8 results about "Periphyton" patented technology

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.

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 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 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.