Method and apparatus for removing minerals from a water source
AssigneeSouthwest Turf Solutions, Inc.
InventorLeonard L. Dueker
Life of this patent
Estimating the term…
Abstract
A system and method for removing minerals from a water source and concentrating these minerals for ease of reuse or disposal includes first passing the water from a suitable source through an input stage consisting of a micro filtration filter or an ultra filtration filter. The output of this input stage is coupled with cascaded membrane filters in various combinations. Periodic backwashing of the input filter stage produces backwash supplied to a slow sand filter, the output of which is supplied back to the input stage in combination with the water from the source of water.
Claims20
A method for removing minerals from a water source including:
- passing water from a source of water through a first filter unit in the form of a micro filtration or ultra filtration filter;
- supplying the output of the first filter unit to a point of use;
- periodically backwashing the first filter unit;
- supplying the backwash from the first filter unit to a slow sand filter;
- and supplying the output of the slow sand filter to the input of the first filter unit to combine with water from the source of water.
A system for removing minerals from a water source including:
- a source of water;
- a first filter unit in the form of a micro filtration filter or an ultra filtration filter having an input connected to the source of water and also having a product output and a backwash output;
- a slow sand filter having an input connected with the backwash output of the first filter unit and having an output connected to the input of the first filter unit in combination with the source of water.
A system for removing minerals from a water source including:
- a source of water;
- a cascade of at least three membrane filters, each having an input, a product output and a reject output, with the source of water connected to the input of the first membrane filter in the cascade and with the reject output of each of the membrane filters in the cascade supplied to the next input of the next succeeding membrane filter in the cascade, with the reject output of the last membrane filter in the cascade supplied to disposal;
- a point of use and the product output of each of the membrane filters in the cascade supplied to the point of use.
Dependencies are inferred from the claim text.