Systems and methods for removing contaminate material from a flowable material

A tank assembly for holding first and second removal materials, comprising:

• a first container defining a first chamber;
• a second container defining a second chamber, where the second container is arranged within the first chamber to define a lower portion, an upper portion, and an annular portion of the first chamber;
• a bottom grate arranged within the second chamber, where the bottom grate divides the second chamber into a lower portion and a filter portion;
• a lower outer fiber pad arranged within the first chamber;
• an upper outer fiber pad arranged within the first chamber;
• an inner fiber pad arranged within the second chamber;
• the filter portion of the second chamber is adapted to contain the first removal material;
• and
• the annular portion of the first chamber is adapted to contain the second removal material.

A tank assembly for holding first and second removal materials, comprising:

• a first container defining a first chamber;
• a second container defining a second chamber, where
• the second container is arranged within the first chamber to define a lower portion, an upper portion, and an annular portion of the first chamber, and
• the second chamber comprises a lower portion and a filter portion;
• and
• a bottom grate adapted to support the first removal material within the filter portion of the second chamber and to allow fluid flow between the filter portion and the lower portion of the second chamber;
• wherein
• the filter portion of the second chamber is adapted to contain the first removal material;
• and
• the annular portion of the first chamber is adapted to contain the second removal material.

A tank assembly for holding first and second removal materials, comprising:

• a first container defining a first chamber;
• a second container defining a second chamber, where
• the second container is arranged within the first chamber to define a lower portion, an upper portion, and an annular portion of the first chamber, and
• the second chamber comprises a lower portion and a filter portion;
• a bottom grate arranged within the second chamber;
• and
• an inner fiber pad arranged within the second chamber;
• wherein
• the filter portion of the second chamber is adapted to contain the first removal material;
• the annular portion of the first chamber is adapted to contain the second removal material;
• the bottom grate is adapted to support the first removal material within the filter portion of the second chamber and to allow fluid flow from the lower portion to the filter portion of the second chamber;
• and
• the inner fiber pad is adapted to support the first removal material within the filter portion of the second chamber and to allow fluid flow from the filter portion of the second chamber to the lower portion of the first chamber through an intermediate conduit.

A tank assembly for holding first and second removal materials, comprising:

• a first container defining a first chamber;
• a second container defining a second chamber, where
• the second container is arranged within the first chamber to define a lower portion, an upper portion, and an annular portion of the first chamber, and
• the second chamber comprises a lower portion and a filter portion;
• and
• a lower outer fiber pad arranged within the first chamber;
• wherein
• the filter portion of the second chamber is adapted to contain the first removal material;
• the annular portion of the first chamber is adapted to contain the second removal material;
• and
• the lower outer fiber pad is adapted to support the second removal material within the annular portion of the second chamber and to allow fluid flow from the lower portion of the first chamber to the annular portion of the first chamber.

A tank assembly for holding first and second removal materials, comprising:

• a first container defining a first chamber;
• a second container defining a second chamber, where
• the second container is arranged within the first chamber to define a lower portion, an upper portion, and an annular portion of the first chamber, and
• the second chamber comprises a lower portion and a filter portion;
• and
• an upper outer fiber pad arranged within the first chamber;
• wherein
• the filter portion of the second chamber is adapted to contain the first removal material;
• the annular portion of the first chamber is adapted to contain the second removal material;
• and
• the upper outer fiber pad is adapted to support the second removal material within the annular portion of the second chamber and to allow fluid flow from the annular portion of the first chamber out of the first container.