13 results about "Raceway pond" patented technology

A computer-implemented method for culturing algae in a raceway pond is provided, the method comprising receiving input data indicative of one or more properties of the raceway pond, predicting a state of the raceway pond using a model, based on the input data, and automatically adjusting one or more operating conditions of the raceway pond, based on the predicted state, by outputting a control signal to at least one apparatus, wherein the control signal is calculated to increase or maintain the growth rate of the algae. Also provided is a computer-implemented method, comprising receiving first data indicative of one or more properties of a raceway pond, predicting a state of the raceway pond using a model, based on the received first data, and iteratively receiving further data indicative of one or more properties of the raceway pond from a raceway pond sensing / monitoring apparatus, updating the predicted state of the raceway pond using the model, based on the received further data, and providing an output to a display based on the updated predicted state. Corresponding devices, computer-readable media and systems are also disclosed.

The present application belongs to the field of bioengineering, and particularly relates to a method for controlling pests in an open culture system of microalgae based on light-induced coupling electric inhibition. The main steps are as follows: a light irradiation device and a high-voltage discharge device are arranged on one side of a raceway pond; first, light-induced treatment is performed, and the raceway pond is irradiated at the same time, the irradiated light at the left curve and the right curve is blue light with an intensity of 1500-2000 Lux; the irradiated light at the upper raceway and the lower raceway is red light with an intensity of 1000-2000 Lux; so as to attract rotifers to the left curve and the right curve to form rotifer aggregation areas; then, the rotifer aggregation areas at the left curve and the right curve are subjected to electric shock treatment; the present application can kill rotifers while protecting the survival of algae as much as possible, and can effectively remove most of the pest pollution through the combined regulation of light induction and high-voltage discharge, so as to ensure that the growth of microalgae biomass and the accumulation of bioactive substances are less affected, and the application prospect is wide.

This invention discloses a switching system and method for regulating the water depth of a microalgae raceway pool, belonging to the technical field of microalgae cultivation. The system includes a raceway pool with a lifting overflow weir mechanism on one side. An overflow collection trough and a storage tank are located on the side of the lifting overflow weir mechanism away from the raceway pool. A drain pipe and a return pump connect the overflow collection trough and the storage tank. The return pump is connected to the drain pipe and a return pipe is connected to the return pump. The end of the return pipe away from the return pump is connected to the raceway pool. By adjusting the height of the lifting overflow weir mechanism to change the overflow boundary, and in conjunction with the storage and return, the water depth can be switched during the inoculation period, rapid growth period, high-density cultivation period, and diurnal conditions. During the day, the water depth is lowered to shorten the light path and improve light reception efficiency, while at night, the water depth is increased to enhance temperature stability. This system achieves low-cost modification without altering the existing raceway pool structure and is suitable for the large-scale cultivation of microalgae such as Spirulina, Chlorella, Scenedesmus, and Dunaliella.

The invention relates to methods for producing carotenoids by culturing algae in land-based mariculture using a "hurry up and wait" approach in which growth rates are maximised upstream for maximum throughput and decreased quickly via intensive stressing before harvest.

The invention relates to the technical field of microalgae organism breeding, and discloses a method for breeding microalgae organisms in breeding sewage. Comprising a biological membrane microalgae reactor, a microalgae harvesting device, a sewage post-treatment device, a particulate matter sedimentation tank, an adjusting tank, an anaerobic sludge reactor, a secondary sedimentation tank, a raceway pond microalgae reactor, a first valve, a second valve, a third valve, a fourth valve and a fifth valve. The particulate matter settling pond is used for settling solid particles in the sewage, so that the sewage is suitable for fermentation or microalgae culture. According to the method for culturing the microalgae organisms in the culture sewage, a microalgae organism culture technology is implemented in the culture sewage, so that a large amount of high-COD, high-ammonia-nitrogen and high-suspended matters generated by culture in the sewage are treated by utilizing the microalgae organisms, high-efficiency and low-cost sustainable treatment of the sewage and culture wastes is realized, and meanwhile, sewage treatment measures are prepared; sewage treatment can be assisted at the same time, and the safety of the breeding environment is improved.

The application provides a device for improving the mixing efficiency of a phototrophic microbial cultivation liquid in a raceway pond, and relates to the field of phototrophic microbial cultivation equipment. The device comprises a raceway pond, wherein a plurality of turbulence components for destroying the laminar flow state of the cultivation liquid and enabling the laminar flow to form a turbulent flow state are arranged in the raceway pond. The turbulence components comprise a fixing frame, the fixing frame is detachably connected to the raceway pond, and the fixing frame is provided with a flow guide. The device can destroy the laminar flow of the phototrophic microbial cultivation liquid in the raceway pond, realize the mixing of different laminar flows, and strengthen the mixing of the cultivation liquid in the light direction, thereby improving the conversion frequency of the phototrophic microbial cells in the light and dark areas, enabling the phototrophic microbial cells in different depths to realize light and dark cycles, improving the utilization efficiency of natural light by the phototrophic microorganisms, and increasing the yield of the large-scale production of the phototrophic microorganisms.

The present invention relates to methods for producing high value products (HVPs) by culturing algae in land-based mariculture using a 'hurry up and wait' approach to algal cultivation, in which growth rates are maximised upstream for maximum throughput and decreased quickly via intensive stressing before harvest. The invention also relates to a 'split pond' approach, in which the pond train becomes non-linear to facilitate the 'hurry up and wait' approach, with a maximal increase in light stress pre-harvest.

There are closed systems of growing microalgae but as they are not able to produce algal biomass economically they are very few and far between and are only used to grow microalgae for very expensive produce. These closed systems also require large space. The result of the lack of economic closed systems is why almost all algal biomass production currently uses raceway ponds. This invention integrates a new compact. very economic and highly productive closed system of growing microalgae including good parameter control with carbon sequestration from say a coal fired power plant or organic waste management in a way that makes the whole process financially attractive and cyclic and if desired it could be made carbon negative. The compact nature of this invention allows algal farms to be sited next to most sources of carbon dioxide.

The invention relates to a system for integrating microalgae carbon sequestration and desert ecological restoration. The system comprises a CO2 absorption area raceway pond reactor, a microalgae culture area raceway pond reactor, a sprinkling irrigation device and a control device. According to the system disclosed by the invention, efficient capture of CO2 and large-scale culture of microalgae are realized through a raceway pond partition design, floating ball filler circulation and an intelligent control technology. The harvested microalgae are prepared into algae liquid, desert soil is improved through a sprinkling irrigation system, the organic carbon content is remarkably increased, salinization is reduced, and vegetation recovery is promoted. The technology integrates carbon emission reduction and ecological restoration functions, and provides an innovative solution for industrial flue gas treatment and desertification control.

The present invention relates to methods for producing high value products (HVPs) by culturing algae in land-based mariculture using a 'hurry up and wait' approach to algal cultivation, in which growth rates are maximised upstream for maximum throughput and decreased quickly via intensive stressing before harvest. The invention also relates to a 'split pond' approach, in which the pond train becomes non-linear to facilitate the 'hurry up and wait' approach, with a maximal increase in light stress pre-harvest.

The invention provides a building method of a circulating raceway pond separating wall of a breeding ship, and relates to the technical field of ship building, in particular to the technical field of building of separating walls of breeding ships, which comprises the following steps: building a primary body of the separating wall based on an end arc-shaped plate, a top plate and a first wall plate of the separating wall, and cutting a second wall plate according to the primary body of the separating wall; and a plurality of independent second wallboard blocks are obtained, after the separation wall building primary body is welded to the runway pond bottom plate, all the independent second wallboard blocks are welded to the separation wall building primary body through the whole-strip welding plug welding technology, welding of the second wallboards is achieved, and building of the separation wall is completed. According to the technical scheme, the problem that in the prior art, welding is affected due to the fact that a closed space or a narrow space exists in the building process of an isolation wall of a circulating raceway pond of a breeding ship is solved.

A computer-implemented method for culturing algae in a raceway pond, comprising receiving input data of one or more properties of the raceway pond, predicting a state of the pond using a model and aut