how can the algae be cultured?

Answer 1

you can use N-11 media for algal culture.

Answer 2

Algae can be cultured in raceway-type ponds and lakes [1] Due to the fact that these systems are "open" to the elements, sometimes called "open-pond" systems, they are much more vulnerable to being invaded by other algal species and bacteria. The number of species that have been successfully cultivated for a given purpose, (ie: as a food source, for oil production, or for pigments.), in an outdoor system, are relatively small. In open systems you do not have control over water temperature, and you have little control over lighting conditions. The growing season is largely dependent on location and, aside from tropical areas, is limited to the warmer months. Some of the benefits of this type of system are that it is one of the cheaper ones to produce - at the most basic you only need to dig a trench or pond. It also has one of the largest production capacities compared to other systems, and depending on how large it's made. A variation on the basic "open-pond" system is to close it off, to cover a pond or pool with a greenhouse. While this usually results in a smaller system, (for economic reasons), it does take care of many of the problems associated with an open system. It allows more species to be able to be grown, it allows the species that are being grown to stay dominant, and it extends the growing season, only slightly if unheated, and if heated it can produce year round.

Algae can be grown in a photobioreactor. A photobioreactor is basically a bioreactor which incorporates some type of light source. While almost anything that it would be possible to grow algae in could technically be called a photobioreactor, the term is more commonly used to define a closed system, as opposed to an open tank, or pond. Because these systems are closed, when used to cultivate algae, everything that the algae need to grow, (carbon dioxide, nutrient-rich water and light), all must be introduced into the system. A pond covered with a greenhouse could be considered a photobioreactor.

Different types of photobioreactors include:

* Tanks provided with a light source.
* Polyethylene sleeves or bags.
* Glass or plastic tubes.

Answer 3

Very easily in the lab. On a larger scale, other microorganisms, like bacteria, can become a problem. Creating a pure culture is fairly easy, but keeping that culture free from othe microorganisms is tough.

Answer 4

stop washing your dishes