Method and device for sewage treatment
OwnerUlrich Brauninventor
Life of this patent
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Abstract
The present invention relates to a process for utilizing waste waters which comprises the separate collection of gray water and/or black water and membrane filtration of the separately collected gray water and/or solids/liquid separation of the separately collected black water. The present invention preferably relates to a process for producing potable water from gray water or one or more of its partial streams. Moreover, an apparatus for producing potable water from gray water and an apparatus for utilizing black water and its use is described.
Claims27
A process for utilizing waste waters;
- the process comprising:
- (a) separately collecting gray water, or one or more partial streams thereof, and black water, or faecal discharges and urinal discharges;
- (b) selectively performing solids/liquid separation of the gray water and the black water or the faecal discharges and urinal discharges separately collected in (a);
- (c) selectively performing oxidation by microorganisms of the liquid phases of the gray water and the black water or the faecal discharges and urinal discharges obtained in (b);
- and
- (d) selectively performing solids/liquid separation of at least one of the liquid phases obtained in (c).
A process for utilizing waste waters;
- the process comprising:
- (a) separately collecting gray water and black water, wherein the black water is collected from toilets with or without urinals;
- (b) performing membrane filtration of the gray water separately collected in (a), and
- (ba) separately performing solids/liquid separation of the black water separately collected in (a);
- (c) performing oxidation by microorganisms of the liquid phases obtained in (ba);
- (d) performing solids/liquid separation of the product obtained in (c);
- (e) selectively utilizing the liquid phase obtained in (d) for at least one of
- (i) collecting black water according to (a);
- and
- (ii) as mineral fertilizer;
- and
- (f) optionally repeating (a) through (e) one or more times.
A process for producing potable water from gray water or from one or more partial streams thereof, the process comprising:
- (a) separately collecting gray water or one or more partial streams thereof and creating a mixture by selectively mixing the gray water, or the one or more partial streams thereof, with sea water;
- (b) selectively performing membrane filtration of the mixture;
- wherein the membrane filtration is carried out by one of reverse osmosis, ultrafiltration, or microfiltration;
- and
- (c) selectively performing desalinization of the mixture where the membrane filtration in (b) is carried out by ultrafiltration or microfiltration.
Dependencies are inferred from the claim text.