Vertical Tank Photobioreactor for Accelerated Algae Growth

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Solution Overview

Problem

Existing algae growth processes lack efficiency in producing algae at an accelerated rate, do not utilize recycled waste materials effectively, and fail to achieve high output production of crude oil using the same strain of algae under controlled conditions, resulting in environmental impact and limited scalability.

Innovation Solution

A vertical tank photobioreactor system using recycled waste water, internal LED lighting, compressed air for CO2 supply, and a harvester dryer to produce a high yield of Nannochloropsis oculata algae, with byproducts recycled for sustainable energy and water reuse, generating clean air, water, and electricity, and producing crude oil for internal combustion engine fuels.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If conventional algae growth processes are used, then algae production can be achieved, but the growth rate is not accelerated and productivity is limited

Engineering Contradiction:
Improvealgae production rateVSAvoidgrowth time
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The patent implements periodic action through controlled circulation cycles in the photobioreactor, where algae culture is continuously circulated between growth zones and harvesting zones. This periodic movement optimizes light exposure, nutrient distribution, and CO2 supply throughout the growth cycle, accelerating algae production while maintaining sustainable growth rates

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The system applies parameter changes by controlling multiple variables simultaneously including light intensity from LED arrays, temperature through climate control, CO2 concentration from compressed air injection, and nutrient composition in recycled water. These optimized parameter combinations create ideal growth conditions that accelerate algae productivity without compromising growth sustainability

Inventive Principle:
Principle #35Parameter changes

2Object-affected harmful factors

If waste materials are not recycled, then the process is simpler, but environmental impact increases and resource efficiency decreases

Engineering Contradiction:
Improveenvironmental impactVSAvoidprocess complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent implements discarding and recovering by harvesting a portion of algae biomass from the photobioreactor while returning the remaining culture to continue growing. Additionally, waste heat from the process is recovered for heating purposes, and CO2 from combustion is captured and reused as a nutrient source for algae, transforming waste streams into valuable resources and minimizing environmental impact

Inventive Principle:
Principle #34Discarding and recovering

Solution Approach 2:

The system applies self-service through integrated recycling loops where the algae production process generates its own inputs. The system uses recycled water containing nutrients for algae growth, captures CO2 from combustion for carbonation, and generates heat from biomass combustion for process heating. This self-sustaining approach reduces external resource requirements and environmental footprint while managing process complexity through integration

Inventive Principle:
Principle #25Self-service

3Productivity

If high output production is achieved, then crude oil production increases, but resource consumption and environmental footprint may increase

Engineering Contradiction:
Improvecrude oil production outputVSAvoidenergy consumption
Core Design Contradiction:
ProductivityVSLoss of energy

Solution Approach 1:

The patent converts harm into benefit by using combustion of algae biomass or associated waste materials to generate heat and CO2, which are then fed back into the system. The combustion process produces thermal energy for heating the photobioreactor and generates CO2 that serves as a essential nutrient for algae growth. This transforms potential waste and emissions into valuable resources, enabling high output crude oil production while minimizing energy loss and environmental impact

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

4Reliability

If sustainable recycling processes are implemented, then environmental sustainability improves, but process complexity and infrastructure requirements increase

Engineering Contradiction:
Improveprocess sustainabilityVSAvoidsystem infrastructure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies universality by designing components that perform multiple functions. The photobioreactor serves both as a growth chamber and a circulation system. The compressed air system provides both oxygen for algae and CO2 through controlled decomposition. The heating system uses heat exchangers that can both heat and cool the culture as needed. This multi-functionality reduces the number of separate infrastructure components needed while maintaining sustainable recycling processes

Inventive Principle:
Principle #6Universality (Multi-functionality)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The system achieves accelerated algae growth, high output production with minimal environmental footprint, using renewable resources and recycling byproducts to create a self-sustaining process for producing aviation fuel, gasoline, and diesel fuel, with no carbon emissions or contamination.

Implementation Method 1

a photobioreactor, which incorporates internal LED light sources of an optimal wavelength to grow the algae source within the bioreactor

Methodology Applied
Scientific EffectLight Emitting Diode: Light Emitting Diode

Implementation Method 2

the algae product supplied in wet or dry form for the further production of biofuels through the conversion of the algae to crude oil

Methodology Applied
Scientific EffectPhotosynthesis: Photosynthesis

Implementation Method 3

a compressed air source to supply the bioreactor with air to provide CO2 to the algae culture within the bioreactor and also to move the biomass algae within the bioreactor at a gentle flow without damage to the algae

Methodology Applied
Scientific EffectGas compression: Compression

Implementation Method 4

a harvester condenser for removal of excess water from the harvested algae from the bioreactor

Methodology Applied
Scientific EffectCondensation: Condensation

Implementation Method 5

a steam powered electrical generator to supply the system with electric power using the water taken from the primary harvester and harvester dryer

Methodology Applied
Scientific EffectSteam power: Heat Engine

Implementation Method 6

with garbage, trash, wood waster, rubbish and other combustible waster to supply heat to the process, to generate CO2 for the growth of the algae

Methodology Applied
Scientific EffectCombustion: Combustion

Data Source

PatentUS9206388B1Process for a sustainable growth of algae in a bioreactor and for the extraction of a biofuel product
Publication Date: 2015.12.08 STROIAZZO MOUGIN ALIX V J
  • US9206388B1 patent drawing

AI summary

A process for accelerated and sustainable algae growth using a vertical tank photobioreactor, which includes steps involving the sustainable algae growth, preferably of the strain nannochloropsis oculata, the harvest of a portion of the algae in a harvester apparatus, the reduction and recycling of byproducts using recycled waste and conversion of gasses to useable and sustainable recycling within the process, the algae product supplied in wet or dry form for the further production of biofuels through the conversion of the algae to crude oil.