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1. WO2020014109 - PROCÉDÉ DE TRAITEMENT DE REFLUX DE FRACTURATION ET D'EAU PRODUITE COMPRENANT UNE MATIÈRE RADIOACTIVE NATURELLE


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INTERNATIONAL SEARCH REPORT (ISR)
Part 1:  1  2  3  4  5  6          Part 2:  A  B  C  D  E 
International application No. Applicant's or agent's file reference
PCT/US2019/040779 5952-346
International filing date (day/month/year) (Earliest) Priority Date (day/month/year)
08 July 2019 10 July 2018
Applicant
VEOLIA WATER SOLUTIONS & TECHNOLOGIES SUPPORT
FOR FURTHER ACTION: See Form PCT/ISA/220 as well as, where applicable, item 5 below.
This international search report has been prepared by this International Searching Authority and is transmitted to the applicant according to Article 18. A copy is being transmitted to the International Bureau.
It is also accompanied by a copy of each prior art document cited in this report.
1. Basis of the report
a. With regard to the language, the international search was carried out on the basis of:
the international application in the language in which it was filed.
a translation of the international application into                                          which is the language of a translation furnished for the purposes of international search (Rules 12.3(a) and 23.1(b)).
b.
This international search report has been established taking into account the rectification of an obvious mistake authorized by or notified to this Authority under Rule 91 (Rule 43.6bis(a)).
c.
With regard to any nucleotide and/or amino acid sequence disclosed in the international application, the international search was carried out on the basis of a sequence listing:
2. Certain claims were found unsearchable
3. Unity of invention is lacking
4. Title of the invention
The text is approved as submitted by the applicant.
The text has been established by this Authority to read as follows:
5. Abstract
The text is approved as submitted by the applicant.
The text has been established, according to Rule 38.2, by this Authority as it appears in Box No. IV. The applicant may, within one month from the date of mailing of this international search report, submit comments to this Authority.

A process for treating frac flowback that contains barium, naturally occurring radioactive materials (NORM) and hardness for minimizing the amount of sludge produced that contains hazardous levels of NORM by employing a dual stage precipitation process. In the first stage a sulfate source is mixed with the frac flowback and barium sulfate and NORM is precipitated, t he frac flowback is subjected to a solids-liquid separation process to produce a first effluent and a first sludge. In the second stage hardness is precipitated from the first effluent by addition of an alkali reagent, said first effluent is also subjected to solids-liquid separation producing a second effluent and a second sludge. The first sludge is recycled and mixed with the frac flowback and the sulfate source in a sufficient amount t o maintain the NORM concentration in the second sludge at or below a threshold level.


6. Drawings
a.
The figure of the drawings to be published with the abstract is Figure No.     1    
as suggested by the applicant.
as selected by this Authority, because the applicant failed to suggest a figure.
as selected by this Authority, because this figure better characterizes the invention.
b.
none of the figures is to be published with the abstract.

A. CLASSIFICATION OF SUBJECT MATTER

     C02F 9/00 (2006.01)i; C02F 1/52 (2006.01)n; C02F 101/10 (2006.01)n; C02F 103/36 (2006.01)n
According to International Patent Classification (IPC) or to both national classification and IPC

B. FIELDS SEARCHED

Minimum documentation searched (classification system followed by classification symbols):
     C02F
Documentation searched other than minimum documentation to the extent that such documents are included in the fields searched:
Electronic data base consulted during the international search (name of data base and, where practicable, search terms used):
EPO-Internal, WPI Data

C. DOCUMENTS CONSIDERED TO BE RELEVANT

Category* Citation of document, with indication, where appropriate, of the relevant passages Relevant to claim No.
(1)
X
US 7963338 B1 (BADER MANSOUR S [US]) 21 June 2011 (2011-06-21)
1-8
figure 6
column 9, lines 33-40
column 12, line 23 - column 14, line 38
(2)
X
US 8894864 B2 (KARRS STANLEY R [US]; ALTMAN RICHARD A [US] ET AL.) 25 November 2014 (2014-11-25)
1-8
cited in the application
figure 1
paragraphs [0031] - [0032]
(3)
X,P
WO 2018132426 A1 (VEOLIA WATER SOLUTIONS & TECH [FR]; BIAGINI BRAD [US] ET AL.) 19 July 2018 (2018-07-19)
1-8
figures 2, 3
page 6, line 6 - page 7, line 12
page 9, line 14 - page 10, line 24
(4)
A
US 2017073255 A1 (VIDIC RADISAV D [US]) 16 March 2017 (2017-03-16)
1-8
paragraphs [0040], [0045]
(5)
A
US 2013248455 A1 (BLUMENSCHEIN CHARLES D [US] ET AL) 26 September 2013 (2013-09-26)
1-8
figure 1
paragraphs [0025] - [0030]
(6)
A
EP 2444377 A1 (GEN ELECTRIC [US]) 25 April 2012 (2012-04-25)
7
paragraph [0006]
*
Special categories of cited documents:
"A"
document defining the general state of the art which is not considered to be of particular relevance
"D"
document cited by the applicant in the international application
"E"
earlier application or patent but published on or after the international filing date
"L"
document which may throw doubts on priority claim(s) or which is cited to establish the publication date of another citation or other special reason (as specified)
"O"
document referring to an oral disclosure, use, exhibition or other means
"P"
document published prior to the international filing date but later than the priority date claimed
"T"
later document published after the international filing date or priority date and not in conflict with the application but cited to understand the principle or theory underlying the invention
"X"
document of particular relevance; the claimed invention cannot be considered novel or cannot be considered to involve an inventive step when the document is taken alone
"Y"
document of particular relevance; the claimed invention cannot be considered to involve an inventive step when the document is combined with one or more other such documents, such combination being obvious to a person skilled in the art
"&"
document member of the same patent family

D. INFORMATION ON PATENT FAMILY MEMBERS

Patent document cited in search report Publication date
(day/month/year)
Patent family member(s) Publication date
(day/month/year)
US 7963338 B1
21 June 2011
NONE
US 8894864 B2
25 November 2014
NONE
WO 2018132426 A1
19 July 2018
AR 110892 A1
CA 3049448 A1
GB 2572291 A
WO 2018132426 A1
15 May 2019
19 July 2018
25 September 2019
19 July 2018
US 2017073255 A1
16 March 2017
NONE
US 2013248455 A1
26 September 2013
AR 090500 A1
AU 2013239946 A1
CA 2866666 A1
US 2013248455 A1
WO 2013148615 A1
19 November 2014
09 October 2014
03 October 2013
26 September 2013
03 October 2013
EP 2444377 A1
25 April 2012
EP 2444377 A1
US 2012097614 A1
25 April 2012
26 April 2012
Name and mailing address of the ISA/:
European Patent Office
P.B. 5818, Patentlaan 2, 2280 HV Rijswijk,
Netherlands
Telephone No. (+31-70)340-2040
Facsimile No. (+31-70)340-3016
Date of the actual completion of the international search:
11 September 2019
Date of mailing of the international search report:
18 September 2019
Authorized officer:
Onel Inda, Santiago
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