Intelligent automated microalgae cultivation system

Abstract

An intelligent automated microalgae cultivation system includes a feeding device, a microalgae cultivation device, an algae-water separation device, and an intelligent automated monitoring device. The microalgae cultivation device includes a photosynthetic reactor. The photosynthetic reactor receives algae inoculum and nutrient solution from the feeding device for amplified cultivation with carbon dioxide to form the cultivated product. The algae-water separation device processes the cultivated product to obtain separated recycled water and algae sludge, and the recycled water enters the photosynthetic reactor. The intelligent automated monitoring device includes a first detection device, a second detection device, and an AI server. This novel intelligent automated microalgae cultivation system can sustainably utilize water resources to achieve zero wastewater discharge, and monitors the temperature and pH of the amplified cultivation process and determines the optimal time for algae harvesting, thus achieving high microalgae cultivation efficiency.

Claims

1. An intelligent automated microalgae cultivation system, comprising: a feeding device, including an algae seed liquid storage tank operable to supply and allow an algae seed liquid to proceed along a first pipeline, a nutrient solution storage tank operable to supply and allow a nutrient solution to proceed along the first pipeline, and an algae seed liquid valve installed in the algae seed liquid storage tank, the algae seed liquid valve being used to allow the algae seed liquid storage tank to controllably supply the algae seed liquid; and a microalgae cultivation device, including a photosynthetic reactor connected to the feeding device, the photosynthetic reactor being used to receive the algae seed liquid and the nutrient solution from the feeding device for amplified cultivation with carbon dioxide to form a cultivation product, the photosynthetic reactor having a cultivation raw material inlet connected to the feeding device via the first pipeline, and a cultivation product outlet for supplying the cultivation product and allowing the cultivation product to proceed along a second pipeline; An algae-water separation device includes a solid-liquid separator and a filtration device. The solid-liquid separator is connected to the aquaculture product outlet of a photosynthetic reactor via a second pipeline. The solid-liquid separator is used to separate the aquaculture product from the photosynthetic reactor to obtain separated algae wastewater and algae sludge. The solid-liquid separator has an algae wastewater outlet, which allows the algae wastewater to proceed along a third pipeline. The filtration device is connected to the solid-liquid separator via the third pipeline and to the aquaculture feed inlet of the photosynthetic reactor via a first pipeline. The filtration device is used to filter the algae wastewater from the solid-liquid separator to obtain recycled water, and to... The collected water is transported back to the photosynthetic reactor from a filter outlet along the first pipeline; and an intelligent automated monitoring device includes a first detection device installed at the inlet of the culture material, a second detection device installed at the outlet of the culture product, and an AI server. The first detection device can be operated to measure the temperature and pH value during the scale-up culture, and the second detection device can be operated to measure the algae concentration during the scale-up culture. The second detection device has an algae concentration detector that can be operated to measure the algae concentration during the scale-up culture. The AI ​​server is connected to the first detection device, the second detection device, the photosynthetic reactor, and the algae seed liquid valve. The algae concentration detector generates and transmits a voltage signal corresponding to the algae concentration to the AI ​​server based on the detected algae concentration during the scale-up culture. The AI ​​server determines whether the voltage value indicated by the voltage signal reaches an algae collection voltage value, and also determines whether the voltage value indicated by the voltage signal is lower than an algae replenishment voltage value. When the voltage value for replenishing algae is less than the voltage value for collecting algae, the AI ​​server determines that the voltage value has reached the voltage value for collecting algae. The AI ​​server then drives the photosynthetic reactor, which transports the culture product to the algae-water separation equipment for processing. When the AI ​​server determines that the voltage value is less than the voltage value for replenishing algae, the AI ​​server drives the algae seed liquid valve to open. Once the algae seed liquid valve is opened, the algae seed liquid storage tank transports the algae seed liquid to the photosynthetic reactor.

2. The intelligent automated microalgae cultivation system as described in claim 1, wherein, The algae-water separation equipment also includes a drying device located downstream of the solid-liquid separator for drying the algae sludge from the solid-liquid separator.

3. The intelligent automated microalgae cultivation system as described in claim 1, wherein, The microalgae cultivation equipment also includes a temperature control device connected to the photosynthetic reactor. The first detection device has a thermometer for measuring the temperature during the scale-up cultivation. The AI ​​server is also signal-connected to the temperature control device. The thermometer generates and transmits a temperature signal to the AI ​​server based on the measured temperature during the scale-up cultivation. The AI ​​server determines whether the temperature indicated by the temperature signal meets a set temperature. When the AI ​​server determines that the temperature does not meet the set temperature, the AI ​​server drives the temperature control device to adjust the temperature during the scale-up cultivation to meet the set temperature.

4. The intelligent automated microalgae cultivation system as described in claim 1, wherein, The feeding equipment also includes a nutrient solution valve installed in the nutrient solution storage tank, an acid-base regulator storage tank operable to supply and allow an acid-base regulator to advance along the first pipeline, and a pH regulator valve installed in the acid-base regulator storage tank. The nutrient solution valve is used to controllably supply the nutrient solution to the nutrient solution storage tank, and the pH regulator valve is used to controllably supply the pH regulator to the acid-base regulator storage tank. The first detection device has a pH detector for measuring the pH value during the scale-up culture. The AI ​​server is also signal-connected to the pH regulator valve and the nutrient solution valve. The pH detector generates and transmits a pH signal to the AI ​​server based on the detected pH value during the scale-up culture. The AI ​​server determines whether the pH value indicated by the pH signal conforms to a set pH value. When the AI ​​server determines that the pH value does not meet the set pH value, the AI ​​server drives at least one of the nutrient solution valve and the pH adjuster valve to open, so that the pH value of the scaled-up culture is adjusted to meet the set pH value.

5. The intelligent automated microalgae cultivation system as described in claim 1, wherein, The first detection device has a carbon dioxide concentration first detector for measuring the carbon dioxide concentration before the amplification culture. The carbon dioxide concentration first detector generates and transmits an initial carbon dioxide concentration signal to the AI ​​server based on the detected carbon dioxide concentration.

6. The intelligent automated microalgae cultivation system as described in claim 5, wherein, The second detection device also includes a second carbon dioxide concentration detector for measuring the carbon dioxide concentration after the amplification culture has been carried out. The second carbon dioxide concentration detector generates and transmits a final carbon dioxide concentration signal to the AI ​​server based on the detected carbon dioxide concentration.

7. The intelligent automated microalgae cultivation system as described in claim 6, wherein, The intelligent automated monitoring equipment also includes a display device that is connected to the AI ​​server via a signal. The AI ​​server calculates and generates a carbon capture efficiency message based on the initial carbon dioxide concentration signal and the final carbon dioxide concentration signal, and then transmits the carbon capture efficiency message to the display device.

8. The intelligent automated microalgae cultivation system as described in claim 1, wherein, The feeding equipment also includes a gas supply device operable to provide and advance carbon dioxide along the first pipeline.

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