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(11)    Patent No :    AP 2346   
(21)    Application No :    AP/P/2007/004242   
(22)    Filing Date :    19.11.2007   
(24)    Date of Grant &    02.01.2012   
           
(45)    Publication :

(30)  Priority Data           
(33) Country    (31)    Number    (32) Date
CL    3225    -2006    21.11.2006

(84)    Designated State

BW    GM    GH    KE    LS    MW  MZ   NA   SL
SD    SZ    T Z    UG    ZM    ZW

(73) Applicant(s)

CRYSTAL LAGOONS CORPORATION LLC, 16192 Coastal

Highway, Lewes, 19958-9776, Delware,
United States of America
(72) Inventors

FISCHMANN TORRES Fernando Benjamin, Chile

(74) Representative

FISHER CORMACK & BOTHA

(51)    International  Classification   C02F 1/00 (2006.01)

(54)    Title

Process to obtain water bodies larger than 15,000 M3 for recreational use with color transparency and cleaness characteristics similar to swimming pools or tropical seas at low cost.

(57)    Abstract

The invention discloses a process to implement and maintain water bodies larger than 15,000 m3 for recreational use, such as lakes or artificial lagoons, with excellent color, transparency and cleanness properties at low cost, which comprises the following steps: a.- providing a structure able to contain a large

water body larger than 15,000 m3;

b.    - feeding the structure of step (a) with inlet water having iron and manganese levels lower than 1.5 ppm and turbidity lower than 5 NTU;
c.    - measuring water pH, ideally it should be within a range lower than 7.8;

d.    - adding an oxidizing agent to the water contained in the structure of step (a), with which a 600 mV minimal ORP is controlled in water for a minimal

period of 4 hours and in maximal cycles of 48 hours;
e.- adding a flocculating agent in concentrations within 0.02 and 1 ppm with

maximal frequencies of 6 days and cleaning the bottom of the structure of step (a) with a suction device to remove precipitated impurities from the

bottom of said structure, together with the additional flocculants and;
f. - generating a displacement of surface water containing impurities and

surface oils by means of the injection of inlet water according to step (b), which generates said displacement in such a way to remove said surface

water by means of a system for impurities and surface oils removal arranged in the structure of step (a), which together with step (e) replaces traditional filtering. The present invention also discloses a structure to contain large water bodies comprising a system for the removal of impurities and surface

(56)    Documents Cited :    US 3 470 091 A    EP 1 420 130 A    US 5 143 623 A

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