an environment regulation and control module, a dynamic nutrition supply module, a water purification module, a water purification module and a control module, the high-adhesion biological membrane support module is used for improving the stability and adhesion of a biological membrane, the low-energy-consumption culture module is used for improving renewable energy sources and a sewage recycling technology, the ecological competition module is used for introducing functional strains, a community structure is regulated and controlled through biological competition, and the self-repairing ecological feedback module is used for sensing and feeding back to realize community abnormity recognition and automatic repairing. The whole-process monitoring and optimization module is fused with an AI algorithm and supports remote sensing and system optimization, and the low-carbon resource recovery and biological product conversion module is used for capturing and fixing CO2 by using periphyton. Based on an environment regulation and control and ecological feedback dual-core mechanism, the system realizes accurate regulation of environment parameters, stable maintenance of biocenosis and minimization of manual intervention, and an efficient and stable artificial ecological system is constructed.

The utility model relates to the technical field of water environment ecological restoration, in particular to a curtain type periphyton biofilm culturing device for improving nitrogen and phosphorus retention capacity of a small and micro water body, which comprises four support columns respectively arranged at two ends of two PVC (polyvinyl chloride) plastic steel rods, and a biofilm culturing component used for creating periphyton attachment conditions is arranged between the two PVC plastic steel rods. The film hanging assembly comprises a plurality of thin plastic steel rods which are arranged between the two PVC plastic steel rods at equal intervals, a plurality of nylon ropes which are distributed at equal intervals are further arranged on the two PVC plastic steel rods, and a plurality of suspension balls which are distributed at equal intervals penetrate through the nylon ropes. Compared with natural carriers in small rivers, river channels, lakes, reservoirs and ponds, the elastic biological filler is more beneficial to attachment of periphyton and increase of biomass, the contact probability of nutrient salts such as nitrogen and phosphorus in water and periphyton biological membranes is increased, the interaction between the nutrient salts and active sites of the biological membranes is enhanced, and the biomembrane activity is improved. The nutritive salt retention process is influenced, so that the nitrogen and phosphorus retention capacity of the surface water body is improved.