A method and device for separating particles from a liquid having particles therein, using a filter sized to permit the liquid to flow through pores, while retaining a substantial portion of the particles on the filter, with an absorbent layer contacting the back of the filter to facilitate liquid movement away from the particles.

Method and apparatus for separating particles from a liquid

The present invention relates to processes for obtaining a lipid from a cell by lysing the cell, contacting the cell with a base and/or salt, and separating the lipid. The present invention is also directed to a lipid prepared by the processes of the present invention. The present invention is also directed to microbial lipids having a particular anisidine value, peroxide value, and/or phosphorus content.

Extraction of lipid from cells and products therefrom

A wastewater treatment method (200) includes the steps of supplying a wastewater influent (206) having nutrients for a population of phototactic heterotrophic microorganisms (204) to an aerated bioreactor (202). At least a portion of the nutrients is converted into the phototactic heterotrophic microorganism population (204). The wastewater influent (206) and the phototactic heterotrophic microorganism population (204) together form a bioreactor effluent (210) that is transferred to a light clarifier (212). The bioreactor effluent (210) is concentrated in the light clarifier (212) to form a low- solids effluent (216) and a high-solids effluent (214). The concentration is performed by inducing the population of phototactic heterotrophic microorganisms (204) to phototactically self concentrate through exposure to a light having at least one of an intensity and a wavelength sufficient to cause the phototactic heterotrophic microorganism population (204) to migrate away from a source of the light.

System and method for treating wastewater via phototactic heterotrophic microorganism growth

The present invention relates to processes for obtaining a lipid from a cell by lysing the cell to form a lysed cell composition and obtaining the lipid from the demulsified lysed cell composition. The invention is also directed to a lipid prepared by the processes of the present invention. The invention is also directed to microbial lipids having a particular anisidine value, peroxide value, and/or phosphorus content.

Processes for obtaining microbial oil from microbial cells

The present invention relates to a system for cultivation of algae, extraction of lipids and transesterification of the lipids to obtain biodiesel. The system comprises three sections, that is to say cultivation, extraction and storage and reaction. In the lipid extraction area there is an ultrasonic reactor wherein the external walls of the alga are ruptured together with those of the oil sac to permit the extraction of lipids in the transesterification area there is also an ultrasonic reactor which ruptures the molecules of the fluid which passes therethrough to accelerate the reaction and render it almost immediate.

Process and apparatus for extracting biodiesel from algae

A method of algal oil production including the steps of: control growing to provide intensive growth to supply starting means for algae farming. Farming algae from using primarily sunlight. Processing algae produced from the farmed algae preferably using a wet extraction process: and wherein at least one of the steps includes use of a bag able to be interconnected to gas or liquid flows of at least one of water, CO2, oxygen or air.

Algae growth for biofuels

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Algae growth for biofuels