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Oral broad-spectrum vibrio subunit microalgae vaccine for aquatic products and preparation method thereof

Resumen de: CN119925585A

The invention belongs to the field of microorganisms, and particularly relates to an oral broad-spectrum vibrio subunit microalgae vaccine for aquatic products and a preparation method of the oral broad-spectrum vibrio subunit microalgae vaccine. The invention provides an aquatic oral broad-spectrum vibrio subunit microalgae vaccine which expresses vibrio membrane protein OmpK by taking microalgae as a vaccine carrier. The gene expression cassette of the vibrio membrane protein OmpK is inserted into a genome of microalgae, and the sequence of the gene expression cassette of the vibrio membrane protein OmpK is as shown in SEQ ID NO: 4 after sequence optimization. When the microalgae vaccine is used for feeding cultured animals such as fishes and shrimps, the vibrio resistance can be remarkably improved, the environmental safety is high, and the large-scale production cost is low.

Sample collection container for liquid microalgae space technology test

Resumen de: CN119931821A

The invention discloses a sample collection container for a liquid microalgae space technology test. The sample collection container comprises a vibration isolation soft bag, a heat preservation module and a sample collection container, the vibration isolation soft bag is composed of an upper cover, a bag body and a zipper, a vibration isolation body made of polymer foam materials is arranged in the upper cover and used for relieving the influence of impact, overload, vibration and other environments on the heat preservation module and the sample collection container in the rocket launching and returning capsule returning period, and internal objects are protected to be smoothly injected into a rail and returned. The heat preservation module is composed of a shell, an inner cover and an inner container, and the inner container is filled with phase change cold storage materials. And the temperature control effect is achieved. And a suitable environment is provided for the liquid-based microalgae needing low-temperature descending. The sample collection container is composed of a bottle body, a one-way conducting valve, a diaphragm, a connector, a protective cap, a bottle cap and a guide pipe, and sample collection under the weightless environment is achieved. According to the invention, through vibration isolation design, air pressure balance design and one-way sealing design, a sample collection container and package for reliable liquid algae sample collection and protection

Sewage treatment device and sewage treatment method

Resumen de: CN119930098A

The invention relates to the technical field of sewage treatment, and discloses a sewage treatment device and a sewage treatment method.The sewage treatment device comprises a container, a diaphragm, a light source and a backflow pipe, a containing cavity is formed in the container, the diaphragm is arranged in the container and divides the containing cavity into a first area and a second area, and the diaphragm is suitable for small molecules and soluble solids to pass through; the light source is arranged on one side of the second area, the backflow pipe is communicated with the first area and the second area, the interior of the container is divided into two spaces through the diaphragm, sludge can only react in the first area, microalgae can only conduct photosynthesis in the second area, and the microalgae subjected to photosynthesis flows back into the first area through the backflow pipe, so that the microalgae can be recycled, and the yield of the microalgae is improved. The sludge activity can be improved, the sewage treatment aeration energy consumption can be reduced, the sewage treatment nitrogen and phosphorus removal effect can be improved, and CO2 emission in the sewage treatment process can be reduced, so that the pollution reduction and carbon reduction coordinated synergism target of sewage treatment can be realized.

Method for recycling cyanobacteria mud and kitchen waste by using hermetia illucens larvae

Resumen de: CN119924265A

The invention belongs to the technical field of organic waste recycling, and particularly relates to a method for recycling cyanobacteria mud and kitchen waste by using hermetia illucens larvae. And mixing the pretreated cyanobacteria mud with the kitchen waste to obtain a mixed feed, and adding a bacillus inoculant for aerobic fermentation to obtain hermetia illucens larvae and larva sand. By regulating and controlling the matching of the matrix and the synergistic effect of the fungicide, the nutritional value and the utilization efficiency of the mixed feed are increased, and the black soldier flies grow faster in the early stage. The bred hermetia illucens larvae can be used as a high-quality protein feed, and the larva sand can be used as an organic fertilizer raw material. According to the method disclosed by the invention, collaborative recycling of the cyanobacteria and the kitchen waste is realized, and a biological solution capable of being applied on a large scale is provided for treatment and utilization of the water-blooming cyanobacteria mud.

Multi-channel tubular photo-oxidation bioreactor device

Resumen de: CN222821568U

The utility model discloses a multichannel tubular photo-oxidation bioreactor device, which relates to the technical field of microalgae culture and online monitoring and comprises a water bath box, a gas regulation and control module, a dissolved oxygen monitoring module, an optical density monitoring module and a PH (potential of hydrogen) monitoring module. A glass culture tube and a temperature control module are mounted in the water bath box, the dissolved oxygen monitoring module extends into the glass culture tube through a probe or a sensor, and the optical density monitoring module is in contact with the glass culture tube through an optical sensor or a probe, so that accurate culture conditions are provided, and the microalgae culture efficiency is improved; according to the device, a controllable algae culture environment is provided, meanwhile, real-time monitoring of dissolved oxygen, OD value, PH and temperature is achieved, collection and analysis of scientific research data are facilitated, a user can conveniently set a culture program and check measurement data through a graphical interface of a control system, and the device is convenient to install and use due to the compact machine body structural design.

SYSTEM AND METHOD FOR CULTIVATING AND HARVESTING CYANOBACTERIAL BIOMASS

Resumen de: US2025136922A1

Disclosed is a system for cultivating and harvesting a cyanobacterial biomass. The system comprises at least one vessel that, when in operation, grows the cyanobacterial biomass in a nutrient growth media under regulated growth conditions and a base unit configured to receive the at least one vessel. The system also comprises at least one light source and a cultivation air pump that, when in operation, supplies light, heat and air to the at least one vessel. Notably, the cultivation air pump supplied air via a one-way air valve in the at least one vessel. The system also comprises at least one photodiode that, when in operation, measure a cyanobacterial biomass concentration in the at least one vessel. Disclosed also is a method for cultivating and harvesting a cyanobacterial biomass.

BIO-BASED TAURINE PRODUCTION

Resumen de: US2025137018A1

The present invention describes methods for the fermentative production of taurine-containing products from unicellular organisms. More particularly, the invention relates to genetic modifications of the taurine and/or substrate biosynthetic pathways in unicellular organisms that include bacteria, algae, microalgae, diatoms, yeast, or fungi. The invention also relates to fermentation and processing methods for the production of various taurine-containing products. The invention also relates to the use of the cells, fermentation broth or extracts that contain taurine to produce products for use in food, feed, beverages, dietary and health supplements, cosmetics, personal care, pharmaceuticals, or agricultural production.

CHLORELLA MICROALGA AND USE THEREOF IN WASTEWATER TREATMENT

Resumen de: WO2025086320A1

Provided are a Chlorella microalga and the use thereof in wastewater treatment, the microalga being Chlorella sp., and the accession number thereof being CCTCCM 20231952. The wastewater includes municipal wastewater, food processing wastewater, printing and dyeing industrial wastewater and animal husbandry breeding wastewater.

Active cyanobacteria dry land fertilizer as well as preparation method and application thereof

Resumen de: CN119899054A

The invention belongs to the technical field of agricultural biology and the technical field of compound fertilizers, and discloses an active cyanobacteria dry land fertilizer and a preparation method and application thereof.The method comprises the following steps that cyanobacteria is cultured and harvested to obtain cyanobacteria concentrated pulp, then the cyanobacteria concentrated pulp is rinsed with a drying protective agent, and the active cyanobacteria dry land fertilizer is obtained; preferably, symbiotic rhizobium is added into the cyanobacteria concentrated slurry, and the cyanobacteria concentrated slurry is mixed with a matrix material to obtain a cyanobacteria embedding material; then drying and crushing the cyanobacteria concentrated slurry or the cyanobacteria embedding material to obtain cyanobacteria dry powder; and adding the cyanobacteria dry powder into a plant fertilizer or an edible fungus fertilizer or water or a soil improvement product to obtain the active cyanobacteria dry land fertilizer. Based on adsorption and embedding of plant growth promoting substances contained in cyanobacteria by the drying protective agent, the active cyanobacteria dry land fertilizer has the advantages of being resistant to storage and transportation, capable of remarkably promoting plant growth, suitable for various field environments, capable of improving soil and increasing fertility and the like.

Self-control type food wastewater advanced treatment reactor based on algal membrane and use method of self-control type food wastewater advanced treatment reactor

Nº publicación: CN119898922A 29/04/2025

Solicitante:

JIANGSU HAIYI ENVIRONMENTAL TECH CO LTD
HOHAI UNIV
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Resumen de: CN119898922A

The invention discloses an algal membrane-based self-controlled food wastewater advanced treatment reactor and a use method, and relates to the field of food production wastewater treatment, and the algal membrane-based self-controlled food wastewater advanced treatment reactor comprises a water absorption room, a microalgae biological treatment unit, an ultrafiltration membrane separation unit, an effluent and biomass collection device and a computer control system. The secondary treatment effluent of the food processing wastewater flows into the water absorption chamber through the water inlet pipe, most of original suspended matters are removed through the ceramsite layer and the gravel layer, the effluent enters the microalgae biological treatment unit through the water absorption pipe, and main residual pollutants such as nitrogen, phosphorus and organic matters in the secondary treatment effluent of the production wastewater are removed in the microalgae biological treatment unit. Meanwhile, microalgae utilize nutrient substances in the wastewater to accumulate biomass, and after the microalgae biomass is accumulated to a certain level, algae liquid of the microalgae biological treatment unit enters the ultrafiltration membrane separation unit to separate the microalgae from the wastewater, so that the traditional MBR treatment process is optimized, the occupied space is reduced, and the wastewater treatment efficiency is improved. The method has a wide application pros